CN214107338U - Crushing and grading device - Google Patents

Abstract

The utility model provides a crushing and grading device, which comprises a working bin, a crushing unit, a grading unit, a feeding pipe and a discharging pipe; the crushing unit comprises a crushing motor, a main shaft and a crushing assembly, the crushing motor is connected with at least part of the main shaft positioned in the working bin, the main shaft in the working bin is sleeved with the crushing assembly, and a feeding port connected with a feeding pipe is formed in the main shaft; the grading unit comprises an air inducing device, a grading motor, a grading shaft and a grading element, the grading motor is connected with the grading shaft, the grading element in the working bin is arranged on the grading shaft, and a discharge port connected with a discharge pipe is arranged on the working bin corresponding to the grading element. The utility model discloses a crushing unit and grading unit are located a working bin, and are small, save area.

Description

Crushing and grading device

Technical Field

The utility model relates to a comminuted field, more specifically relates to a smash grading plant.

Background

At present, the domestic existing crushing and grading system mainly comprises a crusher, a grader, a high-pressure draught fan and the like, wherein the crusher, the grader and the high-pressure draught fan are sequentially connected, material conveying is completed by negative pressure suction and conveying of the high-pressure draught fan, during work, materials fed into the crusher are crushed and then conveyed into the grader under the action of the attraction of the high-pressure draught fan, the grader grades the crushed materials into coarse materials and fine materials, the fine materials are discharged through a fine material discharge port and a discharge pipe of the grader under the action of the attraction of the high-pressure draught fan, and the coarse materials are discharged out of the grader through a coarse material outlet.

However, the system adopts the existing crusher and grader, and the two independent devices result in larger system volume and occupied area.

SUMMERY OF THE UTILITY MODEL

The present invention provides a crushing and grading device that overcomes or at least partially solves the above problems.

In a first aspect, the utility model provides a crushing and grading device, which comprises a working bin, a crushing unit, a grading unit, a feeding pipe and a discharging pipe;

the crushing unit comprises a crushing motor, a main shaft and a crushing assembly, the crushing motor is connected with the main shaft, at least part of the main shaft is positioned in the working bin, the crushing assembly is sleeved on the main shaft positioned in the working bin, a feeding port is formed in the position, corresponding to the crushing assembly, of the working bin, and the feeding pipe is connected with the feeding port;

the grading unit comprises an air inducing device, a grading motor, a grading shaft and a grading element, the grading motor is connected with the grading shaft, the grading element is installed on the grading shaft and located in the working bin, a discharge hole is formed in the position, corresponding to the grading element, of the working bin, and the air inducing device is connected with the discharge hole through a discharge pipe.

Preferably, the height of the axial center of the classifying shaft is greater than the highest height of the crushing assembly.

Preferably, the surface of rotation defined by said size reduction assembly is perpendicular to the surface of rotation defined by said classifying element.

Preferably, crushing unit includes carousel and two at least crushing boards, the carousel suit is in on the main shaft, two at least crushing boards are installed on the carousel and in circumference distributes on the carousel, just two at least crushing boards face grading component sets up.

Preferably, the part of the inner wall of the working bin, which corresponds to the rotary disc, is an arc surface, and the rotary disc is in clearance fit with the arc surface.

Preferably, the classifying element is a classifying wheel.

Preferably, the grading shaft is located in a material leading-out sleeve, a discharge port on the working bin is communicated with the interior of the leading-out sleeve, a material leading-out port is arranged on the material leading-out sleeve located outside the working bin, and the air inducing device is connected with the material leading-out port.

Preferably, the method further comprises the following steps: a pulse dust collector and a cyclone collector;

the induced draft device is connected with the discharge port sequentially through the pulse dust collector and the cyclone collector.

According to the above technical scheme, crushing unit and the grading unit of smashing grading plant are located a working bin, and small saves area.

Drawings

Fig. 1 is a schematic structural view of a pulverizing and classifying device according to an embodiment of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Fig. 1 is a schematic structural view of a pulverizing and classifying device according to an embodiment of the present invention.

