CN117600064A

CN117600064A - Screening machine for fine sand stone

Info

Publication number: CN117600064A
Application number: CN202311765185.0A
Authority: CN
Inventors: 娄珂
Original assignee: Jiangsu Laishidun Building Technology Co ltd
Current assignee: Jiangsu Laishidun Building Technology Co ltd
Priority date: 2023-12-20
Filing date: 2023-12-20
Publication date: 2024-02-27

Abstract

The invention discloses a screening machine for fine sand stones, which belongs to the technical field of screening and comprises a screening box with a vibration function, wherein a screening plate which is obliquely arranged is fixedly arranged in an inner cavity of the screening box. The surface mounting of sieve has a plurality of support bars, all forms a sieve way between two arbitrary adjacent support bars, and the bottom of sieve way is equipped with a plurality of sieve mesh. The crushing strips are arranged on two sides of the middle part of the screen, and the crushing strips on two sides of the same screen can move along with the vibration of the screening box. When in the screening process, the material of less granule can drop in the sieve way, and the material of great granule can roll along the slide to outwards discharge through the bin outlet, reduce the risk of sieve way jam.

Description

Screening machine for fine sand stone

Technical Field

The invention relates to a screening machine for fine sand stones, and belongs to the technical field of screening machines.

Background

The sand and stone screening is mainly used for controlling the quality of sand and stone aggregates, the sand and stone aggregates are screened through a screening machine, a screen plate in the screening machine is mainly used for screening or separating materials, the materials are screened according to the sizes of the particle sizes through screen holes with different mesh sizes, so that the materials with different particle sizes can be separated out.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a screening machine for fine sand stones, which can solve the problems of stacking and low working efficiency.

In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a sieve separator for fine sand stone, the sieve separator is including having vibrations function screening case, fixed mounting has the sieve that the slope was arranged in the inner chamber of screening case.

The surface mounting of sieve has a plurality of support bars, all forms a sieve between two arbitrary adjacent support bars and says, the bottom of sieve says is equipped with a plurality of sieve mesh.

The crushing strips are arranged on two sides of the middle of the screen, and the crushing strips on two sides of the same screen can move along with vibration of the screening box.

Preferably, the two breaking bars are provided with breaking surfaces on the side walls on the opposite sides, and the distance between the two breaking surfaces is gradually increased along the direction of the movement of the material.

Preferably, the two breaking bars in the same sieve channel are respectively a driving bar and a fixing bar, the driving bar is slidably mounted on the side wall of the supporting bar at the corresponding side, and the fixing bar is fixedly mounted on the supporting bar at the corresponding side.

Preferably, two ends of the screening box are connected with a plurality of first supporting shafts, the driving strips are sleeved on the first supporting shafts, and elastic bodies are sleeved at two ends of the driving strips outside the first supporting shafts.

Preferably, two breaking bars in the same sieve channel are side bars fixedly mounted on the supporting bars, the side bars and the supporting bars are integrally formed, and the supporting bars are slidably mounted on the surface of the sieve plate.

Preferably, the weights of any two adjacent support bars are different.

Preferably, two ends of the screening box are connected with a plurality of second supporting shafts, the supporting rods are sleeved outside the second supporting shafts, and two elastic bodies are sleeved at two ends of the supporting rods outside the second supporting shafts.

Preferably, the support bar is in a strip shape, both sides of the upper end of the support bar are provided with bar-shaped parts protruding towards both sides, and two adjacent bar-shaped parts form a slideway for fine sand and gravel to roll.

Preferably, the screening box is installed on the support, the both ends of support are connected with the screening box through supporting spring respectively, the mid-mounting of support has the drive arrangement who is used for driving screening box vibrations, the inside of screening box is equipped with upper end open-ended vibrations cavity, and the inside at vibrations cavity is installed to the sieve, the baffle is installed to the lower extreme bottom of the slope of sieve, and sieve and baffle separate vibrations cavity into a plurality of screening rooms, every screening room respectively with the bin outlet intercommunication that corresponds.

Preferably, the number of the sieve plates is a plurality of, a plurality of the sieve plates are arranged up and down, when the number of the sieve plates is n, the sieve plates and the partition plates at the bottoms of the sieve plates divide the vibration chamber into n+1 screening chambers, and each screening chamber is correspondingly communicated with one discharge hole.

