CN206704960U - A kind of concrete mixing plant filler bin - Google Patents

Abstract

The utility model discloses a powder silo of a concrete mixing station, which solves the problem that the powder silo will generate relatively large vibration noise when the powder silo in the prior art is applied to a larger concrete mixing station, and the technical scheme thereof The main points are: including the cylinder with a discharge port at the bottom, the upper part of the cylinder is cylindrical and the lower end is conical. Both ends are connected to the central rotating shaft on the barrel through bearings, and also include a driving motor located at the top of the end cover to drive the central rotating shaft to rotate; the bottom of the central rotating shaft is fixed with a feeding screw blade, and the upper part of the central rotating shaft is fixed with a lowering hopper, and the side of the lowering hopper A feeding port is provided on the wall, a feeding port is provided in the middle of the feeding hopper, and the feeding screw blade extends into the feeding port. It has the advantages of making the powder easy to discharge and producing less noise.

Description

Powder silo of a concrete mixing station

technical field

The utility model relates to the technical field of concrete mixing plants, more specifically, it relates to a powder silo of a concrete mixing plant.

Background technique

In the production of new building materials, many powder materials are used as raw materials. For example, in the production of plasterboard, plaster powder, coagulant, and starch powder materials are used as raw materials; in the production of hollow concrete blocks, cement, sand (with The moisture content exceeds 5%) and other powdery materials as raw materials. At the same time, some of these raw materials also have a processing process. For example, plaster powder is made by frying raw gypsum powder. These powders are all stored or fed and measured by the powder silo as an intermediate link. In other words, there is a natural connection between the powder and the powder silo. During production, it often occurs that powders are easy to enter the warehouse and difficult to leave the warehouse. Powders with poor fluidity and high water content are more difficult to leave the warehouse (such as raw gypsum powder, fine sand with water, starch, cement, etc.).

Chinese utility model patent, publication number is CN205150758U, and the disclosure date is April 13, 2016, discloses a kind of powder silo, and the gist of its technical scheme is: comprise bin body, vibrating plate, upper connecting belt, eccentric motor 1, Discharging device, eccentric motor II, vibrating bucket, lower connecting belt, gear, square outlet, arc switch, handle, fixed bayonet and scale; the vibrating plate is welded on the vibrating bucket, and the upper connecting belt is arranged on the bin body and the vibrating bucket Between them, the upper connecting belt is connected with the upper end of the vibrating bucket, the lower end of the vibrating bucket is connected with the lower connecting belt, the eccentric motor I and the eccentric motor II are symmetrically arranged on both sides of the vibrating bucket, and the discharge device is arranged at the lower end of the lower connecting belt. The lower end of the bin body is equipped with a vibrating bucket and a vibrating plate. When the material needs to be taken out, the vibration of the motor drives the vibrating bucket and the vibrating plate to vibrate, so that the powder slides down and is discharged. The arc-shaped opening with gears is set so that the material falls from the middle all the time, and the set scale and bayonet can precisely control the size of the outlet through the handle.

The above-mentioned prior art is suitable for powder hoppers with small volumes, but relatively large vibration noise will be generated when they are applied to powder silos of concrete mixing plants with large volumes.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of this utility model is to provide a powder silo of a concrete mixing plant, which has the advantages of making the powder easy to discharge and producing less noise.

In order to achieve the above object, the utility model provides the following technical solutions:

A powder silo for a concrete mixing station, comprising a cylinder body with a discharge port at the bottom, a cylindrical upper part and a conical lower end, an end cover on the upper end of the cylinder body, a material inlet on the end cover, and a The upper and lower ends of the entire cylinder are connected to the central shaft through bearings, and also include the driving motor on the top of the end cover to drive the central shaft; the bottom of the central shaft is fixed with a feeding screw blade, and the upper part of the central shaft is fixed with a lower The hopper is provided with a feeding port on the side wall of the lower hopper, and the middle part of the lower hopper is provided with a feeding port, and the feeding screw blade extends into the feeding port.

With the above technical scheme, the powder enters the barrel from the feed port, the drive motor drives the central shaft to rotate, and the lower hopper rotates with the central shaft. The lower hopper is provided with a discharge port, and the powder falls from the discharge port to the bottom. The powder is conveyed upward through the feeding screw blade, and enters the lower hopper again from the feeding port. This reciprocating cycle realizes the flow of the powder inside the cylinder and prevents the agglomeration of the powder after standing still for a long time. At the same time, the above technical means Using the electric motor to input power has less noise than the way of vibration in the prior art to prevent the agglomeration of powder particles.

Further, the bottom surface of the lower hopper protrudes upwards to form a cone surface, and the material discharge port is located on the cone surface.

