Pulverizer with dust recovery function

Abstract

The utility model provides a crusher with a dust recovery function, which relates to the technical field of crushers and comprises a movable base, the lower end of a mounting bracket is fixedly assembled at the upper ends of two second wedge-shaped sliding blocks of the movable base, and a crusher main body is fixedly assembled at the upper end of the mounting bracket. The lower end of the dust recycling device is fixedly assembled at the upper end of a first wedge-shaped sliding block of the movable base. The input end of the dust recycling device fixedly communicates with the lower end of the outer wall of the pulverizer body. According to the device, raw materials are smashed through the smashing machine main body, dust generated in the raw material smashing process is subjected to negative pressure suction through the dust recycling device, the sucked dust is filtered through the cylindrical filter element, and after the raw materials are smashed, the filtered dust is precipitated into the dust filtering cavity after the dust recycling device stops working and stands still; and the cleaning window structure is opened to recycle the collected dust, so that the cleanness of the working environment is ensured, and the waste of raw materials is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pulverizers, in particular to a pulverizer with a dust recovery function. Background Art

[0002] A crusher is needed when processing some raw materials. The crusher can crush the raw materials into particles. Existing crushers generally crush the materials through the rotating knife in the crushing chamber. Due to design and structural reasons, the dust content in the crushed materials is too high, which can easily cause pollution to the working environment; the overflowing dust cannot be recovered, resulting in waste of raw materials. Utility Model Content

[0003] The utility model aims to provide a pulverizer with a dust recovery function, which pulverizes raw materials through a pulverizer body, uses a dust recovery device to absorb the dust generated during the raw material pulverization process under negative pressure, and filters the absorbed dust to ensure the cleanliness of the working environment, and recovers the filtered raw material dust to avoid waste of raw materials.

[0004] The utility model provides a pulverizer with a dust recovery function, comprising:

[0005] A movable base, a first wedge-shaped slide groove is provided on the left side of the upper surface of the movable base, a second wedge-shaped slide groove is provided on the middle and right sides of the upper surface of the movable base, a first wedge-shaped slider is inserted in the first wedge-shaped slide groove in an interference-type manner, and a second wedge-shaped slider is inserted in the second wedge-shaped slide groove in an interference-type manner;

[0006] A mounting bracket, the lower end of which is fixedly mounted on the upper ends of the two second wedge-shaped sliding blocks;

[0007] A pulverizer body, which is fixedly mounted on the upper end of the mounting bracket;

[0008] A dust recovery device, the lower end of which is fixedly mounted on the upper end of the first wedge-shaped slider, and the input end of the dust recovery device is fixedly connected to the lower end of the outer wall of the pulverizer body;

[0009] There are two adjustable stable support seats, which are symmetrically mounted on the left and right ends of the mobile base;

[0010] A cleaning window structure, which is mounted on the lower end of the outer wall of the dust recovery device;

[0011] The dust recovery device comprises:

[0012] The device shell has a dust recovery chamber at its lower end, a dust filter chamber at its upper end, an annular window at the middle of the bottom surface of the dust filter chamber, and an annular filter screen fixedly installed in the annular window;

[0013] A negative pressure dust removal fan, the input end of which is fixedly connected to the middle of the top surface of the dust filter chamber;

[0014] A cylindrical filter element is longitudinally inserted in the middle of the dust filter chamber, the input end of the negative pressure dust removal fan is located in the middle of the upper end of the cylindrical filter element, and the outer diameter of the cylindrical filter element is the same as the inner diameter of the annular filter screen;

[0015] A dust input pipe, one end of which is fixedly connected to the lower end of the inner wall of the dust filter chamber, and the other end of which is fixedly connected to the lower end of the outer wall of the pulverizer body;

[0016] There are four ultrasonic dust removal structures, which are respectively mounted on the front, back, left and right sides of the upper inner wall of the device shell, and the output ends of the ultrasonic dust removal structures are connected to the dust filtering chamber.

[0017] As a further optimization scheme, in order to remove the dust adhered to the cylindrical filter element by using the ultrasonic oscillation principle, the ultrasonic dust removal structure includes:

[0018] A mounting cavity is provided in the upper inner wall of the device housing;

[0019] Ultrasonic emission holes, two of which are distributed above and below, and the ultrasonic emission holes are connected between the dust filtering cavity and the installation cavity;

[0020] The ultrasonic generator is fixedly installed in the installation cavity and connected to an external power supply after being connected in parallel.

[0021] As a further optimization solution, in order to facilitate the collection of dust entering the dust recovery chamber and facilitate subsequent cleaning, a dust recovery tank is inserted into the dust recovery chamber.

[0022] As a further optimization solution, in order to crush the raw materials entering the cylindrical shell, the crusher body includes:

[0023] The cylindrical shell has cover plates fixedly mounted on both left and right ends by bolts, the lower end of the cylindrical shell is open, and the outer wall of the cylindrical shell is fixedly connected to a one-way air intake valve;

[0024] A feed hopper, the lower end of which is fixedly connected to the middle of the upper surface of the cylindrical shell, and the upper end of the feed hopper is buckled with an upper cover;

[0025] A crushing structure, the right end of which is fixedly mounted on the middle part of the outer side surface of the right cover plate, and the left end of the crushing structure is rotatably connected to the middle part of the inner side surface of the left cover plate;

[0026] A conical discharge hopper, the upper end of which is fixedly connected to the lower end opening of the cylindrical shell;

[0027] The upper end of the discharge pipe with a valve is fixedly connected with the lower end of the conical discharge hopper.

[0028] As a further optimization solution, in order to improve the quality of raw material crushing, a metal filter is laterally fixedly installed at the lower end opening of the cylindrical shell.

[0029] As a further optimization scheme, in order to evenly crush the raw materials, the crushing structure includes:

[0030] A driving motor, which is fixedly mounted on the middle portion of the outer side surface of the right cover plate, and the left end of the rotating shaft of the driving motor passes through the right cover plate;

[0031] The right end of the round rod is fixedly connected to the left end of the rotating shaft of the driving motor through a coupling, the left end of the round rod is rotatably connected to the middle part of the inner side surface of the left cover plate, and the outer wall of the round rod is evenly fixedly equipped with crushing blades.

[0032] As a further optimization solution, in order to clean the dust collected in the dust recovery chamber, the cleaning window structure includes:

[0033] A cleaning window, which is connected to the dust recovery chamber;

[0034] The box door is buckled in the cleaning window, the rear end of the box door is hinged to the rear edge of the inner wall of the cleaning window, and the front end of the outer side surface of the box door is fixedly equipped with a handle.

[0035] As a further optimization solution, in order to facilitate the movement of the device, the mobile base also includes:

[0036] The bottom plate has universal wheels evenly fixedly mounted on its bottom surface.

[0037] As a further optimization solution, in order to stably support the ground when it is not necessary to move, the L-shaped support plate can be raised off the ground when it is necessary to move, so as to facilitate the movement of the universal wheel. The adjustable stable support seat includes:

[0038] The lower end of the screw is rotatably mounted on the upper surface edge of the bottom plate, and the upper end of the screw is coaxially fixedly mounted with a hand-tightened round cap;

[0039] A connecting plate is screwed to the upper end of the outer wall of the screw rod, and a connecting rod is evenly and vertically fixedly connected to the outer edge of the bottom surface of the connecting plate;

[0040] The L-shaped support plate has a transverse portion that fits the ground and faces outward, the upper end of the L-shaped support plate is fixedly connected to the lower end of the connecting rod, and the longitudinal portion of the L-shaped support plate is slidably fitted with the same side end of the movable base.

[0041] As a further optimization solution, in order to support and fix the pulverizer body, the mounting bracket includes:

[0042] Two vertical plates are parallelly distributed on the left and right sides, the lower ends of the two vertical plates are fixedly connected to the upper ends of the second wedge-shaped sliding blocks on the same side, and the upper ends of the two vertical plates are fixedly assembled on the bottom surface of the pulverizer body;

[0043] A crossbeam is fixedly connected to the lower ends of the opposite surfaces of the left and right vertical plates.

[0044] The utility model provides a pulverizer with dust recovery function through improvement, which has the following improvements and advantages compared with the prior art:

[0045] Firstly, the device crushes the raw materials through the pulverizer body, uses the dust recovery device to absorb the dust generated in the raw material crushing process under negative pressure, and filters the absorbed dust through the cylindrical filter element. After the raw material crushing is completed, the dust recovery device stops working and settles in the dust filter chamber, and the cleaning window structure is opened to recover the collected dust, so as to ensure the cleanliness of the working environment and avoid waste of raw materials.

[0046] Secondly, the device can be conveniently moved and transferred through the mobile base. When it needs to be fixed, the stable support seat can be adjusted to make the bottom surface of the L-shaped support plate against the ground for support; when it needs to be moved, the L-shaped support plate can be adjusted to be off the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0048] Figure 1 It is a schematic diagram of the structure of the utility model;

[0049] Figure 2 This is a schematic diagram of the structure of the dust recovery device of the utility model;

[0050] Figure 3 This is a schematic diagram of the main structure of the pulverizer of the utility model;

[0051] Figure 4 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0052] Description of reference numerals:

[0053] 1-mobile base, 11-bottom plate, 12-universal wheel, 13-first wedge-shaped slide, 14-first wedge-shaped slider, 15-second wedge-shaped slide, 16-second wedge-shaped slider, 2-mounting bracket, 21-vertical plate, 22-crossbeam, 3-crusher body, 31-cylindrical shell, 32-cover plate, 33-feed hopper, 34-crushing structure, 341-drive motor, 342-round rod, 343-crushing blade, 35-conical discharge hopper, 36-discharge pipe with valve, 37-metal filter, 4-dust recovery device, 41-installation Housing, 42-dust recovery chamber, 43-dust filtration chamber, 44-negative pressure dust removal fan, 45-annular filter screen, 46-cylindrical filter element, 47-dust input pipe, 48-ultrasonic dust removal structure, 481-installation cavity, 482-ultrasonic emission hole, 483-ultrasonic generator, 49-dust recovery tank, 5-adjustable stable support seat, 51-L-shaped support plate, 52-screw, 53-hand-tightened round cap, 54-connecting plate, 55-connecting rod, 6-cleaning window structure, 61-cleaning window, 62-box door. DETAILED DESCRIPTION

[0054] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0056] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0057] See also Figure 1-4 The utility model provides a technical solution: a pulverizer with dust recovery function, comprising:

[0058] The mobile base 1 has a first wedge-shaped chute 13 on the left side of its upper surface, and second wedge-shaped chute 15 on the middle and right sides of the upper surface of the mobile base 1. A first wedge-shaped slider 14 is inserted in the first wedge-shaped chute 13 in an interference-type manner, and a second wedge-shaped slider 16 is inserted in the second wedge-shaped chute 15 in an interference-type manner.

[0059] The mounting bracket 2 has its lower end fixedly mounted on the upper ends of the two second wedge-shaped sliders 16;

[0060] A pulverizer body 3, which is fixedly mounted on the upper end of the mounting bracket 2;

[0061] The dust recovery device 4 has its lower end fixedly mounted on the upper end of the first wedge-shaped slider 14, and the input end of the dust recovery device 4 is fixedly connected to the lower end of the outer wall of the pulverizer body 3;

[0062] There are two adjustable stable support seats 5, and the two adjustable stable support seats 5 are symmetrically assembled on the left and right ends of the mobile base 1;

[0063] A cleaning window structure 6, which is mounted on the lower end of the outer wall of the dust recovery device 4;

[0064] The dust recovery device 4 comprises:

[0065] The device housing 41 has a dust recovery chamber 42 at its lower end, a dust filter chamber 43 at its upper end, an annular window at the middle of the bottom surface of the dust filter chamber 43, and an annular filter screen 45 fixedly mounted in the annular window;

[0066] A negative pressure dust removal fan 44, the input end of which is fixedly connected to the middle of the top surface of the dust filtering chamber 43;

[0067] The cylindrical filter element 46 is longitudinally inserted into the middle of the dust filter chamber 43. The input end of the negative pressure dust removal fan 44 is located in the middle of the upper end of the cylindrical filter element 46. The outer diameter of the cylindrical filter element 46 is the same as the inner diameter of the annular filter screen 45.

[0068] A dust input pipe 47, one end of which is fixedly connected to the lower end of the inner wall of the dust filtering chamber 43, and the other end of the dust input pipe 47 is fixedly connected to the lower end of the outer wall of the pulverizer body 3;

[0069] There are four ultrasonic dust removal structures 48 , which are respectively mounted on the front, back, left and right sides of the upper inner wall of the device housing 41 , and the output ends of the ultrasonic dust removal structures 48 are connected to the dust filtering chamber 43 .

[0070] When in use, the negative pressure dust removal fan 44 is connected to an external power source and acts on the dust filtering chamber 43 through the cylindrical filter element 46, generating negative pressure in the dust filtering chamber 43, and the dust generated by the pulverizer body 3 grinding the raw material is sucked into the dust filtering chamber 43 by means of the dust input pipe 47, and a filter is provided at the right end of the inner wall of the dust input pipe 47 to avoid the absorption of granular raw materials, and the dust is filtered out by the cylindrical filter element 46, and the air is discharged from the output end of the negative pressure dust removal fan 44; after the raw material is crushed, the filtered dust is stopped and the dust recovery device 4 is stationary and then settled in the dust filtering chamber 43, and the cleaning window structure 6 is opened to recycle the collected dust to ensure the cleanliness of the working environment and avoid waste of raw materials.

[0071] In some embodiments, in order to remove dust adhered to the cylindrical filter element 46 by using the ultrasonic oscillation principle, the ultrasonic dust removal structure 48 includes:

[0072] A mounting cavity 481 is provided in the upper inner wall of the device housing 41;

[0073] There are two ultrasonic emission holes 482 distributed in the upper and lower parts, and the ultrasonic emission holes 482 are connected between the dust filtering cavity 43 and the installation cavity 481;

[0074] The ultrasonic generator 483 is fixedly assembled in the installation cavity 481. The ultrasonic generator 483 is connected in parallel to an external power supply. When the ultrasonic generator 483 is powered on, it generates ultrasonic waves, which are transmitted to the cylindrical filter element 46 in the dust filter removal cavity 43 through the ultrasonic emission hole 482. The ultra-high speed vibration of the ultrasonic wave is used to clean the dust adhering to the cylindrical filter element 46.

[0075] In some embodiments, in order to facilitate the collection of dust entering the dust recovery chamber 49 and facilitate subsequent cleaning, a dust recovery trough 49 is inserted into the dust recovery chamber 42, and the dust entering the dust recovery chamber 49 is loaded into the dust recovery trough 49. After opening the cleaning window structure 6, the dust recovery trough 49 filled with dust can be directly taken out, which is more convenient than directly recovering the dust deposited in the dust recovery chamber 42.

[0076] In some embodiments, in order to pulverize the raw materials entering the cylindrical housing 31, the pulverizer body 3 includes:

[0077] The cylindrical shell 31 has cover plates 32 fixedly mounted on both left and right ends by bolts. The lower end of the cylindrical shell 31 is open, and a one-way air intake valve is fixedly connected to the outer wall of the cylindrical shell 31.

[0078] The feed hopper 33 has a lower end fixedly connected to the middle of the upper surface of the cylindrical shell 31, and an upper cover is buckled on the upper end of the feed hopper 33;

[0079] The crushing structure 34 has its right end fixedly mounted on the middle portion of the outer side surface of the right cover plate 32, and its left end is rotatably connected to the middle portion of the inner side surface of the left cover plate 32;

[0080] The conical discharge hopper 35 has an upper end fixedly connected to the lower end opening of the cylindrical shell 31;

[0081] The upper end of the valved discharge pipe 36 is fixedly connected to the lower end of the conical discharge hopper 35 . The crushing structure 34 is powered on to cut and crush the raw materials entering the cylindrical shell 31 . The crushed raw materials are discharged through the valved discharge pipe 36 .

[0082] In some embodiments, in order to improve the quality of raw material crushing, a metal filter 37 is laterally fixedly installed at the lower end opening of the cylindrical shell 31; the incompletely crushed raw materials are blocked by the metal filter 37 and retained above the metal filter 37 until the raw materials are crushed to a small enough size and can pass through the metal filter 37 into the conical discharge hopper 35, and finally discharged from the open valved discharge pipe 36.

[0083] In some embodiments, in order to uniformly crush the raw materials, the crushing structure 34 includes:

[0084] A driving motor 341 is fixedly mounted on the middle portion of the outer side surface of the right cover plate 32, and the left end of the rotating shaft of the driving motor 341 passes through the right cover plate 32;

[0085] The right end of the round rod 342 is fixedly connected to the left end of the rotating shaft of the driving motor 341 through a coupling, and the left end of the round rod 342 is rotatably connected to the middle part of the inner side surface of the left cover plate 32. The outer wall of the round rod 342 is evenly and fixedly equipped with crushing blades 343; the driving motor 341 is connected to an external power supply, and the driving motor 341 drives the round rod 342 and the crushing blades 343 to rotate at a high degree, and the crushing blades 343 are used to cut and crush the raw materials.

[0086] In some embodiments, in order to clean the dust collected in the dust recovery chamber 42, the cleaning window structure 6 includes:

[0087] A cleaning window 61, which is in communication with the dust recovery chamber 42;

[0088] The box door 62 is buckled into the cleaning window 61, the rear end of the box door 62 is hinged to the rear edge of the inner wall of the cleaning window 61, and a handle is fixedly installed at the front end of the outer side of the box door 62; the box door 62 is opened to clean the recovered dust from the cleaning window 61.

[0089] In some embodiments, in order to facilitate the movement of the device, the mobile base 1 further includes:

[0090] The bottom surface of the bottom plate 11 is evenly and fixedly equipped with universal wheels 12 .

[0091] In some embodiments, in order to stably support the ground when it is not necessary to move, the L-shaped support plate 51 can be raised off the ground when it is necessary to move, so as to facilitate the movement of the universal wheel 12. The adjustable stable support base 5 includes:

[0092] The lower end of the screw rod 52 is rotatably mounted on the upper surface edge of the bottom plate 11, and the upper end of the screw rod 52 is coaxially fixedly mounted with a hand-tightened round cap 53;

[0093] A connecting plate 54 is screwed to the upper end of the outer wall of the screw rod 52, and a connecting rod 55 is evenly and vertically fixedly connected to the outer edge of the bottom surface of the connecting plate 54;

[0094] The L-shaped support plate 51 has its transverse portion in contact with the ground and facing outward, the upper end of the L-shaped support plate 51 is fixedly connected to the lower end of the connecting rod 55, and the longitudinal portion of the L-shaped support plate 51 is slidably in contact with the same side end of the mobile base 1.

[0095] The hand-tightened round cap 53 is rotated clockwise to drive the screw rod 52 to rotate accordingly. The screw rod 52 rotates to drive the connecting plate 54 and the connecting rod 55 to rise, thereby driving the L-shaped support plate 51 fixed to the connecting rod 55 to rise. Conversely, when the hand-tightened round cap 53 is rotated counterclockwise, the L-shaped support plate 51 descends.

[0096] In some embodiments, in order to support and fix the pulverizer body 3, the mounting bracket 2 includes:

[0097] There are two vertical plates 21 parallel to each other on the left and right sides, the lower ends of the two vertical plates 21 are fixedly connected to the upper ends of the second wedge-shaped sliders 16 on the same side, and the upper ends of the two vertical plates 21 are fixedly assembled on the bottom surface of the pulverizer body 3;

[0098] The cross beam 22 is fixedly connected to the lower ends of the opposite surfaces of the left and right vertical plates 21 . The arrangement of the cross beam 22 enhances the mechanical strength of the vertical plates 21 on both sides.

[0099] Working principle:

[0100] The raw materials enter the cylindrical housing 31 from the feed hopper 33, and the crushing structure 34 is powered on to cut and crush the raw materials entering the cylindrical housing 31. The crushed raw materials are discharged through the valved discharge pipe 36. The negative pressure dust removal fan 44 is connected to an external power source and acts on the dust filter chamber 43 through the cylindrical filter element 46, generating negative pressure in the dust filter chamber 43. The dust generated by the crushing of the raw materials by the crusher body 3 is sucked into the dust filter chamber 43 by the dust input pipe 47. A filter screen is provided at the right end of the inner wall of the dust input pipe 47 to avoid sucking in the granular raw materials. The dust is filtered out by the cylindrical filter element 46, and the air is discharged from the output end of the negative pressure dust removal fan 44. After the raw materials are crushed, the filtered dust is stopped and the dust recovery device 4 is stationary and then precipitated into the dust filter chamber 43. The cleaning window structure 6 is opened to recover the collected dust to ensure the cleanliness of the working environment and avoid waste of raw materials.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A pulverizer with dust recovery function, characterized in that: include: A movable base (1) is provided with a first wedge-shaped slide groove (13) on the left side of its upper surface, and second wedge-shaped slide grooves (15) are provided on the middle and right sides of the upper surface of the movable base (1), a first wedge-shaped slide block (14) is inserted in an interference fit manner in the first wedge-shaped slide groove (13), and a second wedge-shaped slide block (16) is inserted in an interference fit manner in the second wedge-shaped slide groove (15); A mounting bracket (2), the lower end of which is fixedly mounted on the upper ends of the two second wedge-shaped sliding blocks (16); A pulverizer body (3) fixedly mounted on the upper end of the mounting bracket (2); A dust recovery device (4), the lower end of which is fixedly mounted on the upper end of the first wedge-shaped slider (14), and the input end of the dust recovery device (4) is fixedly connected to the lower end of the outer wall of the pulverizer body (3); There are two adjustable stable support seats (5), and the two adjustable stable support seats (5) are symmetrically assembled on the left and right ends of the movable base (1); A cleaning window structure (6) is mounted on the lower end of the outer wall of the dust recovery device (4); The dust recovery device (4) comprises: A device housing (41) is provided with a dust recovery chamber (42) at its lower end, a dust filter chamber (43) is provided at its upper end, an annular window is provided in the middle of the bottom surface of the dust filter chamber (43), and an annular filter screen (45) is fixedly installed in the annular window; A negative pressure dust removal fan (44), the input end of which is fixedly connected to the middle of the top surface of the dust filtering chamber (43); A cylindrical filter element (46) is longitudinally inserted into the middle of the dust filter chamber (43), the input end of the negative pressure dust removal fan (44) is located at the middle of the upper end of the cylindrical filter element (46), and the outer diameter of the cylindrical filter element (46) is the same as the inner diameter of the annular filter screen (45); A dust input pipe (47), one end of which is fixedly connected to the lower end of the inner wall of the dust filter chamber (43), and the other end of the dust input pipe (47) is fixedly connected to the lower end of the outer wall of the pulverizer body (3); There are four ultrasonic dust removal structures (48), which are respectively mounted on the front, back, left and right sides of the upper inner wall of the device housing (41), and the output ends of the ultrasonic dust removal structures (48) are all connected to the dust filtering chamber (43).

2. A pulverizer with dust recovery function according to claim 1, characterized in that: The ultrasonic dust removal structure (48) comprises: A mounting cavity (481) is formed in the inner wall of the upper end of the device housing (41); Ultrasonic emission holes (482), two of which are distributed in the upper and lower parts, and the ultrasonic emission holes (482) are connected between the dust filtering cavity (43) and the installation cavity (481); The ultrasonic generator (483) is fixedly mounted in the mounting cavity (481), and the ultrasonic generator (483) is connected in parallel to an external power supply.

