CN216936360U

CN216936360U - Horizontal impact mill

Info

Publication number: CN216936360U
Application number: CN202120564180.1U
Authority: CN
Inventors: 杨会涛; 高瑞山; 代田浩; 李希东; 李文泉
Original assignee: Shandong Fengli Heavy Industry Co ltd
Current assignee: Shandong Fengli Heavy Industry Co ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2022-07-12
Anticipated expiration: 2031-03-18

Abstract

The utility model discloses a horizontal impact mill, which comprises: the grinding chamber is vertically provided with a grinding disc and a grading turbine, one side of the grinding chamber close to the grading turbine is provided with a door body, the outer part of the door body is provided with a discharge channel, the grinding chamber is provided with a feed inlet, and the bottom of the grinding chamber is provided with a slag discharge port; the first power device comprises a first main shaft connected with the center of the grinding disc and a first motor for driving the first main shaft to rotate, and a pair of bearings are sleeved on the first main shaft at intervals; the second power device comprises a second main shaft connected with the center of the grading turbine and a second motor for driving the second main shaft to rotate; a bearing protection assembly comprising: the pair of bearings of the first power device are arranged in the bearing sleeve, lubricating oil is filled at the lower part of the bearing sleeve, and the oil surface is positioned between the outer edge of the bearing and the outer edge of the first main shaft; and the water-cooling pipe is coiled at the lower part of the bearing sleeve and is positioned below the oil surface of the lubricating oil, and the water inlet end and the water outlet end of the water-cooling pipe penetrate through the lower shell. This neotype impact mill simple structure can smash in succession, smashes efficiently.

Description

Horizontal impact mill

Technical Field

The utility model relates to the technical field of crushing equipment. More particularly, the present invention relates to a horizontal impact mill.

Background

Impact mills are crushing devices that crush large solid materials to a desired size and achieve the crushing in the form of high speed impact. The existing impact mill is combined with a classifier to form powder by wind energy at one time, and the traditional screening procedure is cancelled. The hierarchical impact mill is mainly applied to various industries such as mines, building materials, chemical engineering, foods, medicines and the like. For example, a staged impact mill is also used in a deep processing process of the cracked carbon black, but the cracked carbon black is doped with steel wires which cannot be crushed, and fiber components are difficult to crush like food processing. In addition, the grinding disc of the impact mill needs continuous high-strength operation, so that the rotating shaft and the bearing which drive the grinding disc to rotate are easy to reduce the service life due to high temperature, and the working efficiency of the grinding disc is reduced, thereby limiting the application of the grinding disc in high-capacity grinding equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a horizontal impact mill, which improves the working efficiency of a bearing through a bearing protection assembly, thereby improving the adaptability of a grinding disc of the impact mill to high-strength crushing work, prolonging the service life of the bearing, and improving the working efficiency of the impact mill through timely deslagging through a deslagging channel internally provided with a helical blade.

To achieve the objects and other advantages in accordance with the purpose of the utility model, there is provided a horizontal impact mill including:

the grinding chamber is of a horizontally arranged cylindrical structure, a grinding disc and a grading turbine which is arranged opposite to the grinding disc are vertically arranged in the grinding chamber, a circular door body is arranged on one side, close to the grading turbine, of the grinding chamber, a discharging channel which is matched with the grading turbine is arranged outside the door body, a feeding hole is formed in one side face, opposite to the door body, of the grinding chamber, and a slag discharging hole is formed in the bottom of the grinding chamber;

the first power device comprises a first main shaft connected with the center of the grinding disc and a first motor for driving the first main shaft to rotate, and a pair of bearings are sleeved on the first main shaft at intervals;

the second power device comprises a second main shaft connected with the center of the grading turbine and a second motor for driving the second main shaft to rotate, and the center of the grinding disc and the center of the grading turbine are on the same horizontal line;

a bearing protection assembly, comprising:

the bearing sleeve comprises an upper shell, a lower shell and a pair of bearing covers, wherein the upper shell, the lower shell and the pair of bearing covers are detachably connected to form a closed cuboid containing cavity;

and the water-cooling pipe is coiled in the lower shell of the bearing sleeve and is positioned below the oil level of the lubricating oil, the water inlet end and the water outlet end of the water-cooling pipe both extend out of the oil level of the lubricating oil to penetrate through the lower shell to be communicated with the outside, and the part of the lower shell, which is connected with the water inlet end and the water outlet end, is positioned above the oil level of the lubricating oil.

