CN222325379U

CN222325379U - Limestone crushing system feeding machine

Info

Publication number: CN222325379U
Application number: CN202420593139.0U
Authority: CN
Inventors: 张雪刚; 邹世勇; 杨彬; 凌崇勇; 王文
Original assignee: Sichuan Ebian Southwest Cement Co ltd
Current assignee: Sichuan Ebian Southwest Cement Co ltd
Priority date: 2024-03-26
Filing date: 2024-03-26
Publication date: 2025-01-10
Anticipated expiration: 2034-03-26

Abstract

The utility model discloses a feeding machine of a limestone crushing system, which solves the problem that in the prior art, a middle plate feeding machine directly feeds limestone, soil and impurities into a crushing cavity, so that the crushing cavity and a discharging grate plate are easy to be blocked. The utility model comprises a feeder shell, a first screening device arranged in the feeder shell, a second screening device arranged in the feeder shell and butted with the first screening device, and two driving motors arranged on the feeder shell and respectively connected with the first screening device and the second screening device, wherein scraping plates are arranged in the first screening device and the second screening device. According to the utility model, the limestone material is screened by the first screening device and the second screening device, so that soil and impurities are prevented from entering the shell of the feeder, and meanwhile, the baffles are arranged on the first screening device and the second screening device, so that the soil or impurities attached to the first screening device and the second screening device can be scraped, and the screening efficiency is improved.

Description

Limestone crushing system feeding machine

Technical Field

The utility model relates to the technical field of cement processing, in particular to a feeding machine of a limestone crushing system.

Background

Limestone materials are prone to adhering to a large amount of clay or impurities during blasting, loading and transporting. When the limestone material is crushed, the adhered soil and impurities directly enter the crushing cavity through the plate feeder and then adhere to the inside of the crushing cavity, the hammer disc and the grate plate to cause accumulation, so that the crushing cavity and the discharging grate plate are blocked, the production capacity of the crusher can be reduced, the soil and the impurities are adhered in the crushing cavity, the hammer head, the hammer disc, the lining plate and other parts are worn, the service life of the parts is shortened, and the cost of crushing equipment is increased. In addition, the higher the soil content in the limestone material is, the larger the influence on the crusher is, particularly the weather of cloudy, rainy and snowy is more serious, even the overload jump stop condition of the crushing motor can occur, and the productivity is seriously reduced.

Disclosure of utility model

The utility model provides a feeding machine of a limestone crushing system, which at least solves the technical problems of the prior art.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

a feeding machine of a limestone crushing system comprises a feeding machine shell, a first screening device arranged in the feeding machine shell, a second screening device arranged in the feeding machine shell and in butt joint with the first screening device, and two driving motors arranged on the feeding machine shell and respectively connected with the first screening device and the second screening device, wherein scraping plates are arranged in the first screening device and the second screening device.

Further, the first screening device comprises a first driving roll shaft which is rotatably arranged in the shell of the feeding machine and connected with a corresponding driving motor, and a plurality of first driven roll shafts which are rotatably arranged in the shell of the feeding machine side by side, wherein a first transmission structure is arranged between the first driving roll shaft and the first driven roll shafts.

Further, the first driving roll shaft is provided with a plurality of scrapers in parallel and equidistantly along the length direction, the first driven roll shaft is provided with a plurality of scrapers in parallel and equidistantly along the length direction, and the scrapers on the first driving roll shaft and the first driven roll shaft are distributed in a staggered mode.

Further, the first transmission structure comprises a driving sprocket A arranged on the first driving roll shaft, a driven sprocket A arranged on the first driven roll shaft and a transmission chain A sleeved between the driving sprocket A and the driven sprocket A.

Further, the second screening device comprises a second driving roll shaft which is rotationally arranged in the shell of the feeding machine and connected with a corresponding driving motor, and a plurality of second driven roll shafts which are rotationally arranged in the shell of the feeding machine side by side, a second transmission mechanism is arranged between the second driving roll shaft and the second driven roll shafts, and the scraping plates are arranged on the second driving roll shaft and the second driven roll shafts.

Further, the second driving roll shaft is provided with a plurality of scrapers in parallel and equidistantly along the length direction, the second driven roll shaft is provided with a plurality of scrapers in parallel and equidistantly along the length direction, and the scrapers on the second driving roll shaft and the second driven roll shaft are distributed in a staggered mode.

