Green coke pitch mixing and grinding device for isostatic pressing graphite production

Abstract

The invention discloses a green coke pitch mixing and grinding device for isostatic pressing graphite production, and relates to the technical field of mixing and grinding, the green coke pitch mixing and grinding device comprises a fixed base, a grinding system, a mounting base and a power system, the power system is arranged on the mounting base, and the power system drives the grinding system to move; the cooling system is arranged on the outer side of the grinding system in a sleeving mode, the cooling system comprises a cooling air base, the top of the cooling air base is connected with a lower air cylinder, and one end of the lower air cylinder is rotationally connected with an upper air cylinder; an air bin is formed in the cooling air base, and multiple sets of air inlets are formed in the side wall of one side of the air bin and communicate with an external cold air system. The air inlet is located in the side wall of the air bin, wherein the air direction of cold air blowing to the grinding system is opposite to the rotating direction of the grinding system. Head-wind cooling of the cylinder is achieved, and the cooling effect of cold air on grinding equipment is optimized.

Description

Technical Field

[0001] The invention relates to the technical field of mixed grinding, and in particular to a green coke pitch mixed grinding device for isostatic graphite production. Background Art

[0002] Isostatic graphite is a new type of graphite material developed on the basis of "three high graphite" (high strength, high density, and high purity). During its molding process, liquid pressure is applied uniformly and constantly to produce graphite materials with excellent properties.

[0003] In the production process of isostatic graphite, the mixed grinding of green coke (petroleum coke or asphalt coke) and asphalt is a key step in preparing uniform raw materials, which directly affects the quality of subsequent molding and sintering. The traditional mixed grinding process is to put the pre-treated green coke particles and asphalt particles into the grinding equipment according to the required ratio (usually 80:20-85:15) for full grinding, and then test the particle size after grinding. During the grinding process, the local temperature of the grinding equipment will be too high, and the softening point of asphalt is usually 50-70°C. If the temperature exceeds the softening point of asphalt during the grinding process, the asphalt will melt and agglomerate, resulting in uneven mixture, affecting the quality of subsequent molding and sintering, and the molten asphalt is easy to adhere to the grinding medium (such as ball mill steel balls) or the inner wall of the equipment, reducing the grinding efficiency and increasing the difficulty of cleaning.

[0004] A common way to solve the above-mentioned asphalt agglomeration and asphalt adhesion problems on small-scale production lines is through intermittent operation: the grinding time of each batch is controlled within 15 to 30 minutes, and the machine is stopped for cooling before continuing to avoid heat accumulation caused by long-term operation. Although this method is simple and easy, intermittent shutdown leads to low production efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a raw coke pitch mixing and grinding device for isostatic graphite production, so as to solve the problem of low production efficiency caused by intermittent shutdown in order to avoid heat accumulation caused by long-term operation during the mixing and grinding process.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A raw coke pitch mixing and grinding device for isostatic graphite production, comprising:

[0008] Fixed base;

[0009] A grinding system, wherein the grinding system is installed on a fixed base;

[0010] A mounting base and a power system, wherein the mounting base is connected to one end of the fixed base, and the power system is disposed on the mounting base, and the power system is connected to the grinding system to drive the grinding system to move; and

[0011] A cooling system, wherein the cooling system is sleeved on the outside of the grinding system and comprises a cooling air seat, the top of the cooling air seat is connected to a lower air cylinder, and one end of the lower air cylinder is rotatably connected to an upper air cylinder;

[0012] The upper wind cylinder cooperates with the lower wind cylinder through rotation to form a cylindrical structure, and the cylindrical structure is sleeved on the outside of the grinding system;

[0013] An air bin is provided inside the cooling air seat, and a plurality of air inlets are provided on a side wall of the air bin, and the plurality of air inlets are connected to an external cooling air system;

[0014] The air inlet is located on the side wall of the wind bin so that the wind direction of the cold air blowing toward the grinding system is opposite to the rotation direction of the grinding system.

[0015] As a further solution of the present invention: the fixed base includes a base body, and a first bearing mounting seat and a second bearing mounting seat are respectively provided at both ends of the base body. Bearings are provided in the first bearing mounting seat and the second bearing mounting seat, and are rotatably connected to the grinding system through the bearings.