Compared with the prior art, the screening method has the advantages that the screening channels are formed in the screening plates, when the materials with smaller particles fall into the screening channels in the screening process, the materials with larger particles roll along the sliding ways and are discharged outwards through the discharge openings, the screening method can discharge the larger particles in a short time compared with the screening method of a common screening plate, the materials with smaller particles fall into the screening channels, the crushing plates are arranged on the two sides of the screening channels, the materials which are likely to block the screening holes can be crushed in advance, so that the risk of blocking the screening channels is reduced, an open included angle exists between the two crushing plates, and the materials can be prevented from being blocked in a gap of the crushing device.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a schematic view showing the internal structure of the screening box of the present invention.

Fig. 4 is a schematic diagram of a discharge structure of a screen plate according to the present invention.

Fig. 5 is a partial cross-sectional view of a screen panel in accordance with a first embodiment of the invention.

FIG. 6 is a cross-sectional view taken at A-A of FIG. 5 in accordance with the present invention.

Fig. 7 is a partial cross-sectional view of a screen panel in accordance with a second embodiment of the invention.

In the figure: 1. the device comprises a support, 2, a supporting spring, 3, a discharge hole, 4, a screening box, 5, a cover plate, 6, a driving device, 7, a first screening chamber, 8, a second screening chamber, 9, a third screening chamber, 10, an elastic body I, 11, a supporting bar, 12, a screening channel, 13, a fixing bar, 14, a screen hole, 15, a driving bar, 16, a screen plate, 17, a supporting shaft I, 18, a side rib, 19, a supporting shaft II, 20 and an elastic body II.

Detailed Description

The invention is illustrated below by means of specific examples, without however limiting the invention.

Example 1

As shown in fig. 1 to 6, in the screening machine for fine sand stone provided in this embodiment, a screening box 4 with a vibration function is installed on a support 1, two ends of the support 1 are respectively connected with the screening box 4 through supporting springs 2, a driving device 6 for driving the screening box 4 to vibrate is installed in the middle of the support 1, a tripod 1 is installed on each of the support 1 and the screening box 4, two corresponding tripod 1 are provided with two mounting surfaces parallel to each other, a position where a vertical projection of any one mounting surface coincides with the other mounting surface is provided with a position where the vertical projection of any one mounting surface coincides with the other mounting surface, two ends of the supporting springs 2 are respectively installed on the two mounting surfaces, a plurality of supporting springs 2 can be connected between the two corresponding mounting surfaces, the number of the supporting springs 2 is selected according to the weight of the screening box 4, the heavier the screening box 4 is, and the number of the supporting springs 2 is increased; the number of the supporting springs 2 is greater than two, and when the number of the supporting springs 2 is even, the supporting springs 2 are symmetrically arranged left and right in the length direction of the bracket 1, when the number of the supporting springs 2 is a base number, the middle part of the bracket 1 is connected with one supporting spring 2, the rest supporting springs 2 are symmetrically arranged, the driving device 6 is fixed at the middle part of the bracket 1, and the other end of the driving device 6 is connected at the bottom of the screening box 4, and the driving device 6 can be connected in various connection modes, for example: cam, cylinder drive, can guarantee screening case 4 to do regular or irregular motion can for support 1, the drive mode of this embodiment is that the hydro-cylinder drives, install articulated connecting rod on support 1, screening case 4's bottom of the case is fixed with the hydro-cylinder, the output of hydro-cylinder articulates with the tip of connecting rod, when the hydro-cylinder makes extension-shorten-extension's motion, drive screening case 4 and make regular motion, screening case 4's inside is equipped with the vibration cavity of upper end opening, vibration cavity's chamber bottom is the inclined plane, the material can be along chamber bottom removal and discharge, vibration cavity's upper end can install apron 5, can feed into the material pipe on the apron 5, can supply material to this device, vibration cavity's internal connection has the sieve 16 of slope arrangement, the pan feeding end of material is the higher one end of sieve 16, when the material falls on sieve 16, sieve 16 rocks along screening case 4, the larger particle materials can slide downwards along the sieve plate 16, the smaller particle materials fall downwards through the sieve holes 14 of the sieve plate 16, the bottom of the sieve plate 16 is provided with the baffle plates, the bottom of the sieving box 4 is provided with the discharge openings 3, the number of the sieve plates 16 is multiple, the plurality of sieve plates 16 are arranged up and down, when the number of the sieve plates 16 is two, the sieve plates 16 and the baffle plates at the bottom divide the vibrating chamber into three sieving chambers, each sieving chamber is correspondingly communicated with one discharge opening 3, the sieve plates 16 sieve out the larger particles to roll downwards along the sieve plates 16, roll and fall at the discharge openings 3, the larger particles are discharged outwards through the discharge openings 3, workers only need to collect at the bottoms of the plurality of discharge openings 3, the sieve plates 16 and the baffle plates divide the vibrating chamber into a plurality of sieving chambers, each sieving chamber is respectively communicated with the corresponding discharge opening 3, the discharge openings 3 and the sieving chambers are in one-to-one correspondence, the screening chambers are independent of each other, the upper screening chamber can only drop to the screening chamber at the bottom through the screen holes 14 on the screen plate 16, and in combination with fig. 3 and 4, the number of the screen plates 16 is two, the two screen plates 16 divide the vibration chamber into a first screening chamber 7, a second screening chamber 8 and a third screening chamber 9, materials in the first screening chamber 7 can enter the second screening chamber 8 through the screen plate 16 at the upper part, and materials in the second screening chamber 8 enter the third screening chamber 9 through the screen plate 16 at the lower part, so that the screening function is completed.

