CN111570091A

CN111570091A - Electrostatic adsorption type automatic dust filtering mechanism of grinding and grinding regenerator

Info

Publication number: CN111570091A
Application number: CN202010328717.4A
Authority: CN
Inventors: 王水波
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2020-08-25

Abstract

The invention relates to the field of dust filtration of pipelines, in particular to an electrostatic adsorption type automatic dust filtration mechanism of a grinding regenerator, which comprises a rectangular pipeline, a cylindrical filter screen, a main shaft, a nylon friction part and a dust removal scraper blade, wherein the middle part of the rectangular pipeline is provided with a cylindrical accommodating cavity for accommodating the cylindrical filter screen, the main shaft is coaxially arranged in the cylindrical accommodating cavity, the bottom of the cylindrical accommodating cavity is provided with a strip-shaped notch, the nylon friction part is attached to the bottom of the inner wall of the cylindrical accommodating cavity, the dust removal scraper blade is attached to the bottom of the rectangular pipeline, one end of the dust removal scraper blade extends to the strip-shaped notch and is attached to the outer wall of the cylindrical filter screen, one side of the rectangular pipeline is provided with a driving motor for driving the main shaft to rotate, the invention rubs the rotating filter screen through the nylon friction part, so that the surface of the filter screen is provided with static electricity, the dust is, thereby effectively improving the condition that dust is accumulated on the wall of the rear-end pipe.

Description

Electrostatic adsorption type automatic dust filtering mechanism of grinding and grinding regenerator

Technical Field

The invention relates to the field of dust filtration of pipelines, in particular to an electrostatic adsorption type automatic dust filtration mechanism of a grinding and grinding regenerator.

Background

The used sand regeneration is a treatment process for removing invalid or non-invalid binder coating films attached to the surfaces of used sand particles by adopting physical and chemical means such as a mechanical friction method, a heating method, a hydraulic method and the like to recover various process performances of the used sand, and the final purpose of the treatment process is to reduce the consumption of new sand, save economic investment and improve the quality of castings so as to protect the natural environment. In recent years, along with the increasing of environmental protection awareness of people, the increasing of environment protection law enforcement force and the increasing of pollution discharge cost of the nation all force foundries to regenerate and recycle waste sand. The waste foundry sand can be used for producing various new materials and products, and has positive significance in replacing the natural primary resources of the ghost and comprehensively utilizing the wastes.

In general, in a processing process for recycling waste sand, main equipment includes an impact crusher, a powerful grinding and re-lifting machine, a lifter, a magnetic separator, a winnowing machine, a sieving machine and the like, in order to make dust emission reach the standard, a combined bag-type dust remover and a matched pipeline system are additionally configured, and a large amount of dust is attached to the inner wall of the matched pipeline system along with use of the matched pipeline system and accumulated, so that a mechanism capable of pre-filtering the discharged dust airflow at the front end of a pipeline needs to be designed.

Disclosure of Invention

The invention aims to provide an electrostatic adsorption type automatic dust filtering mechanism of a grinding and grinding regenerator.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an automatic dirt mechanism of straining of electrostatic absorption formula of scrubbing regenerator, including the rectangle pipeline, the cylinder filter screen, the main shaft, nylon friction portion and dust removal scraper blade, the middle part of rectangle pipeline is provided with the cylinder that is used for holding the cylinder filter screen and holds the chamber, the main shaft is coaxial to be set up in the cylinder and holds the intracavity, and the coaxial cover of cylinder filter screen is located on the main shaft, the cylinder holds the bottom in chamber and has seted up a bar breach, the laminating of nylon friction portion sets up in the cylinder holds the inner wall bottom in chamber, the dust removal scraper blade laminating sets up in the bottom of rectangle pipeline and its one end stretches to the bar breach and laminates with the outer wall of cylinder filter screen, one side of rectangle pipeline is provided.

As an optimal selection scheme that grinds automatic dirt mechanism of electrostatic absorption formula of regenerator, the cylinder holds and leaves the clearance between the inboard of chamber and the outer wall of cylinder filter screen, nylon friction portion be located this clearance and with the outside contact of cylinder filter screen, nylon friction position in the cylinder hold the chamber bottom and be close to the bar breach setting.

As an optimal selection scheme who grinds automatic dirt mechanism of electrostatic absorption formula of regenerator, the both ends fixedly connected with end cover plate of cylinder filter screen, the both ends of main shaft pass the center department of end cover plate respectively and hold the both ends in chamber with the cylinder and be connected, the cylinder holds the both ends center department in chamber and all is equipped with the bearing that is used for supplying the main shaft to connect, set up a spacing groove rather than the axis syntropy on the outer wall of main shaft, be provided with the spacing strip of a cooperation spacing groove on the inner hole wall of end cover plate.

As an optimal selection scheme who grinds automatic dirt mechanism of electrostatic absorption formula of regenerator, one side both ends that the bottom of rectangle pipeline is close to the bar breach all fixedly are provided with L type backup pad, and the both ends of dust removal scraper blade are slided respectively and are inlayed in locating the clearance between L type backup pad and the rectangle pipeline bottom, all fixedly in every L type backup pad to be provided with and to be used for supporting the elastic mechanism tight with dust removal scraper blade and cylinder filter screen.

As an optimal selection scheme who grinds automatic dirt mechanism of electrostatic absorption formula of regenerating machine, the one end swing joint that is close to the bar breach of dust removal scraper blade has one to scrape the strip, and the sectional shape main part of scraping the strip is horizontal right trapezoid and its hypotenuse is the cambered surface structure that can laminate with the cylinder filter screen outer wall, scrapes the inboard of strip and offers one and be used for the downward wedge through-hole of drawing forth of the dust on circular filter screen surface.

As an optimal selection scheme that grinds automatic dirt mechanism of straining of electrostatic absorption formula of regenerator, elastic mechanism includes L type connecting plate and spring, L type connecting plate is the horizontality setting and its long limit is fixed to be set up in the first half in the outside of L type backup pad, the spring is located the one side that the bar breach was kept away from to the dust removal scraper blade, the inside embedding dust removal scraper blade of one end of spring, the other end is contradicted with the minor face inboard of L type connecting plate, the minor face inboard of L type connecting plate is fixed and is provided with a minor axis that is used for supporting spring one end, the one pot head of spring is located outside the minor axis, the tip of dust removal scraper blade is equipped with the.

As an optimal selection scheme who grinds automatic dirt mechanism of electrostatic absorption formula of regenerator, scrape one side that the strip kept away from the bar breach and be equipped with the axle sleeve, one side both ends of dust removal scraper blade all are equipped with the hinge lug, and the axle sleeve is located between two hinge lugs to the axle sleeve through with a fixed axle and two hinge lug coupling, the first one of the outer end of hinge lug is fillet structure, the latter half is right angle structure, the one end that the bar breach was kept away from to the axle sleeve is full fillet structure.

As an optimal selection scheme of the electrostatic adsorption type automatic dust filtering mechanism of the grinding and grinding regenerator, annular flanges are fixedly arranged on one opposite sides of two end cover plates, and the two ends of a cylindrical filter screen are fixedly clamped on the outer sides of the annular flanges respectively.

As an optimal selection scheme that grinds automatic dirt mechanism of straining of electrostatic absorption formula of regenerator, seted up a strip through-hole unanimous rather than length direction on the long limit of L type connecting plate, the outside of L type supporting seat be equipped with one with strip through-hole complex bolt hole, the fixed triangle-shaped strengthening rib that is provided with in reentrant corner department of L type connecting plate.

As an optimal scheme of the electrostatic adsorption type automatic dust filtering mechanism of the grinding and grinding regenerator, a driving motor is fixedly arranged on one side of a rectangular pipeline through a U-shaped support, one end of a main shaft is provided with a connecting shaft, and an output shaft of the driving motor penetrates through the U-shaped support and is connected with the connecting shaft at the end part of the main shaft through a coupler.

The invention has the beneficial effects that: according to the automatic dust filtering mechanism, the nylon friction part is used for rubbing the rotating filter screen according to the principle of frictional electrification, so that the surface of the filter screen is charged with static electricity, dust is adsorbed by the static electricity, and finally the dust adsorbed and accumulated on the surface of the filter screen is removed through the wedge-shaped through holes in the scraping strips, so that the condition that the dust is accumulated on the wall of the rear end pipe is effectively improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is an enlarged schematic view of a point a in fig. 1.

Fig. 3 shows a top view of the present invention.

Fig. 4 is a plan sectional view taken along line B-B in fig. 3.

Fig. 5 is an enlarged schematic view of fig. 4 at D.

Fig. 6 is a plan sectional view taken along line C-C in fig. 3.

Fig. 7 is an enlarged schematic view of E in fig. 6.

Fig. 8 is an enlarged schematic view of F in fig. 6.

Fig. 9 shows a connection of the wiper strip to the dust removal blade.

Fig. 10 is a perspective view of a rectangular duct.

Fig. 11 shows an exploded view of the cylindrical screen and spindle.

Fig. 12 is a perspective view of the end cover plate.

Fig. 13 is an exploded perspective view of the dust removing blade and the elastic mechanism.

Fig. 14 is a perspective view of the L-shaped connecting plate.

In the figure: 1-a rectangular pipe; 2-cylindrical filter screen; 3-a main shaft; 4-nylon friction; 5-a dust removal scraper blade; 6-a cylindrical containing cavity; 7-a strip-shaped notch; 8-driving a motor; 9-end cover plate; 10-a bearing; 11-a limiting groove; 12-a limit bar; 13-L shaped support plates; 14-scraping strip; 15-cambered surface structure; 16-a wedge-shaped through hole; 17-L-shaped connecting plates; 18-a spring; 19-minor axis; 20-a cylindrical groove; 21-shaft sleeve; 22-hinge ear; 23-a fixed shaft; 24-a rounded corner structure; 25-an annular flange; 26-strip-shaped through holes; 27-bolt holes; 28-triangular reinforcing ribs; 29-U-shaped brackets; 30-a connecting shaft; 31-coupling.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Refer to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 10 are shown, an automatic dirt mechanism of straining of electrostatic absorption formula of grinding regenerator, including rectangular pipe 1, cylindrical filter screen 2, main shaft 3, nylon friction portion 4 and dust removal scraper blade 5, rectangular pipe 1's middle part is provided with the cylinder that is used for holding cylindrical filter screen 2 and holds chamber 6, main shaft 3 coaxial setting holds in chamber 6 in the cylinder, and cylindrical filter screen 2 locates on main shaft 3 with axle sleeve 21, a bar breach 7 has been seted up to the bottom that the chamber 6 was held to the cylinder, the laminating of nylon friction portion 4 sets up in the inner wall bottom that the chamber 6 was held to the cylinder, dust removal scraper blade 5 laminating sets up in rectangular pipe 1's bottom and its one end stretches to bar breach 7 and with cylindrical filter screen 2's outer wall laminating, one side of rectangular pipe 1 is provided with the driving motor 8 that. This mechanism integral mounting grinds in the middle of the discharge line of regenerating unit and corollary equipment in grinding, main shaft 3 links to each other with driving motor 8, it is rotatory to be used for driving the cylinder and hold 2 cylindrical filter screens in the chamber 6, come to adsorb the dust granule through rotatory filter screen, 4 looks mutual frictions of friction nylon friction portion through 2 continuous friction of cylindrical filter screen, thereby make cylindrical filter screen 2's surface produce static, thereby the more efficient adsorbs the dust, by adsorbed dust, along with 2 rotatory a week backs of cylindrical filter screen, get rid of by dust removal scraper blade 5.

Referring to fig. 6 and 8, a gap is left between the inner side of the cylinder accommodating cavity 6 and the outer wall of the cylinder filter screen 2, the nylon friction part 4 is located in the gap and contacts with the outer side of the cylinder filter screen 2, and the nylon friction part 4 is located at the bottom of the cylinder accommodating cavity 6 and is close to the strip-shaped notch 7. The rotatory in-process of cylinder filter screen 2, after the dust is strained to dust removal scraper blade 5, rub with nylon friction portion 4 again, cylinder filter screen 2 surface after the friction can produce a large amount of static to adsorb the dust in the pipeline air current on its surface, the dust that is adsorbed comes dust removal scraper blade 5 department along with the rotation of cylinder filter screen 2 and strikes off.

Referring to fig. 4, fig. 10, fig. 11 and fig. 12, two ends of the cylindrical filter screen 2 are fixedly connected with end cover plates 9, two ends of the main shaft 3 respectively penetrate through the centers of the end cover plates 9 and are connected with two ends of the cylindrical accommodating cavity 6, bearings 10 used for connecting the main shaft 3 are arranged at the centers of the two ends of the cylindrical accommodating cavity 6, a limiting groove 11 which is in the same direction as the axis of the main shaft 3 is formed in the outer wall of the main shaft 3, and a limiting strip 12 matched with the limiting groove 11 is arranged on the inner hole wall of the end cover plate 9. The end cover plates 9 are clamped in the limiting grooves 11 outside the main shaft 3 through the limiting strips 12 on the inner hole wall, so that the two end cover plates 9 can rotate together with the main shaft 3, and the cylindrical filter screen 2 is driven to rotate to perform friction electrification and dust filtration processes.

Referring to fig. 2, both ends of one side of the bottom of the rectangular pipeline 1 near the strip-shaped notch 7 are fixedly provided with an L-shaped support plate 13, both ends of the dust removing scraper 5 are respectively embedded in a gap between the L-shaped support plate 13 and the bottom of the rectangular pipeline 1 in a sliding manner, and each L-shaped support plate 13 is fixedly provided with an elastic mechanism for abutting the dust removing scraper 5 and the cylindrical filter screen 2. Two L type backup pads 13 set up respectively in the bottom both sides of rectangular pipe 1, and two minor faces of two L type backup pads 13 are used for hitching the both ends of dust removal scraper blade 5 to make dust removal scraper blade 5 hang in the bottom of rectangular pipe 1 and can move towards the direction translation that is close to bar breach 7 through L type supporting seat. The elastic mechanism is used for forcing the dust removal scraper 5 to be always attached to the outer wall of the cylindrical filter screen 2 for filtering dust.

Referring to fig. 7, one end of the dust removing scraper 5 close to the strip-shaped notch 7 is movably connected with a scraping strip 14, the main body of the cross section of the scraping strip 14 is a transverse right trapezoid and the bevel edge of the main body is an arc surface structure 15 capable of being attached to the outer wall of the cylindrical filter screen 2, and a wedge-shaped through hole 16 used for leading out dust on the surface of the circular filter screen downwards is formed in the inner side of the scraping strip 14. Under the supporting effect of the elastic mechanism, the dust removal scraper 5 tightly supports the scraping strip 14 at the front end against the outer wall of the cylindrical filter screen 2, and the scraping strip 14 is attached to the cylindrical filter screen 2 through the cambered surface structure 15 at the top of the scraping strip, so that adsorbed and accumulated dust is downwards separated and removed along the wedge-shaped through hole 16 on the scraping strip 14 along with the rotation of the cylindrical filter screen 2.

Referring to fig. 2 and 13, the elastic mechanism includes an L-shaped connecting plate 17 and a spring 18, the L-shaped connecting plate 17 is disposed horizontally and a long side thereof is fixedly disposed at an upper half portion of an outer side of the L-shaped supporting plate 13, the spring 18 is disposed at a side of the dust removing scraper 5 away from the strip notch 7, one end of the spring 18 is embedded into the dust removing scraper 5, the other end thereof abuts against an inner side of a short side of the L-shaped connecting plate 17, a short shaft 19 for supporting one end of the spring 18 is fixedly disposed at an inner side of the short side of the L-shaped connecting plate 17, one end of the spring 18 is sleeved outside the short shaft 19, and a cylindrical groove 20 for accommodating the other. L type connecting plate 17 fixed connection is in the outside of L type supporting seat, and its minor face is used for extrusion spring 18, thereby make spring 18 can promote dust removal scraper 5 forward, and then support tightly on cylindrical filter screen 2's outer wall through what dust removal scraper 5 lasted will scrape strip 14, minor axis 19 on the L type connecting plate 17 is used for supplying spring 18 cover to establish, the last cylinder groove 20 of dust removal scraper 5 is used for holding spring 18's the other end, in order to guarantee that spring 18 can not follow and drop between dust removal scraper 5 and the L type connecting plate 17.

Referring to fig. 7, 9 and 13, one side of the scraping strip 14 away from the strip-shaped gap 7 is provided with a shaft sleeve 21, two ends of one side of the dust removing scraper 5 are provided with hinge lugs 22, the shaft sleeve 21 is located between the two hinge lugs 22, the shaft sleeve 21 is in shaft connection with the two hinge lugs 22 through a fixing shaft 23, the upper half part of the outer end of each hinge lug 22 is a round angle structure 24, the lower half part of the outer end of each hinge lug is a right angle structure, and one end of the shaft sleeve 21 away from the strip-shaped gap 7 is a full round angle. Scrape and articulate through fixed axle 23 between 14 and the dust removal scraper blade 5, the outer end of axle sleeve 21 is full fillet structure 24, be used for guaranteeing to make and scrape 14 rotatory round fixed axle 23, and then guarantee that the cambered surface structure 15 at 14 tops of scraping can remain the laminating state with cylindrical filter screen 2's outer wall all the time, so that scrape 14 and can fall cylindrical filter screen 2 surface and inside absorbent dust separation, fillet structure 24 of articulated ear 22 upper end is used for dodging scrape 14 pivoting, articulated ear 22 lower extreme is fillet structure 24, be used for guaranteeing to scrape 14 and can not flagging, thereby the influence is scraped the laminating between 14 and the cylindrical filter screen 2 outer wall.

Referring to fig. 5, 11 or 12, the opposite sides of the two end cover plates 9 are both fixedly provided with annular flanges 25, and both ends of the cylindrical filter screen 2 are respectively fixedly clamped outside the annular flanges 25. The cylindrical filter screen 2 is connected with the main shaft 3 through two end cover plates 9, and the inner wall of the cylindrical filter screen 2 is tightly connected with the outer wall of the annular flange 25.

Referring to fig. 2 and 14, a long side of the L-shaped connecting plate 17 is provided with a strip-shaped through hole 26 having the same length direction as the L-shaped connecting plate, the outer side of the L-shaped supporting seat is provided with a bolt hole 27 matched with the strip-shaped through hole 26, and a triangular reinforcing rib 28 is fixedly arranged at an internal corner of the L-shaped connecting plate 17. The strip-shaped through holes 26 are used for mounting the L-shaped connecting plate 17 and the L-shaped supporting plate 13, the bolts penetrate through the strip-shaped through holes 26 and are inserted into the bolt holes 27 to achieve fastening connection, the strip-shaped through holes 26 enable the L-shaped connecting plate 17 to have a transverse adjusting range during fastening mounting, then the extrusion force of the spring 18 is adjusted by adjusting the position of the L-shaped connecting plate 17, and therefore the pressure between the scraping strip 14 and the cylindrical filter screen 2 is adjusted finally.

Referring to fig. 1 and 3, the driving motor 8 is fixedly disposed at one side of the rectangular pipe 1 through a U-shaped bracket 29, one end of the main shaft 3 is provided with a connecting shaft 30, and an output shaft of the driving motor 8 passes through the U-shaped bracket 29 and is connected with the connecting shaft 30 at the end of the main shaft 3 through a coupling 31. The driving motor 8 drives the connecting shaft 30 to rotate through the coupler 31, so that the connecting shaft 30 drives the main shaft 3 to rotate, and the main shaft 3 drives the cylindrical filter screen 2 to rotate.

It should be understood that the above-described embodiments are merely preferred embodiments of the invention and the technical principles applied thereto. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, such variations are within the scope of the invention as long as they do not depart from the spirit of the invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.

Claims

1. An electrostatic adsorption type automatic dust filtering mechanism of a grinding and regenerating machine is characterized by comprising a rectangular pipeline (1), a cylindrical filter screen (2), a main shaft (3), a nylon friction part (4) and a dust removing scraper (5), wherein the middle part of the rectangular pipeline (1) is provided with a cylindrical accommodating cavity (6) for accommodating the cylindrical filter screen (2), the main shaft (3) is coaxially arranged in the cylindrical accommodating cavity (6), and cylindrical filter screen (2) are located on main shaft (3) with axle sleeve (21), a bar breach (7) have been seted up to the bottom that the cylinder held chamber (6), nylon friction portion (4) laminating sets up in the inner wall bottom that the cylinder held chamber (6), dust removal scraper blade (5) laminating sets up in the bottom of rectangle pipeline (1) and its one end stretches to bar breach (7) and laminates with the outer wall of cylindrical filter screen (2), one side of rectangle pipeline (1) is provided with and is used for driving the rotatory driving motor (8) of main shaft (3).

2. An electrostatic adsorption type automatic dust filtering mechanism of a grinding and grinding regenerator as claimed in claim 1, wherein a gap is left between the inner side of the cylindrical accommodating cavity (6) and the outer wall of the cylindrical filter screen (2), the nylon friction part (4) is positioned in the gap and contacted with the outer side of the cylindrical filter screen (2), and the nylon friction part (4) is positioned at the bottom of the cylindrical accommodating cavity (6) and is arranged close to the strip-shaped notch (7).

3. An electrostatic adsorption type automatic dust filtering mechanism of a grinding and grinding regenerator as defined in claim 2, wherein end cover plates (9) are fixedly connected to two ends of the cylindrical filter screen (2), two ends of the main shaft (3) respectively pass through the centers of the end cover plates (9) and are connected with two ends of the cylindrical accommodating chamber (6), bearings (10) for connecting the main shaft (3) are respectively arranged at the centers of the two ends of the cylindrical accommodating chamber (6), a limiting groove (11) in the same direction as the axis of the main shaft (3) is formed in the outer wall of the main shaft, and a limiting strip (12) matched with the limiting groove (11) is arranged on the inner hole wall of the end cover plate (9).

4. An electrostatic adsorption type automatic dust filtering mechanism of a grinding and grinding regenerator as claimed in claim 1, wherein both ends of one side of the bottom of the rectangular pipeline (1) close to the strip-shaped notch (7) are fixedly provided with L-shaped supporting plates (13), both ends of the dust removing scraper (5) are respectively embedded in a gap between the L-shaped supporting plates (13) and the bottom of the rectangular pipeline (1) in a sliding manner, and each L-shaped supporting plate (13) is fixedly provided with an elastic mechanism for abutting the dust removing scraper (5) against the cylindrical filter screen (2).

5. An electrostatic adsorption type automatic dust filtering mechanism of a grinding and grinding regenerator as claimed in claim 4, wherein one end of the dust removing scraper (5) close to the strip-shaped notch (7) is movably connected with a scraping strip (14), the main body of the cross section of the scraping strip (14) is a transverse right trapezoid, the inclined edge of the main body is an arc surface structure (15) capable of being attached to the outer wall of the cylindrical filter screen (2), and the inner side of the scraping strip (14) is provided with a wedge-shaped through hole (16) for leading out dust on the surface of the circular filter screen downwards.

6. An electrostatic adsorption type automatic dust filtering mechanism of a grinding and grinding regenerator as claimed in claim 4, wherein the elastic mechanism comprises an L-shaped connecting plate (17) and a spring (18), the L-shaped connecting plate (17) is arranged in a horizontal state, the long side of the L-shaped connecting plate is fixedly arranged on the upper half part of the outer side of the L-shaped supporting plate (13), the spring (18) is positioned on one side of the dust removing scraper (5) far away from the strip-shaped notch (7), one end of the spring (18) is inwards embedded into the dust removing scraper (5), the other end of the spring is abutted against the inner side of the short side of the L-shaped connecting plate (17), the inner side of the short side of the L-shaped connecting plate (17) is fixedly provided with a short shaft (19) for supporting one end of the spring (18), one end of the spring (18) is sleeved outside the short shaft (19), and the end part of the.

7. An electrostatic adsorption type automatic dust filtering mechanism of a grinding and grinding regenerator as claimed in claim 5, wherein a shaft sleeve (21) is arranged at one side of the scraping strip (14) far away from the strip-shaped notch (7), two hinged lugs (22) are arranged at two ends of one side of the dust removing scraping plate (5), the shaft sleeve (21) is positioned between the two hinged lugs (22), the shaft sleeve (21) is connected with the two hinged lugs (22) through a fixing shaft (23) in a shaft joint mode, the upper half part of the outer end of each hinged lug (22) is of a round angle structure (24), the lower half part of the outer end of each hinged lug is of a right angle structure, and one end of the shaft sleeve (21) far away from the strip-shaped notch (7) is of a.

8. An electrostatic adsorption type automatic dust filtering mechanism for a grinding and grinding regenerator as claimed in claim 3, wherein the two end cover plates (9) are fixedly provided with an annular flange (25) at the opposite side, and the two ends of the cylindrical filter screen (2) are respectively and fixedly clamped at the outer side of the annular flange (25).

9. A grinding and polishing type automatic electrostatic adsorption dust filtering mechanism as claimed in claim 6, wherein the L-shaped connecting plate (17) is provided with a strip-shaped through hole (26) on the long side in the same length direction, the L-shaped support is provided with a bolt hole (27) on the outer side for matching with the strip-shaped through hole (26), and a triangular reinforcing rib (28) is fixedly arranged at the internal corner of the L-shaped connecting plate (17).

10. A grinding and polishing type electrostatic adsorption automatic dust filtering mechanism as claimed in claim 1, wherein the driving motor (8) is fixedly arranged at one side of the rectangular pipe (1) through a U-shaped bracket (29), one end of the main shaft (3) is provided with a connecting shaft (30), and the output shaft of the driving motor (8) passes through the U-shaped bracket (29) and is connected with the connecting shaft (30) at the end part of the main shaft (3) through a coupler (31).