Further, the second transmission mechanism comprises a driving sprocket B arranged on the second driving roll shaft, a driven sprocket B arranged on the second driven roll shaft and a transmission chain B sleeved between the driving sprocket B and the driven sprocket B.

Further, a guide plate which is connected is arranged between the first screening device and the second screening device.

Further, one end of the shell of the feeding machine is provided with a feeding mechanism which is matched with the first screening device and used for feeding, and the other end of the shell of the feeding machine is provided with a discharging mechanism which is matched with the second screening device and used for discharging;

the feeding mechanism comprises a feeding port which is arranged at the top of the front end of the shell of the feeding machine and is positioned right above the first screening device, and a material guide plate which is arranged in the feeding port and is matched with the first screening device.

Further, the discharging mechanism comprises a screening discharging hole which is formed in the bottom of the feeder shell and is matched with the first screening device, a crushing discharging hole which is formed in the bottom of the feeder shell and is matched with the second screening device, and a discharging hole which is formed in the rear end of the feeder shell and is matched with the second screening device, and a discharging guide plate which is positioned between the crushing discharging hole and the discharging hole is arranged in the feeder shell.

Compared with the prior art, the utility model has the following beneficial effects:

The utility model has simple structure, scientific and reasonable design and convenient use, the first screening device and the second screening device can effectively screen limestone materials, thereby avoiding clay or impurities from entering the crusher, the second screening device can screen limestone with the volume conforming to the crushing condition into the crusher, and the limestone which does not conform to the crushing condition is conveyed to the limestone material accumulation area, thereby avoiding that the limestone, clay and impurities with smaller volume enter the crusher to influence the crushing efficiency of the crusher, and meanwhile, the scraping plates are arranged on the first screening device and the second screening device, and the scraping plates are used for scraping the clay and the impurities attached to the first screening device and the second screening device, so as to avoid that the limestone is attached to the first screening device and the second screening device to influence the screening efficiency of the limestone.

Drawings

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

Fig. 2 is a cross-sectional view of the present utility model.

Fig. 3 is a top view of the present utility model.

Fig. 4 is an enlarged view of the present utility model at a.

Fig. 5 is an enlarged view of the present utility model at B.

Fig. 6 is a schematic view of a first screening device and a second screening device according to the utility model.

Wherein, the names corresponding to the reference numerals are:

1. the feeding machine comprises a feeding machine shell, a first screening device, a second screening device, a driving mechanism, a 5, a scraping plate, an 8, a guide plate, a 6, a feeding mechanism, a 7, a discharging mechanism, a 21, a first driving roll shaft, a 22, a first driven roll shaft, a 23, a first transmission structure, a 24, a driving chain wheel A, a 25, a driven chain wheel A, a 26, a transmission chain A, a 31, a second driving roll shaft, a 32, a second driven roll shaft, a 33, a second transmission mechanism, a 34, a driving chain wheel B, a 35, a driven chain wheel B, a 36, a chain B, a 41, a motor, a 61, a feeding hole, a 62, a guide plate, a 63, a screening discharging hole, a 71, a crushing discharging hole, a 72, a discharging hole and a 73, and a guide plate.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. 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.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus they should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, or may be, of course, mechanically connected, or electrically connected, or may be, in addition, directly connected, or indirectly connected through an intermediate medium, or may be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

As shown in figures 1-6, the limestone crushing system feeder provided by the utility model comprises a feeder shell 1, a first screening device 2 arranged in the feeder shell 1, a second screening device 3 arranged in the feeder shell 1 and butted with the first screening device 2, and two driving motors 4 arranged on the feeder shell 1 and respectively connected with the first screening device 2 and the second screening device 3, wherein scraping plates 5 are arranged in the first screening device 2 and the second screening device 3.

According to the utility model, limestone materials enter the feeder shell 1 through the conveying device, one driving motor 4 drives the first screening device 2 to rotate, the other driving motor 4 drives the second screening device 3 to rotate, the first screening device 2 screens limestone materials, clay and impurities with smaller volumes, the limestone materials with larger volumes are conveyed into the second screening device 3, the second screening device 3 screens limestone meeting the crushing requirements, and limestone which does not meet the crushing requirements is conveyed to the limestone material storage area.