The diameter of the sieve holes 14 on the sieve plate 16 is larger than that of the sieve holes 14 on the sieve plate 16 at the bottom of the sieve plate, the distance between two broken strips is smaller than that of the sieve holes 14, and the diameters of the materials screened by the screening chambers are sequentially reduced.

The surface of screen plate 16 has seted up a plurality of sieves way 12 along its length direction, and the upper surface at screen plate 16 is arranged along the length direction of screen plate 16 to sieves way 12, and a plurality of sieve meshes 14 have all been seted up to the bottom of every sieve way 12, and the shortest distance between two support bars 11 is less than the maximum diameter of sieve mesh 14, and when the diameter of graininess material was less than the distance between two support bars 11, can fall in sieves way 12 to pass through in the sieve mesh 14 of sieve way 12 bottom, fall to the bottom screening room.

In combination with fig. 5 and 6, two crushing strips are provided with crushing surfaces on the side walls on opposite sides, the distance between the two crushing surfaces is gradually increased along the movement direction of the materials, an included angle exists between the two crushing strips and is conical, the opening of the sieve channel 12 is increased along the movement of the materials, the blockage of the materials in the sieve channel 12 can be avoided, the risk of the blockage of the sieve channel 12 is reduced, when the materials fall between the two crushing strips, the front end space of the crushing strips is smaller, larger materials can be crushed, after the materials move downwards for a certain distance, the space is increased, the materials which are crushed can fall to the bottom of the sieve channel 12 and are discharged from the sieve holes 14.

The supporting bar 11 is in a strip shape, both sides of the upper end of the supporting bar 11 are provided with bar-shaped pieces protruding towards both sides, two adjacent bar-shaped pieces form a slideway for fine sand to roll, and larger-particle materials can move along the slideway.

The two breaking bars in the same screen 12 are respectively a driving bar 15 and a fixing bar 13, the driving bar 15 is slidably arranged on the side wall of the supporting bar 11 at the corresponding side, and the fixing bar 13 is fixedly arranged on the supporting bar 11 at the corresponding side; the both ends of screening case 4 are connected with a plurality of back shaft one 17, initiative strip 15 cup joints on back shaft one 17, the outside of back shaft one 17 is located the both ends of initiative strip 15 and has all been cup jointed elastomer one 10, elastomer one 10 guarantees that initiative strip 15 arranges in the middle part of support bar 11 under conventional state, when screening case 4 vibrations, initiative strip 15 can back-and-forth movement, in this embodiment, when screening case 4 vibrations, initiative strip 15 can follow the vibrations of screening case 4 and back-and-forth movement, relative displacement between initiative strip 15 and the fixed strip 13, set up on the two opposite lateral walls of initiative strip 15 and fixed strip 13 and smash the face, be oval when the irregular granule of granule shape, irregular shape's material can block up sieve mesh 14, smash the strip and smash the material to the material, thereby avoid sieve mesh 14 to block up.

Example two

As shown in fig. 1-4 and 7, on the basis of the first embodiment, broken strips arranged in the sieve channel 12 are replaced by two broken strips in the same sieve channel 12, which are side ribs 18 fixedly arranged on the supporting strips 11, the side ribs 18 and the supporting strips 11 are integrally formed, and the supporting strips 11 are slidably arranged on the surface of the sieve plate 16. The weights of any two adjacent support bars 11 are different. The both ends of screening case 4 are connected with a plurality of back shaft two 19, and support bar 11 cup joints in the outside of back shaft two 19, and the outside of back shaft two 19 is located the both ends of support bar 11 and has all been cup jointed elastomer two 20, and in this embodiment, the support bar 11 of arbitrary sieve way 12 both sides all can remove to the weight of two support bars 11 is different, can produce the displacement each other to accomplish and smash, and an embodiment provides that two to smash and exist the contained angle and be the toper between the strip, when promoting the material and remove the back towards the open direction of shredding, the material hardly returns to initial position again, can always remove towards shredding open direction, after shredding loses the clamp force to the material, just can drop in sieve way 12, drop to the next screening room from sieve mesh 14.

