CN211517860U

CN211517860U - Multi-ball die assembly for preparing refractory balls

Info

Publication number: CN211517860U
Application number: CN201921412645.0U
Authority: CN
Inventors: 楚新伟; 纪永强; 申喜安
Original assignee: Zhengzhou Bosheng Refractory Co ltd
Current assignee: Zhengzhou Bosheng Refractory Co ltd
Priority date: 2019-08-28
Filing date: 2019-08-28
Publication date: 2020-09-18
Anticipated expiration: 2029-08-28

Abstract

The utility model relates to the field of refractory ball preparation, in particular to a multi-ball die assembly for refractory ball preparation, which comprises a frame, a feeding mechanism, a cylinder, a storage bin, a first guide channel, a first spring, a lower stamping mechanism, an upper stamping mechanism, a second spring, a third spring, a hydraulic push rod and a second guide channel; the hydraulic push rod, the third spring, the upper punching mechanism, the lower punching mechanism and the second spring are sequentially arranged from top to bottom, four vertical third springs are uniformly and fixedly arranged on four corners of the upper punching mechanism respectively, and the pushing ends of the hydraulic push rod are fixedly connected with the other ends of the four third springs respectively; four vertical second springs are uniformly and fixedly arranged on four corners of the lower punching mechanism respectively, and the other ends of the four second springs are fixed at the bottom of the machine base. The second spring and the third spring are arranged, so that the strength uniformity of the molded pellets is improved; the convex part and the concave part are arranged, so that the transverse displacement between the upper punching mechanism and the lower punching mechanism can be reduced, and the pellet forming effect is improved.

Description

Multi-ball die assembly for preparing refractory balls

Technical Field

The utility model relates to a fire-resistant ball preparation field, concretely relates to fire-resistant ball preparation is with many balls die assembly's technical field of structure.

Background

The refractory ball is made up of industrial alumina and refractory kaolin through scientific formula, shaping and high-temp calcining. The mechanical strength is high, and the service cycle is long; the chemical stability is good, and the chemical reaction with materials is avoided; the refractory ceramic ball has good high temperature resistance, and the highest heat-resistant temperature of the refractory ceramic ball can reach 1900 ℃. The catalyst is particularly suitable for high-low temperature shift converters, reforming furnaces, hydroconverters, desulfurizing tanks and methanation furnaces of fertilizer plants, and has the functions of dispersing gas and liquid, supporting, covering and protecting the catalyst. The refractory porcelain ball can also be used in hot blast stoves and heating conversion equipment in the steel industry.

The refractory ball is pressed into required size by using a die forming device during press forming, and then the refractory ball is prepared by sintering. The application is as follows: CN201820563768.3, entitled full-automatic numerical control equipment for forming refractory balls and multiple balls, which is described in the patent specification, has the problems that when stamping power is provided in the upper and lower stamping mechanisms, the strength of the formed refractory balls is not uniform, and cracks, breakage and the like occur during high-temperature firing, thereby affecting the quality of the finished refractory balls; simultaneously, when this application was used, found that this shaping numerical control equipment's guide mechanism can't adjust, influenced the shaping quality of fire-resistant ball.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a many balls die assembly is used in fire-resistant ball preparation has solved the uneven problem of pelletizing atress when moulding-die shaping of upper and lower punching press mechanism, has optimized demoulding structure and guide structure simultaneously, has promoted the result of use of this device.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the multi-ball die assembly for preparing the refractory balls comprises a machine base, a feeding mechanism, a cylinder, a storage bin, a first material guide channel, a first spring, a lower punching mechanism, an upper punching mechanism, a second spring, a third spring, a hydraulic push rod and a second material guide channel; the hydraulic push rod, the third spring, the upper punching mechanism, the lower punching mechanism and the second spring are sequentially arranged from top to bottom, four vertical third springs are uniformly and fixedly arranged on four corners of the upper punching mechanism respectively, and the pushing ends of the hydraulic push rod are fixedly connected with the other ends of the four third springs respectively; four vertical second springs are uniformly and fixedly arranged on four corners of the lower punching mechanism respectively, and the other ends of the four second springs are fixed at the bottom of the machine base; a feeding mechanism used for feeding the lower punching mechanism is arranged beside the lower punching mechanism, a transmission end of the air cylinder is fixedly connected with the feeding mechanism, a bin used for feeding is arranged above the feeding mechanism, a first material guide channel is arranged above the feeding mechanism, the first material guide channel is obliquely and downwards arranged along the direction far away from the air cylinder, the bottom of the first material guide channel is fixedly connected with one end, far away from the air cylinder, of the upper surface of the feeding mechanism, the lowest position of the first material guide channel extends to one side far away from the air cylinder and extends out of the feeding mechanism, a vertical first spring is fixedly arranged on each of two sides of the bottom of the upper portion of the first material guide channel, and the other end of the first spring is fixedly connected with the feeding mechanism; a second material guide channel is arranged on one side, far away from the air cylinder, of the lower stamping mechanism, the second material guide channel is obliquely and downwards arranged along the direction far away from the air cylinder, and the highest position of the second material guide channel is lower than the lowest position of the first material guide channel.