The utility model discloses two driving motors which are arranged on a feeder shell 1 and are respectively connected with a first screening device 2 and a second screening device 3, in particular to a driving motor, wherein the output end of one driving motor 4 is connected with the first screening device 2, and the output end of the other driving motor 4 is connected with the second screening device 3.

Example 2.

The first screening device 2 comprises a first driving roll shaft 21 which is rotatably arranged in the feeder shell 1 and is connected with a corresponding driving motor 4, and a plurality of first driven roll shafts 22 which are rotatably arranged in the feeder shell 1 side by side, wherein a first transmission structure 23 is arranged between the first driving roll shaft 21 and the first driven roll shafts 22.

The embodiment 2 provides a more preferable structure of the first screening device 2 on the basis of the embodiment 1, specifically, the first screening device 2 comprises a first driving roll shaft 21 rotatably arranged in the feeder shell 1 and connected with a corresponding driving motor 4, and a plurality of first driven roll shafts 22 rotatably arranged in the feeder shell 1 side by side, and a first transmission structure 23 is arranged between the first driving roll shaft 21 and the first driven roll shafts 22.

The first driving roll shaft 21 is rotatably arranged in the feeder shell 1 and is connected with the corresponding driving motor 4, the first driven roll shafts 22 are rotatably arranged in the feeder shell 1 side by side, meanwhile, the first driving roll shaft 21 and the first driven roll shafts 22 are driven by a first transmission structure 23, specifically, the driving motor 4 drives the first driving roll shaft 21 to rotate, the first driving roll shaft 21 drives the first driven roll shafts 22 to rotate by the first transmission structure 23, and gaps for screening limestone materials are reserved between the first driving roll shaft 21 and the first driven roll shafts 22, so that limestone can be screened out of smaller limestone materials, clay and impurities through the gaps in the conveying process of the first driving roll shaft 21 and the first driven roll shafts 22, and clay and impurities are prevented from entering the crusher.

In the present utility model, the distance between the first driving roll shaft 21 and the first driven roll shaft 22 can be selected according to the requirement, and in this embodiment, the distance between the first driving roll shaft 21 and the first driven roll shaft 22 is preferably 20-50mm, so that the first driving roll shaft 21 and the first driven roll shaft 22 are convenient for sieving the limestone material.

Example 3.

The first driving roll shaft 21 is provided with a plurality of scrapers 5 in parallel and equidistantly along the length direction, the first driven roll shaft 22 is provided with a plurality of scrapers 5 in parallel and equidistantly along the length direction, and the scrapers 5 on the first driving roll shaft 21 and the first driven roll shaft 22 are distributed in a staggered manner.

The embodiment 3 provides a more preferable mechanism of the first driving roll shaft 21 on the basis of the embodiment 2, specifically, the first driving roll shaft 21 is provided with a plurality of scrapers 5 in parallel and equidistantly along the length direction, the first driven roll shaft 22 is provided with a plurality of scrapers 5 in parallel and equidistantly along the length direction, and the scrapers 5 on the first driving roll shaft 21 and the first driven roll shaft 22 are distributed in a staggered manner.

The scrapers arranged on the first driving roll shaft 21 and the first driven roll shaft 22 are distributed side by side at equal intervals along the respective length directions, the scrapers 5 on the first driving roll shaft 21 and the scrapers 5 on the adjacent first driven roll shafts 22 are arranged in a staggered mode, and the scrapers 5 on the adjacent two first driven roll shafts 22 are arranged in a staggered mode, so that limestone materials, soil and impurities attached to the first driving roll shaft 21 or the first driven roll shafts 22 can be scraped conveniently, and gaps between the first driving roll shaft 21 and the first driven roll shafts 22 are prevented from being blocked by the limestone materials, the soil and the impurities.

Example 4.

The first transmission structure 23 includes a driving sprocket a24 provided on the first driving roller shaft 21, a driven sprocket a25 provided on the first driven roller shaft 22, and a transmission chain a26 sleeved between the driving sprocket a24 and the driven sprocket a 25.