[0016] As a further solution of the present invention: the grinding system includes a horizontal cylinder, one end of the cylinder is provided with end cover 1, the other end of the cylinder is provided with end cover 2, and the end cover 1 is fixedly connected to a feeder, and the end cover 2 is fixedly connected to a discharge part, the feeder and the discharge part are both rotatably connected to corresponding bearings, and the end of the cylinder close to the end cover 2 is connected to a transmission gear, and the transmission gear is connected to the power system.

[0017] As a further solution of the present invention: the grinding system also includes liner plates, and the liner plates are provided in multiple groups, the multiple groups of liner plates are arranged inside the cylinder, and the multiple groups of liner plates are fixedly connected to the cylinder.

[0018] As a further solution of the present invention: a partition plate is arranged in the middle of the cylinder, and the partition plate is located between two adjacent lining plates at the center line position of the cylinder. A discharge grate plate is also arranged on the side of the cylinder close to the discharge part, and the discharge grate plate is connected to the corresponding lining plate.

[0019] As a further solution of the present invention: the discharge grate plate is in the shape of a horizontally lying truncated cone, and the conical surface of the discharge grate plate faces one side of the discharge portion.

[0020] As a further solution of the present invention: both the partition plate and the discharge grate plate are provided with sieve holes, and the aperture of the sieve holes of the partition plate is larger than the aperture of the sieve holes on the discharge grate plate.

[0021] As a further solution of the present invention: a long strip air outlet is arranged on the top of the upper wind cylinder, and the air inlet is arranged obliquely, with the inclination direction toward one side of the cylinder body.

[0022] As a further solution of the present invention: a wind direction plate is rotatably arranged inside the wind bin, the wind direction plate is located on the opposite side of the air inlet, a wind direction servo motor is arranged outside the cooling air seat, and the wind direction servo motor is connected to the rotating shaft of the wind direction plate;

[0023] A wind side surface 1 and a wind side surface 2 are arranged on a side wall connected to one side of the wind deflector in the wind bin, wherein the wind side surface 2 is located at the bottom, and both the wind side surface 1 and the wind side surface 2 are arranged to be inclined outward;

[0024] The deflection direction of the prime wind direction plate is limited by the wind side surface one and the wind side surface two, thereby changing the wind direction of the cold wind blowing toward the cylinder.

[0025] As a further solution of the present invention: the power system includes a driving motor and a reducer, the output shaft of the driving motor is connected to the reducer, the other side of the reducer is connected to a transmission pinion, and the transmission pinion is meshingly connected to the transmission gear.

[0026] Beneficial effects of the present invention:

[0027] The present invention realizes cooling of the coke and asphalt mixing grinding equipment in the isostatic graphite production process by providing a cooling system instead of intermittent shutdown, thereby avoiding low production efficiency caused by intermittent shutdown, and by setting the position of the air inlet so that the wind direction of the cold air entering the air inlet is opposite to the rotation direction of the cylinder, thereby realizing counterwind cooling of the cylinder and optimizing the cooling effect of the cold air on the grinding equipment.

[0028] The present invention also provides a wind deflector, wind side surface one and wind side surface two, and limits the deflection direction of the wind deflector through wind side surface one and wind side surface two, thereby changing the wind direction of the cold wind blowing toward the cylinder, so that the cylinder is always in counterwind cooling, thereby ensuring the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0031] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0032] Figure 3 It is a schematic diagram of the internal structure of the cooling system of the present invention after being unfolded;

[0033] Figure 4 It is a schematic diagram of the fixed base structure of the present invention;

[0034] Figure 5 It is a schematic diagram of the internal structure of the grinding system of the present invention;

[0035] Figure 6 It is a schematic diagram of the structure of the discharging grate plate of the present invention;

[0036] Figure 7 It is a schematic diagram of the cross-sectional structure of the cooling system of the present invention;

[0037] Figure 8 This is a schematic diagram of the wind direction adjustment state of the wind direction plate of the present invention Figure 1 ;

[0038] Fig. 9 The wind direction of the wind direction plate of the present invention is shown in FIG. Figure 2 .

