CN220617232U - Feeding device for powdery emulsion explosive additive - Google Patents

Abstract

The utility model discloses a feeding device for powdery emulsion explosive additives, wherein the discharge ports of a plurality of bins are communicated with the feed ports of a screw conveyor, the screw conveyor comprises a motor, a cylinder body, an auger, a rotary table and gears, a plurality of cavities are coaxially arranged in the cylinder body, the auger Long An is arranged in the cavities, the rotary table is rotatably arranged at the open end of the cavities, the inner surface of the rotary table is connected with one end of the auger, a plurality of gears are arranged at the output end of the motor, and the gears are meshed with the outer gear of the rotary table. The barrel of the screw conveyor in the feeding device is provided with a plurality of cavities, one screw conveyor meets the conveying work of a plurality of additives, once the screw conveyor fails, the conveying of all the additives is stopped simultaneously, after the screw conveyor returns to normal, finished medicine powder which is not mixed with the additives can pass through the fluidized bed again, part of the medicine powder is not mixed with the additives, the problem of production accidents is caused, and safe and efficient production is ensured.

Description

Feeding device for powdery emulsion explosive additive

Technical Field

The utility model relates to the technical field of powdery emulsion explosive, in particular to a feeding device for powdery emulsion explosive additives.

Background

The powdery emulsion explosive is a novel industrial explosive with excellent performance which is developed on the basis of the colloid emulsion explosive. According to the existing process formula, additives (wood flour and talcum powder) are generally added into the powdery emulsion explosive, namely: the wood powder and the talcum powder are uniformly mixed according to the proportion of 2:5 and then added into the powder of the finished powdery emulsion explosive according to the corresponding proportion, so that the stability of the powder in the transportation and storage processes is ensured, meanwhile, the loading of blast holes in a blasting site is facilitated, and the loading rate is improved.

In the past production, wood flour and talcum powder in a bin are respectively conveyed to a fluidized bed by respective screw conveyors and then are mixed with finished product powder after being uniformly mixed, but the conveying mode has certain defects: because each additive is conveyed by various screw conveyors, once one screw conveyor fails, at least one additive can not reach a fluidized bed, but other additives can be mixed with the finished medicine powder, so that the part of the finished medicine powder is mixed with missing additive components again after being weighed, and the time and the labor are wasted; or directly scrapped, resulting in waste.

Disclosure of Invention

The utility model aims to provide a feeding device for powdery emulsion explosive additives, which solves the problem that the missing additives are mixed again after the explosive is required to be re-weighed or the explosive is directly scrapped to form waste due to the failure of a certain screw conveyor for conveying the additives.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a feeding device for powder emulsion explosive additive, includes fluidized bed and a plurality of storage powder emulsion explosive is with feed bin of additive, a plurality of the discharge gate of feed bin with one screw conveyer's feed inlet intercommunication, screw conveyer's discharge gate with the fluidized bed intercommunication, screw conveyer includes motor, barrel, auger, carousel and gear, have a plurality of coaxial cavitys that are provided with in the barrel, the auger is installed in the cavity, the carousel is rotated and is installed at the open end of cavity, just the internal surface of carousel with the one end of auger is connected, and a plurality of diameters are different the gear is installed on the output of motor, just the gear with the outer ring gear meshing of carousel.

The further technical scheme is as follows: one end of the cylinder body, which is close to the rotary table, is provided with a plurality of feeding pipes which are communicated with the cavity in a single mode.

The further technical scheme is as follows: one end of the cylinder body, which is far away from the rotary table, is provided with a plurality of discharging pipes which are communicated with the cavity in a single mode.

The further technical scheme is as follows: the bin is above the screw conveyor, which is above the fluidized bed.

The further technical scheme is as follows: and the discharge end of the screw conveyor is communicated with the fluidized bed through a mixer.

The further technical scheme is as follows: the mixer comprises a conveying pipe and a plurality of dispersing discs, wherein the dispersing discs are arranged in the conveying pipe from top to bottom.

The further technical scheme is as follows: the dispersion plate is a conical sieve plate with the tip part upwards.

Compared with the prior art, the utility model has at least one of the following beneficial effects:

the utility model provides a feeding device for powdery emulsion explosive additives, wherein a cylinder body of a screw conveyor is provided with a plurality of cavities, so that the screw conveyor can meet the conveying work of a plurality of additives, once the screw conveyor fails, the conveying of all additives is stopped at the same time, after the screw conveyor returns to normal, the finished powder without the additives can be passed through a fluidized bed again, part of the additives cannot be mixed into the powder, and part of the additives cannot be mixed into the powder, so that the problem of production accidents is caused, and safe and efficient production is ensured.

Drawings

FIG. 1 is a schematic diagram of a feeding device for a powdery emulsion explosive additive.

Fig. 2 is a schematic view of the structure of the screw conveyor of fig. 1 according to the present utility model.

Fig. 3 is a schematic view of the structure of the mixer of fig. 1 according to the present utility model.

