CN115888941A

CN115888941A - Crushing system and crushing method thereof

Info

Publication number: CN115888941A
Application number: CN202211279913.2A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Quzhou Hengrui Machinery Co ltd
Current assignee: Yinan County Jintai Machinery Co ltd
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-04-04
Anticipated expiration: 2042-10-19
Also published as: CN115888941B

Abstract

The invention belongs to the technical field of crushing systems, and particularly relates to a crushing system which comprises a crushing device, wherein the crushing device comprises a crushing box, and a feed inlet is formed in the crushing box; the crushing wheel is arranged in the crushing box; the grinding sieve plates are arranged in two blocks, the two grinding plates are relatively obliquely arranged in the grinding box and are positioned at the bottom of the grinding wheel, and holes for crushed materials to pass through are formed in the grinding sieve plates; the grinding unit is arranged on the grinding sieve plate and can move on the grinding sieve plate; the driving mechanism is arranged on the crushing box and used for driving the grinding unit to grind on the grinding sieve plate; the grinding unit can at least partially penetrate into the hole of the grinding sieve plate to dredge the hole; the beneficial effects of the invention are as follows: the mediation is convenient, and the mediation is effectual, and smashes the effect preferred.

Description

Crushing system and crushing method thereof

Technical Field

The invention relates to the technical field of crushing systems, in particular to a crushing system and a crushing method thereof.

Background

In various industrial applications, a material crushing operation is often required. For example, in a coal powder processing plant, a belt conveyor is often used to convey coal blocks to be pulverized from one location to a pulverizing device to reduce the coal blocks to be pulverized into desired coal powder; in grain processing plants, various conveyors are often used to convey grain particles such as corn kernels and the like as materials, and then the grain particles are crushed; for another example, in a system for preparing ethanol using cassava, a belt conveyor is often used to perform a conveying operation of granular or lump cassava materials, thereby crushing the lump cassava into finer cassava powder for a subsequent process; in addition, a crushing system is also commonly used in mining and manufacturing of ores and mineral powder;

in the existing crushing system, crushing is usually directly carried out through a crushing roller, then a sieve plate or a screen is arranged at the bottom of the crushing roller, after crushing, fine powder crushed aggregates meeting requirements pass through the sieve plate to be discharged, materials which are not crushed and qualified cannot pass through the sieve plate to be left on the sieve plate, then materials on the sieve plate are fed again to be crushed again, and meanwhile, the sieve plate is usually dredged in a mode of knocking and vibrating the sieve plate; but because the crushing precision of crushing wheel is unanimous, smash tiny material again and can not reach fine crushing effect, it is not good enough to smash the effect, and dredges the effect through the mode of strikeing the sieve and carrying out the mediation and is not ideal.

Disclosure of Invention

In view of the shortcomings of the prior art, the present invention provides a pulverizing system and a pulverizing method thereof, so as to solve the problems in the background art.

In view of the above, the present invention provides a pulverizing system, which comprises a pulverizing device, the pulverizing device comprising a pulverizing box, on which a feeding port is opened; the crushing wheel is arranged in the crushing box; the grinding sieve plates are arranged in two, are relatively obliquely arranged in the grinding box and are positioned at the bottom of the grinding wheel, and are provided with holes for crushed materials to pass through; the grinding unit is arranged on the grinding sieve plate and can move on the grinding sieve plate; the driving mechanism is arranged on the crushing box and used for driving the grinding unit to grind on the grinding sieve plate; the grinding unit can at least partially penetrate into the holes of the grinding sieve plate to dredge the holes.

In the above technical solution, further, the driving mechanism includes a rotating shaft vertically installed inside the crushing box, and a threaded section is provided thereon; the transmission conical gear is arranged at the top of the crushing box, and the rotating shaft upwards penetrates through the crushing box and is connected with the transmission conical gear; the cross rod is arranged at the top of the crushing box through an installation frame, and a motor for controlling the rotation of the cross rod is arranged on one side of the installation frame; the incomplete bevel gears are fixed on the cross bar and are arranged in two numbers, and the two incomplete bevel gears are arranged in central symmetry and are in meshing transmission with the transmission bevel gear; the screw sleeve is sleeved on the rotating shaft in a threaded manner; and two ends of the connecting rod are respectively hinged with the threaded sleeve and the grinding unit.

In the above technical solution, further, the grinding unit includes a grinding plate, and a cavity is formed at the top of the grinding plate; an action unit arranged inside the grinding plate; the dredging head is embedded at the inner bottom of the grinding plate and can penetrate out of the grinding plate downwards under the control of the action mechanism; the reset groove is formed in one side, located on the dredging head, of the grinding plate; the limiting ring is positioned in the reset groove and fixed outside the dredging head; and the reset spring is positioned in the reset groove and positioned at the bottom of the limiting ring.