With the above technical scheme, the bottom surface of the lower hopper is an upwardly protruding conical surface, so that the powder entering the lower hopper from the upper material opening will slide down the conical surface due to the action of gravity, and fall from the lower material opening on the conical surface to circulate the powder. more smoothly.

Further, the side wall of the feeding port is fixed with a diversion surface arranged obliquely, a diversion port is formed between the diversion surface and the conical surface, and the diversion port is located on the front of the face.

With the above technical scheme, by setting the diversion surface, a diversion port is formed between the diversion surface and the conical surface, and the diversion port is located in front of the diversion surface in the direction of rotation of the lower hopper, so that when the lower hopper rotates, the lower hopper The powder inside enters the bottom of the diversion surface from the diversion port, moves downward along the diversion surface, and then falls from the discharge port, so that even if there is more powder in the lower hopper, the forced diversion through the diversion surface Therefore, the powder in the lower hopper can still fall smoothly from the lower material opening, and the circulation effect of the powder is improved.

Further, the side wall of the feeding port is fixed with an extension tube that extends downwards and sleeves around the outer periphery of the feeding screw blade.

Using the above technical scheme, by setting the extension pipe, the upper end of the helical blade extends into the extension pipe,

Further, a stirring rod is fixed on the central rotating shaft at the lower end of the extension pipe.

With the above technical solution, by setting the stirring rod, the stirring rod rotates together with the rotation of the center to stir the powder at the bottom of the cylinder, so that the powder particles are loosened, and the powder is more likely to rise with the feeding screw blade.

Further, the longitudinal section of the agitating rod is triangular, the base of the triangle is arranged horizontally, and the front slope of the triangle is inclined backward along the rotation direction of the central rotating shaft.

With the above technical scheme, the longitudinal section of the agitating rod is triangular, the bottom edge of the triangle is set horizontally, along the direction of rotation of the central shaft, the front slope of the triangle is inclined backward, and the dust moves upward and backward along the front slope, so that the dust particles Produce micro-displacement to prevent dust particles from sticking to each other.

Further, there are at least two feeding ports, and the feeding ports are evenly arranged around the central rotating shaft.

By adopting the above technical scheme, by arranging a plurality of feeding openings, and the feeding openings are evenly arranged around the central rotating shaft, the feeding speed can be increased and the feeding can be made more uniform at the same time.

Further, there are multiple stirring rods.

By adopting the above technical solution, the agitation intensity of the agitation rods is increased by arranging a plurality of agitation rods.

To sum up, the powder enters the barrel from the feeding port, the drive motor drives the central shaft to rotate, and the lower hopper rotates with the central shaft. The powder is conveyed upward through the feeding screw blade, and enters the lower hopper again from the feeding port. This reciprocating cycle realizes the flow of the powder inside the cylinder and prevents the agglomeration of the powder after standing still for a long time. At the same time, the above technical means Using the electric motor to input power has less noise than the way of vibration in the prior art to prevent the agglomeration of powder particles.

Description of drawings

Fig. 1 is the structural representation of present embodiment;

Figure 2 is a sectional view of the cylinder;

Fig. 3 is the sectional view of lower hopper;

Fig. 4 is a cross-sectional view of the cylinder from another angle of view.

Reference signs: 1. Outlet; 2. Cylinder; 3. End cap; 4. Inlet; 5. Central shaft; 6. Driving motor; 7. Feeding screw blade; 8. Discharging hopper; 9. Discharging port; 10, feeding port; 11, cone surface; 12, diversion surface; 13, diversion port; 14, extension pipe; 15, stirring rod; 16, support frame; 17, closed door; 18, cylinder ; 19, upper bearing; 20, lower bearing; 21, feed cover; 22, connecting column.

detailed description

The technical scheme of the utility model is described in detail below in conjunction with accompanying drawing.

A concrete mixing station powder silo, see Figure 1, includes a support frame 16, a cylinder 2 is supported on the support frame 16, the upper part of the cylinder 2 is cylindrical, the lower end is conical, and the top of the cylindrical part is provided with an end cover 3. The end cover 3 is provided with a feed port 4. In order to prevent rainwater from entering the cylinder 2 from the feed port 4, a feed cover 21 is hinged on the side wall of the feed port 4; the side wall of the tapered part is provided with Discharge port 1, discharge port 1 is connected with closed door 17 by chute, is fixed with cylinder 18 on the outside wall of tapered part, and the piston shaft end of cylinder 18 is fixedly connected with closed door 17.

Referring to Fig. 2, it also includes a central rotating shaft 5, which runs through the entire cylinder body 2, the upper end of the central rotating shaft 5 is fixed at the center of the end cover 3 through the upper bearing 19, and the lower end of the central rotating shaft 5 is fixed at the bottom of the cylinder body 2 through the lower bearing 20 .

