CN210847139U - A screening machine for rapid discharge in goaf filling operations - Google Patents

Abstract

The utility model belongs to material screening field device, concretely relates to screening machine that is arranged in collecting space area filling operation quick ejection of compact, be equipped with a plurality of layers of sieve mesh screen cloth that diminishes in proper order in the screening case, the downside that corresponds every layer of sieve screen place horizontal position on the screening case all is equipped with the discharge gate, the both ends of discharge gate have set firmly the draw-in groove, screen cloth one end can be dismantled with the screening case and articulate, the other end and screening case swing joint, and the swing joint lower part of screen cloth has a little elastic play flitch, the other end and the draw-in groove spacing connection of play flitch, this screening machine area is little, can realize continuous production.

Description

A screening machine for rapid discharge in goaf filling operations

technical field

The utility model belongs to a device in the field of material screening, in particular to a screening machine used for rapid material discharge in a goaf filling operation.

Background technique

In recent years, due to the acceleration of urbanization and industrialization, many houses, roads and bridges and urban infrastructure need to be demolished and rebuilt, resulting in a large amount of waste concrete, which will cause new pollution if not disposed of properly. At present, many experts at home and abroad have recycled waste concrete to generate recycled concrete. These recycled concrete are mostly used in engineering structures, so the requirements for mechanical properties are high, which makes the utilization rate of waste concrete low. The ground filling of the goaf is mainly to fill the cavity after mining, and the mechanical properties of the filling are relatively low, and the goaf of different scales is filled with waste materials of different particle sizes. The waste concrete is fully utilized from ultrafine powder, fine aggregate to coarse aggregate. In the process of concrete particle size screening, a screening machine is required. The screening machines in the prior art are mainly single-stage screening, or a series of screening machines are used to connect multiple screening machines, and use the principle of vibration screening to screen the granular materials. For screening, the material is put into a screening machine, and through the high-speed vibration of the equipment, the material is screened according to the particle size or enters the second screening machine for secondary screening, or according to production needs, continuous three-stage and four-stage screening Sieve. Each additional screening process requires an additional screening machine, and each screening machine is equipped with a motor, which has high energy consumption, and the screening machine occupies a large area, which is not conducive to production operations. And in the screening process, when the materials that do not pass the screen are discharged, the whole screening box is usually discharged by dumping, which is difficult for manual operation and slow in discharging. Not conducive to mechanized production.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies of the existing technology, the utility model provides a screening machine for rapid discharge in the filling operation of the goaf, which occupies a small area and can realize continuous production.

The technical scheme adopted by the utility model to solve its technical problems is:

A screening machine used for quick discharge in goaf filling operation, comprising a screening box, the lower end of the screening box is connected to a bottom barrel, a shock-absorbing spring is arranged at the connection, and the bottom barrel is provided with sequentially connected The upper heavy hammer, the motor and the lower heavy hammer of the screening box, the upper part of the screening box is provided with a feeding port, and the feeding port is provided with a dust cover; Screen mesh, the screen box is provided with a discharge port on the lower side corresponding to the horizontal position of each layer of screen mesh, and the two ends of the discharge port are fixed with clamping grooves, and the screen mesh corresponds to the discharge port. The opposite end of the screen is detachably hinged with the screening box, the end corresponding to the discharge port is rotatably connected with the screening box, and a slightly elastic discharge material that is consistent with the width of the screen is hinged at the end of the screen corresponding to the discharge port. plate, and the other end of the discharge plate is connected to the limit position of the card slot.

Further, the bottom layer of the screening box is a collecting plate, the lower side of the screening box corresponding to the horizontal position of the collecting plate is provided with a discharge port, and the two ends of the discharge port are fixed with clamping grooves , the opposite end of the collecting plate corresponding to the discharge port is detachably hinged with the screening box, the end corresponding to the discharge port is rotatably connected with the screening box, and the end of the collecting plate corresponding to the discharge port is hinged with a A discharge plate that is slightly elastic and has the same width as the collecting plate, and the other end of the discharge plate is connected with the clamping slot to limit the position.

Further, the opposite ends of the discharge ports corresponding to the screen mesh and the collecting plate are respectively hinged to the wall of the screening box through an annular cylinder, and the annular cylinder is welded and inlaid on the wall of the screening box, and the center of the column is The walls of the case are on the same plane, and the screen is hinged to the annular cylinder through snaps.

Further, the discharging plate is formed by embedding an iron plate and a rubber plate, and the position of the rubber plate is set close to the card slot.

Further, the card slot includes a card slot shell, the card slot shell is a hollow cuboid, the two side walls of the card slot shell are provided with symmetrical rectangular holes, and the card slot shell is provided with a hollow cuboid inner wall tangent to three sides. The ball is provided with a connecting piece, and the two ends of the connecting piece pass through the rectangular hole and are hinged with the discharge plate.

Further, the discharge port end of the screening box is hinged with the discharge plate through a hinge.

Further, the sieve is a double-layered parent-child net, and several groups of bouncing balls are arranged between the child-parent nets, and the bouncing balls are limited by a ball blocking ring.