The preferred structure of the first transmission structure 23 is shown in embodiment 4 based on embodiment 2, specifically, the first transmission structure 23 includes a driving sprocket a24 disposed on the first driving roller shaft 21, a driven sprocket a25 disposed on the first driven roller shaft 22, and a transmission chain a26 sleeved between the driving sprocket a24 and the driven sprocket a 25.

The driving chain wheel A24 is arranged on the first driving roll shaft 21, the driven chain wheels A25 which are matched with the driving chain wheel A24 are arranged on the first driven roll shaft 22, the driving chain wheel A24 and the driven chain wheel A25 are positioned on the same side of the first driving roll shaft 21 or the first driven roll shaft 22, a transmission chain A26 which is matched with the driving chain wheel A24 and the driven chain wheel A25 is arranged between the driving chain wheel A24 and the driven chain wheel A25, specifically, the driving motor 4 drives the first driving roll shaft 21 to rotate, the first driving roll shaft 21 drives the driving chain wheel A24 to rotate, the driving chain wheel A24 drives the driven chain wheel A25 to rotate through the transmission chain A26, and the driven chain wheel A25 drives the first driven roll shaft 22 corresponding to rotate, so that the first driving roll shaft 21 and the first driven roll shaft 22 are driven to screen limestone materials.

The driving sprocket A24 and the driven sprocket A25 are positioned at the same end of the first driving roll shaft 21 or the first driven roll shaft 22, the driving sprocket A24 and the first driving roll shaft 21 synchronously rotate, the driven sprocket A25 and the first driven roll shaft 22 synchronously rotate, and the driven sprocket A25 and the driving sprocket A24 synchronously rotate through a transmission chain A26.

Example 5.

The second screening device 3 comprises a second driving roll shaft 31 which is rotatably arranged in the feeder shell 1 and is connected with a corresponding driving motor 4, and a plurality of second driven roll shafts 32 which are rotatably arranged in the feeder shell 1 side by side, wherein a second transmission mechanism 33 is arranged between the second driving roll shaft 31 and the second driven roll shaft 32, and the scraping plates 5 are arranged on the second driving roll shaft 31 and the second driven roll shaft 32.

The embodiment 5 provides a more preferable structure of the second screening device 3 on the basis of the embodiment 1, specifically, the second screening device 3 comprises a second driving roll shaft 31 rotatably arranged in the feeder shell 1 and connected with a corresponding driving motor 4, and a plurality of second driven roll shafts 32 rotatably arranged in the feeder shell 1 side by side, and a second transmission mechanism 33 is arranged between the second driving roll shaft 31 and the second driving roll shaft 31.

The second driving roll shaft 31 is rotatably arranged in the feeder shell 1 and is connected with the corresponding driving motor 4, the plurality of second driven roll shafts 32 are rotatably arranged in the feeder shell 1 side by side, meanwhile, the second driving roll shaft 31 and the second driven roll shafts 32 are in transmission connection through the second transmission mechanism 33, specifically, the driving motor 4 drives the second driving roll shaft 31 to rotate, the second driving roll shaft 31 drives the second driven roll shaft 32 to rotate through the second transmission mechanism 33, and gaps for screening limestone materials are reserved between the second driving roll shaft 31 and the second driven roll shaft 32, so that limestone materials meeting the crushing requirements can be put into the crusher through the gaps in the conveying process of the second driving roll shaft 31 and the second driven roll shaft 32, limestone materials not meeting the crushing requirements are conveyed to the material storage area, and the limestone materials not meeting the crushing requirements are prevented from entering the crusher.

Example 6.

The second screening device 3 comprises a second driving roll shaft 31 which is rotatably arranged in the feeder shell 1 and is connected with the corresponding driving motor 4, and a plurality of second driven roll shafts 32 which are rotatably arranged in the feeder shell 1 side by side, wherein a second transmission mechanism 33 is arranged between the second driving roll shaft 31 and the second driven roll shafts 32.

The second driving roll shaft 31 is provided with a plurality of scrapers 5 in parallel and equidistantly along the length direction, the second driven roll shaft 32 is provided with a plurality of scrapers 5 in parallel and equidistantly along the length direction, and the scrapers 5 on the second driving roll shaft 31 and the second driven roll shaft 32 are distributed in a dislocation manner.