The top of the end cover 3 is fixed with a driving motor 6, and the rotating shaft of the driving motor 6 and the upper end of the central rotating shaft 5 are fixed with two intermeshing bevel gears; see Fig. 2, Fig. 3 and Fig. 4, the upper part of the central rotating shaft 5 is fixed with a lower hopper 8 , the lower hopper 8 is a revolving body with an upwardly protruding conical surface 11, and the upper end of the lower hopper 8 is fixed on the central rotating shaft 5 through four connecting columns 22; the conical surface 11 is provided with a plurality of strip-shaped discharge ports 9, The discharge port 9 is evenly arranged with the central rotating shaft 5, and the side wall of the discharge port 9 is fixed with a diversion surface 12 arranged obliquely. The direction guide port 13 is located in front of the guide surface 12 .

The middle part of the lower hopper 8 is provided with a feeding port 10, and an extension pipe 14 extending downward is fixed on the side wall of the feeding port 10; a feeding screw blade 7 is fixed at the bottom of the central rotating shaft 5, and the feeding screw blade 7 extends into the feeding Mouth 10.

A plurality of stirring rods 15 are fixed on the lower end of the extension pipe 14 on the central rotating shaft 5 . The longitudinal section of the stirring rod 15 is triangular, the base of the triangle is arranged horizontally, and the front slope of the triangle is inclined backward along the direction of rotation of the central rotating shaft 5 .

The working process is that the powder enters the barrel 2 from the feeding port 4, the driving motor 6 drives the central rotating shaft 5 to rotate, the lower hopper 8 rotates together with the central rotating shaft 5, the powder falls from the feeding port 9 to the bottom, and the powder at the bottom It is conveyed upward by the feeding screw blade 7, and enters the lower hopper 8 again from the feeding port 10. This reciprocating cycle realizes the flow of the powder inside the cylinder 2 and prevents the powder from agglomerating after standing still for a long time.

The above are only preferred implementations of the utility model, and the scope of protection of the utility model is not limited to the above-mentioned embodiments, and all technical solutions under the thinking of the utility model all belong to the scope of protection of the utility model. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims (8)

1. a kind of concrete mixing plant filler bin, including bottom are provided with the cylinder (2) of discharging opening (1), cylinder (2) top is in cylinder Shape, lower end are provided with end cap (3) in cone, cylinder (2) upper end, and end cap (3) is provided with charging aperture (4), it is characterised in that：Also wrap The upper and lower side included through whole cylinder (2) is connected to the central rotating shaft (5) on cylinder (2) by bearing, in addition to positioned at end The motor (6) that the driving central rotating shaft (5) covered at the top of (3) rotates；Central rotating shaft (5) bottom is fixed with feeding helical blade (7), central rotating shaft (5) top is fixed with hopper (8), and hopper (8) is provided with feed opening (9), and hopper is set in the middle part of (8) There is feeding port (10), feeding helical blade (7) is stretched into feeding port (10).

A kind of 2. concrete mixing plant filler bin according to claim 1, it is characterised in that：The bottom of the hopper (8) The conical surface (11) is formed towards protruding above, the feed opening (9) is located on the conical surface (11).

A kind of 3. concrete mixing plant filler bin according to claim 2, it is characterised in that：Feed opening (9) side wall On be fixed with the guide face (12) being obliquely installed, between the guide face (12) and the conical surface (11) formed flow-guiding mouth (13), under Flow-guiding mouth (13) described in the direction of hopper (8) rotation is located at the front of the guide face (12).

A kind of 4. concrete mixing plant filler bin according to claim 3, it is characterised in that：Feeding port (10) side wall On be fixed with the extension (14) for being set in feeding helical blade (7) periphery extended downwardly.

A kind of 5. concrete mixing plant filler bin according to claim 4, it is characterised in that：On the central rotating shaft (5) Agitator arm (15) is fixed with positioned at the lower end of the extension (14).

A kind of 6. concrete mixing plant filler bin according to claim 5, it is characterised in that：The agitator arm (15) is indulged Section is triangle, and the base of the triangle is horizontally disposed with, the direction rotated along the central rotating shaft (5), the triangle Front bevel tilt backwards.

A kind of 7. concrete mixing plant filler bin according to claim 1, it is characterised in that：The feed opening (9) is at least Provided with two, and the feed opening (9) is evenly arranged with the central rotating shaft (5).

A kind of 8. concrete mixing plant filler bin according to claim 5, it is characterised in that：The agitator arm (15) is provided with It is multiple.