[0039] In the figure: 1. fixed base; 11. base body; 12. first bearing mounting seat; 13. second bearing mounting seat; 14. fixed foot; 2. grinding system; 21. cylinder; 22. end cover one; 23. end cover two; 24. feeder; 25. discharge part; 26. transmission large gear; 27. lining plate; 28. partition plate; 29. ​​unloading grate plate; 210. coarse grinding bin; 211. fine grinding bin; 3. cooling system; 31. cooling air seat; 32. lower air duct; 33. upper air duct; 34. air outlet; 35. air inlet; 36. wind bin; 37. wind direction plate; 38. wind direction servo motor; 39. wind side one; 310. wind side two; 4. mounting base; 5. power system; 51. drive motor; 52. transmission pinion; 53. reducer. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Embodiment 1

[0042] like Figure 1-Figure 9 As shown, this embodiment provides a raw coke pitch mixing and grinding device for isostatic graphite production, the device includes a fixed base 1 fixed on the production line, a grinding system 2 is installed on the fixed base 1, a cooling system 3 is sleeved on the outer side of the grinding system 2, and a mounting base 4 is provided on one side of the fixed base 1, a power system 5 is installed on the mounting base 4, and the power system 5 is connected to the grinding system 2 to drive the grinding system 2 to move.

[0043] By installing a cooling system 3 around the outside of the grinding system 2 instead of intermittent shutdown, the coke and asphalt mixed grinding equipment in the isostatic graphite production process is cooled to avoid the local temperature of the grinding equipment being too high, causing asphalt agglomeration (asphalt lumps) and asphalt adhesion (molten asphalt is easy to adhere to grinding media such as ball mill steel balls or the inner wall of the equipment).

[0044] like Figure 2 and Figure 4 As shown, in this embodiment, the fixed base 1 includes a horizontal semi-I-shaped base body 11, and a plurality of sets of fixed feet 14 are symmetrically arranged on both sides of the base body 11. The fixed feet 14 are connected to the ground by bolts to achieve firm fixation of the base body 11, wherein a first bearing mounting seat 12 and a second bearing mounting seat 13 are respectively arranged at both ends of the base body 11, and bearings are installed on the first bearing mounting seat 12 and the second bearing mounting seat 13, and the grinding system 2 is connected to the corresponding bearings at both ends to achieve stable rotation of the grinding system 2 on the fixed base 1.

[0045] Furthermore, if Figure 2-Figure 5 As shown, in this embodiment, the grinding system 2 includes a horizontal cylinder 21, an end cover 1 22 is provided at one end of the cylinder 21, an end cover 23 is provided at the other end of the cylinder 21, a feeder 24 is fixedly connected to the end cover 1 22, and a discharge portion 25 is fixedly connected to the end cover 23, wherein the feeder 24 is connected to the corresponding bearing at one end close to the end cover 1 22, and the discharge portion 25 is also connected to the corresponding bearing at one end close to the end cover 23, and a transmission gear 26 is connected to the end of the cylinder 21 close to the end cover 23. The transmission gear 26 is driven to rotate by the power system 5, thereby driving the cylinder 21 to rotate on the fixed base 1 to achieve mixed grinding.

[0046] It should be noted in this embodiment that the above-mentioned feeder 24 and discharge part 25 are both existing technologies, and their structures are consistent with the feed and discharge end structures of existing ball mills, and the specific structures are not repeated here.

[0047] Furthermore, Figure 5 As shown, the grinding system 2 of this embodiment also includes a liner 27 arranged inside the cylinder 21, and the liner 27 is provided with at least two groups, and the liner 27 is fixed to the cylinder 21 by multiple groups of bolts, and a partition plate 28 is provided in the middle of the cylinder 21, and the partition plate 28 is located between two adjacent liner plates 27 in the middle area of ​​the cylinder 21, and divides the internal space of the cylinder 21 into a coarse grinding bin 210 and a fine grinding bin 211, wherein the partition plate 28 can be fixedly connected to the cylinder 21, and can also be fixedly connected to the liner 27, and a discharge grate plate 29 is also connected to the outer side of the liner 27 near the end cover 23 to further screen the mixture after fine grinding.