The embodiment 6 provides a more preferable structure of the second driving roll shaft 31 on the basis of the embodiment 5, specifically, the second driving roll shaft 31 is provided with a plurality of scrapers 5 in parallel and equidistantly along the length direction, the second driven roll shaft 32 is provided with a plurality of scrapers 5 in parallel and equidistantly along the length direction, and the scrapers 5 on the second driving roll shaft 31 and the second driven roll shaft 32 are distributed in a staggered manner.

The scrapers 5 arranged on the second driving roll shaft 31 and the second driven roll shafts 32 are distributed side by side at equal intervals along the respective length directions, and the scrapers 5 on the second driving roll shaft 31 and the scrapers 5 on the adjacent second driven roll shafts 32 are arranged in a staggered manner, so that limestone materials, soil and impurities attached to the second driving roll shaft 31 or the second driven roll shafts 32 can be scraped conveniently, and the gaps between the second driving roll shaft 31 and the second driven roll shafts 32 are prevented from being blocked by the limestone materials, the soil and the impurities.

Example 7.

The second transmission mechanism 33 includes a driving sprocket B34 provided on the second driving roller shaft 31, a driven sprocket B35 provided on the second driven roller shaft 32, and a transmission chain B36 interposed between the driving sprocket B34 and the driven sprocket B35.

The embodiment 7 provides a more preferable structure of the second transmission mechanism 33 on the basis of the embodiment 5, specifically, the second transmission mechanism 33 includes a driving sprocket B34 provided on the second driving roller shaft 31, a driven sprocket B35 provided on the second driven roller shaft 32, and a transmission chain B36 sleeved between the driving sprocket B34 and the driven sprocket B35.

The driving chain wheel B34 is arranged on the second driving roll shaft 31, the driven chain wheels B35 matched with the driving chain wheel B34 are arranged on the second driven roll shaft 32, the driving chain wheel B34 and the driven chain wheels B35 are arranged on the same side of the second driving roll shaft 31 or the second driven roll shaft 32, a transmission chain B36 matched with the driving chain wheel B34 and the driven chain wheel B35 is arranged between the driving chain wheel B34 and the driven chain wheel B35, specifically, the driving motor 4 drives the second driving roll shaft 31 to rotate, the second driving roll shaft 31 drives the driving chain wheel B34 to rotate, the driving chain wheel B34 drives the driven chain wheel B35 to rotate through the transmission chain B36, and the driven chain wheel B35 drives the second driven roll shaft 32 corresponding to the driving chain wheel B34 to rotate, so that the second driving roll shaft 31 and the second driven roll shaft 32 are driven to screen limestone materials.

The driving sprocket B34 and the driven sprocket B35 are positioned at the same end of the second driving roll shaft 31 or the second driven roll shaft 32, the driving sprocket B34 and the second driving roll shaft 31 synchronously rotate, the driven sprocket B35 and the second driven roll shaft 32 synchronously rotate, and the driven sprocket B35 and the driving sprocket B34 synchronously rotate through a transmission chain B36.

Example 8.

A guide plate 8 connected with the first screening device 2 and the second screening device 3 is arranged between the first screening device and the second screening device.

This embodiment 8 gives a more preferred construction of the feeder housing 1 on the basis of embodiment 1, in particular with a guiding plate 8 engaged between the first screening means 2 and the second screening means 3.

The guide plate 8 is obliquely arranged in the feeder shell 1 and is positioned between the first screening device 2 and the second screening device 3, so that limestone screened by the first screening device 2 is guided, the limestone can stably enter the second screening device 3, and the damage of the second screening device 3 caused by direct falling of the limestone is avoided.

Example 9.

One end of the feeder shell 1 is provided with a feeding mechanism 6 which is matched with the first screening device 2 and used for feeding, and the other end is provided with a discharging mechanism 7 which is matched with the second screening device 3 and used for discharging;

The feeding mechanism 6 comprises a feeding port 61 which is arranged at the top of the front end of the feeder shell 1 and is positioned right above the first screening device 2, and a material guiding plate 62 which is arranged in the feeding port 61 and is matched with the first screening device 2.

