CN220177549U - Multistage screening plant is used in boron carbide production - Google Patents

Abstract

The utility model relates to the technical field of multi-stage screening of boron carbide, and discloses a multi-stage screening device for producing boron carbide, which comprises a screening box, wherein a feed hopper is fixedly arranged at the top of the screening box, a discharge hopper is fixedly arranged at the bottom of the screening box, two arc-shaped grooves which correspond up and down are respectively formed in the left side wall surface and the right side wall surface of the interior of the screening box, screening plates are respectively arranged between the two arc-shaped grooves which correspond to each level, and the left end and the right end of each screening plate are of arc-shaped structures.

Description

Multistage screening plant is used in boron carbide production

Technical Field

The utility model relates to the technical field of multistage screening of boron carbide, in particular to a multistage screening device for boron carbide production.

Background

The boron carbide is black crystal with metallic luster, commonly called black diamond, is a powdery product which is prepared by taking boric acid as a main raw material, adding carbonaceous materials such as petroleum coke and the like, and carrying out high-temperature solid smelting and crushing processing, and belongs to superhard materials together with diamond and cubic boron nitride.

In the boron carbide production process, screening is an indispensable process, the purpose is to separate the boron carbide of different particle diameters according to particle diameter size to satisfy different user demands, but current multistage screening plant is used in boron carbide production is poor in screening effect, because current sieve is in order to be convenient for the ejection of compact to set up to incline the state generally, boron carbide on sieve surface can roll down to the low department fast during screening, can some particle diameters be less in time can't pass the sieve mesh in time and be screened out, for this reason, we propose a multistage screening plant is used in boron carbide production.

Disclosure of Invention

The utility model mainly solves the technical problems in the prior art and provides a multistage screening device for producing boron carbide.

In order to achieve the above purpose, the technical scheme is adopted by the utility model, the multistage screening device for boron carbide production comprises a screening box, a feeding funnel is fixedly arranged at the top of the screening box, a discharging funnel is fixedly arranged at the bottom of the screening box, two arc-shaped grooves which correspond up and down are respectively formed in the left side wall surface and the right side wall surface of the screening box, a screening plate is arranged between the two arc-shaped grooves which correspond to each level, the left end and the right end of the screening plate are of arc-shaped structures, the left end and the right end of the screening plate are respectively closely attached to the arc surfaces of the adjacent arc-shaped grooves, two servo motors are fixedly arranged on the rear wall surface of the screening box, the output end of each servo motor extends to the inside of the screening box, the output ends of the two servo motors are fixedly connected with the rear wall surfaces of the two screening plates, and the lowest part of one side, which is close to each other, of the two arc-shaped grooves which correspond to each level, is provided with a discharging hole.

Preferably, the inside of every discharge gate all is provided with the sealing block with the inside cavity regional looks adaptation of discharge gate, and the top that the left and right sides outer wall surface of screening case corresponds every discharge gate all fixed mounting has the connecting rod, and the connecting rod is "L" shape structure, and the vertical end of every connecting rod is close to the equal fixed mounting of one side of screening case and has flexible cylinder, the output of every flexible cylinder all with adjacent sealing block fixed connection.

Preferably, drainage plates are fixedly arranged at the positions of the outer wall surfaces of the left side and the right side of the screening box, corresponding to the two discharge holes positioned above.

Preferably, the two drainage plates are arranged in an splayed shape.

Preferably, a blocking plate is fixedly arranged at the front edge and the rear edge of the top of each drainage plate.

Advantageous effects

The utility model provides a multistage screening device for boron carbide production. The beneficial effects are as follows:

(1) This multistage screening plant is used in boron carbide production, firstly throw into the screening incasement portion with the boron carbide powder through the feed hopper, then start two servo motor, every servo motor's output all drives and corresponds screening board and carry out reciprocating rotation according to predetermineeing the angle, simultaneously throw into the inside boron carbide powder of screening incasement and constantly turn over in the surface of top screening board, the less boron carbide powder of particle diameter will fall to the surface of below screening board, the greater boron carbide powder of particle diameter will stay the surface of top screening board constantly turn over, the boron carbide powder that is located the surface of top screening board will be abundant under constantly turning over, the boron carbide that falls to the below screening board surface at this moment is also sieving, after the boron carbide screening is accomplished, increase two servo motor's output rotation angle again, make every boron carbide on screening board surface all accomplish the ejection of compact from corresponding two discharge gates, the minimum boron carbide of particle diameter will follow the discharge hopper after the screening.

(2) This multistage screening plant is used in boron carbide production, when carrying out the screening, every sealing block will be located the inside that corresponds the discharge gate, and when ending the screening, every telescopic cylinder all drives and corresponds sealing block and break away from corresponding the inside of discharge gate, and the drainage plate main effect is to the boron carbide powder of ejection of compact drainage, and the barrier plate can prevent to spill at the boron carbide powder of drainage plate surface.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those skilled in the art from this disclosure that the drawings described below are merely exemplary and that other embodiments may be derived from the drawings provided without undue effort.

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the ambit of the technical disclosure.

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

FIG. 2 is an enlarged view of the utility model at A in FIG. 1;

FIG. 3 is a schematic back view of the present utility model.