[0048] It should be noted that in this embodiment, Figure 6 As shown, the discharge grate plate 29 of this embodiment is in the shape of a horizontal truncated cone. The contact area (screening area) between the discharge grate plate 29 and the mixed material is increased by setting the conical surface, thereby accelerating the screening of the raw materials. In addition, during the rotational grinding process, the grinding media inside the fine grinding bin 211 will hit the discharge grate plate 29 as it rotates, and further through the vibration of the discharge grate plate 29, the screening speed of the mixed material is accelerated while preventing the sieve holes on the discharge grate plate 29 from being blocked.

[0049] In this embodiment, both the partition plate 28 and the discharge grate plate 29 are provided with sieve holes, and the aperture of the sieve holes of the partition plate 28 is larger than the aperture of the sieve holes on the discharge grate plate 29, so as to facilitate the movement of the mixed material along the conveying direction during the multi-stage grinding process.

[0050] Furthermore, the sieve hole diameter of the discharging grate plate 29 is smaller than the diameter of the grinding medium inside the fine grinding chamber 211, and the sieve hole diameter of the partition plate 28 is smaller than the diameter of the grinding medium inside the coarse grinding chamber 210 and the fine grinding chamber 211, so as to avoid mixing of the grinding media and affecting the grinding effect of the coarse grinding chamber 210 or the fine grinding chamber 211.

[0051] Furthermore, if Figure 1-Figure 3 and Figure 7-Figure 8 As shown, the cooling system 3 in this embodiment protects the cooling air seat 31 set inside the frame of the base body 11, and a lower air cylinder 32 is connected to the top of the cooling air seat 31, and an upper air cylinder 33 is set on one side of the lower air cylinder 32 through a hinge rotation, and the lower air cylinder 32 and the upper air cylinder 33 are both semicircular cylindrical structures, wherein the upper air cylinder 33 can form a cylindrical structure by rotating with the lower air cylinder 32, and is sleeved on the outside of the cylinder 21, and a gap is set between the cylindrical structure and the outer side of the cylinder 21 to avoid affecting the rotation of the cylinder 21, and the gap is not easy to be too large to avoid excessive escape of cold air, and the size of the gap is set according to the actual design. A long strip air outlet 34 is also set on the top of the upper air cylinder 33 for the cooling wind to swirl and escape. In addition, an air bin 36 is provided inside the cooling air seat 31, and a plurality of air inlets 35 are provided on a side wall of the air bin 36. The plurality of air inlets 35 are connected to an external cold air system (the cold air system is the prior art) to realize the introduction of external cold air.

[0052] It should be noted that the cooling air seat 31 and the lower air cylinder 32 can be formed separately or integrally to increase the strength of the overall structure. The air inlet 35 of the present invention is arranged to be inclined upward (the outlet position inside the air bin 36 is higher than the air inlet position outside), so that the cold air has an initial air inlet angle and is better blown toward the rotating cylinder 21.

[0053] Furthermore, if Figure 3As shown, the power system 5 in this embodiment includes a driving motor 51 and a reducer 53 installed on the mounting base 4, the output shaft of the driving motor 51 is connected to the reducer 53, and a base is provided on the mounting base 4 close to the transmission gear 26, a transmission pinion 52 is rotatably provided on the base, the transmission pinion 52 is meshed and connected with the transmission gear 26, and the transmission pinion 52 is connected to the reducer 53 to realize power transmission, the power is provided by the driving motor 51, transmitted to the reducer 53 for deceleration, and then transmitted to the transmission pinion 52, so that the transmission pinion 52 rotates.

[0054] During operation, the drive motor 51 is started to drive the transmission pinion 52 to rotate, and the transmission pinion 52 drives the transmission gear 26 to rotate, thereby driving the cylinder 21 to rotate, and the pre-treated coke particles and asphalt particles are introduced into the cylinder from the feeder 24 for mixed grinding. During the grinding process, the external cold air system and the air inlet 35 are connected, and the external cold air is introduced into the wind bin 36 to cool the rotating cylinder 21.

[0055] By air cooling the outer side of the cylinder 21, the local temperature of the grinding equipment is reduced during the grinding process, the asphalt softening point is avoided to be exceeded, and the asphalt agglomeration and asphalt adhesion problems are solved.