When in use, the utility model is characterized in that: the material is emptyd at the upper end of screen plate 16 and is in the screen plate 16 surface of uppermost, screening case 4 is in the vibrations in-process, the material of less granule can get into screen path 12 earlier, and the material of great granule can roll downwards along the slide, the material of great granule is in the roll in-process, the speed of falling is faster, because the shape of material is not all circular, the irregular material of shape is likely to block in sieve mesh 14 department, the broken strip of both sides can smash such material of jam sieve mesh 14, it drops from sieve mesh 14 smoothly after smashing, and outwards discharge through bin outlet 3, a plurality of screen plates 16 can carry out multistage screening to the material, thereby accomplish screening work, great granule is because there is not the hindrance in the screening in this sieve separator, consequently the screening speed is faster than ordinary screen cloth speed, improve screening efficiency.

Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present invention and not for limiting the technical solution of the present invention, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the present invention may be modified or equivalently replaced without departing from the spirit and scope of the present invention, and any modification or partial replacement thereof should be included in the scope of the claims of the present invention.

Claims

1. The screening machine for the fine sand stone is characterized by comprising a screening box (4) with a vibration function, wherein a screening plate (16) which is obliquely arranged is fixedly arranged in the inner cavity of the screening box (4);

the surface of the sieve plate (16) is provided with a plurality of supporting bars (11), a sieve channel (12) is formed between any two adjacent supporting bars (11), and a plurality of sieve holes (14) are formed at the bottom of the sieve channel (12);

the crushing strips are arranged on two sides of the middle of the screen channel (12), and the crushing strips on two sides of the same screen channel (12) can move along with vibration of the screening box (4).

2. The screening machine for fine sand according to claim 1, wherein two breaking bars are provided with breaking surfaces on opposite side walls, and a distance between the two breaking surfaces is gradually increased along a direction of movement of the material.

3. A screening machine for fine sand according to claim 2, characterized in that the two breaking bars in the same screen (12) are a driving bar (15) and a fixing bar (13), respectively, the driving bar (15) is slidably mounted on the side wall of the supporting bar (11) on the corresponding side, and the fixing bar (13) is fixedly mounted on the supporting bar (11) on the corresponding side.

4. A fine sand screening machine according to claim 3, characterized in that the two ends of the screening box (4) are connected with a plurality of first supporting shafts (17), the driving bars (15) are sleeved on the first supporting shafts (17), and the two ends of the driving bars (15) outside the first supporting shafts (17) are sleeved with the first elastic bodies (10).

5. A screening machine for fine sand stones according to claim 2, characterized in that two breaking bars in the same screen channel (12) are side ribs (18) fixedly mounted on the supporting bars (11), the side ribs (18) and the supporting bars (11) are integrally formed, and the supporting bars (11) are slidably mounted on the surface of the screen plate (16).

6. A screening machine for fine sand according to claim 5, characterized in that the weight of any two adjacent support bars (11) is different.

7. The screening machine for fine sand stones according to claim 6, characterized in that two ends of the screening box (4) are connected with a plurality of second support shafts (19), the support bars (11) are sleeved outside the second support shafts (19), and two ends of the support bars (11) are sleeved with second elastic bodies (20) outside the second support shafts (19).

8. The screening machine for fine sand and stone according to claim 1, wherein the supporting bar (11) is in the shape of a long bar, both sides of the upper end of the supporting bar (11) are provided with bar-shaped members protruding toward both sides, and two adjacent bar-shaped members form a slide way for fine sand and stone to roll.

9. The screening machine for fine sand stones according to claim 1, characterized in that the screening box (4) is mounted on a support (1), two ends of the support (1) are respectively connected with the screening box (4) through supporting springs (2), a driving device (6) for driving the screening box (4) to vibrate is mounted in the middle of the support (1), a vibrating chamber with an upper end opening is arranged in the screening box (4), a screen plate (16) is mounted in the vibrating chamber, a partition plate is mounted at the bottom of the lower end of the screen plate (16), the screen plate (16) and the partition plate divide the vibrating chamber into a plurality of screening chambers, and each screening chamber is respectively communicated with a corresponding discharge opening (3).

10. A screening machine for fine sand according to claim 9, characterized in that the number of screening plates (16) is plural, a plurality of screening plates (16) are arranged up and down, when the number of screening plates (16) is n, the screening plates (16) and the partition plate at the bottom thereof divide the vibration chamber into n+1 screening chambers, each of which is correspondingly communicated with one discharge port (3).