Reference numerals: 1. a fluidized bed; 2. a storage bin; 3. a screw conveyor; 4. a motor; 5. a cylinder; 6. an auger; 7. a turntable; 8. a gear; 9. a feed pipe; 10. a mixer; 11. a material conveying pipe; 12. a dispersion plate; 13. a cavity; 14. and a discharging pipe.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Embodiment one:

this embodiment is shown in fig. 1 and 2, including fluidized bed 1 and a plurality of feed bin 2 of storing powder emulsion explosive additive, the discharge gate of a plurality of feed bins 2 communicates with the feed inlet of a screw conveyer 3, the discharge gate of screw conveyer 3 communicates with fluidized bed 1, screw conveyer 3 includes motor 4, barrel 5, auger 6, carousel 7 and gear 8, a plurality of coaxial cavitys 13 that are provided with have in barrel 5, auger 6 installs in cavity 13, carousel 7 rotates the open end of installing at cavity 13, and the internal surface of carousel 7 is connected with one end of auger 6, a plurality of different diameter gears 8 are installed on the output of motor 4, and gear 8 meshes with the outer ring gear of carousel 7. One end of the cylinder 5, which is close to the turntable 7, is provided with a plurality of feed pipes 9 which are in single communication with the cavity 13. One end of the cylinder 5, which is far away from the turntable 7, is provided with a plurality of discharge pipes 14 which are in single communication with the cavity 13. The silo 2 is above the screw conveyor 3, and the screw conveyor 3 is above the fluidized bed 1.

The working process of the utility model is as follows: various additives for powder emulsion explosive, such as wood flour and talcum powder, are respectively filled into the storage bins 2, under the action of dead weight, the additives enter the screw conveyor 3, the motor 4 drives the gear 8 to rotate, the gear 8 is meshed with the external teeth of the rotary table 7, the rotary table 7 is further driven to rotate together, the rotary table 7 can rotate with the packing auger 6 in each cavity 13 in the cylinder 5, the additives entering the cavities 13 are conveyed towards the direction of the discharge pipe 14 until reaching the fluidized bed 1, and one screw conveyor 3 can simultaneously convey various additives.

The screw conveyer in this feeding device has a plurality of cavitys 13, can realize that a screw conveyer satisfies the transport work of multiple additive, in case screw conveyer breaks down, the transport of all additives stops simultaneously, after screw conveyer resumes normally, can pass the fluidized bed again with the finished product powder that does not mix into the additive, can not cause some additive to mix into the powder, some does not mix into the powder, leads to the problem that produces the accident, guarantees safe high-efficient production.

The packing auger 6 positioned in the cavity 13 at the innermost layer of the cylinder 5 is a shaft-equipped or totally-enclosed packing auger, and the packing auger 6 positioned in the cavity 13 outside the innermost layer of the cylinder 5 is a shaftless packing auger.

Embodiment two:

on the basis of the above embodiment, in this embodiment, as shown in fig. 3, the discharge end of the screw conveyor 3 communicates with the fluidized bed 1 through the mixer 10. The mixer 10 comprises a feed conveyor pipe 11 and a plurality of dispersion plates 12, and the dispersion plates 12 are arranged in the feed conveyor pipe 11 from top to bottom. The dispersion disk 12 is a conical screen plate with the tip portion facing upward.

Because each additive is delivered by a split channel, it is mixed by the mixer 10 and then better mixed with the powdered emulsion explosive, and each additive falls onto the dispersion plate 12 of the mixer 10 and is dispersed and mixed by the dispersion plate 12.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (7)

1. The utility model provides a feeding device for powder emulsion explosive additive, includes fluidized bed (1) and a plurality of feed bin (2) of storing powder emulsion explosive additive, its characterized in that: a plurality of discharge gate and the feed inlet intercommunication of screw conveyer (3) of feed bin (2), the discharge gate of screw conveyer (3) with fluidized bed (1) intercommunication, screw conveyer (3) include motor (4), barrel (5), auger (6), carousel (7) and gear (8), have a plurality of coaxial cavitys (13) that are provided with in barrel (5), auger (6) are installed in cavity (13), carousel (7) rotate and install the uncovered end in cavity (13), just the internal surface of carousel (7) with one end of auger (6) is connected, a plurality of diameters are different gear (8) are installed on the output of motor (4), just gear (8) with the external tooth meshing of carousel (7).

2. The feeding device for a powdery emulsion explosive additive according to claim 1, wherein: one end of the cylinder body (5) close to the rotary table (7) is provided with a plurality of feeding pipes (9) which are communicated with the cavity (13) singly.

3. A feeder device for a powdered emulsion explosive additive according to claim 2, wherein: one end of the cylinder body (5) far away from the rotary table (7) is provided with a plurality of discharging pipes (14) which are communicated with the cavity (13) singly.

4. The feeding device for a powdery emulsion explosive additive according to claim 1, wherein: the bin (2) is above the screw conveyor (3), and the screw conveyor (3) is above the fluidized bed (1).

5. The feeding device for a powdery emulsion explosive additive according to claim 1, wherein: the discharge end of the screw conveyor (3) is communicated with the fluidized bed (1) through a mixer (10).

6. The feeding device for a powdery emulsion explosive additive according to claim 5, wherein: the mixer (10) comprises a conveying pipe (11) and a plurality of dispersing discs (12), wherein the dispersing discs (12) are arranged in the conveying pipe (11) from top to bottom.

7. The feeding device for a powdery emulsion explosive additive according to claim 6, wherein: the dispersion plate (12) is a conical screen plate with an upward tip.