Preferably, the horizontal impact mill further comprises:

the slag discharging channel is internally provided with a third main shaft and a helical blade arranged along the axial direction of the third main shaft, one end of the slag discharging channel is provided with a slag inlet communicated with a slag discharging port at the bottom of the crushing chamber, and the other end of the slag discharging channel is a slag discharging port;

and the third motor is connected with one end of the third main shaft and drives the third main shaft and the helical blade to rotate in the slag discharge channel.

Preferably, horizontal impact mill, smash the room, including cylindrical shell body and with cylindrical shell body coaxial center setting and isometric cylindrical interior casing, form the water-cooling intermediate layer between cylindrical shell body and the cylindrical interior casing, the upper portion and the lower part of cylindrical shell body are equipped with outlet pipe and the inlet tube with the water-cooling intermediate layer intercommunication respectively.

Preferably, the horizontal impact mill further comprises a feeding channel, wherein the upper part of one end of the feeding channel is provided with a feeding hopper, and the other end of the feeding channel is communicated with a feeding hole of the crushing chamber.

Preferably, in the horizontal impact mill, the first main shaft is connected with the first motor through a coupling.

Preferably, the horizontal impact mill, the bearing protection assembly further comprises a pair of support legs, the support legs are located below the lower bearing sleeve shell, the bearing sleeve protection assembly is arranged on the base through the support legs, and the crushing chamber is arranged on the base through the support.

Preferably, the horizontal impact mill, the grinding disc comprises:

the disc is circular, and the center of the disc is connected with the first spindle;

the two groups of hammers are respectively arranged on two side surfaces of the disc, any group of hammers are arranged at equal intervals along the outer circumference of the disc, the two groups of hammers are staggered at equal intervals along the outer circumference of the disc, one end of any hammer is detachably connected on the disc, the other end of the hammer radially extends out of the outer circumference of the disc to form a corrugated edge arranged in parallel to the outer circumference, and the corrugated edge is of a corrugated structure formed by connecting at least 3 sawteeth.

The utility model at least comprises the following beneficial effects:

(1) by arranging the bearing protection assembly, the lubricating oil is arranged in the lower shell of the bearing sleeve, and the water cooling pipe is arranged below the oil surface of the lubricating oil, so that the lubricating oil and the bearing can still normally run below 80 ℃ when the impact mill continuously works, the service life of the bearing is prolonged, the crushing strength adaptability of the impact mill is improved, and the impact mill can adapt to the high-strength crushing requirement of increasing the diameter of the grinding disc and the rotating speed of the grinding disc;

(2) a slag discharge channel is connected to the lower part of a crushing cavity of the impact mill, and a third motor drives a third main shaft and a helical blade to discharge waste which is deposited at the bottom of a crushing chamber and cannot be crushed in time, so that shutdown manual treatment is avoided, the continuity of the work of the impact mill is ensured for large-yield crushed materials, and the work efficiency of the impact mill is obviously improved;

(3) the cylindrical surface main body structure of the crushing chamber is provided with the water cooling interlayer, so that the temperature of the crushing chamber is reduced, the continuous and high-strength crushing working capacity of the impact mill is improved, and the working efficiency is improved.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

FIG. 1 is a schematic structural diagram of a horizontal impact mill according to one embodiment of the present invention, wherein the structure of the crushing cavity, the discharging channel and the slag discharging channel is a schematic sectional structure;

FIG. 2 is a schematic top view of a horizontal impact mill according to one embodiment of the present invention;

FIG. 3 is a front cross-sectional structural view of a bearing protection assembly according to one embodiment of the present invention;

fig. 4 is a schematic structural view of a grinding disc according to an embodiment of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the utility model by referring to the description text.