[0056] Embodiment 2

[0057] Furthermore, in order to optimize the cooling effect of the cold air on the grinding equipment, the present embodiment sets the position of the air inlet 35 according to the rotation direction of the cylinder 21 on the basis of the first embodiment, so that the wind direction of the cold air entering the air inlet 35 is opposite to the rotation direction of the cylinder 21, thereby realizing the counter-wind cooling of the cylinder 21. Since the airflow direction of the cold air is opposite to the movement direction of the surface of the cylinder 21, the relative speed (V 相对 =V 风 +V 筒体表面 ) increases significantly, a higher relative speed will enhance turbulence and improve heat transfer efficiency (increasing the flow rate will enhance the momentum exchange between the fluid and the wall, promote turbulent mixing, thereby improving heat transfer efficiency, and according to Newton's cooling law Q=hAΔT, the convective heat transfer coefficient h is positively correlated with the relative speed), and the cooling effect is better.

[0058] Embodiment 3

[0059] In the actual process of mixing and grinding raw coke and asphalt, the operator will flexibly adjust the rotation direction (clockwise or counterclockwise rotation of the cylinder 21) according to the grinding effect and equipment conditions. If the rotation in a certain direction causes the mixture to be uneven or the equipment to wear too quickly, the grinding effect will be improved by alternating the rotation direction.

[0060] However, due to the direction of the grinding equipment, the relative position of the initially set cold wind blowing direction and the direction of the cylinder 21 will change (headwind becomes tailwind), resulting in different cooling effects when different grinding directions are used, thereby affecting the mixed grinding effect of the materials.

[0061] Based on this, this embodiment is based on the second embodiment. Figure 7-Figure 9 As shown, a wind deflector 37 is rotatably provided on the side opposite to the air inlet 35 on the inside of the wind bin 36, and a wind direction servo motor 38 is provided on the outside of the cooling air seat 31. The wind direction servo motor 38 is connected to the rotating shaft of the wind deflector 37 to realize wind driving of the wind deflector 37. A wind side surface 1 39 tilted outward is provided on the upper end of the side wall connected to the wind deflector 37 on the inside of the wind bin 36, and a wind side surface 2 310 tilted outward is provided on the lower end of the side wall connected to the wind deflector 37 on the inside of the bin 36. The deflection direction of the wind deflector 37 is limited by the wind side surface 1 39 and the wind side surface 2 310, thereby changing the wind direction of the cold wind blowing toward the cylinder 21, so that the cylinder 21 is always in the counterwind cooling, and the cooling effect is guaranteed.

[0062] During operation, the drive motor 51 is started to drive the transmission pinion 52 to rotate, and the transmission pinion 52 drives the transmission gear 26 to rotate, thereby driving the cylinder 21 to rotate, and the pre-treated coke particles and asphalt particles are introduced from the feeder 24 into the cylinder for mixed grinding. During the grinding process, the external cold air system and the air inlet 35 are connected to introduce the external cold air into the wind bin 36. According to the rotation direction of the cylinder 21, the wind direction servo motor 38 is started to drive the wind direction plate 37 to deflect, and the wind direction of the cold air entering is adjusted so that the wind direction of the cold air blowing toward the cylinder 21 is opposite to the rotation direction of the cylinder 21 (such as Figure 8 and Fig. 9 The rotating cylinder 21 is cooled, and the ground mixed material is screened by the discharge grate plate 29 and discharged from the discharge part 25.

[0063] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships 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, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot 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 invention, unless otherwise specified, "multiple" means two or more.

[0064] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A raw coke pitch mixing and grinding device for isostatic graphite production, characterized in that: include: A fixed base (1); A grinding system (2), wherein the grinding system (2) is mounted on a fixed base (1); A mounting base (4) and a power system (5), wherein the mounting base (4) is connected to one end of the fixed base (1), and the power system (5) is arranged on the mounting base (4), and the power system (5) is connected to the grinding system (2) to drive the grinding system (2) to move; and A cooling system (3), wherein the cooling system (3) is sleeved on the outside of the grinding system (2), and the cooling system (3) comprises a cooling air seat (31), the top of the cooling air seat (31) is connected to a lower air cylinder (32), and one end of the lower air cylinder (32) is rotatably connected to an upper air cylinder (33); The upper wind cylinder (33) cooperates with the lower wind cylinder (32) by rotating to form a cylindrical structure, and the cylindrical structure is sleeved on the outside of the grinding system (2); An air bin (36) is provided inside the cooling air seat (31), and a plurality of groups of air inlets (35) are provided on a side wall of one side of the air bin (36), and the plurality of groups of air inlets (35) are connected to an external cooling air system; The air inlet (35) is located on the side wall of the wind bin (36) so that the wind direction of the cold air blowing toward the grinding system (2) is opposite to the rotation direction of the grinding system (2).

