CN210010155U

CN210010155U - Screening device

Info

Publication number: CN210010155U
Application number: CN201920797904.XU
Authority: CN
Inventors: 王意堂; 李懿; 张春平; 王盛祥; 贵新东; 杨岸伟
Original assignee: China Building Materials Industrial Construction Xi'an Engineering Co Ltd
Current assignee: China Building Materials Industrial Construction Xi'an Engineering Co Ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-02-04
Anticipated expiration: 2029-05-29

Abstract

The utility model relates to a screening plant, including the screening roller that power device and two at least levels set up, the screening roller includes the roller, and the circumference equipartition of roller is provided with a plurality of archs of being convenient for stir the material, and the crisscross setting of arch on two adjacent screening rollers, and power device is used for driving one of them screening roller and rotates, connects through the chain between two adjacent screening rollers. The utility model is simple in operation, reduce and cross smashing, reduce the useless work of rotor, strengthened the screening effect, the clearance of avoiding the screening roller is red and the comb board is stifled died by earth to influence screening function, rational in infrastructure, the practicality is strong, is worth promoting.

Description

Screening device

Technical Field

The utility model relates to an auxiliary assembly field for the mining, in particular to screening plant.

Background

The limestone crusher is a common mechanical device in the industrial production field, and the hammer crusher mainly completes the operation of crushing materials by impact energy. When the hammer crusher works, the motor drives the rotor to rotate at a high speed, materials uniformly enter a crusher cavity, the materials are crushed due to impact and shearing of the high-speed rotating hammer heads, meanwhile, the materials are made to impact a baffle plate and a screen bar in a frame body from the high-speed rotating hammer heads under the action of gravity of the materials, a grate plate is arranged at the lower part of the rotor, the materials smaller than the size of the grate plate in the crushed materials are discharged through the grate plate, the materials larger than the size of the grate plate are retained on the grate plate and continuously hit by the hammer until the crushed materials are crushed to the required discharge granularity, and finally the crushed materials are discharged out of the crusher through the grate plate.

In the actual production process, each area is influenced by factors such as ore bodies, rock structures, ore components and the like, the sizes of ore particle sizes in the fed initial materials are different, and in the areas with high specific gravity of fine materials in the materials, the fine materials cannot be discharged out of a crusher cavity in time when the feeding amount is increased, gaps of large materials are filled with the fine materials, so that the buffer effect is achieved, the effects of mutual extrusion, collision and hammer impact of the ores are reduced, the efficiency of a crusher is reduced, and the working energy consumption of the crusher is increased; thereby causing the aggravation of the abrasion of the hammer head of the hammer disk of the crusher, reducing the service life of the equipment and increasing the useless work for over-crushing the fine materials.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the problem that exists among the above-mentioned prior art, provide a screening plant.

The technical scheme of the utility model is that:

the utility model provides a screening plant, includes the screening roller that power device and two at least levels set up, the screening roller includes the roller, the circumference equipartition of roller is provided with a plurality of archs of being convenient for stir the material, and the crisscross setting of arch on two adjacent screening rollers, power device is used for driving one of them screening roller and rotates, connects through the chain between two adjacent screening rollers.

Preferably, the chain transmission comprises chain wheels sleeved and fixed at the tail ends of the screening rollers, and the chain wheels of two adjacent screening rollers are connected through chain transmission.

Preferably, the power device comprises a motor, a first transmission member is fixedly sleeved on an output shaft of the motor, the first transmission member is in transmission connection with a third transmission member through a second transmission member, a speed reducer is arranged on one side of the third transmission member, an input end of the speed reducer is fixedly sleeved with the third transmission member, and an output end of the speed reducer is connected with one end, deviating from the chain wheel, of the screening roller through a coupler.

Preferably, the third transmission member and the first transmission member are belt pulleys, and the second transmission member is a belt matched with the belt pulleys.

Preferably, the screening device further comprises two support bodies, and the screening roller is erected between the two support bodies through a bearing.

Preferably, the screening roller is provided with a scraper below, the scraper is used for removing mud attached to the screening roller, the scraper comprises at least two scrapers, the scrapers are vertically arranged at the bottom of each screening roller, the scrapers are in contact with the screening roller, the scrapers are fixed between two supporting bodies, a plurality of notches are formed in the tops of the scrapers, and the notches are matched with the protrusions formed in the circumferential direction of the screening roller.

Compared with the prior art, the utility model provides a pair of screening plant, its beneficial effect is:

1. the utility model discloses rational in infrastructure, easy operation.