It should be noted that in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 4, the present invention provides a horizontal impact mill comprising:

the grinding chamber 1 is of a horizontally arranged cylindrical structure, a grinding disc 2 and a grading turbine 3 arranged opposite to the grinding disc are vertically arranged inside the grinding chamber 1, a circular door body 11 is arranged on one side, close to the grading turbine 3, of the grinding chamber 1, a discharge channel 31 matched with the grading turbine 3 is arranged outside the door body 11, a feed inlet is formed in one side face, opposite to the door body 11, of the grinding chamber 1, and a slag discharge port is formed in the bottom of the grinding chamber 1; the millstone and the grading turbine of the horizontal impact mill are vertically arranged and are parallel to the circular side wall of the crushing chamber, and more preferably, the centers of the millstone and the grading turbine are on the same horizontal line with the center of the circular side wall of the crushing chamber;

the first power device comprises a first main shaft 21 connected with the center of the grinding disc 2 and a first motor 22 driving the first main shaft 21 to rotate, wherein a pair of bearings 23 are sleeved on the first main shaft 21 at intervals;

the second power device comprises a second main shaft 32 connected with the center of the grading turbine 3, and a second motor 33 driving the second main shaft 32 to rotate, wherein the center of the grinding disc and the center of the grading turbine are on the same horizontal line; generally speaking, when the diameter of the grinding disc is larger than that of the grading turbine in the actual use process, the rotating speed of the grinding disc and the rotating speed of the grading turbine can adjust corresponding motor parameters according to the actual situation;

a bearing protection assembly, comprising:

the bearing sleeve 4 comprises an upper shell 41, a lower shell 42 and a pair of bearing covers 43, the upper shell 41, the lower shell 42 and the pair of bearing covers 43 are detachably connected to form a closed cuboid containing cavity, the pair of bearings 23 of the first power device are respectively arranged on the inner sides of the pair of bearing covers 43 and are located in the containing cavity, a pair of upper limiting grooves are arranged at two ends of the upper shell 41, a pair of lower limiting grooves are arranged at two ends of the lower shell 42, the upper parts and the lower parts of the pair of bearings 23 are respectively abutted to the pair of upper limiting grooves and the pair of lower limiting grooves, lubricating oil is filled in the lower shell 42, an oil surface 5 of the lubricating oil is located between the outer edge of the bearing 23 and the outer edge of the first main shaft 21 located in the containing cavity, and the lubricating oil can lubricate the bearings, so that the bearings are protected and the working state of the bearings is maintained;

a water-cooling pipe 6 coiled in the lower shell 42 of the bearing sleeve 4 and positioned below the lubricating oil surface 5, wherein the water inlet end 61 and the water outlet end 62 of the water-cooling pipe 6 both extend out of the lubricating oil surface 5 and penetrate through the lower shell 42 to be communicated with the outside, the water inlet end is communicated with an external water pipe, a linked valve can be arranged at the water inlet end and the water outlet end, and the water-cooling pipe is opened or closed simultaneously, and the lower shell is

The part of the connection part 42 with the water inlet end 61 and the water outlet end 62 is positioned above the lubricating oil surface 5.

In the technical scheme, materials enter the crushing chamber 1 from a feeding hole under the action of a fan (not shown in figures 1-2, before the impact mill is used, the discharging direction of the impact mill is connected with the fan so that the materials move according to the direction shown by an arrow in figure 1), a grinding disc rotates under the drive of a first motor to crush the materials, fine materials are conveyed out of the crushing chamber through a grading turbine, a door body and a discharging channel under the drive of the fan, large-particle materials cannot enter the grading turbine to be continuously crushed in the crushing chamber, and the materials which cannot be crushed are deposited at the bottom of the crushing chamber and are discharged from a slag discharging hole, when the slag discharging hole is not communicated with a slag discharging channel, the slag discharging hole can only be provided with a switch to close the slag discharging hole and then is periodically cleaned, and when the slag discharging hole is communicated with the following slag discharging channel, the slag materials can enter the slag discharging channel from the slag discharging hole. The millstone and the grading turbine in the technical scheme are both of the existing structure.

