CN218360513U - Grit screening equipment - Google Patents

Abstract

The utility model relates to a grit screening equipment, including box and screen cloth, the screen cloth slope sets up inside the box, be provided with on the top of this screen cloth and be located feeder hopper on the box roof, its bottom is connected with and extends to the play flitch that the slope in the box outside was arranged set up in the feeder hopper and dial material mechanism, dial material mechanism and include that dial material roller and equipartition are on dialling the material roller and along a plurality of tablets of dialling that its length was arranged, dial the material roller and follow the width direction of screen cloth arranges, and its both ends all rotationally set up on the lateral wall of feeder hopper, every dial the terminal surface of tablet and be arcuation and incline direction unanimity in the projection direction. This technical scheme is dialled the material mechanism through the setting and is made the grit once get into the screen cloth a small amount, prevents that the grit that once got into the screen cloth from too much causing the grit on the screen cloth not to sieve just discharge the box easily, influence the screening effect.

Description

Grit screening equipment

Technical Field

The utility model relates to a machine-made sand processing equipment technical field, concretely relates to grit screening equipment.

Background

The production process of producing the machine-made sand by utilizing the rock tailings generally comprises pretreatment → crushing → sand making → screening → sand washing → finished products. Because the stones are different in size and contain stone powder, a screening device is needed to screen and remove impurities.

The utility model patent number 2020202594289 discloses a screening plant for sieving impurity in grit aggregate, this screening plant include box and vibrating motor, and the box is inside to be equipped with snakelike screen pipe, snakelike screen pipe one end extends the box top and fixes being equipped with first bellows, and first bellows top is fixed to be equipped with the feeder hopper. According to the screening device, the snakelike screen pipe is arranged to be snakelike, so that the movement path of the material in the snakelike screen pipe is effectively prolonged, and the screening effect is effectively improved. However, the sand and stone directly enter the snakelike screening net pipe through the feed hopper, and the sand and stone entering the screen at one time is too much, so that the sand and stone on the screen are easily discharged out of the box body without being screened, and the screening effect is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the defect that above-mentioned technical problem exists with not enough, provide one kind and can prevent that the grit from once getting into the too much grit screening equipment of screen cloth.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a grit screening equipment, includes box and screen cloth, the screen cloth slope sets up inside the box, be provided with on the top of this screen cloth and be located feeder hopper on the box roof, its bottom is connected with and extends to the play flitch that the slope in the box outside was arranged set up in the feeder hopper and dial material mechanism, dial material mechanism including dial material roller and equipartition and dial a plurality of tablets of dialling that the length arranged on dialling the material roller and following, dial the material roller and follow the width direction of screen cloth arranges, its both ends all rotationally set up on the lateral wall of feeder hopper, every dial the terminal surface of tablet and be arcuation and incline direction unanimity in the projection direction. This technical scheme is dialled the material mechanism through the setting and is made the grit once get into the screen cloth a small amount, prevents that the grit that once got into the screen cloth from too much causing the grit on the screen cloth not to sieve just discharge the box easily, influence the screening effect.

Preferably, the inner surface of the top plate of the box body is provided with a fixing plate extending downwards, the fixing plate divides the box body into a screening cavity and a collecting cavity, the top end of the screen is fixedly connected with the bottom end of the fixing plate, the bottom of the screen is connected with a material sliding plate on the side opposite to the material discharging plate, the material sliding plate is arranged in an inclined mode, and the bottom end of the material sliding plate extends into the collecting cavity so that materials passing through the screen holes can enter the collecting cavity along the material sliding plate. Set up and collect chamber and swift current flitch, the material of screen cloth below gets into along the swift current flitch and collects the chamber, temporary storage collects the chamber, prevents to pile up too much material because of the screen cloth below and leads to the screening effect not good.

Preferably, a discharge hole is formed in the side wall of the screening cavity, and the bottom end of the discharge plate extends out of the discharge hole; a vertical plate is arranged under the fixed plate, a feed inlet of the collecting cavity is formed between the vertical plate and the fixed plate, and the lower edge of the feed inlet is lower than the lower edge of the discharge outlet.

Preferably, a discharge port is arranged on the bottom plate of the collection cavity for discharging the materials in the collection cavity; or a material outlet is arranged on the side plate of the collecting cavity, the bottom plate of the collecting cavity is obliquely arranged, and the lower end of the upper surface of the bottom plate of the collecting cavity is flush with the lower edge of the material outlet. The material in the collecting cavity is convenient to discharge.

Preferably, the material poking mechanism further comprises a motor for driving the material poking roller to rotate, and the motor is located on the outer side of the box body and is in transmission connection with one end of the material poking roller. The material stirring roller is driven by the motor, so that the quantity of stones entering the screen is convenient to control.