2. The utility model discloses a screening plant can carry out the prescreening to the fritter ore that contains in the bold ore, has also prevented that mud from getting into broken chamber, avoids the comb board to block up, then sends into the broken chamber with the bold ore and carries out the breakage, reduces and smashes, reduces the useless work of the broken material of rotor, improves crushing system output.

3. The utility model discloses an arch of setting on the screening roller has increased the frictional force between ore and the screening roller, is convenient for promote the ore and removes, and enables the ore layer and undulant about advancing the in-process production, has strengthened the separation effect of bold stone and fritter stone.

4. The utility model discloses a mud scraping device that screening plant bottom set up is convenient for will be attached to and scrape off on the screening roller clay, avoids the clearance of screening roller to be stifled died by earth to influence the screening function, prevented equipment damage.

5. The utility model discloses the practicality is strong, is worth promoting.

Drawings

FIG. 1 is a schematic view of the transmission between the screening rollers of the present invention;

FIG. 2 is a view showing a state of use of the crusher according to the present invention;

FIG. 3 is a schematic view of the transmission part of the whole screening device of the present invention;

FIG. 4 is a schematic structural view of the sieving roller of the present invention;

fig. 5 is a schematic diagram of the structure of the mud scraper of the present invention.

Detailed Description

An embodiment of the present invention will be described in detail with reference to fig. 1 to 5, but it should be understood that the scope of the present invention is not limited by the embodiment.

Example 1

As shown in fig. 2, the utility model provides a pair of screening device, screening roller 47 including power device and two at least levels setting, as shown in fig. 4, screening roller 47 includes the roller, the circumference equipartition of roller is provided with a plurality of archs 471 of being convenient for stir the material, and the crisscross setting of arch 471 on two adjacent screening rollers 47, power device is used for driving one of them screening roller 47 to rotate, through chain drive connection between two adjacent screening rollers 47, and screening device can set up between the feed inlet of breaker 2 and feeding conveyer belt 1 for the material that gets into the feed inlet of breaker 2 carries out the preliminary screening.

Example 2

On the basis of embodiment 1, as shown in fig. 1, the chain transmission specifically comprises chain wheels 473 fixed at the ends of the screening rollers 47 in a sleeved mode, and the chain wheels 473 of two adjacent screening rollers 47 are in transmission connection through the chain 6.

Example 3

On the basis of embodiment 2, as shown in fig. 3, the power device includes a motor 41, a first transmission member 42 is fixed on an output shaft of the motor 41 in a sleeved manner, the first transmission member 42 is in transmission connection with a third transmission member 44 through a second transmission member 43, a speed reducer 45 is arranged on one side of the third transmission member 44, an input end of the speed reducer 45 is fixed with the third transmission member 44 in a sleeved manner, and an output end of the speed reducer 45 is connected with one end of the screening roller 47, which is away from the sprocket 473, through a coupler 46.

Example 4

On the basis of embodiment 3, the third transmission member 44 and the first transmission member 42 are pulleys, and the second transmission member 43 is a belt matched with the pulleys.

Example 5

On the basis of embodiment 1, use this device in the breaker, as shown in fig. 2, the feeding conveyer belt sets up the feed inlet at breaker 2 promptly, divide into screening chamber 21 and crushing chamber 23 with the inner chamber of breaker 2 through baffle 22, screening plant sets up in the screening chamber 21 of breaker 2, screening roller 47 erects through bearing 472 and directly erects in screening chamber 21 and baffle 22 top promptly, set up exit conveyor 3 below the comb plate 24 of breaker 2, avoid when rainy season, the easy jam of the comb plate 24 of breaker 2 in the region that the clay proportion is higher in the ore, cause breaker stifled when serious, breaker drive belt burns out, artifical clearance long-pending material work load is big, in order to prevent that the material that has the mud directly gets into crushing chamber 23, thereby make the comb plate 24 of breaker 2 block up.

Example 6

On the basis of the embodiment 5, as shown in fig. 2, in order to prevent mud from adhering to the screening rollers 47 when the material with mud is screened, which results in the gap between two adjacent screening rollers 47 being blocked, a mud scraping device 5 is further disposed below the screening rollers 47, as shown in fig. 5, the mud scraping device 5 is used for removing mud adhered to the screening rollers 47, the mud scraping device 5 comprises at least two mud scraping plates, the mud scraping plates are vertically disposed at the bottom of each screening roller 47, the mud scraping plates are in contact with the screening rollers 47, the mud scraping plates are fixed between two supporting bodies, and a plurality of notches are formed at the tops of the mud scraping plates, and the notches are matched with the protrusions 471 circumferentially disposed on the screening rollers 47.