This technical scheme has set up bearing protection subassembly in the bearing department that is used for supporting first main shaft (connecting the mill), sets up lubricating oil in the bearing housing inferior valve body, generally is the thin oil to set up the water-cooled tube below the lubricating oil level, make lubricating oil and bearing still can be in normal operating below 80 ℃ when the impact mill continuous operation, both prolonged the life of bearing, also improved the crushing strength adaptability of impact mill, make the impact mill can adapt to the high strength crushing requirement that increases mill diameter and mill rotational speed. Preferably, a visual window can be arranged on the upper shell of the bearing sleeve, so that the oil level of the lubricating oil in the bearing sleeve can be checked regularly and supplemented timely.

In another technical scheme, the horizontal impact mill further comprises:

a slag discharge channel 7 (the slag discharge channel 7 is in a cross-sectional structure in fig. 1, and the slag discharge channel 7 is in a top view structure in fig. 2), a third spindle and a helical blade (the structure is not shown) arranged along the axial direction of the third spindle are arranged in the slag discharge channel 7, one end of the slag discharge channel 7 is provided with a slag inlet communicated with a slag discharge port at the bottom of the crushing chamber 1, and the other end of the slag discharge channel is a slag discharge port;

and a third motor 71 connected with one end of the third main shaft to drive the third main shaft and the helical blade to rotate in the slag discharge passage.

Among this technical scheme, connect the sediment passageway at the row's cinder notch, drive third main shaft and helical blade through the third motor and make the slag charge that gets into in the sediment passageway and can in time clear up out the crushing chamber in the crushing working process of impact grinding, need not to pause the crushing work of impact mill, so just improved the continuity of impact mill work, also improved the crushing efficiency of mill simultaneously.

In addition, in another technical scheme, the slag inlet of the slag discharging channel is arranged to be in a circular truncated cone shape with a small top and a large bottom, so that material waste caused by non-slag materials entering the slag discharging channel is reduced, in addition, the slag discharging channel can be arranged to be cleaned regularly without being kept working all the time, namely, a controller is arranged to connect the first motor and the third motor, the third motor is started to work for a second preset time after the first motor runs for a first preset time, namely, the slag materials are cleaned after accumulating for the first preset time, and the cleaning time is the second preset time.

In addition, 5mm wide doctor-bar can be set up to helical blade's outward flange, the doctor-bar is the elastomer, perhaps helical blade's outward flange sets up cleans the brush, and doctor-bar and brush can offset with the inner wall of row's sediment passageway to this can improve cleaning efficiency.

In another technical scheme, the horizontal impact mill, crushing chamber 1, including cylindrical shell body and with cylindrical shell body coaxial axis set up and isometric cylindrical interior casing, form water-cooling intermediate layer 12 between cylindrical shell body and the cylindrical interior casing, the upper portion and the lower part of cylindrical shell body are equipped with outlet pipe 13 and inlet tube 14 with water-cooling intermediate layer intercommunication respectively.

The door body of the grinding chamber and the circular side wall opposite to the door body are not provided with the water cooling interlayers, and the water cooling interlayers are only arranged on the circumferential surface of the grinding chamber and enter and exit from the lower part and the upper part, so that the temperature in the grinding cavity can be reduced, and the influence of high temperature caused by grinding work of the grinding disc on the grinding disc and materials is reduced.

More preferably, a spiral partition plate can be arranged in the water-cooling interlayer, namely, a horizontal spiral partition plate (extending from the door body of the crushing chamber to the other circular side face) along the outer side of the inner shell is arranged between the outer shell and the inner shell.