2. A green coke pitch mixing and grinding device for isostatic graphite production according to claim 1, characterized in that: The fixed base (1) comprises a base body (11), and a first bearing mounting seat (12) and a second bearing mounting seat (13) are respectively arranged at two ends of the base body (11), and the first bearing mounting seat (12) and the second bearing mounting seat (13) are both provided with bearings, and are rotatably connected to the grinding system (2) via the bearings.

3. The green coke pitch mixing and grinding device for isostatic graphite production according to claim 1, characterized in that: The grinding system (2) comprises a horizontal cylinder (21), one end of the cylinder (21) is provided with an end cover 1 (22), the other end of the cylinder (21) is provided with an end cover 2 (23), and the end cover 1 (22) is fixedly connected to a feeder (24), and the end cover 2 (23) is fixedly connected to a discharge portion (25), the feeder (24) and the discharge portion (25) are both rotatably connected to corresponding bearings, and the end of the cylinder (21) close to the end cover 2 (23) is connected to a transmission gear (26), and the transmission gear (26) is connected to the power system (5).

4. A green coke pitch mixing and grinding device for isostatic graphite production according to claim 3, characterized in that: The grinding system (2) further comprises a liner (27), wherein the liner (27) is provided in a plurality of groups, the plurality of groups of the liner (27) are arranged inside the cylinder (21), and the plurality of groups of the liner (27) are all fixedly connected to the cylinder (21).

5. The green coke pitch mixing and grinding device for isostatic graphite production according to claim 4, characterized in that: A partition plate (28) is provided in the middle of the cylinder (21), and the partition plate (28) is located between two adjacent lining plates (27) at the centerline position of the cylinder (21). A discharge grate plate (29) is also provided on one side of the cylinder (21) close to the discharge portion (25), and the discharge grate plate (29) is connected to the corresponding lining plate (27).

6. A green coke pitch mixing and grinding device for isostatic graphite production according to claim 5, characterized in that: The discharge grate plate (29) is in the shape of a horizontally lying truncated cone, and the conical surface of the discharge grate plate (29) faces the side of the discharge portion (25).

7. A green coke pitch mixing and grinding device for isostatic graphite production according to claim 5 or 6, characterized in that: The partition plate (28) and the discharge grate plate (29) are both provided with sieve holes, and the aperture of the sieve holes of the partition plate (28) is larger than the aperture of the sieve holes on the discharge grate plate (29).

8. The green coke pitch mixing and grinding device for isostatic graphite production according to claim 3, characterized in that: The top of the upper air cylinder (33) is provided with a long strip air outlet (34), and the air inlet (35) is arranged at an angle, with the inclination direction facing one side of the cylinder body (21).

9. A green coke pitch mixing and grinding device for isostatic graphite production according to claim 3 or 8, characterized in that: A wind direction plate (37) is rotatably arranged inside the wind bin (36), and the wind direction plate (37) is located on the opposite side of the air inlet (35); a wind direction servo motor (38) is arranged outside the cooling air seat (31), and the wind direction servo motor (38) is connected to the rotating shaft of the wind direction plate (37); A wind side surface 1 (39) and a wind side surface 2 (310) are arranged on a side wall of one side of the wind silo (36) connected to the wind deflector (37), wherein the wind side surface 2 (310) is located at the bottom, and the wind side surface 1 (39) and the wind side surface 2 (310) are both arranged to be inclined outwards; The deflection direction of the prime wind direction plate (37) is limited by the wind side surface one (39) and the wind side surface two (310), thereby changing the wind direction of the cold wind blowing toward the cylinder (21).

10. The green coke pitch mixing and grinding device for isostatic graphite production according to claim 3, characterized in that: The power system (5) comprises a driving motor (51) and a reducer (53), wherein the output shaft of the driving motor (51) is connected to the reducer (53), and the other side of the reducer (53) is connected to a transmission pinion (52), and the transmission pinion (52) is meshingly connected to the transmission gear (26).

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