The embodiment 9 provides a more preferable structure of the feeder shell 1 on the basis of the embodiment 1, specifically, one end of the feeder shell 1 is provided with a feeding mechanism 6 which is matched with the first screening device 2 for feeding, and the other end is provided with a discharging mechanism 7 which is matched with the second screening device 3 for discharging;

According to the utility model, one end of the feeder shell 1 is provided with the feeding mechanism 6 which is matched with the first screening device 2 and used for feeding, the other end of the feeder shell is provided with the discharging mechanism 7 which is matched with the second screening device 3 and used for discharging, the feeding mechanism 6 can facilitate throwing limestone materials into the feeder shell 1 so as to facilitate screening of the limestone materials, and the discharging mechanism 7 can facilitate discharging of the limestone materials screened by the second screening device 3 so as to avoid accumulation of the limestone materials in the feeder shell 1.

The feeding mechanism 6 comprises a feeding opening 61 which is arranged at the top of the front end of the feeder shell 1 and is positioned right above the first screening device 2, and a guide plate 62 which is arranged in the feeding opening 61 and is matched with the first screening device 2, wherein the feeding opening 61 can be used for conveniently throwing limestone into the first screening device 2, and the limestone can be guided by the guide plate 62 when being thrown, so that the limestone can accurately fall on the first screening device 2.

Example 10

The discharging mechanism 7 comprises a screening discharging hole 63 which is formed in the bottom of the feeder shell 1 and is matched with the first screening device 2, a crushing discharging hole 71 which is formed in the bottom of the feeder shell 1 and is matched with the second screening device 3, and a discharging hole 72 which is formed in the rear end of the feeder shell 1 and is matched with the second screening device 3, wherein a discharging guide plate 73 which is positioned between the crushing discharging hole 71 and the discharging hole 72 is arranged in the feeder shell 1.

The embodiment 10 provides a more preferable structure of the discharging mechanism 7 on the basis of the embodiment 9, specifically, the discharging mechanism 7 comprises a screening discharging hole 63 which is arranged at the bottom of the feeder shell 1 and is matched with the first screening device 2, a crushing discharging hole 71 which is arranged at the bottom of the feeder shell 1 and is matched with the second screening device 3, and a discharging hole 72 which is arranged at the rear end of the feeder shell 1 and is matched with the second screening device 3, and a discharging guide plate 73 which is positioned between the crushing discharging hole 71 and the discharging hole 72 is arranged in the feeder shell 1.

The screening discharge port 63 is arranged at the bottom of the feeder shell 1 and is matched with the first screening device 2, the screening discharge port 63 can be convenient for discharging limestone materials screened by the first screening device 2, the crushing discharge port 71 is arranged at the bottom of the feeder shell 1 and is matched with the second screening device 3, so that limestone screened by the second screening device 3 and meeting the crushing requirement is conveniently put into the crusher, and the discharge port 72 can discharge limestone which does not meet the crushing requirement of the crusher into the feeder shell 1 under the action of the second screening device 3, so that the limestone is prevented from being accumulated in the feeder shell 1 to cause blockage.

The discharging guide plate 73 is arranged in the feeder shell 1 and is positioned between the crushing discharging hole 71 and the discharging hole 72, and the discharging guide plate 73 can guide limestone materials which do not meet the crushing requirement, so that the limestone materials can fall in a stone material accumulation area.

The working principle of the utility model is as follows:

When the lime stone material is used, the lime stone material is conveyed into the feeder shell 1 through the feeding hole 61 by the conveyor belt, the driving motor 4 is started, the driving motor 4 drives the first screening device 2 and the second screening device 3 to rotate respectively, when lime stone is on the first screening device 2, the first screening device 2 screens the lime stone material with smaller volume, soil and impurities, after the screening is completed, the lime stone material is conveyed onto the second screening device 3, the second screening device 3 drops the lime stone meeting the crushing requirement into the crusher through the crushing discharge hole 71 to crush, and the lime stone not meeting the requirement is conveyed to the lime stone accumulation area, so that the lime stone material with smaller volume, the soil, the impurities and the lime stone with larger volume can be prevented from entering the crusher to influence the crushing efficiency.

The driving motor 4, the conveyor belt and the crusher used in the present utility model are all of the prior art, and therefore the structure and principle of the first motor 41, the conveyor belt and the crusher are not described herein.