Furthermore, a plurality of protruding parts are uniformly arranged on the upper surface of the lower punching mechanism, and a plurality of concave parts matched with the protruding parts are uniformly arranged on the lower surface of the upper punching mechanism.

And a lower nozzle and an upper nozzle are arranged above the lower punching mechanism and below the upper punching mechanism, the feeding end of the lower nozzle and the feeding end of the upper nozzle are respectively communicated with the discharging end of the release agent storage tank, the spraying end of the lower nozzle points to the upper surface of the lower punching mechanism, and the spraying end of the upper nozzle points to the lower surface of the upper punching mechanism.

Furthermore, a cross rod is welded at the bottom of the upper part of the second material guiding channel, a fixing block is respectively arranged on the machine bases close to the two sides of the second material guiding channel, a clamping groove is fixedly arranged on the fixing block, and the opening of the clamping groove is upward; two ends of the cross rod are respectively and fixedly provided with a vertical rod, the vertical rods are perpendicular to the cross rod and project along the axial direction of the cross rod, and the included angle between each vertical rod and the second material guide channel is 40-75 degrees.

Furthermore, the upper half part of the second material guiding channel is a buffer area, and the lower half part of the second material guiding channel is a filtering area.

Further, the upper nozzle and the lower nozzle are atomizing nozzles.

Furthermore, a through hole is formed in the fixing block, a plurality of threaded holes are formed in the machine base, and the fixing block is connected with the machine base through bolts.

Compared with the prior art, the utility model discloses can reach one of following beneficial effect at least:

1. the first spring is arranged, so that the buffering effect of the first material guide channel on the molded pellets can be improved.

2. The second spring and the third spring are arranged, so that the strength uniformity of the molded pellets can be improved.

3. The convex part and the concave part are arranged, so that the transverse displacement between the upper punching mechanism and the lower punching mechanism can be reduced, and the forming effect of the pellets is improved.

4. The upper nozzle and the lower nozzle are arranged, and the release agent is sprayed on the surface of the die, so that the demolding effect of the molded pellets can be improved.

5. The height position of the second material guide channel is adjustable, and the second material guide channel can be adjusted according to actual use scenes.

6. The second guide channel is provided with a buffer area and a filtering area, so that the using effect of the device is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of another view angle of the present invention.

Fig. 3 is a schematic structural diagram of the working state of the upper and lower pressing mechanisms of the present invention.

Fig. 4 is a schematic structural diagram of the working state of the upper and lower pressing mechanisms of the present invention.

Fig. 5 is a schematic structural diagram of the working state of the feeding mechanism of the present invention.

Fig. 6 is a schematic structural diagram of another view angle of fig. 5.

Fig. 7 is a partially enlarged view of a portion a in fig. 6.

In the figure: 1-a machine base; 2-a feeding mechanism; 3-a cylinder; 4-a storage bin; 5-a first material guiding channel; 6-a first spring; 7-lower punch mechanism; 8-upper punch mechanism; 9-a second spring; 10-a third spring; 11-a hydraulic push rod; 12-a second material guiding channel; 13-fixing block; 14-a cross-bar; 15-a card slot; 16-a lower nozzle; 17-an upper nozzle; 18-a boss; 19-a recess; 20-a mold release agent storage tank; 21-a buffer area; 22-a filtration zone; 24-finished product box; 25-waste bin; 26-a vertical rod; 27-a threaded hole; 28-bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1:

as shown in fig. 1-6, the multi-ball die assembly for preparing refractory balls comprises a machine base 1, a feeding mechanism 2, a cylinder 3, a bin 4, a first material guiding channel 5, a first spring 6, a lower punching mechanism 7, an upper punching mechanism 8, a second spring 9, a third spring 10, a hydraulic push rod 11 and a second material guiding channel 12; the hydraulic push rod 11, the third spring 10, the upper punching mechanism 8, the lower punching mechanism 7 and the second spring 9 are sequentially arranged from top to bottom, four vertical third springs 10 are uniformly and fixedly arranged on four corners of the upper punching mechanism 8 respectively, and the pushing ends of the hydraulic push rod 11 are fixedly connected with the other ends of the four third springs 10 respectively; four vertical second springs 9 are uniformly and fixedly arranged on four corners of the lower punching mechanism 7 respectively, and the other ends of the four second springs 9 are fixed at the bottom of the machine base 1; a feeding mechanism 2 used for feeding the lower punching mechanism 7 is arranged beside the lower punching mechanism 7, a transmission end of a cylinder 3 is fixedly connected with the feeding mechanism 2, a bin 4 used for feeding is arranged above the feeding mechanism 2, a first material guide channel 5 is arranged above the feeding mechanism 2, the first material guide channel 5 is obliquely and downwardly arranged along the direction far away from the cylinder 3, the bottom of the first material guide channel 5 is fixedly connected with one end, far away from the cylinder 3, of the upper surface of the feeding mechanism 2, the lowest position of the first material guide channel 5 extends to one side far away from the cylinder 3 and extends out of the feeding mechanism 2, a vertical first spring 6 is fixedly arranged on each of two sides of the bottom of the upper part of the first material guide channel 5, and the other end of the first spring 6 is fixedly connected with the feeding mechanism 2; a second material guiding channel 12 is arranged on one side of the lower stamping mechanism 7, which is far away from the cylinder 3, the second material guiding channel 12 is obliquely and downwards arranged along the direction far away from the cylinder 3, and the highest position of the second material guiding channel 12 is lower than the lowest position of the first material guiding channel 5.

The lower punching mechanism 7 and the upper punching mechanism 8 are respectively used for loading a lower punching die and an upper punching die, when the feeding mechanism 2 sends a material onto the lower punching mechanism 7, and the hydraulic push rod 11 pushes the upper punching mechanism 8 to move downwards and contact and extrude with the lower punching mechanism 7, the material is extruded by the punching dies in the lower punching mechanism 7 and the upper punching mechanism 8 to complete forming; and because the depth of the spherical die in the upper stamping die is greater than that of the lower stamping die, when the upper stamping mechanism 8 is lifted, the formed refractory ball moves upwards along with the upper stamping mechanism 8.

The technical scheme of this patent application, at patent application number: on the basis of the technical scheme recorded in CN201820563768.3, the punching power of the lower punching mechanism 7 is cancelled, and four vertical third springs 10 are arranged between the upper punching mechanism 8 and the hydraulic push rod 11, so that the stress uniformity in the forming process of the refractory balls can be optimized, and the uniformity of the pellet strength of the refractory balls is improved. Specifically, after the bin 4 feeds the feeding mechanism 2, the cylinder 1 drives the feeding mechanism 2 to horizontally move to the lower punching mechanism 7 along the base 1 on which the feeding mechanism 2 is arranged, and reciprocates twice on the lower punching mechanism 7, so that the lower punching mechanism 7 is filled with materials, and then the cylinder 3 drives the feeding mechanism 2 to return to an initial position and feeds the feeding mechanism 2 by the bin 4; the hydraulic push rod 11 works to push the upper punch mechanism 8 to move downwards, as shown in fig. 3, the upper punch mechanism 8 is in contact with the lower punch mechanism 7, at the moment, the hydraulic push rod 11 continues to apply pressure to the upper punch mechanism 8, as shown in fig. 4, the upper punch mechanism 8 and the lower punch mechanism 7 slightly move downwards for a certain distance after being buffered by the arranged second spring 9, meanwhile, the third spring 10 buffers the reverse acting force of the lower punch mechanism 7 on the upper punch mechanism 8 and applies the buffer force to the four corners of the upper punch mechanism 8 again, so that the uniformity of the punching pressure of the upper punch mechanism 8 on the lower punch mechanism 7 is improved, and the uniformity of the strength of the molded pellets in the die can be improved; preferably, when the hydraulic push rod 11 pushes the upper punch mechanism 8 to extrude the lower punch mechanism 7, the pressure of the pushing end of the hydraulic push rod 11 is reduced for 2 seconds and then rapidly restored to the original pressure value, and the action is repeated for at least 2 times, at this time, the upper punch mechanism 8 and the lower punch mechanism 7 can do short-term up-and-down reciprocating motion through the arranged second spring 9 and the arranged third spring 10, so that the pellets in the die are pressed more 'ceramic', and the strength uniformity of the pellets is improved; then, the hydraulic push rod 11 works to drive the upper punch mechanism 8 to move upwards, meanwhile, the cylinder 3 drives the feeding mechanism 2 to perform filling for the lower punch mechanism 7, at this time, as the pellets move along with the upper punch mechanism 8, the pellets moving along with the upper punch mechanism 8 are recovered to the original position, the molded pellets are ejected out of the die and fall on the first material guiding channel 5 as shown in fig. 5, and as the first material guiding channel 5 is obliquely arranged and the bottom is provided with the first spring 6, when the molded pellets fall on the first material guiding channel 5, a certain buffering effect is achieved, and the molded pellets are prevented from directly falling on the first material guiding channel 5 to generate large impact force so as to generate deformation or cracks; the formed pellets fall on the second material guide channel 12 along the gradient of the first material guide channel 5 and fall into the finished product box 24 through the second material guide channel 12, and the compression forming work of the refractory balls is completed; after the feeding mechanism 2 finishes the filling work, the first material guide channel 5 is driven to move to the initial position, and the upper and lower punching mechanisms work in cooperation to continue the ball pressing operation.