A crushing and classifying device as shown in fig. 1, comprising a working bin 25, a crushing unit 24, a classifying unit 21, a feeding pipe 23 and a discharging pipe 22;

the crushing unit 24 comprises a crushing motor, a main shaft 72 and a crushing assembly, the crushing motor is connected with the main shaft 72, at least part of the main shaft 72 is positioned in the working bin 25, the crushing assembly is sleeved on the main shaft 72 positioned in the working bin 25, a feeding port is arranged on the working bin 25 corresponding to the crushing assembly, and the feeding pipe 23 is connected with the feeding port;

grading unit 21 includes induced air device, hierarchical motor 211, hierarchical axle 212 and hierarchical component 213, hierarchical motor 211 is connected hierarchical axle 212, hierarchical component 213 is installed hierarchical axle 212 is last just hierarchical component 213 is located in the working bin 25, on the working bin 25 with the position that hierarchical component 213 corresponds is equipped with the bin outlet, the induced air device passes through the blow-off pipe 22 is connected the bin outlet.

The embodiment of the utility model provides a crushing grading plant during operation, open induced air device, crushing motor and hierarchical motor 211, it is rotatory that crushing motor passes through main shaft 72 and drives crushing unit, hierarchical motor 211 drives hierarchical component 213 through hierarchical axle 212 and rotates. The material to be crushed enters the working bin 25 through the feeding port and the feeding pipe 23 and then is crushed through the crushing assembly, the crushed material is conveyed into the classifying element 213 under the action of the gravity of the air inducing device to be classified into fine material and coarse material, the fine material is discharged from the discharging port and the discharging pipe of the working bin 25, and the coarse material falls back to the crushing unit 24 to be continuously crushed. The embodiment of the utility model provides a crushing unit 24 and the grading unit 21 of smashing grading plant are located a working bin 25, and are small, save area.

As shown in figure 1, the upper part of the main shaft 72 penetrates through the working chamber 25 and is connected with the upper end surface and the bottom surface of the working chamber 25 through a bearing, the lower part of the main shaft is connected with a crushing motor outside the working chamber 25, the front end part of the grading shaft 212 provided with the grading element 213 is positioned in the working chamber 25, the rear end part of the grading shaft is positioned outside the working chamber 25, and the grading motor 211 is connected with the tail end of the grading shaft 212 outside the working chamber 25, so that the structure can save the volume of the working chamber 25 and the floor area.

The induced draft device can be an induced draft fan.

If the height of the axis of the classifying shaft 212 is equal to or lower than the maximum height of the pulverizing assembly, the pulverized material may be partially blocked by the components of the pulverizing unit 24 so that the pulverized material cannot completely enter the classifying unit 21, and based on this, as a preferred embodiment, the height of the axis of the classifying shaft 212 is greater than the maximum height of the pulverizing assembly, the material pulverized to a predetermined particle size can completely move upward to enter the classifying unit 21 without being blocked by the pulverizing unit 24, and the entire pulverized material is classified.

The gravitation of the air inducing device has a certain matching relation with the particle size of the material, namely the gravitation can only suck animal material particles when the particle size of the material reaches the preset particle size. If the included angle between the rotating surface formed by the crushing assembly and the rotating surface formed by the classifying element 213 is not 90 degrees, the material is thrown into the classifying element 213 under the action of centrifugal force, so that the material enters the classifying unit 21 in advance when not crushed to the preset particle size, and the produced material cannot meet the requirement of the preset particle size.

As shown in fig. 1, as a preferred embodiment, the pulverizing assembly includes a rotating disc 243 and at least two pulverizing plates 242, the rotating disc 243 is sleeved on the main shaft 72, the at least two pulverizing plates 242 are mounted on the rotating disc 243 and circumferentially distributed on the rotating disc 243, and the at least two pulverizing plates 242 are arranged facing the classifying element 213, so that the material at each angle on the rotating disc 243 can be pulverized, and thus the material can be sufficiently pulverized. The at least two crushing plates 242 are installed at the outer edge of the rotating plate 243 so that all the materials on the rotating plate 243 can be crushed.

As a preferred embodiment, the portion of the inner wall of the working bin 25 corresponding to the rotating disc 243 is an arc surface, the rotating disc 243 and the arc surface are in clearance fit, and the rotating disc 243 can stop the material, so as to prevent the material from falling into the space below the rotating disc 243 in the working bin 25, thereby ensuring continuous pulverization of the material.

As a preferred embodiment, the inner cavity of the working chamber 25 is a cylindrical cavity, and particularly, the working chamber 25 can be a cylinder. An annular liner 241 may also be disposed between the inner wall of the working chamber 25 and the rotating disk 243 to protect the inner wall of the working chamber 25 from abrasion, and at this time, the rotating disk 243 and the liner 241 are in clearance fit.