The working principle is as follows: when the utility model is used, as shown in fig. 1, the power is switched on for the device, namely the feeding conveyor belt 1, the discharging conveyor belt 3, the crushing device in the crusher body 2 and the motor 41 start to work, at this time, the ore is fed into the feeding port of the crusher body 2 from the feeding conveyor belt 1 and then falls on the screening device 4 from the feeding port, namely falls on the screening roller 47 of the screening device 4, when the motor 41 starts to work, the motor 41 drives the first transmission piece 42 to rotate, meanwhile, the first transmission piece 42 drives the third transmission piece 44 to rotate through the second transmission piece 43, the third transmission piece 44 rotates to drive the input shaft of the reducer 45 to rotate, the output shaft of the reducer 45 rotates and drives the screening roller 47 to rotate through the coupler 46, at this time, the large materials on the screening roller 47 can be stirred through the bulges 471 on the screening roller 47, namely, the large ores roll on the screening rollers 47, and the small ores can leak along the gap between the two screening rollers 47, the partly gap that leaks down from between two screening rollers 47 of clay that contains in the ore, another part can be attached to in the circumference of screening roller 47, when the screening roller 47 that has attached to clay rotates to the bottom, at this moment, the mud scraping device 5 that screening roller 47 bottom set up hangs screening roller 47 surface adhesion's clay, the ore of fritter and the clay that is scraped off all can fall on discharging conveyor 3 through the discharge gate that screens chamber 21 bottom, then the conveying is gone out, bold ore can be in the bold 471 is continuous is impelled the broken chamber 23 of installing breaker through the arch on the screening roller 47, bold ore after breaker breakage falls on discharging conveyor 3 through the grid plate 24 of broken chamber 23 bottom, then the conveying is gone out.

In conclusion, compared with the prior art, the screening device of the utility model can pre-screen small ores contained in large ores through the screening device in the using process, prevent mud from entering the crushing cavity, avoid the blocking of the grid plate, then send the large ores into the crushing cavity for crushing, reduce over-crushing, reduce the useless work of the rotor for crushing materials and improve the yield of the crushing system; the friction force between the ore and the screening roller is increased through the bulges arranged on the screening roller, so that the ore is conveniently pushed to move, the ore layer can fluctuate up and down in the advancing process, and the screening effect of large stones and small stones is enhanced; through the mud scraping device that screening device bottom set up, be convenient for will be attached to on the screening roller clay and scrape and fall to the clearance of avoiding the screening roller is stifled died by earth, thereby influences the screening function, has prevented equipment damage, and this is rational in infrastructure, and the practicality is strong, is worth promoting.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the embodiments, and any changes that can be considered by those skilled in the art shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a screening plant, its characterized in that includes power device and two at least screening rollers (47) of level setting, screening roller (47) include the roller, the circumference equipartition of roller is provided with a plurality of archs (471) of being convenient for stir the material, and the arch (471) staggered arrangement on two adjacent screening rollers (47), power device is used for driving one of them screening roller (47) and rotates, passes through chain drive connection between two adjacent screening rollers (47).

2. A screening arrangement according to claim 1, wherein the chain drive comprises in particular chain wheels (473) fixed to the ends of the screening rollers (47) in a nested manner, the chain wheels (473) of two adjacent screening rollers (47) being drivingly connected by a chain (6).

3. A screening device according to claim 2, wherein the power unit comprises a motor (41), a first transmission member (42) is sleeved and fixed on an output shaft of the motor (41), the first transmission member (42) is in transmission connection with a third transmission member (44) through a second transmission member (43), a speed reducer (45) is arranged on one side of the third transmission member (44), an input end of the speed reducer (45) is sleeved and fixed with the third transmission member (44), and an output end of the speed reducer (45) is connected with one end of the screening roller (47) which is far away from the chain wheel (473) through a coupling (46).

4. A screening device according to claim 3, wherein the third (44) and first (42) drive members are pulleys and the second (43) drive member is a belt adapted to fit the pulleys.

5. A screening device according to claim 1, further comprising two support bodies, the screening roller (47) being mounted between the two support bodies by means of bearings (472).

6. A screening device according to claim 5, characterised in that a scraper means (5) is arranged below the screening rollers (47), said scraper means (5) being adapted to remove the mud adhering to the screening rollers (47), said scraper means (5) comprising at least two scrapers arranged vertically at the bottom of each screening roller (47), the scrapers being in contact with the screening rollers (47) and being fixed between the two supports, and the top of the scrapers being provided with a plurality of notches matching the projections (471) circumferentially arranged on the screening rollers (47).