Legend description:

1. a screening box; 2. a feed hopper; 3. a discharge hopper; 4. an arc-shaped groove; 5. a screening plate; 6. a servo motor; 7. a discharge port; 8. a sealing block; 9. a connecting rod; 10. a telescopic cylinder; 11. a drainage plate; 12. and a blocking plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: 1-3, including screening case 1, screening case 1 is inside hollow rectangle box, screening case 1's top fixed mounting has the feed hopper 2 that is linked together with screening case 1 inside, screening case 1's bottom fixed mounting has the ejection of compact funnel 3 that is linked together with screening case 1 inside, screening case 1's inside left and right sides wall all has seted up two arc grooves 4 that correspond from top to bottom, all be provided with screening plate 5 between two arc grooves 4 that correspond every level, screening plate 5's left and right sides both ends are cambered surface structure, screening plate 5's left and right sides both ends closely paste with the cambered surface of adjacent arc groove 4 respectively, screening case 1's back wall fixed mounting has two servo motor 6, every servo motor 6's output extends to screening case 1's inside, the output ends of the two servo motors 6 are fixedly connected with the rear wall surfaces of the two screening plates 5 respectively, the lowest part of one side, close to each other, of each two arc-shaped grooves 4 corresponding to each level is provided with a discharge hole 7, the inside of each discharge hole 7 is provided with a sealing block 8 matched with the hollow area inside the discharge hole 7, the upper part of each discharge hole 7 corresponding to the outer wall surfaces of the left side and the right side of the screening box 1 is fixedly provided with a connecting rod 9, the connecting rod 9 is of an L-shaped structure, one side, close to the screening box 1, of the vertical end of each connecting rod 9 is fixedly provided with a telescopic cylinder 10, the output end of each telescopic cylinder 10 is fixedly connected with the adjacent sealing block 8, the positions, corresponding to the two positions, positioned above the discharge holes 7, of the outer wall surfaces of the left side and the right side of the screening box 1 are fixedly provided with drainage plates 11, the two drainage plates 11 are arranged in an eight shape, a blocking plate 12 is fixedly arranged at the front edge and the rear edge of the top of each drainage plate 11.

The working principle of the utility model is as follows:

further, firstly, the boron carbide powder is put into the screening box 1 through the feeding funnel 2, then two servo motors 6 are started, the output end of each servo motor 6 drives the corresponding screening plate 5 to rotate reciprocally according to a preset angle, meanwhile, the boron carbide powder put into the screening box 1 is continuously turned over on the surface of the upper Fang Shaifen plate 5, the boron carbide powder with smaller particle size is dropped onto the surface of the lower screening plate 5, the boron carbide powder with larger particle size is stopped on the surface of the upper Fang Shaifen plate 5 and is continuously turned over, the boron carbide powder on the surface of the upper screening plate 5 is sufficiently screened under the continuous turning over, at the moment, the boron carbide falling onto the surface of the lower screening plate 5 is screened, after the boron carbide screening is finished, the output end rotation angle of the two servo motors 6 is increased, the boron carbide on the surface of each screening plate 5 is discharged from the corresponding two discharge holes 7, and the boron carbide with the smallest particle size is discharged from the discharging funnel 3 after the screening.

Further, when screening, every sealing block 8 will be located the inside that corresponds discharge gate 7, and when finishing the screening, every telescopic cylinder 10 all drives corresponding sealing block 8 and breaks away from corresponding discharge gate 7 inside, and the main effect of drainage plate 11 is to the boron carbide powder of ejection of compact drainage, and baffle 12 can prevent to spill at the boron carbide powder of drainage plate 11 surface.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (5)

1. The utility model provides a multistage screening plant is used in boron carbide production, includes screening case (1), and the top fixed mounting of screening case (1) has feed hopper (2), and the bottom fixed mounting of screening case (1) has ejection of compact funnel (3), its characterized in that: two arc grooves (4) that correspond from top to bottom are all offered to inside left and right sides wall surface of screening case (1), all be provided with screening board (5) between two arc grooves (4) that every level corresponds, both ends are cambered surface structure about screening board (5), both ends are closely pasted with the cambered surface of adjacent arc groove (4) respectively about screening board (5), the back wall fixed mounting of screening case (1) has two servo motor (6), the output of every servo motor (6) extends to the inside of screening case (1), the output of two servo motor (6) links to each other with the back wall fixed of two screening boards (5) respectively, discharge gate (7) have all been seted up to the one side minimum that two arc grooves (4) that every level corresponds are close to each other.

2. The multi-stage screening device for producing boron carbide according to claim 1, wherein: the inside of every discharge gate (7) all is provided with sealing block (8) with the inside cavity regional looks adaptation of discharge gate (7), the top that the left and right sides outer wall surface of screening case (1) corresponds every discharge gate (7) is all fixed mounting have connecting rod (9), connecting rod (9) are "L" shape structure, the vertical end of every connecting rod (9) is close to one side of screening case (1) and all fixed mounting has flexible cylinder (10), the output of every flexible cylinder (10) all with adjacent sealing block (8) fixed connection.

3. The multi-stage screening device for producing boron carbide according to claim 1, wherein: the drainage plates (11) are fixedly arranged at the positions of the outer wall surfaces of the left side and the right side of the screening box (1) corresponding to the two discharge holes (7) positioned above.

4. The multi-stage screening device for producing boron carbide according to claim 1, wherein: the two drainage plates (11) are arranged in a splayed shape.

5. The multi-stage screening device for producing boron carbide according to claim 1, wherein: a blocking plate (12) is fixedly arranged at the front edge and the rear edge of the top of each drainage plate (11).