As shown in fig. 1, the classification element 213 is a classification wheel.

If the induced draft device direct connection work bin 25 on the bin outlet, can be owing to need installation connecting piece etc. to occupy the space of work bin 25 lateral wall, and then lead to the increase of working volume, on this basis, as a preferred embodiment, hierarchical axle 212 is located a material and draws forth the cover, bin outlet on the work bin 25 with draw forth the inside intercommunication of cover, be located the material of work bin 25 outside is drawn forth and is sheathe in and is equipped with the material and draw forth the mouth, the blow off pipe 22 is connected the material is drawn forth the mouth. The material discharging pipe 22 with the structure is connected with the material outlet on the outlet sleeve, and does not need to occupy the space on the side wall of the working bin 25, thereby reducing the volume of the working bin 25.

In this embodiment, the classifying shaft 212 is installed on the bearing seat, and a protective sleeve is preferably installed outside the classifying shaft 212 to prevent the material from being stuck on the classifying shaft 212 to affect the output of the material, and simultaneously prevent the material from polluting the classifying shaft 212 to make it unable to work normally. If the grading axle is shorter, the length of bearing frame is enough to protect the grading axle, and the bearing frame can regard as the protective sheath to use simultaneously, if the grading axle is longer, the length of bearing frame is not enough to protect the grading axle, but the isolated protective sheath of additional.

The fine material discharged from the working bin contains air containing dust, and the method further comprises the following steps of: a pulse dust collector and a cyclone collector;

the induced draft device is connected with the discharge port sequentially through the pulse dust collector and the cyclone collector. The embodiment of the utility model provides a pass through cyclone separates the fine material and the air that contains the dust, and the fine material after separating the dust by cyclone discharges, and the air that contains the dust is input pulse dust collector, pulse dust collector collects the dust and obtains clean air and discharge to not only guarantee the purity of output fine material, still prevent air pollution.

It should be noted that, in the components of the device of the present invention, the components are logically divided according to the functions to be realized, however, the present invention is not limited thereto, and the components may be divided or combined again as needed, for example, some components may be combined into a single component, or some components may be further decomposed into more subcomponents.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware.

The above embodiments are only suitable for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.

Claims (8)

1. A crushing and grading device is characterized by comprising a working bin, a crushing unit, a grading unit, a feeding pipe and a discharging pipe;

the crushing unit comprises a crushing motor, a main shaft and a crushing assembly, the crushing motor is connected with the main shaft, at least part of the main shaft is positioned in the working bin, the crushing assembly is sleeved on the main shaft positioned in the working bin, a feeding port is formed in the position, corresponding to the crushing assembly, of the working bin, and the feeding pipe is connected with the feeding port;

the grading unit comprises an air inducing device, a grading motor, a grading shaft and a grading element, the grading motor is connected with the grading shaft, the grading element is installed on the grading shaft and located in the working bin, a discharge hole is formed in the position, corresponding to the grading element, of the working bin, and the air inducing device is connected with the discharge hole through a discharge pipe.

2. The comminution grading device of claim 1 wherein the height of the axial center of the grading shaft is greater than the highest height of the comminution assembly.

3. The comminution grading device of claim 1 wherein the surface of rotation defined by the comminution assembly and the surface of rotation defined by the grading element are perpendicular.

4. The pulverizing and classifying device according to claim 1, wherein the pulverizing assembly includes a rotating disk which is fitted over the main shaft, and at least two pulverizing plates which are mounted on the rotating disk and circumferentially distributed on the rotating disk and are disposed facing the classifying element.

5. The crushing and grading device according to claim 4, wherein the inner wall of the working bin is provided with a circular arc surface corresponding to the rotary disc, and the rotary disc and the circular arc surface are in clearance fit.

6. The comminution and classification device of claim 1 wherein the classification element is a classification wheel.

7. The crushing and grading device according to claim 1, wherein the grading shaft is located in a material outlet sleeve, the discharge port of the working bin is communicated with the inside of the material outlet sleeve, a material outlet is provided in the material outlet sleeve located outside the working bin, and the air inducing device is connected with the material outlet.

8. The crushing and classifying device according to claim 1, further comprising: a pulse dust collector and a cyclone collector;

the induced draft device is connected with the discharge port sequentially through the pulse dust collector and the cyclone collector.

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