The beneficial effects of the present utility model are:

By arranging several layers of screen meshes in the screening box with smaller holes in turn, the lower side of each layer of screen mesh is provided with a discharge port, and the screen mesh on the side of the discharge port can be slid down to the discharge port, so that the The large-particle materials screened out quickly exit the screening box, and the screen and the inner wall of the screening box can be detachably hinged, and different levels of screens can be set according to production needs to meet production needs.

Description of drawings

The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

In the picture 1. Screening box, 2. Bottom bucket, 3. Shock spring, 41. Upper weight, 42. Lower weight, 43. Motor, 5. Feed inlet, 6. Dust cover, 7. Screen Net, 71. Bounce ball, 72. Ball blocking ring, 8. Outlet, 9. Slot, 91. Slot shell, 92. Rectangular hole, 93. Ball, 94. Connecting piece, 10. Ring cylinder, 101 . Buckle, 11. Bolt, 12. Wheel, 121. Rope, 13. Discharge plate, 131. Iron plate, 132. Rubber plate, 14. Aggregate plate, 15. Hinge.

Fig. 1 is the overall structure schematic diagram of the utility model a kind of screening machine used for quick discharge in goaf filling operation;

Figure 2 is a schematic diagram of the connection between the screen mesh or the collecting plate and the card slot of a screening machine used for rapid discharge in the goaf filling operation of the utility model;

3 is a schematic diagram of the connection between the screen mesh or the collecting plate and the discharging plate of a screening machine used for rapid discharge in the goaf filling operation of the utility model;

4 is a schematic diagram of the connection between the screen mesh or the collecting plate and the annular cylinder of a screening machine used for rapid discharge in the goaf filling operation of the utility model;

5 is a schematic structural diagram of the screen or the collecting plate of a screening machine used for rapid discharge in the goaf filling operation of the utility model before discharging;

FIG. 6 is a schematic structural diagram of a screen or collecting plate of a screening machine used for rapid discharge in the goaf filling operation of the utility model after discharging.

Detailed ways

As shown in Figures 1-6, a screening machine for rapid discharge in goaf filling operation includes a screening box 1 in an embodiment, the screening box 1 is in the shape of a cuboid, and the screening box 1 The lower end of the screen is connected to the bottom barrel 2, the connection is provided with a shock-absorbing spring 3, the bottom barrel 2 is provided with an upper weight 41, a motor 43, and a lower weight 42 connected in sequence, and the upper part of the screening box 1 is provided with The feeding port 5 is provided with a dust cover 6 under the feeding port 5, and the screening box 1 is sequentially provided with several layers of screen meshes 7 which gradually decrease in size. Several groups of bouncing balls 71 are arranged between the child and mother nets, and the bouncing balls 71 are limited by the ball blocking ring 72 . A discharge port 8 is provided on the lower side of the screen box 1 corresponding to the horizontal position of each layer of screen mesh 7.

As shown in FIG. 4 , the screen 7 is detachably hinged with the screening box 1 at the opposite end of the discharge port 8 . Specifically, the end of the screen 7 corresponding to the opposite side of the discharge port 8 is connected to the screen 7 through an annular cylinder 10 . It is hinged with the screening machine, the annular cylinder 10 is welded and embedded on the wall of the screening box 1, and the center of the column and the wall of the box are on the same plane, and the screen 7 is hinged with the annular cylinder 10 through the buckle 101. The bolt 11-type buckle 101 can also use an iron wire to pass through the annular cylinder 10, and the two ends of the iron wire are connected to the screen 7, so that the screen 7 can rotate along the side of the annular column with the column center as the base point.

As shown in Figures 5-6, the discharge port 8 of the screen 7 is movably connected to the screening box 1. Specifically, the discharge port 8 of the screen 7 is on the wall of the screen box 1 and the screen 7. Several positioning holes are opened at the same level, and the detachable bolts 11 penetrate the positioning holes to support the screen 7. When discharging, pull out the bolts 11 to make the discharge port 8 of the screen 7 slide down quickly to the outlet. The material port 8 realizes discharging. The upper part of the screening box 1 is provided with a reel 12. The rope 121 on the reel 12 is fixedly connected to the screen 7 at the end of the discharge port 8. After the material is discharged, the reel 12 is used to pull up the screen 7. to the position of the corresponding positioning hole, and insert the bolt 11 to fix it, and continue the screening work.

In another embodiment, the reel wheel 12 can be replaced with a small hoist, which plays the role of shrinking the screen 7 .