In the above technical solution, further, the action unit includes an elastic airbag, which is disposed in the cavity and connected to the external first air supply mechanism; the strut is connected with the elastic air bag and the dredging head; the elastic air bag is inflated to drive the support rod and the dredging head to move downwards to penetrate out the grinding plate, and the state of the dredging head is divided into two states according to the inflation quantity of the elastic air bag

In a standing state, the dredging head is completely positioned in the grinding plate;

in the dredging state, most of the dredging head is positioned at the bottom of the grinding plate; and

in a grinding state, a small part of the dredging head penetrates out of the grinding plate; under the grinding state, the dredging head can be matched with the grinding plate to carry out grinding work.

In the above technical solution, further, the dredging head includes a cylinder body, a cavity is provided therein, and exhaust ports are provided on both sides of the bottom thereof; the exhaust pipe is horizontally fixed in the cylinder, the support rod is of a hollow structure, one end of the support rod penetrates into the cylinder downwards to be connected with the exhaust pipe, the support rod is communicated with the elastic air bag and the exhaust pipe, and a first air valve is arranged at the top of the support rod; the two first air blowing holes are arranged on the exhaust pipe in a centrosymmetric manner, and air blown out from the first air blowing holes can enable the cylinder to rotate; two second air blowing holes are formed, the centers of the two air blowing holes are symmetrically arranged on the exhaust pipe, and the second air blowing holes and the first air blowing holes are symmetrically arranged; the second air valve is correspondingly arranged at the first air blowing hole and the second air blowing hole and is used for opening and closing the first air blowing hole and the second air blowing hole; and when the second air valve on the first air blowing hole is opened, the second air valve on the second air blowing hole is closed, and when the second air valve on the second air blowing hole is opened, the second air valve on the first air blowing hole is closed.

In the above technical scheme, further, a grinding wall is arranged at the bottom of the cylinder, a spiral protrusion is arranged on the side wall of the cylinder, and a sealing assembly is arranged at the joint of the support rod and the exhaust pipe.

In the above technical solution, further, the grinding unit further includes a grinding mechanism, and the grinding mechanism includes a connecting plate fixed to the supporting rod; the lower abutting bulge is fixed on the connecting plate; the movable frame is slidably arranged on the top wall in the cavity of the grinding plate through a slide rail; the upper abutting bulge is fixed at the bottom of the movable frame and can be pushed downwards to move the lower abutting bulge; the telescopic air bag is arranged on one side of the movable frame, is connected with the movable frame and is connected with an external second air supply mechanism.

In the above technical solution, the airbag further comprises a control unit, wherein the control unit comprises a first controller, which is used for controlling the first air supply mechanism and driving the first air supply mechanism to supply air or exhaust air to the elastic airbag; the second controller is used for controlling the second air supply mechanism and driving the second air supply mechanism to supply air or exhaust air to the telescopic air bag; the first controller is connected with the second controller, and the working modes of the first controller and the second controller comprise an online mode and a disconnection mode;

the first controller and the second controller run independently and control the first air supply mechanism and the second air supply mechanism to work in opposite states, namely one supplies air and the other exhausts air;

the on-line mode is adapted to the grinding state of the dredging head, and the first controller and the second controller are operated on line at the moment and control the first air supply mechanism and the second air supply mechanism to work in the same state.

A crushing method is suitable for the crushing system and comprises the following steps:

s1, crushing: starting the grinding wheel to rotate, conveying the materials from the feeding hole, carrying out grinding work through the grinding wheel, enabling the ground materials to fall onto the grinding sieve plate, enabling the materials which are ground completely to pass through the grinding sieve plate to be discharged, and enabling the materials which are not ground completely to be incapable of passing through the grinding sieve plate and to be left on the grinding sieve plate;

s2, grinding: and starting the driving mechanism to drive the grinding plate to move back and forth on the grinding sieve plate, grinding and crushing incompletely-crushed materials on the grinding sieve plate, continuously crushing the incompletely-crushed materials into small particles until the small particles penetrate through the grinding sieve plate, and discharging the materials penetrating through the grinding sieve plate from the bottom of the grinding box.

In the above technical solution, further, a dredging and grinding step is further included between steps S1 and S2, which specifically includes the following steps:

p1, multiple crushing: the on-line mode is started to control the dredging head on the grinding sieve plate to grind and crush, the control unit controls and drives the first air supply mechanism and the second air supply mechanism to simultaneously supply air to the elastic air bag and the telescopic air bag, the first air valve is opened, the dredging head is driven to rotate by continuous air supply of the first air supply mechanism, meanwhile, the second air supply mechanism supplies air to drive the telescopic air bag to extend to push the upper butt joint bulge to contact with the lower butt joint bulge to drive the dredging head to move downwards, the downward movement while the dredging head rotates is realized to impact and crush the material and rotate and grind the material, and the crushing work on the grinding sieve plate is carried out; after grinding is finished, controlling a first air pump and a second air pump to simultaneously pump air, closing a first air valve, moving a dredging head upwards to enter a grinding plate, and stopping grinding and crushing; a grinding action is carried out by the action, and the grinding action that the dredging head rotates and descends is realized by repeating the action;

p2 dredging: starting a disconnection mode to work, controlling the first gas supply mechanism and the second gas supply mechanism to carry out independent control and ensuring that the first gas supply mechanism and the second gas supply mechanism work under opposite working conditions, closing the first gas valve, firstly inflating the elastic gas bag, pumping out gas in the telescopic gas bag, keeping the upper abutting bulge away from the lower abutting bulge at the moment, expanding the elastic gas bag to drive the dredging head to move downwards to penetrate out of the grinding plate and enter the hole of the grinding sieve plate for dredging, and opening the first gas valve to further dredge through the injection of the gas after the dredging head descends to the lowest end; after the dredging action is finished, controlling the first air supply mechanism to pump out air in the elastic air bag, controlling the second air supply mechanism to inflate the telescopic air bag, closing the first air valve at the moment, driving the dredging head to move upwards by pumping air to the elastic air bag, and simultaneously inflating the telescopic air bag to drive the dredging head to move downwards by understanding the lower abutting bulge through the upper abutting bulge top, so that the dredging head repeatedly moves up and down under one action, and the grinding sieve plate is dredged;

p3: and circularly repeating the step P1 and the step P2.

The invention has the beneficial effects that:

1. the dredging head is driven to move downwards by controlling the contraction of the elastic air bag, so that the dredging head can be controlled to perform the switching between the grinding and dredging functions, and the function of realizing both grinding and dredging of the grinding sieve plate is achieved; can insert the hole inside of grinding the sieve when the mediation and dredge the hole on the grinding sieve to avoid blockking up to the hole is directly dredged to flexible mode, and it is effectual to dredge, avoids the condition appearance that the mediation of beating through external force leads to the sieve to damage.

2. The dredging head is driven to automatically rotate through the input of gas in the elastic air bag, the dredging head is driven to enter the holes of the grinding sieve plate in a rotating mode during dredging, the dredging is convenient and fast, the dredging effect on the sieve plate is further improved, and the materials blocked in the holes can be crushed while the holes are dredged in a spiral rotating and descending mode; meanwhile, the gas is discharged by matching with the rotation of the dredging head, the dredging is carried out by assisting the blowing of high-pressure gas, the inner wall of the hole is cleaned, and the phenomenon that the material is still adsorbed on the inner wall of the hole after dredging is avoided; and when grinding through dredging the head, can cooperate and grind with pivoted dredging the head, and switch the rotation direction of dredging the head after grinding a period, realize that the different supplementary grinding that turn to is smashed. The crushing effect of the materials is further improved; meanwhile, the dredging head can blow air to the lateral lower part during rotary grinding, the ground powder is blown out of a concentrated material pile, the ground material is separated from the grinding plate, large powder which cannot be blown out is left for grinding and grinding, and the blockage of a screen caused by pushing of the powder is avoided.

3. Through the arrangement of the grinding mechanism, the dredging head is controlled to move up and down in the grinding process in a gas supply and exhaust mode of the telescopic air bag, and the materials are further impacted and crushed through the up-and-down movement of the dredging head while the grinding plate moves horizontally for grinding and crushing, so that the crushing effect is improved; through the mode with the air feed control dredging head carry out elevating movement, smash with rotatory kibbling more than the lower impact crushing mode on the basis, further smash the material through the cooperation of three kinds of grinding crushing modes, increase substantially crushing effect.

4. The air supply of the elastic air bag and the telescopic air bag in the grinding plate is controlled by the corresponding first air supply mechanism and the second air supply mechanism, the corresponding control mode can be selected on the controller according to the working state required by the dredging head, and the opposite air supply or air exhaust working mode is carried out when the disconnection mode is adopted, so that the dredging head can reciprocate up and down to dredge; when the on-line mode is adopted, the dredging head can be driven to move up and down in a rotating mode to grind the materials; different air supply modes can be selected according to different working states to work, the control is convenient and fast, and the stability is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a crushing box according to an embodiment of the present invention;

FIG. 2 is a schematic view of a polishing plate according to an embodiment of the present invention;

FIG. 3 is a schematic view of the mounting of the dredging head in an embodiment of the present invention;

FIG. 4 is a schematic structural view of a dredging head according to an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a dredging head in an embodiment of the present invention;

FIG. 6 is a schematic view of the attachment of a connection plate according to an embodiment of the present invention;

FIG. 7 is a schematic view of a polishing mechanism according to an embodiment of the present invention;

labeled as:

1. a crushing box; 11. a feed inlet; 12. a grinding wheel; 13. grinding the sieve plate;

2. a drive mechanism; 21. a rotating shaft; 22. a transmission bevel gear; 23. a cross bar; 24. an incomplete bevel gear; 25. a threaded sleeve; 26. a connecting rod;

3. a grinding unit; 31. a grinding plate; 32. dredging the head; 321. a barrel; 322. an exhaust port; 323. an exhaust pipe; 324. a first blow hole; 325. a second gas blowing hole; 326. a second air valve; 327. grinding the wall; 328. a spiral protrusion; 329. a seal assembly; 33. a reset groove; 34. a limiting ring; 35. a return spring; 36. an elastic air bag; 37. a strut; 38. a first air valve; 39. a grinding mechanism; 391. a connecting plate; 392. a lower abutment projection; 393. a movable frame; 394. an upper abutment projection; 395. a telescopic air bag;

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

In the description of the present application, it is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. For convenience of description, the dimensions of the various features shown in the drawings are not necessarily drawn to scale. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It should be noted that in the description of the present application, the orientation or positional relationship indicated by the terms such as "front, back, up, down, left, right", "lateral, vertical, horizontal" and "top, bottom" and the like are generally based on the orientation or positional relationship shown in the drawings for convenience of description and simplicity of description only, and in the case of not making a reverse description, these orientation terms do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

It should be noted that, in the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Example 1

As shown in fig. 1 to fig. 3, the present embodiment discloses a crushing system, which in the specific embodiment of the present invention comprises a crushing device, wherein the crushing device comprises a crushing box 1, on which a feeding port 11 is provided, which is configured to be used for feeding materials such as ore and grain, and in other embodiments, a cover plate can be provided to avoid the materials from splashing during crushing; the crushing wheels 12 are arranged in the crushing box 1, and two pairs of crushing wheels are symmetrically arranged in the crushing box; the grinding sieve plates 13 are arranged in two, the two grinding plates 31 are oppositely and obliquely arranged in the grinding box 1 and are positioned at the bottom of the grinding wheel 12, and holes for the ground materials to pass through are formed in the grinding sieve plates 13; a grinding unit 3 provided on the grinding sieve plate 13 and movable on the grinding sieve plate 13; the driving mechanism 2 is arranged on the crushing box 1 and is used for driving the grinding unit 3 to grind on the grinding sieve plate 13; the grinding unit 3 can at least partially penetrate into the hole of the grinding sieve plate 13 to dredge the hole.

In this embodiment, the driving mechanism 2 comprises a rotating shaft 21 vertically installed inside the pulverizing box 1, on which a threaded section is provided; the transmission bevel gear 22 is arranged at the top of the crushing box 1, and the rotating shaft 21 penetrates out of the crushing box 1 upwards to be connected with the transmission bevel gear 22; the cross rod 23 is arranged at the top of the crushing box 1 through an installation frame, and a motor for controlling the rotation of the cross rod 23 is arranged on one side of the installation frame; the incomplete bevel gears 24 are fixed on the cross bar 23 and are arranged in two, and the two incomplete bevel gears 24 are arranged in central symmetry and are in meshing transmission with the transmission bevel gear 22; the screw sleeve 25 is sleeved on the rotating shaft 21 in a threaded manner; and the two ends of the connecting rod 26 are respectively hinged with the threaded sleeve 25 and the grinding unit 3.

The driving principle is as follows: the motor drives the cross rod to rotate, and then drives the rotation of two incomplete conical gears, because incomplete conical gear and transmission conical tooth meshing, two incomplete conical gears drive transmission conical gear positive and negative rotation in turn, drive pivot positive and negative rotation in turn promptly, and then drive the swivel nut and reciprocate about the pivot, drive grinding unit (lapping plate) through the transmission of connecting rod and slide on grinding the sieve and carry out the continuation grinding and smashing to the incomplete material of grinding on the grinding sieve.

In this embodiment, the polishing unit 3 includes a polishing plate 31, which has a cavity at the inner top; an operation unit provided inside the polishing plate 31; the dredging head 32 is embedded at the inner bottom of the grinding plate 31 and can penetrate out of the grinding plate 31 downwards under the control of the action mechanism; a reset groove 33 provided on the polishing plate 31 on the side of the dredging head 32; the limiting ring 34 is positioned in the reset groove 33 and fixed outside the dredging head 32, and the limiting ring and the dredging head are connected through a bearing, so that the limiting ring and the dredging head can rotate relatively while lifting along with the dredging head; the reset spring 35 is positioned in the reset groove 33 and is positioned at the bottom of the limiting ring 34; the setting of spacing groove and spacing ring can make the mediation head can't break away from the lapping plate, guarantees the stability of its work, and reset spring is used for driving mediation head automatic re-setting and gets into in the lapping plate.

In this embodiment, the action unit includes an elastic airbag 36, which is disposed in the cavity and connected to the external first air supply mechanism, and the elastic airbag may be a telescopic airbag that can move up and down; a strut 37 connecting the elastic air bag 36 and the dredging head 32; the elastic air bag 36 is inflated to drive the support rod 37 and the dredging head 32 to move downwards to penetrate out of the grinding plate 31, and the state of the dredging head 32 is divided into different states according to the inflation quantity of the elastic air bag 36 (the positions of the dredging head are different along with the change of the inflation quantity)

In a standing state, the dredging head 32 is completely positioned inside the grinding plate 31;

in the dredging state, most of the dredging head 32 is positioned at the bottom of the grinding plate 31; and

in a grinding state, a small part of the dredging head 32 penetrates out of the grinding plate 31; in the grinding state, the dredging head 32 can perform the grinding work in cooperation with the grinding plate 31.

When the action unit works, the first air supply mechanism supplies air to the elastic air bag, along with the continuous entering of air, the elastic air bag slowly swells, the dredging head is driven by the supporting rod to move downwards to penetrate out the grinding plate, when the dredging head part penetrates out the grinding rod (namely, the grinding state), the dredging head can be used as a grinding bulge to grind and grind crushing work, and the dredging head is controlled to move downwards to dredge (namely, the dredging state) after aligning the dredging head to the hole on the grinding screen.

Through the technical scheme, the dredging head is driven to move downwards by controlling the contraction of the elastic air bag, the dredging head can be controlled to carry out the switching between the grinding and dredging functions, and the function of realizing grinding and dredging the grinding sieve plate is achieved; the inside hole to grinding on the sieve that can insert the hole of grinding the sieve when the mediation is dredged avoids blockking up to the hole is dredged directly to flexible mode, and the mediation is effectual, avoids leading to the condition appearance that the sieve damaged through the mediation that external force was strikeed.

Example 2

The present embodiment provides a pulverizing system, which includes the technical features described in the above embodiments.

As shown in fig. 4 to 7, in the present embodiment, the dredging head 32 includes a cylinder 321, a cavity is disposed therein, and air outlets 322 are disposed on two sides of the bottom of the cylinder; the exhaust pipe 323 is horizontally fixed in the cylinder 321, the strut 37 is of a hollow structure, one end of the strut 37 penetrates into the cylinder 321 downwards to be connected with the exhaust pipe 323, the strut 37 is communicated with the elastic airbag 36 and the exhaust pipe 323, and the top of the strut 37 is provided with a first air valve 38; two first blowing holes 324 are arranged, the centers of the two blowing holes are symmetrically arranged on the exhaust pipe 323, and the gas blown out from the first blowing holes 324 can enable the cylinder 321 to rotate; two second air blowing holes 325 are arranged, the centers of the two air blowing holes are symmetrically arranged on the exhaust pipe 323, and the second air blowing holes 325 and the first air blowing holes 324 are symmetrically arranged; the second air valve 326 is correspondingly arranged at the first air blowing hole 324 and the second air blowing hole 325 and is used for opening and closing the first air blowing hole 324 and the second air blowing hole 325; when the second air valve 326 on the first air blowing hole 324 is opened, the second air valve 326 on the second air blowing hole 325 is closed, and when the second air valve 326 on the second air blowing hole 325 is opened, the second air valve 326 on the first air blowing hole 324 is closed; in the present embodiment, two exhaust pipes are provided in order to obtain sufficient rotational power, and a plurality of them may be provided in other embodiments.

When the elastic air bag is inflated, the first air valve is closed firstly, so that the elastic air bag is expanded to drive the dredging head to descend, then the first air valve is opened and air is continuously supplied, at the moment, the elastic air bag keeps the original volume, the air enters the support rod and enters the exhaust pipe, the second air valve on the first air blowing hole is opened, the second air valve on the second air blowing hole is closed, at the moment, the first air blowing hole is used for exhausting air and spraying the air to the inner wall of the cylinder body, the dredging head is driven to rotate by the sprayed air, and the air is sprayed out from the exhaust port at the bottom finally; in addition, in order to realize that the dredging head continuously descends in the rotating process, the dredging head can be lowered by increasing the air supply quantity after the second air valve is opened, so that the air bag with the air supply quantity larger than the air exhaust quantity of the air exhaust port can continuously bulge to drive the dredging head to rotate.

In addition, the second air valve on the first air blowing hole is closed by the accessible, opens the second air valve on the second air blowing hole, realizes that reverse impact force drives dredging head rapid stop rotation or drives dredging head reverse rotation.

According to the technical scheme, the dredging head is driven to automatically rotate through the input of the gas in the elastic air bag, the dredging head is driven to enter the holes of the grinding sieve plate in a rotating mode during dredging, the dredging is convenient and fast, the dredging effect on the sieve plate is further improved, and the materials blocked in the holes can be crushed while the holes are dredged in a spiral rotating and descending mode; meanwhile, the gas is discharged by matching with the rotation of the dredging head, the dredging is carried out by assisting the blowing of high-pressure gas, the inner wall of the hole is cleaned, and the phenomenon that the material is still adsorbed on the inner wall of the hole after dredging is avoided; and when grinding through dredging the head, can cooperate and grind with pivoted dredging the head, and switch dredging the rotation direction of head after grinding a period of time, realize that the different supplementary grinding that turn to is smashed. The crushing effect of the materials is further improved; meanwhile, the dredging head blows air to the lateral lower part during rotary grinding, the ground powder is blown out of a concentrated material pile, the ground material is separated from the grinding plate, large powder which cannot be blown out is left for grinding and grinding, and the blockage of a screen due to pushing of the powder is avoided.

In this embodiment, the bottom of the cylinder 321 is provided with a grinding wall 327, the sidewall of the cylinder 321 is provided with a spiral protrusion 328, and the joint between the strut 37 and the exhaust pipe 323 is provided with a sealing assembly 329.

The arrangement of the spiral protrusion is consistent with the drill bit principle of the perforating machine, so that the rotary dredging head can more easily enter the hole of the grinding sieve plate, the too large stress of the dredging head is avoided, the materials adsorbed on the inner wall of the hole can be crushed, and the dredging effect is improved; the comparatively ripe prior art of seal assembly effect plays the sealed effect between branch and the blast pipe in this application.

In this embodiment, the grinding unit 3 further comprises a grinding mechanism 39, and the grinding mechanism 39 comprises a connecting plate 391 fixed on the supporting rod 37; a lower abutment projection 392 fixed to the connecting plate 391; the movable frame 393 is slidably mounted on the top wall in the cavity of the grinding plate 31 through a slide rail; an upper abutting projection 394 fixed to the bottom of the moving frame 393 and capable of pushing the lower abutting projection 392 downward; the telescopic air bag 395 is arranged on one side of the moving frame 393 and connected with an external second air supply mechanism, so that the elastic cavity is easily damaged due to the up-and-down movement of the supporting rod when the elastic air bag does not act, the telescopic pipe is additionally arranged between the supporting rod and the elastic air bag, and the stable up-and-down movement of the supporting rod and the dredging head is ensured.

At the time of working, the second gas supply mechanism is started to supply gas to the telescopic airbag, the telescopic airbag stretches to push the movable frame to move leftwards along with the input of gas, the upper abutting protrusion is in contact with the lower abutting protrusion and pushes the lower abutting protrusion downwards, the dredging head moves downwards along with the lower abutting protrusion at the time, the gas supply is stopped and the gas pumping work is carried out (the gas supply and the gas pumping work are the same, and the gas pumping work is linked after the gas supply), the telescopic airbag starts to contract, the movable frame is driven to return, the upper abutting protrusion does not abut against the lower abutting protrusion any more, the dredging head moves upwards under the action of the reset spring, and the up-and-down movement of the dredging head during grinding is realized through the gas inflation and gas pumping modes;

according to the technical scheme, through the arrangement of the grinding mechanism, the up-and-down movement of the dredging head during grinding is controlled in a gas supply and air exhaust mode of the telescopic air bag, and the materials are further impacted and crushed through the up-and-down movement of the dredging head while the grinding plate moves horizontally for grinding and crushing, so that the crushing effect is improved; through the mode with the air feed control dredging head carry out elevating movement, smash with rotatory kibbling more than the lower impact crushing mode on the basis, further smash the material through the cooperation of three kinds of grinding crushing modes, increase substantially crushing effect.

Example 3

In this embodiment, the control unit further comprises a first controller, configured to control the first air supply mechanism and drive the first air supply mechanism to supply or evacuate air to the elastic airbag; the second controller is used for controlling the second air supply mechanism and driving the second air supply mechanism to supply air or exhaust air to the telescopic air bag; the first controller is connected with the second controller, and the working modes of the first controller and the second controller comprise an online mode and a disconnection mode; the first air supply mechanism and the second air supply mechanism respectively comprise a first air pump and a second air pump, and the two air pumps are both bidirectional air pumps; and can also comprise a master control terminal for controlling the work of the two controllers.

In a grinding state, an online working mode is started, the two controllers are simultaneously controlled to work by the control terminal, namely, the first air pump and the second air pump are controlled to work the same, the first air pump and the second air pump are controlled by the control unit to supply air to the elastic air bag and the telescopic air bag simultaneously, the first air valve is always in an open state, the dredging head is driven to rotate at the moment, meanwhile, the telescopic air bag extends to push the upper abutting protrusion to be in contact with the lower abutting protrusion to drive the dredging head to move downwards, the dredging head moves downwards while rotating to impact, grind and grind materials, and grinding on the grinding sieve plate is carried out; after grinding is finished, controlling a first air pump and a second air pump to simultaneously pump air, closing a first air valve, moving a dredging head upwards to enter a grinding plate, and stopping grinding and crushing; a grinding action is carried out by the action, and the grinding action that the dredging head rotates and descends is realized by repeating the action;

when the grinding plate is dredged, the disconnection mode is started to work, the first air pump and the second air pump are independently controlled and are guaranteed to work under opposite working conditions, at the moment, the elastic air bag is inflated through the first air pump, the telescopic air bag is pumped out through the second air pump, at the moment, the upper butt bulge is far away from the lower butt bulge, the first air valve is firstly in a closed state, the elastic air bag expands to drive the dredging head to move downwards to penetrate out of the grinding plate and enter the hole of the grinding sieve plate for dredging, and after the dredging head descends to the lowest end, the first air valve is opened to further dredge through the injection of air; after the mediation action is accomplished, the first air pump of control is bled the elasticity gasbag, and the second air pump is aerifyd to flexible gasbag, closes first pneumatic valve this moment, drives dredging head rebound through bleeding to the elasticity gasbag, and flexible gasbag aerifys can understand the protruding drive dredging head rebound of butt down through last butt protruding top simultaneously, realizes reciprocating repeatedly of dredging head under the action, to the mediation of grinding the sieve.

Through the technical scheme: the air supply of the elastic air bag and the telescopic air bag in the grinding plate is controlled by the corresponding first air supply mechanism and the second air supply mechanism, the corresponding control mode can be selected on the controller according to the working state required by the dredging head, and the opposite air supply or air exhaust working mode is carried out when the disconnection mode is adopted, so that the dredging head can reciprocate up and down to dredge; when the on-line mode is adopted, the dredging head can be driven to move up and down in a rotating mode to grind the materials; can select different air feed modes to work according to the operating condition of difference, it is convenient to control, and stability is high.

Example 4

The invention also discloses a crushing method, which comprises the following steps in a specific embodiment of the invention:

In addition, in this embodiment, a dredging grinding step is further included between steps S1 and S2, which specifically includes the following steps:

p2 dredging: starting a disconnection mode to work, controlling the first air supply mechanism and the second air supply mechanism to carry out independent control and ensuring that the first air supply mechanism and the second air supply mechanism work under opposite working conditions, closing the first air valve, firstly inflating the elastic air bag, pumping out air in the telescopic air bag, keeping the upper abutting bulge away from the lower abutting bulge at the moment, expanding the elastic air bag to drive the dredging head to move downwards, penetrate out of the grinding plate and enter the hole of the grinding sieve plate to carry out dredging work, and opening the first air valve to further dredge through the injection of the air after the dredging head descends to the lowest end; after the dredging action is finished, controlling the first air supply mechanism to pump out air in the elastic air bag, controlling the second air supply mechanism to inflate the telescopic air bag, closing the first air valve at the moment, driving the dredging head to move upwards by pumping air to the elastic air bag, and simultaneously inflating the telescopic air bag to drive the dredging head to move downwards by understanding the lower abutting bulge through the upper abutting bulge top, so that the dredging head repeatedly moves up and down under one action, and the grinding sieve plate is dredged;

p3: and (3) circularly repeating the step P1 and the step P2, repeatedly grinding and dredging the material, and avoiding the blockage of the grinding screen during grinding.

While the embodiments of the present application have been described in connection with the drawings, the embodiments and features of the embodiments of the present application can be combined with each other without conflict and the present application is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present application as claimed.

Claims

1. A pulverizing system, characterized by: comprising a crushing device which comprises

A crushing box, which is provided with a feed inlet;

the crushing wheel is arranged in the crushing box;

the grinding sieve plates are arranged in two, are relatively obliquely arranged in the grinding box and are positioned at the bottom of the grinding wheel, and are provided with holes for crushed materials to pass through;

the grinding unit is arranged on the grinding sieve plate and can move on the grinding sieve plate;

the driving mechanism is arranged on the crushing box and used for driving the grinding unit to grind on the grinding sieve plate;

the grinding unit can at least partially penetrate into the holes of the grinding sieve plate to dredge the holes.

2. A pulverizing system as defined in claim 1, wherein: the driving mechanism comprises a rotating shaft which is vertically arranged in the crushing box, and a threaded section is arranged on the rotating shaft;

the transmission conical gear is arranged at the top of the crushing box, and the rotating shaft upwards penetrates through the crushing box and is connected with the transmission conical gear;

the cross rod is arranged at the top of the crushing box through an installation frame, and a motor for controlling the rotation of the cross rod is arranged on one side of the installation frame;

the incomplete bevel gears are fixed on the cross bar and are arranged in two numbers, and the two incomplete bevel gears are arranged in central symmetry and are in meshing transmission with the transmission bevel gear;

the screw sleeve is sleeved on the rotating shaft in a threaded manner;

and two ends of the connecting rod are respectively hinged with the threaded sleeve and the grinding unit.

3. A pulverizing system as defined in claim 1, wherein: the grinding unit comprises a grinding plate, and a cavity is formed in the top of the grinding plate;

an action unit arranged inside the grinding plate;

the dredging head is embedded at the inner bottom of the grinding plate and can penetrate out of the grinding plate downwards under the control of the action mechanism;

the reset groove is formed in the grinding plate and is positioned on one side of the dredging head;

the limiting ring is positioned in the reset groove and fixed outside the dredging head;

and the reset spring is positioned in the reset groove and positioned at the bottom of the limiting ring.

4. A pulverizing system as defined in claim 3, wherein: the action unit comprises an elastic air bag which is arranged in the cavity and is connected with an external first air supply mechanism;

the strut is connected with the elastic air bag and the dredging head;

the elastic air bag is inflated to drive the support rod and the dredging head to move downwards to penetrate out the grinding plate, and the state of the dredging head is divided into two states according to the inflation quantity of the elastic air bag

in a grinding state, a small part of the dredging head penetrates out of the grinding plate;

under the grinding state, the dredging head can be matched with the grinding plate to grind.

5. A pulverizing system as defined in claim 4, wherein: the dredging head comprises

The cylinder is internally provided with a cavity, and two sides of the bottom of the cylinder are provided with exhaust ports;

the exhaust pipe is horizontally fixed in the cylinder, the support rod is of a hollow structure, one end of the support rod penetrates into the cylinder downwards to be connected with the exhaust pipe, the support rod is communicated with the elastic air bag and the exhaust pipe, and a first air valve is arranged at the top of the support rod;

the two first air blowing holes are symmetrically arranged on the exhaust pipe in the center, and air blown out of the first air blowing holes can enable the cylinder body to rotate;

two second air blowing holes are formed, the centers of the two air blowing holes are symmetrically arranged on the exhaust pipe, and the second air blowing holes are symmetrically arranged with the first air blowing holes;

the second air valve is correspondingly arranged at the first air blowing hole and the second air blowing hole and is used for opening and closing the first air blowing hole and the second air blowing hole;

and when the second air valve on the first air blowing hole is opened, the second air valve on the second air blowing hole is closed,

when the second air valve on the second air blowing hole is opened, the second air valve on the first air blowing hole is closed.

6. A pulverizing system as defined in claim 5, wherein: the bottom of the cylinder body is provided with a grinding wall, the side wall of the cylinder body is provided with a spiral protrusion, and a sealing assembly is arranged at the joint of the support rod and the exhaust pipe.

7. A pulverizing system as defined in claim 4, wherein: the grinding unit further comprises a grinding mechanism, the grinding mechanism comprises

The connecting plate is fixed on the support rod;

the lower abutting bulge is fixed on the connecting plate;

the movable frame is slidably arranged on the top wall in the cavity of the grinding plate through a slide rail;

the upper abutting bulge is fixed at the bottom of the movable frame and can be pushed downwards to move the lower abutting bulge;

the telescopic air bag is arranged on one side of the movable frame, is connected with the movable frame and is connected with an external second air supply mechanism.

8. A pulverizing system as defined in claim 7, wherein: a control unit comprising

The first controller is used for controlling the first air supply mechanism and driving the first air supply mechanism to supply air or exhaust air to the elastic air bag;

the second controller is used for controlling the second air supply mechanism and driving the second air supply mechanism to supply air or exhaust air to the telescopic air bag;

the first controller is connected with the second controller, and the working modes of the first controller and the second controller comprise an online mode and a disconnection mode;

wherein the disconnection mode is adapted to the dredging state of the dredging head, the first controller and the second controller operate independently at the moment, and the first air supply mechanism and the second air supply mechanism are controlled to work in opposite states,

namely, one supplies air and the other exhausts air;

the online mode is adapted to the grinding state of the dredging head, and the first controller and the second controller are operated online and control the first air supply mechanism and the second air supply mechanism to work in the same state.

9. A pulverizing method adapted for use in a pulverizing system as defined in claim 8, comprising the steps of:

s1, crushing: starting a crushing wheel to rotate, conveying materials from a feeding hole, performing crushing work through the crushing wheel, enabling the crushed materials to fall onto a grinding sieve plate, enabling the materials which are crushed more completely to pass through the grinding sieve plate to be discharged, and enabling the materials which are not crushed completely to not pass through the grinding sieve plate to be left on the grinding sieve plate;

10. A method of comminution according to claim 9 in which: the method also comprises a dredging and grinding step between the steps S1 and S2, and specifically comprises the following steps:

p1, multiple crushing: the dredging head on the grinding sieve plate is controlled to grind and crush by starting an online mode, the control unit controls and drives the first air supply mechanism and the second air supply mechanism to simultaneously supply air to the elastic air bag and the telescopic air bag, the first air valve is opened, the dredging head is driven to rotate by continuous air supply of the first air supply mechanism, meanwhile, the second air supply mechanism supplies air to drive the telescopic air bag to extend to push the upper butt joint bulge to contact with the lower butt joint bulge to drive the dredging head to move downwards, the downward movement while the dredging head rotates is realized to impact and crush the material and perform rotary grinding, and crushing work on the grinding sieve plate is performed; after grinding is finished, controlling a first air pump and a second air pump to simultaneously pump air, closing a first air valve, moving a dredging head upwards to enter a grinding plate, and stopping grinding and crushing; carrying out a grinding action by the action, and repeating the action to realize the grinding action of rotating and descending the dredging head;

p2 dredging: starting a disconnection mode to work, controlling the first gas supply mechanism and the second gas supply mechanism to carry out independent control and ensuring that the first gas supply mechanism and the second gas supply mechanism work under opposite working conditions, closing the first gas valve, firstly inflating the elastic gas bag, pumping out gas in the telescopic gas bag, keeping the upper abutting bulge away from the lower abutting bulge at the moment, expanding the elastic gas bag to drive the dredging head to move downwards to penetrate out of the grinding plate and enter the hole of the grinding sieve plate for dredging, and opening the first gas valve to further dredge through the injection of the gas after the dredging head descends to the lowest end; after the dredging action is finished, controlling the first air supply mechanism to pump out air in the elastic air bag, controlling the second air supply mechanism to inflate the telescopic air bag, closing the first air valve at the moment, driving the dredging head to move upwards by pumping air to the elastic air bag, and simultaneously inflating the telescopic air bag by understanding the lower abutting bulge through the upper abutting bulge to drive the dredging head to move downwards, so that the dredging head repeatedly moves up and down under one action, and the grinding sieve plate is dredged;

p3: and circularly repeating the step P1 and the step P2.