It should be noted that the foregoing embodiments are merely preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model, but are not intended to limit the scope of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions described in the foregoing embodiments may be modified or some or all of the technical features may be replaced, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model, that is, the technical problems solved by the present utility model are still consistent with the main design concept and spirit of the present utility model, and all technical solutions are included in the scope of the present utility model.

Claims

1. The limestone crushing system feeder is characterized by comprising a feeder shell (1), a first screening device (2) arranged in the feeder shell (1), a second screening device (3) arranged in the feeder shell (1) and butted with the first screening device (2), and two driving motors (4) arranged on the feeder shell (1) and respectively connected with the first screening device (2) and the second screening device (3), wherein scraping plates (5) are arranged in the first screening device (2) and the second screening device (3).

2. A feeder for a limestone crushing system according to claim 1, characterized in that the first screening device (2) comprises a first driving roll shaft (21) rotatably arranged in the feeder housing (1) and connected with a corresponding driving motor (4), and a plurality of first driven roll shafts (22) rotatably arranged in the feeder housing (1) side by side, wherein a first transmission structure (23) is arranged between the first driving roll shaft (21) and the first driven roll shafts (22).

3. A limestone crushing system feeder according to claim 2, characterized in that the first driving roll shaft (21) is provided with a plurality of scrapers (5) in parallel and equidistant along the length direction thereof, the first driven roll shaft (22) is provided with a plurality of scrapers (5) in parallel and equidistant along the length direction thereof, and the scrapers (5) on the first driving roll shaft (21) and the first driven roll shaft (22) are distributed in a staggered manner.

4. A limestone crushing system feeder as claimed in claim 2, characterized in that the first transmission structure (23) comprises a driving sprocket a (24) provided on the first driving roller shaft (21), a driven sprocket a (25) provided on the first driven roller shaft (22), and a transmission chain a (26) interposed between the driving sprocket a (24) and the driven sprocket a (25).

5. A limestone crushing system feeder according to claim 1, characterized in that the second screening device (3) comprises a second driving roll shaft (31) rotatably arranged in the feeder housing (1) and connected with the corresponding driving motor (4), and a plurality of second driven roll shafts (32) rotatably arranged in the feeder housing (1) side by side, wherein a second transmission mechanism (33) is arranged between the second driving roll shaft (31) and the second driven roll shaft (32), and the scraping plates (5) are arranged on the second driving roll shaft (31) and the second driven roll shaft (32).

6. The limestone crushing system feeder according to claim 5, wherein the second driving roll shaft (31) is provided with a plurality of scrapers (5) in a side-by-side equidistant manner along the length direction thereof, the second driven roll shaft (32) is provided with a plurality of scrapers (5) in a side-by-side equidistant manner along the length direction thereof, and the scrapers (5) on the second driving roll shaft (31) and the second driven roll shaft (32) are distributed in a staggered manner.

7. A limestone crushing system feeder as claimed in claim 5, wherein the second transmission mechanism (33) comprises a drive sprocket B (34) provided on the second drive roller (31), a driven sprocket B (35) provided on the second driven roller (32), and a transmission chain B (36) interposed between the drive sprocket B (34) and the driven sprocket B (35).

8. A limestone crushing system feeder according to claim 1, characterized in that a guiding plate (8) is provided in engagement between the first screening device (2) and the second screening device (3).

9. A limestone crushing system feeder according to claim 1, characterized in that one end of the feeder housing (1) is provided with a feeding mechanism (6) adapted to the first screening device (2) for feeding, and the other end is provided with a discharging mechanism (7) adapted to the second screening device (3) for discharging;

the feeding mechanism (6) comprises a feeding hole (61) which is arranged at the top of the front end of the feeder shell (1) and is positioned right above the first screening device (2), and a guide plate (62) which is arranged in the feeding hole (61) and is matched with the first screening device (2).

10. The limestone crushing system feeder of claim 9, wherein the discharging mechanism (7) comprises a screening discharging hole (63) formed in the bottom of the feeder housing (1) and matched with the first screening device (2), a crushing discharging hole (71) formed in the bottom of the feeder housing (1) and matched with the second screening device (3), and a discharging hole (72) formed in the rear end of the feeder housing (1) and matched with the second screening device (3), and a discharging guide plate (73) positioned between the crushing discharging hole (71) and the discharging hole (72) is arranged in the feeder housing (1).