3. A pulverizer with dust recovery function according to claim 1, characterized in that: A dust recovery tank body (49) is inserted into the dust recovery chamber (42).

4. A pulverizer with dust recovery function according to claim 1, characterized in that: The pulverizer body (3) comprises: A cylindrical shell (31), with cover plates (32) fixedly mounted on both left and right ends by bolts, the lower end of the cylindrical shell (31) is designed to be open, and a one-way air intake valve is fixedly connected to the outer wall of the cylindrical shell (31); A feed hopper (33), the lower end of which is fixedly connected to the middle of the upper surface of the cylindrical shell (31), and the upper end of the feed hopper (33) is buckled with an upper cover; A crushing structure (34), the right end of which is fixedly mounted on the middle part of the outer side surface of the right cover plate (32), and the left end of the crushing structure (34) is rotatably connected to the middle part of the inner side surface of the left cover plate (32); A conical discharge hopper (35), the upper end of which is fixedly connected to the lower end opening of the cylindrical shell (31); The upper end of the discharge pipe (36) with a valve is fixedly connected to the lower end of the conical discharge hopper (35).

5. A pulverizer with dust recovery function according to claim 4, characterized in that: A metal filter screen (37) is laterally fixedly mounted at the lower opening of the cylindrical housing (31).

6. A pulverizer with dust recovery function according to claim 4, characterized in that: The pulverizing structure (34) comprises: A driving motor (341) is fixedly mounted on the middle portion of the outer side surface of the right cover plate (32), and the left end of the rotating shaft of the driving motor (341) passes through the right cover plate (32); The right end of the round rod (342) is fixedly connected to the left end of the rotating shaft of the driving motor (341) through a coupling, the left end of the round rod (342) is rotatably connected to the middle part of the inner side surface of the left cover plate (32), and the outer wall of the round rod (342) is evenly fixedly equipped with crushing blades (343).

7. A pulverizer with dust recovery function according to claim 1, characterized in that: The cleaning window structure (6) comprises: A cleaning window (61) which is in communication with the dust recovery chamber (42); The box door (62) is buckled in the cleaning window (61), the rear end of the box door (62) is hinged to the rear edge of the inner wall of the cleaning window (61), and the front end of the outer side surface of the box door (62) is fixedly equipped with a handle.

8. The pulverizer with dust recovery function according to claim 1, characterized in that: The mobile base (1) further comprises: The bottom surface of the bottom plate (11) is evenly and fixedly equipped with universal wheels (12).

9. The pulverizer with dust recovery function according to claim 1, characterized in that: The adjustable stable support seat (5) comprises: The lower end of the screw rod (52) is rotatably mounted on the upper surface edge of the bottom plate (11), and the upper end of the screw rod (52) is coaxially fixedly mounted with a hand-tightened round cap (53); A connecting plate (54) is screwed to the upper end of the outer wall of the screw rod (52), and a connecting rod (55) is evenly and vertically fixedly connected to the outer edge of the bottom surface of the connecting plate (54); The L-shaped support plate (51) has a transverse portion that is in contact with the ground and faces outward, an upper end of the L-shaped support plate (51) is fixedly connected to a lower end of a connecting rod (55), and a longitudinal portion of the L-shaped support plate (51) is slidably in contact with the same side end of the mobile base (1).

10. The pulverizer with dust recovery function according to claim 1, characterized in that: The mounting bracket (2) comprises: There are two vertical plates (21) parallel to each other on the left and right sides, the lower ends of the two vertical plates (21) are fixedly connected to the upper ends of the second wedge-shaped sliding blocks (16) on the same side, and the upper ends of the two vertical plates (21) are fixedly assembled on the bottom surface of the pulverizer body (3); A crossbeam (22) is fixedly connected to the lower ends of the opposite surfaces of the left and right upright plates (21).

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