The beneficial effects of the utility model are that:

1. the utility model discloses a set up in the feeder hopper and dial the material mechanism, make the building stones evenly enter the screen cloth, and dial the material roller of material mechanism and set up along the width of screen cloth, play the effect of cloth, make the building stones fully spread the screen cloth, improve the utilization of screen cloth, guarantee the screening effect;

2. the utility model discloses a set up the swift current flitch at the screen cloth dorsal part for the material that leaks the sieve mesh is kept in along the swift current flitch and is collecting the intracavity, prevents that the dorsal material of screen cloth from piling up too much, influences the screening effect.

Drawings

FIG. 1 is a schematic structural view of the inside of the box body of the sand and stone screening device of the present invention;

figure 2 is the utility model discloses sandstone screening equipment dial material mechanism's schematic structure.

In the figure: 1. a box body 101, a screening cavity 102 and a collecting cavity; 2. a screen mesh; 3. a feed hopper; 4. a discharge plate; 5. a material shifting mechanism 501, a material shifting roller 502 and a material shifting sheet; 6. a fixing plate; 7. material sliding; 8. a discharge port; 9. a vertical plate; 10. a feed inlet; 11. a dust suction hopper.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1: as shown in figure 1, a grit screening installation, including box 1 and screen cloth 2, the slope of screen cloth 2 sets up inside box 1, box 1 is by the bottom plate, the roof, and enclose to close at bottom plate and roof curb plate all around and constitute, be provided with the feeder hopper 3 that is located on 1 roof of box on the top of this screen cloth 1, feeder hopper 3 can be connected with grit crushing apparatus's discharge gate, the 3 upper end openings of this feeder hopper, its bottom mounting is on the roof of box 1, 3 inner chambers of feeder hopper and with 1 inner chamber intercommunication of box. The building stones are smashed the back and directly get into the utility model discloses a sieve in the grit screening installation, if the tails granule of the quarry of course if less need not smash, also can directly adopt this screening installation to sieve and remove soil. The bottom end of the screen 2 is connected with an obliquely arranged discharging plate 4 extending to the outer side of the box body 1, stone of the screen 2 is discharged out of the box body 1 along the discharging plate 4, and the cross section of the discharging plate 4 is U-shaped. The included angle between the screen 2 and the horizontal plane is 40 degrees, and the included angle between the discharging plate 4 and the horizontal plane is 25 degrees. It should be noted that: here screen top refers to the uppermost end of the screen 2 as shown in fig. 1 and screen bottom refers to the lowermost end of the screen 2.

Set up in the feeder hopper of this embodiment and dial material mechanism 5, dial material mechanism 5's structure as follows: as shown in fig. 2, the material stirring mechanism 5 includes a material stirring roller 501 and a plurality of material stirring sheets 502 uniformly distributed on the material stirring roller 501 and arranged along the length thereof, the material stirring roller 501 is arranged along the width direction of the screen 2, the material stirring rollers 501 are all rotatably mounted on the side wall of the feed hopper 3 through bearings, and the end surface of each material stirring sheet 502 is arc-shaped in the projection direction and has the same inclination direction. After the building stones got into feeder hopper 3, the building stones got into the screen cloth dispersedly under the effect of kickoff 5, can not once fall into the screen cloth too much to avoid once getting into the too much grit of screen cloth and causing the grit on the screen cloth not to sieve just discharge the box easily, the phenomenon that influences the screening effect appears. And dial the material roller 501 and arrange so design along the width direction of screen cloth 2 and can make the building stones fill along the width direction of screen cloth, make full use of screen cloth, effectively utilize the screen cloth, guarantee the screening effect. And the screen cloth 2 that adopts the slope to set up cooperates the kickoff mechanism that sets up in the feeder hopper 3, even do not adopt vibrating motor also can be to the abundant screening of material, can save equipment cost.

Example 2: this embodiment increases swift current flitch on embodiment 1's basis and obtains to in the material that falls into screen cloth 2 below is collected, prevents that the material from piling up in screen cloth 2 below, piles up the sieve mesh that can block up screen cloth 2 low side behind the high, and then influences the screening effect. Referring to fig. 1, a fixing plate 6 extending downwards is arranged on the inner surface of a top plate of a box body 1, the fixing plate 6 divides the box body into a screening cavity 101 and a collecting cavity 102, the top end of a screen 2 is fixedly connected with the bottom end of the fixing plate 6, a material sliding plate 7 is connected to one side, back to the discharging plate 4, of the bottom of the screen 2, the material sliding plate 7 is arranged in an inclined mode, the bottom end of the material sliding plate extends into the collecting cavity 102 so that materials passing through a screen hole can enter the collecting cavity 102 along the material sliding plate 7, and the material sliding plate 7 arranged in an inclined mode is designed to prevent materials below the screen 2 from being stacked and affecting the screening effect.

The side wall of the screening cavity 101 is provided with a discharge hole 8, the bottom end of the discharge plate 4 extends out of the discharge hole 8, a vertical plate 9 is arranged under the fixed plate 6, a feed inlet 10 of the collecting cavity 102 is formed between the vertical plate 9 and the fixed plate 6, and the lower edge of the feed inlet 10 is lower than the lower edge of the discharge hole 8.

A discharge opening (not shown) is formed in the bottom plate of the collection chamber 102 for discharging the material in the collection chamber; or a discharge outlet (not shown in the figure) is arranged on a side plate of the collection cavity 102, the bottom plate of the collection cavity 102 is obliquely arranged, and the lower end of the upper surface of the collection cavity is flush with the lower edge of the discharge outlet, so that the materials in the collection cavity can be discharged completely while the materials are discharged conveniently. The grit screening equipment of this embodiment does not vibrating motor and other electrical equipment just can accomplish the screening edulcoration of grit to screening effect is good, does not need the energy consumption, reduces use cost.

Example 3: not shown in the figure, the present embodiment is added with a motor capable of driving the stirring roller 501 to rotate on the basis of embodiment 1, so that the amount of stone entering the screen 2 can be conveniently controlled, and the other structure is the same as that of embodiment 1. A motor is arranged at one end of the material stirring roller 501, so that stone materials in the feed hopper 3 stirred by the material stirring sheet 502 fall into the screen 2 for screening, the stone materials above the screen 2 are discharged along the discharge plate 4, and materials falling below the screen 2 enter the collection cavity 102 along the material sliding plate 7 and are temporarily stored in the collection cavity 102. The output shaft of motor is connected with the one end transmission of dialling material roller 501, if through the coupling joint, or gear drive is connected, or belt drive is connected, dials the lateral wall that feeder hopper 3 is stretched out to the one end of material roller 501 and motor output shaft to be connected with the motor drive that is located the feeder hopper 3 outside.

Example 4: as shown in fig. 1, in order to reduce the generation of dust during screening, a dust collecting hopper 11 having a horn shape is mounted on a side plate of a collecting chamber 102 of a box 1, a large end of the dust collecting hopper 11 faces a screen 2, a small end thereof is connected to one end of a dust collecting pipe (not shown) located outside the box 1, and the other end of the dust collecting pipe is connected to a bag-type dust collector.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The utility model provides a grit screening equipment, includes box and screen cloth, the screen cloth slope sets up inside the box, be provided with on the top of this screen cloth and be located feeder hopper on the box roof, its bottom is connected with and extends to the play flitch that the slope in the box outside was arranged, its characterized in that set up in the feeder hopper and dial material mechanism, dial material mechanism including dial material roller and equipartition and dial a plurality of tablets of dialling that arrange on dialling the material roller and along its length, dial the material roller and follow the width direction of screen cloth arranges, and its both ends all rotationally set up on the lateral wall of feeder hopper, every dial the terminal surface of tablet and be arcuation and incline direction unanimity in the projection direction.

2. A sand screening apparatus as claimed in claim 1, wherein a downwardly extending fixed plate is provided on the inner surface of the top plate of the housing, the fixed plate dividing the housing into a screening chamber and a collection chamber, the top end of the screen being fixedly connected to the bottom end of the fixed plate, the bottom of the screen being connected to a chute plate on the opposite side of the discharge plate, the chute plate being inclined so that the bottom end of the chute plate extends into the collection chamber so that material passing through the screen aperture passes along the chute plate into the collection chamber.

3. The sand and stone screening device according to claim 2, wherein a discharge hole is formed in the side wall of the screening cavity, and the bottom end of the discharge plate extends out of the discharge hole; a vertical plate is arranged under the fixed plate, a feed inlet of the collecting cavity is formed between the vertical plate and the fixed plate, and the lower edge of the feed inlet is lower than the lower edge of the discharge outlet.

4. A sand screening apparatus as claimed in claim 3, wherein a discharge outlet is provided in the floor of the collection chamber for discharge of material from the collection chamber; or a material outlet is arranged on the side plate of the collecting cavity, the bottom plate of the collecting cavity is obliquely arranged, and the lower end of the upper surface of the bottom plate of the collecting cavity is flush with the lower edge of the material outlet.

5. The sand and stone screening device according to claim 1, wherein the material poking mechanism further comprises a motor for driving the material poking roller to rotate, and the motor is positioned outside the box body and is in transmission connection with one end of the material poking roller.

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