As shown in Figures 2, 5-6, the two ends of the discharge port 8 are fixed with card slots 9. The card slots 9 include a card slot shell 91, and the card slot shell 91 is a hollow cuboid. Symmetrical rectangular holes 92 are formed on the two side walls of the groove shell 91. The groove shell 91 is provided with a ball 93 tangent to three sides of the inner wall of the hollow cuboid. A connecting piece 94 is passed through the ball 93. Both ends of 94 are hinged to the discharge plate 13 through the rectangular hole 92, so that the balls 93 can roll up and down in the slot 9 with the discharge plate 13; At the bottom end of the slot 9, when the screen 7 is lifted to the horizontal plane, the discharge plate 13 drives the iron ball to slide to the top of the slot 9. The height of the hollow cuboid of the slot shell 91 should be greater than the displacement of the bottom edge of the discharge plate 13 before and after discharging. . The length of the discharge plate 13 and the screen mesh 7 connected by the hinge 15 is just so that the bottom edge of the screen mesh 7 is connected to the bottom edge of the discharge port 8 when the screen mesh 7 is inclined and discharged.

As shown in Figure 1 or Figure 3, a slightly elastic discharge plate 13 is hinged on the screen 7 at the end of the discharge port 8 through the hinge 15, and a rope 121 is connected to the hinge 15 shaft leading to the chassis The reel 12 on the top, the other end of the discharge plate 13 is connected to the slot 9 so that the discharge plate 13 can slide up and down; the discharge plate 13 is formed by the iron plate 131 and the rubber plate 132. It is located near the discharge port 8, so that the discharge plate 13 has a certain deformation ability, which is convenient for driving the iron ball to slide up and down, and avoids being stuck when the iron plate 131 and the card slot 9 are both rigid materials. The phenomenon.

The bottom layer of the screening box 1 is a collecting plate 14 , and the setting method of the collecting plate 14 is the same as that of the screen 7 .

In the specific implementation, according to the production needs, different levels of screens 7 and collecting plates 14 are installed in the screening box 1, the materials enter the screening machine from the feeding port 5, and the materials are screened layer by layer under the action of mechanical vibration, and the minimum The material with particle size falls on the collecting plate 14, and the screened material is released by pulling out the screen 7 or the bolt 11 on the collecting plate 14 side, and enters the next process.

It can be known from the technical common sense that the present invention can be realized by other embodiments without departing from its spirit or essential characteristics. The above-disclosed embodiments are, in all respects, illustrative and not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims (7)

1. A screening machine for rapid discharge in goaf filling operations, comprising a screening box, the lower end of the screening box is connected to a bottom barrel, a shock-absorbing spring is provided at the connection, and a bottom barrel is provided with a The upper heavy hammer, the motor and the lower heavy hammer are connected in sequence. The upper part of the screening box is provided with a feeding port, and the feeding port is provided with a dust cover. It is characterized in that several layers are arranged in the screening box in sequence. Screen meshes with decreasing screen holes in turn. The screen box is provided with a discharge port on the lower side corresponding to the horizontal position of each layer of screen mesh, and the two ends of the discharge port are fixed with clamping grooves. The opposite end of the screen corresponding to the discharge port is detachably hinged to the screening box, the end corresponding to the discharge port is rotatably connected to the screening box, and a micro-elasticity is hinged at the end of the screen corresponding to the discharge port and is connected to the screen. A discharge plate with the same width of the net, and the other end of the discharge plate is connected with the card slot to limit the position. 2. The screening machine for quick discharge in goaf filling operation according to claim 1, wherein the bottom layer of the screening box is a collecting plate, and the corresponding The lower side of the horizontal position of the collecting plate is provided with a discharge port, the two ends of the discharge port are fixed with clamping grooves, and the opposite end of the collecting plate corresponding to the discharge port is detachably hinged with the screening box, The end where the corresponding discharge port is located is rotatably connected to the screening box, and a slightly elastic discharge plate with the same width as the collecting plate is hinged to the end of the collecting plate at the corresponding discharge port end. One end is connected to the limit of the card slot. 3. A kind of screening machine for fast discharging in goaf filling operation as claimed in claim 1 or 2, characterized in that, the opposite ends of the discharge ports corresponding to the screen mesh and the collecting plate are respectively A ring-shaped cylinder is hinged with the screening box wall, the ring-shaped cylinder is welded and embedded on the screening box wall, and the column center and the box wall are on the same plane, and the screen mesh is hinged with the ring-shaped cylinder through a buckle. 4. A screening machine for rapid discharge in goaf filling operations according to claim 1 or 2, wherein the discharge plate is formed by embedding an iron plate and a rubber plate, and the rubber The position of the board is set close to the card slot. 5. The screening machine for fast discharging in goaf filling operation according to claim 1 or 2, wherein the clamping groove comprises a clamping groove shell, and the clamping groove shell is a hollow cuboid, Symmetrical rectangular holes are opened on the two side walls of the slot shell, and a ball is tangent to the inner wall of the hollow rectangular parallelepiped on three sides in the slot shell. Hinged through the rectangular hole with the discharge plate. 6. A screening machine for rapid discharge in goaf filling operations according to claim 1 or 2, wherein the discharge port end of the screening box is hinged to the discharge plate through a hinge . 7. A kind of screening machine for quick discharge in goaf filling operation as claimed in claim 1, it is characterized in that, described screen is a double-layer mother-child mesh, and several groups are arranged between the mother-child meshes The bouncing ball is limited by the ball stop ring.

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