In another technical scheme, the horizontal impact mill further comprises a feeding channel 8, the upper part of one end of the feeding channel 8 is provided with a feeding hopper 81, and the other end of the feeding channel 8 is communicated with a feeding hole of the crushing chamber 1. The material enters the crushing chamber from the feeding channel through the feeding hole under the action of the fan.

In another technical solution, in the horizontal impact mill, the first spindle 21 is connected with the first motor 22 through the coupling 24.

In another technical scheme, the horizontal impact mill further comprises a pair of support legs positioned below the lower bearing sleeve shell, the bearing sleeve protection assembly is arranged on the base 9 through the support legs, and the crushing chamber is arranged on the base 9 through a support. The first motor and the coupling are also arranged on the base, and the second motor can be arranged below the discharging channel.

In another technical solution, in the horizontal impact mill, the grinding disc 2 includes:

a disk 201 having a circular shape, the center of the disk 201 being connected to the first spindle 21;

two groups of hammers 202 are respectively arranged on two side surfaces of the disk 201 (as shown in fig. 1 and 4), any group of hammers is arranged at equal intervals along the outer circumference of the disk, and the two groups of hammers are staggered at equal intervals along the outer circumference of the disk (in fig. 4, one group is a front group and the other group is a back group, the whole group is represented by a solid line), one end of any hammer is detachably connected to the disk, the other end of the hammer extends out of the outer circumference of the disk along the radial direction of the disk to form a corrugated edge arranged parallel to the outer circumference, and the corrugated edge is a corrugated structure formed by connecting at least 3 saw teeth. Preferably, the top line of any sawtooth is coincident with the radius of the disk, i.e. the sawtooth is in an isosceles triangle structure, and the high line of the bottom is arranged along the radial direction of the disk.

In another technical solution, the horizontal impact mill, the staged turbine comprises:

the center of the disc is connected with the output end of the second main shaft;

the turbine blade is a horizontally arranged cylindrical structure, one end of the turbine blade is connected with the outer circumference of the disc, the other end of the turbine blade extends to the crushing chamber door body to be communicated with the discharge channel, and the turbine blade is formed by a plurality of blades which are arranged at equal intervals along the circumferential side wall to form a cylindrical channel which is communicated with the inside and the outside of the circumferential side wall. The material gets into the inboard from the outside of turbine blade under the fan effect promptly, gets into discharging channel through the door body again, and the disc is solid construction, and the material can not pass through. In the technical scheme, one end of the second main shaft is connected with the disc, and the other end of the second main shaft penetrates out of the door body and is provided with the grading bearing sleeve which is positioned in the discharging channel, but a water-cooling pipe is not required to be arranged in the grading bearing sleeve, and the grading bearing sleeve is of a conventional bearing sleeve structure.

While embodiments of the utility model have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the utility model pertains, and further modifications may readily be made by those skilled in the art, it being understood that the utility model is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. Horizontal impact mill, its characterized in that includes:

a bearing protection assembly, comprising:

2. The horizontal impact mill of claim 1, further comprising:

3. The horizontal impact mill according to claim 1, wherein the crushing chamber comprises a cylindrical outer shell and a cylindrical inner shell coaxially arranged with the cylindrical outer shell and having the same length, a water-cooling interlayer is formed between the cylindrical outer shell and the cylindrical inner shell, and the upper part and the lower part of the cylindrical outer shell are respectively provided with a water outlet pipe and a water inlet pipe which are communicated with the water-cooling interlayer.

4. A horizontal impact mill according to claim 1, further comprising a feed channel, one end of which is provided at an upper portion thereof with a feed hopper, and the other end of the feed channel is communicated with the feed port of the pulverizing chamber.

5. The horizontal impact mill of claim 1, wherein the first spindle is coupled to the first motor by a coupling.

6. The horizontal impact mill of claim 1, wherein the bearing protection assembly further comprises a pair of legs positioned below the lower housing of the bearing housing, the bearing housing protection assembly being disposed on the base by the legs, the grinding chamber being disposed on the base by the brackets.

7. The horizontal impact mill of claim 1, wherein the grinding disc comprises: