阅读说明：本技术 一种高效烯烃裂解催化剂及其制备方法 (High-efficiency olefin cracking catalyst and preparation method thereof ) 是由 丁鑫 于 2021-08-30 设计创作，主要内容包括：本发明属于催化剂制备技术领域,具体的说是一种高效烯烃裂解催化剂,该催化剂包括以下组分：ZSM-11分子筛50～60份；Y型分子筛30～40份；氧化锰10～20份；氧化铝20～30份；氧化硅40～50份；抗氧化剂10～20份；抗氧化剂能够抑制烯烃被氧化,通过往原料中添加抗氧化剂,使得本催化剂在裂解石脑油时,其烯烃的产量大幅提升；通过电机、转轴、圆盘、研磨轮、滑槽、伸缩杆、导向槽和连接杆的配合使用,既能够实现对颗粒的上下挤压,又能够实现对颗粒的研磨；通过一号空腔、圆台、三号杆、四号杆、压板和破碎齿的配合使用,易于实现对两块压板之间颗粒的挤压,易于实现对两块压板之间颗粒的破碎以及两个破碎齿之间颗粒的破碎,从而能够提高研磨效率和研磨效果。(The invention belongs to the technical field of catalyst preparation, and particularly relates to a high-efficiency olefin cracking catalyst which comprises the following components: 50-60 parts of ZSM-11 molecular sieve; 30-40 parts of a Y-type molecular sieve; 10-20 parts of manganese oxide; 20-30 parts of aluminum oxide; 40-50 parts of silicon oxide; 10-20 parts of an antioxidant; the antioxidant can inhibit the oxidation of olefin, and the yield of olefin of the catalyst is greatly improved when naphtha is cracked by adding the antioxidant into the raw material; through the matching use of the motor, the rotating shaft, the disc, the grinding wheel, the sliding groove, the telescopic rod, the guide groove and the connecting rod, not only can the particles be extruded up and down, but also the particles can be ground; through the cooperation use of a cavity, round platform, No. three poles, No. four poles, clamp plate and broken tooth, easily realize the extrusion to granule between two clamp plates, easily realize the breakage to granule between two clamp plates and the breakage of granule between two broken teeth to can improve grinding efficiency and grinding effect.)

1. An efficient olefin cracking catalyst is characterized in that: the catalyst comprises the following components:

50-60 parts of ZSM-11 molecular sieve;

30-40 parts of a Y-type molecular sieve;

10-20 parts of manganese oxide;

20-30 parts of aluminum oxide;

40-50 parts of silicon oxide;

10-20 parts of an antioxidant.

2. The high efficiency olefin cracking catalyst of claim 1, wherein: the antioxidant comprises the following components:

10-15 parts of tert-butyl hydroquinone;

15-20 parts of dibutyl hydroxy toluene;

13-17 parts of butyl hydroxy anisole.

3. A preparation method of a high-efficiency olefin cracking catalyst is characterized by comprising the following steps: the preparation method comprises the following steps:

s1: putting the granular aluminum oxide, the granular manganese oxide and the granular silicon oxide into a grinding device, so that the granular aluminum oxide, the granular manganese oxide and the granular silicon oxide are ground into powder;

s2: pouring the powder obtained in the step S1 into a stirring barrel, adding water, and uniformly stirring at a stirring speed of 50 r/S and at a temperature of 50-100 ℃;

s3: adding the ZSM-11 molecular sieve and the Y-type molecular sieve into a volume barrel filled with water according to the formula amount, and uniformly stirring the mixture;

s4: uniformly mixing the substance obtained in the step S2 and the substance obtained in the step S3 according to the formula amount, wherein the mixing temperature is 50-80 ℃, then drying by using a drying device, and adding an antioxidant after drying to obtain the high-efficiency olefin cracking catalyst;

the grinding device in the S1 comprises a base (1), a grinding barrel (2), a supporting plate (3) and a grinding unit; the grinding barrel (2) is fixedly connected to the top of the base (1); the supporting plate (3) is fixedly connected to the top of the base (1), and the supporting plate (3) is L-shaped; the grinding unit is arranged in the grinding body; the grinding unit comprises a motor (41), a rotating shaft (42), a disc (43) and a grinding wheel (44); the motor (41) is fixedly connected to the top of the support plate (3); the rotating shaft (42) is fixedly connected to an output shaft of the motor (41); the disc (43) is fixedly connected to the bottom end of the rotating shaft (42); a sliding groove (45) is formed in the side edge of the disc (43); a telescopic rod (46) is connected in the sliding groove (45) in a sliding manner; the inner wall of the grinding barrel (2) is provided with a guide groove (47), and the guide groove (47) is in a sine wave shape; one end of the telescopic rod (46) positioned outside the sliding chute (45) is connected in the guide groove (47) in a sliding manner; the bottom of the telescopic rod (46) is fixedly connected with a plurality of connecting rods (48); the connecting rod (48) penetrates through the bottom of the disc (43) and is connected with the disc (43) in a sliding mode; the grinding wheel (44) is fixedly connected to the bottom end of the connecting rod (48).

4. The method for preparing a high efficiency olefin cracking catalyst according to claim 3, wherein: the telescopic rod (46) comprises a first rod (461), a second rod (462) and a round ball (463); the first rod (461) is connected in the sliding groove (45) in a sliding way and is fixedly connected with the connecting rod (48); one end of the first rod (461) positioned outside the sliding groove (45) is provided with a first hole (464); the second rod (462) is connected in the first hole (464) through a spring, and the second rod (462) is in sliding fit with the first rod (461); the round ball (463) is fixedly connected to one end of the second rod (462) which is positioned outside the first hole (464).

5. The method for preparing a high efficiency olefin cracking catalyst according to claim 4, wherein: a first cavity (51) is arranged in the grinding wheel (44); a circular truncated cone (52) is connected to the inside of the first cavity (51) through a spring; a third rod (53) is fixedly connected to the bottom of the circular truncated cone (52); the third rod (53) penetrates through the bottom of the grinding wheel (44) and is connected with the grinding wheel (44) in a sliding mode; a fourth rod (54) penetrates through and is slidably arranged on both sides of the grinding wheel (44); one end of the fourth rod (54) positioned in the first cavity (51) is in contact with the circular truncated cone (52).

6. The method for preparing a high efficiency olefin cracking catalyst according to claim 5, wherein: one end of the fourth rod (54) positioned outside the first cavity (51) is fixedly connected with a pressure plate (61); crushing teeth (62) are fixedly connected to the side wall of the pressing plate (61).

7. The method for preparing a high efficiency olefin cracking catalyst according to claim 6, wherein: a plurality of second cavities (71) are arranged in the crushing teeth (62); a first air bag (72) is arranged in the second cavity (71); the side wall of the crushing tooth (62) is penetrated and connected with a fifth rod (73) in a sliding way; one end of the fifth rod (73) is connected in the second cavity (71) in a sliding mode, and the other end of the fifth rod is arranged in a pointed cone shape.

8. The method for preparing a high efficiency olefin cracking catalyst according to claim 7, wherein: a hemispherical shell (81) is fixedly connected to the side wall of the crushing tooth (62); the hemispherical shell (81) is communicated with the first air bag (72); the surface of the hemispherical shell (81) is provided with a plurality of through holes; soft rubber (82) is fixedly connected to the opening of the through hole, so that the hemispherical shell (81) is in a closed state; one side of the soft rubber (82) positioned outside the hemispherical shell (81) is fixedly connected with a conical tooth (83).

9. The method for preparing a high efficiency olefin cracking catalyst according to claim 8, wherein: an elastic plate (9) is fixedly connected between the pressure plate (61) and the side wall of the grinding wheel (44), and the longitudinal section of the elastic plate (9) is in a herringbone shape.

10. The method for preparing a high efficiency olefin cracking catalyst according to claim 9, wherein: a second air bag (10) is fixedly connected to the inner side wall of the elastic plate (9); the surface of the second air bag (10) is connected with an air injection pipe (11), and the other end of the air injection pipe (11) penetrates through and is fixedly connected in the wall body of the elastic plate (9).

Technical Field

The invention belongs to the technical field of catalyst preparation, and particularly relates to a high-efficiency olefin cracking catalyst and a preparation method thereof.

Background

Olefins are hydrocarbons containing a C = C bond (carbon-carbon double bond) (olefinic bond), and are classified into unsaturated hydrocarbons, alkenes and cycloalkenes, and are called mono-olefins, di-olefins, and the like depending on the number of double bonds, and one of the double bonds is a pi bond having a high energy, and is unstable and easily broken, so that an addition reaction occurs.

Some technical schemes related to a high-efficiency olefin cracking catalyst and a preparation method thereof also appear in the prior art, for example, a Chinese patent with application number of 201510635142 discloses a catalyst for preparing olefin by catalytic cracking and a preparation method thereof, wherein the catalyst comprises 40-90% of an MFI molecular sieve substituted by metal isomorphous, 0.1-2.5% of rare earth metal oxide and 0.2-2.0% of heteropoly acid in terms of the weight content of the catalyst; in the isomorphous replacement of the metal in the MFI molecular sieve, the metal completely or partially replaces Al in the MFI molecular sieve, and the replacement metal is one or more of magnesium, calcium, zinc, gallium and the like. The preparation method comprises the following steps: (1) selecting a replacement metal to completely or partially replace Al in the ZSM-5 molecular sieve to prepare a metal isomorphous replacement ZSM-5 molecular sieve; (2) selecting a proper amount of adhesive, pulping a proper amount of heteropoly acid solution, the adhesive and the isomorphous replacement ZSM-5 molecular sieve obtained in the step (1) to prepare suspension, drying, and extruding into strips for forming; (3) loading rare earth metal oxide by a hot carrier impregnation method, and drying after impregnation to obtain the final catalyst. The catalyst for preparing olefin by catalytic cracking has the advantages of high olefin yield, low reaction temperature, good catalyst stability and the like; however, the components of the catalyst do not consider the characteristic that the olefin is easily oxidized, so that after the olefin is prepared, part of the olefin is oxidized, and the total yield of the olefin is reduced.

Therefore, the invention provides a high-efficiency olefin cracking catalyst and a preparation method thereof.

Disclosure of Invention

In order to make up the defects of the prior art and solve the problems that the prior catalyst component does not consider the characteristic that olefin is easy to oxidize, so that part of olefin is oxidized after the olefin is prepared and the total yield of the olefin is reduced, the invention provides the high-efficiency olefin cracking catalyst and the preparation method thereof.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a high-efficiency olefin cracking catalyst, which comprises the following components:

50-60 parts of ZSM-11 molecular sieve;

30-40 parts of a Y-type molecular sieve;

10-20 parts of manganese oxide;

20-30 parts of aluminum oxide;

40-50 parts of silicon oxide;

10-20 parts of an antioxidant.

The antioxidant can inhibit the oxidation of olefin, and the antioxidant is added into the raw material, so that the yield of olefin of the catalyst is greatly improved when naphtha is cracked.

Further, the antioxidant comprises the following components:

10-15 parts of tert-butyl hydroquinone;

15-20 parts of dibutyl hydroxy toluene;

13-17 parts of butyl hydroxy anisole.

A preparation method of a high-efficiency olefin cracking catalyst is suitable for the high-efficiency olefin cracking catalyst and comprises the following steps:

s1: putting the granular aluminum oxide, the granular manganese oxide and the granular silicon oxide into a grinding device, so that the granular aluminum oxide, the granular manganese oxide and the granular silicon oxide are ground into powder;

s2: pouring the powder obtained in the step S1 into a stirring barrel, adding water, and uniformly stirring at a stirring speed of 50 r/S and at a temperature of 50-100 ℃;

s3: adding the ZSM-11 molecular sieve and the Y-type molecular sieve into a volume barrel filled with water according to the formula amount, and uniformly stirring the mixture;

s4: uniformly mixing the substance obtained in the step S2 and the substance obtained in the step S3 according to the formula amount, wherein the mixing temperature is 50-80 ℃, then drying by using a drying device, and adding an antioxidant after drying to obtain the high-efficiency olefin cracking catalyst;

the grinding device in the S1 comprises a base, a grinding barrel, a supporting plate and a grinding unit; the grinding barrel is fixedly connected to the top of the base; the supporting plate is fixedly connected to the top of the base and is L-shaped; the grinding unit is arranged in the grinding body; the grinding unit comprises a motor, a rotating shaft, a disc and a grinding wheel; the motor is fixedly connected to the top of the supporting plate; the rotating shaft is fixedly connected to an output shaft of the motor; the disc is fixedly connected to the bottom end of the rotating shaft; a sliding groove is formed in the side edge of the disc; a telescopic rod is connected in the sliding chute in a sliding manner; the inner wall of the grinding barrel is provided with a guide groove, and the guide groove is in a sine wave shape; one end of the telescopic rod, which is positioned outside the sliding chute, is connected in the guide groove in a sliding manner; the bottom of the telescopic rod is fixedly connected with a plurality of connecting rods; the connecting rod penetrates through the bottom of the disc and is in sliding connection with the disc; the grinding wheel is fixedly connected to the bottom end of the connecting rod; the during operation, starter motor for the motor drives the disc through the pivot and rotates, and then makes the one end of the telescopic link on the disc lateral wall slide along the guide way, makes the telescopic link up-and-down motion in the spout, and then makes grinding miller and connecting rod be the up-and-down motion, can enough realize the upper and lower extrusion to the granule, can realize again the grinding to the granule, thereby makes the granule ground more fully, can improve grinding efficiency and grinding effect.

Further, the telescopic rod comprises a first rod, a second rod and a ball; the first rod is connected in the sliding chute in a sliding manner and is fixedly connected with the connecting rod; one end of the first rod, which is positioned outside the sliding groove, is provided with a first hole; the second rod is connected in the first hole through a spring, and the second rod and the first rod are in sliding fit; the ball is fixedly connected to one end of the second rod, which is positioned outside the first hole; the during operation, the telescopic link slides in the guide way, will make No. two poles slide in a downthehole, when a pole downstream in the spout for a downthehole spring is compressed, when a pole upward movement in the spout, makes the spring begin the reconversion, and then makes No. two poles stretch out a hole gradually, thereby makes the ball of No. two pole one ends can slide steadily in the guide way.

Further, a first cavity is formed in the grinding wheel; the inner part of the first cavity is connected with a circular truncated cone through a spring; a third rod is fixedly connected to the bottom of the circular truncated cone; the third rod penetrates through the bottom of the grinding wheel and is connected with the grinding wheel in a sliding manner; a fourth rod penetrates through and is slidably arranged on each of two sides of the grinding wheel; one end of the fourth rod, which is positioned in the first cavity, is in contact with the circular truncated cone; the during operation, when the grinding miller downstream, will make No. three poles gradually with the contact of the bottom inside wall of grinding vessel, and then make No. three poles begin to extrude the spring at its top, make No. four poles remove to the left and right sides of grinding miller simultaneously, will make two adjacent No. four poles remove towards the other side, realize the extrusion to the granule between two adjacent grinding miller, be favorable to realizing the abundant grinding to the granule to can improve grinding efficiency and grinding effect.

Furthermore, a pressing plate is fixedly connected to one end of the fourth rod, which is positioned outside the first cavity; crushing teeth are fixedly connected to the side wall of the pressing plate; the during operation, when four poles between two adjacent grinding miller removed towards the other side, will extrude the granule between two clamp plates, simultaneously broken tooth can realize the breakage to these granules, and simultaneously, the granule between clamp plate and the grinding miller lateral wall also will receive the extrusion when the clamp plate returns, and then be convenient for realize the abundant grinding to the granule to can improve grinding efficiency and grinding effect.

Furthermore, a plurality of second cavities are arranged in the crushing teeth; a first air bag is arranged in the second cavity; the side wall of the crushing tooth is penetrated and connected with a fifth rod in a sliding manner; one end of the fifth rod is slidably connected in the second cavity, and the other end of the fifth rod is arranged in a pointed cone shape; when the crushing tooth is used for crushing particles between the two pressing plates, the particles are filled between the two pressing plates and extrude the fifth rod to slide in the second cavity, and then the fifth rod extrudes the first air bag to compress the first air bag; simultaneously because the tip of No. five poles is the pointed cone setting, also will make the granule crowded garrulous, and then be convenient for fully break the granule between two broken teeth, realize the abundant grinding to the granule to can improve grinding efficiency and grinding effect.

Furthermore, a hemispherical shell is fixedly connected to the side wall of the crushing tooth; the hemispherical shell is communicated with the first air bag; the surface of the hemispherical shell is provided with a plurality of through holes; soft rubber is fixedly connected to the opening of the through hole, so that the hemispherical shell is in a closed state; one side of the soft rubber outside the hemispherical shell is fixedly connected with conical teeth; when the pneumatic grinding machine works, after the first air bag is compressed, the first air bag is communicated with the hemispherical shell, so that gas in the first air bag enters the hemispherical shell, the soft rubber begins to expand and swell, then the conical teeth extrude particles, the particles are crushed, the particles between the two crushing teeth are crushed sufficiently, the particles are ground sufficiently, and the grinding efficiency and the grinding effect can be improved; the hemisphere shell is arranged at the lower half part of the crushing tooth.

Furthermore, an elastic plate is fixedly connected between the pressure plate and the side wall of the grinding wheel, and the longitudinal section of the elastic plate is in a herringbone shape; during operation, the elastic plate can prevent particles and powder from entering the grinding wheel in the slide way at the position of the fourth rod, when the distance between the pressing plate and the grinding wheel is increased, the elastic plate is stretched, when the distance between the pressing plate and the grinding wheel is reduced, the elastic plate is gradually restored to the original state, and meanwhile, the extrusion of the particles between the pressing plate and the side wall of the grinding wheel cannot be influenced.

Furthermore, a second air bag is fixedly connected to the inner side wall of the elastic plate; the surface of the second air bag is connected with an air injection pipe, and the other end of the air injection pipe penetrates through and is fixedly connected in the wall body of the elastic plate; the during operation, the tip of jet-propelled pipe is provided with the filter screen, can avoid the powder to get into the jet-propelled pipe, when the distance between clamp plate and grinding miller reduces, will make No. two gasbags receive the extrusion, make No. two inside gases of gasbag spout from the jet-propelled pipe, can blow away the powder on the elastic plate lateral wall, and then realize the cleanness to the elastic plate, make the powder of being stained with on the elastic plate lateral wall get back to the bottom of grinding barrel, continue to grind, make it become more tiny powder.

The invention has the following beneficial effects:

1. according to the efficient olefin cracking catalyst and the preparation method thereof, the antioxidant can inhibit the oxidation of olefin, and the yield of olefin of the catalyst is greatly improved when the catalyst is used for cracking naphtha by adding the antioxidant into the raw material.

2. According to the efficient olefin cracking catalyst and the preparation method thereof, the motor, the rotating shaft, the disc, the grinding wheel, the sliding groove, the first rod, the second rod, the ball, the first hole, the guide groove and the connecting rod are matched for use, so that not only can the particles be extruded up and down, but also the particles can be ground, the particles are ground more fully, and the grinding efficiency and the grinding effect can be improved.

3. According to the efficient olefin cracking catalyst and the preparation method thereof, the first cavity, the round table, the third rod, the fourth rod, the pressing plates and the crushing teeth are matched for use, so that particles between the two pressing plates are easily extruded, particles between the two pressing plates are easily crushed, and the particles between the two crushing teeth are easily crushed, so that the particles are more fully ground, and the grinding efficiency and the grinding effect can be improved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a flow chart of a method of the present invention;

FIG. 2 is a perspective view of the present invention;

FIG. 3 is a partial cross-sectional view of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a partial enlarged view of FIG. 4 at B;

FIG. 6 is an enlarged view of a portion of FIG. 5 at C;

FIG. 7 is a cross-sectional view of a crushing tooth according to the present invention;

FIG. 8 is an enlarged view of a portion of FIG. 7 at D;

in the figure: 1. a base; 2. a grinding barrel; 3. a support plate; 41. a motor; 42. a rotating shaft; 43. a disc; 44. a grinding wheel; 45. a chute; 46. a telescopic rod; 47. a guide groove; 48. a connecting rod; 461. a first rod; 462. a second rod; 463. a ball; 464. a first hole; 51. a first cavity; 52. a circular truncated cone; 53. a third rod; 54. a fourth rod; 61. pressing a plate; 62. crushing teeth; 71. a cavity II; 72. a first airbag; 73. a fifth rod; 81. a hemispherical shell; 82. a soft rubber; 83. a tapered tooth; 9. an elastic plate; 10. a second airbag; 11. and a gas ejector tube.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Example 1

A high-efficiency olefin cracking catalyst comprises the following components: 50 parts of ZSM-11 molecular sieve, 30 parts of Y-type molecular sieve, 10 parts of manganese oxide, 20 parts of aluminum oxide, 40 parts of silicon oxide and 10 parts of antioxidant.

1L of naphtha is added into a reaction kettle, the reaction temperature is controlled to be 900 ℃, the water-oil ratio is 5, 10g of the high-efficiency olefin cracking catalyst prepared in the embodiment is added, and after the reaction is finished, a gas chromatograph is used for detecting the content of olefin in the reaction kettle.

Example 2

A high-efficiency olefin cracking catalyst comprises the following components: 55 parts of ZSM-11 molecular sieve, 35 parts of Y-type molecular sieve, 15 parts of manganese oxide, 25 parts of aluminum oxide, 45 parts of silicon oxide and 15 parts of antioxidant.

1L of naphtha is added into a reaction kettle, the reaction temperature is controlled to be 900 ℃, the water-oil ratio is 5, 10g of the high-efficiency olefin cracking catalyst prepared in the embodiment is added, and after the reaction is finished, a gas chromatograph is used for detecting the content of olefin in the reaction kettle.

Example 3

A high-efficiency olefin cracking catalyst comprises the following components: 60 parts of ZSM-11 molecular sieve, 40 parts of Y-type molecular sieve, 20 parts of manganese oxide, 30 parts of aluminum oxide, 50 parts of silicon oxide and 20 parts of antioxidant.

1L of naphtha is added into a reaction kettle, the reaction temperature is controlled to be 900 ℃, the water-oil ratio is 5, 10g of the high-efficiency olefin cracking catalyst prepared in the embodiment is added, and after the reaction is finished, a gas chromatograph is used for detecting the content of olefin in the reaction kettle.

	Olefin content
		Example 1	80%
Example 2	90%
		Example 3	85%

It can be seen from examples 1-3 that the high efficiency olefin cracking catalyst of the present invention can reduce the oxidation of olefins and increase the yield of olefins.

As shown in fig. 1 to 8, the preparation method of a high efficiency olefin cracking catalyst according to the present invention is suitable for the above high efficiency olefin cracking catalyst, and comprises the following steps:

s1: putting the granular aluminum oxide, the granular manganese oxide and the granular silicon oxide into a grinding device, so that the granular aluminum oxide, the granular manganese oxide and the granular silicon oxide are ground into powder;

s2: pouring the powder obtained in the step S1 into a stirring barrel, adding water, and uniformly stirring at a stirring speed of 50 r/S and at a temperature of 50-100 ℃;

s3: adding the ZSM-11 molecular sieve and the Y-type molecular sieve into a volume barrel filled with water according to the formula amount, and uniformly stirring the mixture;

s4: uniformly mixing the substance obtained in the step S2 and the substance obtained in the step S3 according to the formula amount, wherein the mixing temperature is 50-80 ℃, then drying by using a drying device, and adding an antioxidant after drying to obtain the high-efficiency olefin cracking catalyst;

the grinding device described in S1 includes a base 1, a grinding barrel 2, a support plate 3, and a grinding unit; the grinding barrel 2 is fixedly connected to the top of the base 1; the supporting plate 3 is fixedly connected to the top of the base 1, and the supporting plate 3 is L-shaped; the grinding unit is arranged in the grinding body; the grinding unit comprises a motor 41, a rotating shaft 42, a disc 43 and a grinding wheel 44; the motor 41 is fixedly connected to the top of the support plate 3; the rotating shaft 42 is fixedly connected to an output shaft of the motor 41; the disc 43 is fixedly connected to the bottom end of the rotating shaft 42; a sliding groove 45 is formed in the side edge of the disc 43; a telescopic rod 46 is connected in the sliding groove 45 in a sliding manner; the inner wall of the grinding barrel 2 is provided with a guide groove 47, and the guide groove 47 is in a sine wave shape; one end of the telescopic rod 46 positioned outside the sliding chute 45 is connected in the guide groove 47 in a sliding manner; a plurality of connecting rods 48 are fixedly connected to the bottom of the telescopic rod 46; the connecting rod 48 penetrates through the bottom of the disc 43 and is connected with the disc 43 in a sliding manner; the grinding wheel 44 is fixedly connected to the bottom end of the connecting rod 48; the during operation, starter motor 41 for motor 41 drives disc 43 through pivot 42 and rotates, and then makes the one end of the telescopic link 46 on the disc 43 lateral wall slide along guide way 47, makes telescopic link 46 up-and-down motion in spout 45, and then makes grinding miller 44 and connecting rod 48 do the up-and-down motion, can enough realize the upper and lower extrusion to the granule, can realize the grinding to the granule again, thereby make the granule ground more fully, can improve grinding efficiency and grinding effect.

As an embodiment of the present invention, the telescopic rod 46 includes a first rod 461, a second rod 462 and a sphere 463; the first rod 461 is connected in the sliding groove 45 in a sliding way and is fixedly connected with the connecting rod 48; one end of the first rod 461, which is positioned outside the sliding groove 45, is provided with a first hole 464; the second rod 462 is connected in the first hole 464 through a spring, and the second rod 462 and the first rod 461 are in a sliding fit state; the ball 463 is fixedly connected to one end of the second rod 462 positioned outside the first hole 464; during operation, when the telescopic link 46 slides in the guide slot 47, the second rod 462 slides in the first hole 464, when the first rod 461 moves downwards in the sliding slot 45, the spring in the first hole 464 is compressed, when the first rod 461 moves upwards in the sliding slot 45, the spring starts to restore, the second rod 462 gradually extends out of the first hole 464, and the round ball 463 at one end of the second rod 462 can smoothly slide in the guide slot 47.

In one embodiment of the present invention, a first cavity 51 is provided inside the grinding wheel 44; a circular truncated cone 52 is connected to the interior of the first cavity 51 through a spring; a third rod 53 is fixedly connected to the bottom of the circular truncated cone 52; the third rod 53 penetrates through the bottom of the grinding wheel 44 and is connected with the grinding wheel 44 in a sliding manner; a fourth rod 54 penetrates through and is slidably arranged on both sides of the grinding wheel 44; one end of the fourth rod 54, which is positioned in the first cavity 51, is in contact with the circular truncated cone 52; the during operation, when the grinding miller 44 downstream, will make No. three pole 53 gradually with the contact of the bottom inside wall of grinding vessel 2, and then make No. three pole 53 begin to extrude the spring at its top, make No. four pole 54 remove to the left and right sides of grinding miller 44 simultaneously, will make two adjacent No. four poles 54 remove towards each other, realize the extrusion to granule between two adjacent grinding miller 44, be favorable to realizing the abundant grinding to the granule, thereby can improve grinding efficiency and grinding effect.

As an embodiment of the present invention, a pressing plate 61 is fixed to one end of the fourth rod 54 located outside the first cavity 51; crushing teeth 62 are fixedly connected to the side wall of the pressing plate 61; in operation, when the rod 54 between two adjacent grinding wheels 44 moves towards each other, the particles between the two pressing plates 61 are pressed, the crushing teeth 62 can crush the particles, and the particles between the pressing plates 61 and the side walls of the grinding wheels 44 are pressed when the pressing plates 61 return, so that the particles can be sufficiently ground, and the grinding efficiency and the grinding effect can be improved.

As an embodiment of the present invention, a plurality of second cavities 71 are disposed in the crushing teeth 62; a first air bag 72 is arranged in the second cavity 71; a fifth rod 73 penetrates through the side wall of the crushing tooth 62 and is connected with the side wall in a sliding manner; one end of the fifth rod 73 is connected in the second cavity 71 in a sliding mode, and the other end of the fifth rod is arranged in a pointed cone shape; when the crushing tooth 62 starts to crush particles between the two pressing plates 61, the particles extrude the fifth rod 73 and enable the fifth rod 73 to slide in the second cavity 71 due to the fact that the particles are filled between the two pressing plates 61, and further enable the fifth rod 73 to extrude the first air bag 72 and enable the first air bag 72 to be compressed; simultaneously because the tip of No. five pole 73 is the pointed cone setting, also will make the granule crowded garrulous, and then be convenient for fully break the granule between two broken teeth 62, realize the abundant grinding to the granule to can improve grinding efficiency and grinding effect.

As an embodiment of the present invention, a hemispherical shell 81 is fixedly connected to the side wall of the crushing tooth 62; the hemispherical shell 81 is communicated with the first air bag 72; the surface of the hemispherical shell 81 is provided with a plurality of through holes; the opening of the through hole is fixedly connected with soft rubber 82, so that the hemispherical shell 81 is in a closed state; one side of the soft rubber 82, which is positioned outside the hemispherical shell 81, is fixedly connected with a conical tooth 83; when the grinding machine works, after the first air bag 72 is compressed, the first air bag 72 is communicated with the hemispherical shell 81, so that gas in the first air bag 72 enters the hemispherical shell 81, the soft rubber 82 begins to expand and swell, then the conical teeth 83 extrude particles, the particles are crushed, the particles between the two crushing teeth 62 are conveniently and fully crushed, the particles are fully ground, and the grinding efficiency and the grinding effect can be improved; a hemispherical shell 81 is provided in the lower half of the crushing teeth 62.

As an embodiment of the present invention, an elastic plate 9 is fixedly connected between the pressure plate 61 and the side wall of the grinding wheel 44, and the longitudinal section of the elastic plate 9 is in a herringbone shape; in operation, the elastic plate 9 can prevent particles and powder from entering the slideway of the grinding wheel 44 at the fourth rod 54, when the distance between the pressing plate 61 and the grinding wheel 44 is increased, the elastic plate 9 is stretched, and when the distance between the pressing plate 61 and the grinding wheel 44 is reduced, the elastic plate 9 is gradually restored, and meanwhile, the compression of the particles between the pressing plate 61 and the side wall of the grinding wheel 44 is not influenced.

As an embodiment of the present invention, a second airbag 10 is fixed to an inner side wall of the elastic plate 9; the surface of the second air bag 10 is connected with an air injection pipe 11, and the other end of the air injection pipe 11 penetrates through and is fixedly connected in the wall body of the elastic plate 9; the during operation, the tip of jet-propelled pipe 11 is provided with the filter screen, can avoid the powder to get into in the jet-propelled pipe 11, when the distance between clamp plate 61 and grinding miller 44 reduces, will make No. two gasbags 10 receive the extrusion, make No. two inside gas of gasbag 10 spout from jet-propelled pipe 11, can blow away the powder on the elastic plate 9 lateral wall, and then realize the cleanness to elastic plate 9, make the powder of being stained with on the elastic plate 9 lateral wall get back to the bottom of grinding barrel 2, continue to grind, make it become more tiny powder.

The working principle is as follows: the motor 41 is started, so that the motor 41 drives the disc 43 to rotate through the rotating shaft 42, one end of the telescopic rod 46 on the side wall of the disc 43 slides along the guide groove 47, the telescopic rod 46 moves up and down in the sliding groove 45, and the grinding wheel 44 and the connecting rod 48 move up and down, so that the particles can be extruded up and down, the particles can be ground more fully, and the grinding efficiency and the grinding effect can be improved; when the telescopic rod 46 slides in the guide groove 47, the second rod 462 slides in the first hole 464, when the first rod 461 moves downwards in the sliding groove 45, the spring in the first hole 464 is compressed, when the first rod 461 moves upwards in the sliding groove 45, the spring starts to restore, and then the second rod 462 gradually extends out of the first hole 464, so that the ball 463 at one end of the second rod 462 can smoothly slide in the guide groove 47; when the grinding wheel 44 moves downwards, the third rod 53 is gradually contacted with the inner side wall of the bottom of the grinding barrel 2, so that the third rod 53 starts to extrude the spring at the top of the third rod, and meanwhile, the fourth rod 54 moves towards the left side and the right side of the grinding wheel 44, so that two adjacent fourth rods 54 move towards each other, the particles between two adjacent grinding wheels 44 are extruded, the full grinding of the particles is facilitated, and the grinding efficiency and the grinding effect can be improved; when the rod No. four 54 between two adjacent grinding wheels 44 moves towards each other, the particles between the two pressing plates 61 are extruded, meanwhile, the crushing teeth 62 can crush the particles, and meanwhile, the particles between the pressing plates 61 and the side walls of the grinding wheels 44 are also extruded when the pressing plates 61 return, so that the particles are sufficiently ground, and the grinding efficiency and the grinding effect can be improved; the fifth rod 73 and the first air bag 72 are arranged at the lower half part of the crushing tooth 62, when the crushing tooth 62 starts to crush particles between the two pressing plates 61, the particles extrude the fifth rod 73 due to the fact that the particles are filled between the two pressing plates 61, the fifth rod 73 slides in the second cavity 71, and the fifth rod 73 extrudes the first air bag 72, and the first air bag 72 is compressed; meanwhile, the end part of the fifth rod 73 is arranged in a pointed cone shape, so that particles are crushed, the particles between the two crushing teeth 62 are crushed sufficiently, the particles are sufficiently ground, and the grinding efficiency and the grinding effect are improved; after the first air bag 72 is compressed, the first air bag 72 is communicated with the hemispherical shell 81, so that gas in the first air bag 72 enters the hemispherical shell 81, the soft rubber 82 begins to expand and swell, and then the conical teeth 83 extrude particles, so that the particles are crushed, the particles between the two crushing teeth 62 are conveniently and fully crushed, the particles are fully ground, and the grinding efficiency and the grinding effect can be improved; the hemispherical shell 81 is arranged at the lower half part of the crushing teeth 62; the elastic plate 9 can prevent particles and powder from entering the slideway of the grinding wheel 44 at the fourth rod 54, when the distance between the pressure plate 61 and the grinding wheel 44 is increased, the elastic plate 9 is stretched, and when the distance between the pressure plate 61 and the grinding wheel 44 is reduced, the elastic plate 9 is gradually restored to the original shape without influencing the extrusion of the particles between the pressure plate 61 and the side wall of the grinding wheel 44; the tip of jet-propelled pipe 11 is provided with the filter screen, can avoid the powder to get into in the jet-propelled pipe 11, when the distance between clamp plate 61 and grinding miller 44 reduces, will make No. two gasbags 10 receive the extrusion, make No. two inside gas of gasbag 10 spout from jet-propelled pipe 11, can blow away the powder on the elastic plate 9 lateral wall, and then realize the cleanness to elastic plate 9, make the powder of being stained with on the elastic plate 9 lateral wall get back to the bottom of grinding vessel 2, continue to grind, make it become more tiny powder.

The front, the back, the left, the right, the upper and the lower are all based on figure 3 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.