Preferably, first guide channel 5 is ditch shape passageway, and constitutes for the rubber material, can promote the guide effect to the shaping pelletizing.

In order to achieve the technical effect of the present technical solution, the second spring 9 and the third spring 10 are the same high pressure resistant buffer spring, and the first spring 6 is a compression spring with low pressure and good deformation effect.

Example 2:

as shown in fig. 1 to 4, the present embodiment optimizes the structure of the punching mechanism for the above-described embodiment.

In the multi-ball die assembly for preparing the refractory balls, a plurality of convex parts 18 are uniformly arranged on the upper surface of the lower punching mechanism 7, and a plurality of concave parts 19 matched with the convex parts 18 are uniformly arranged on the lower surface of the upper punching mechanism 8. One embodiment is that, four corners of the upper surface of the lower punching mechanism 7 are symmetrically provided with a convex part 18, correspondingly, four corners of the lower surface of the upper punching mechanism 8 are symmetrically provided with a concave part 19, when the upper punching mechanism 8 contacts with the lower punching mechanism 7, the convex parts 18 are just clamped into the concave parts 19 and are mutually abutted, so that when extrusion occurs between the upper punching mechanism 8 and the lower punching mechanism 7, the transverse displacement generated between the upper punching mechanism and the lower punching mechanism can be reduced through the arranged convex parts 18 and concave parts 19, and the forming effect of the pellets is influenced.

Example 3:

as shown in fig. 1 to 6, the present embodiment optimizes the demolding structure for the above-described embodiment.

In the multi-ball die assembly for preparing the refractory balls, a lower nozzle 16 and an upper nozzle 17 are arranged above a lower stamping mechanism 7 and below an upper stamping mechanism 8, the feeding end of the lower nozzle 16 and the feeding end of the upper nozzle 17 are respectively communicated with the discharging end of a release agent storage tank 20, the spraying end of the lower nozzle 16 points to the upper surface of the lower stamping mechanism 7, and the spraying end of the upper nozzle 17 points to the lower surface of the upper stamping mechanism 8. The inside of the release agent storage tank 20 is lubricating oil for separating the molded pellets from the mold, and can be an oily release agent, the performance of the fire-resistant balls and the mold are not influenced, and the release agent in the release agent storage tank 20 is pumped to the lower nozzle 16 and the upper nozzle 17 by a high-pressure air pump and is sprayed out from the nozzles. The specific working mode is that when the molded pellets are separated from the upper punch mechanism 8 and the feeding mechanism 2 is restored to the initial position, the upper nozzle 17 works to spray the release agent onto the surface of the die of the upper punch mechanism 8, then the hydraulic push rod 11 pushes the upper punch mechanism 8 to move downwards to extrude the materials, after the extrusion molding is completed, the upper punch mechanism 8 moves upwards to a height higher than that of the lower nozzle 16, the lower nozzle 16 works to spray the release agent onto the surface of the die of the lower punch mechanism 7, then the cylinder 3 drives the feeding mechanism 2 to fill the lower punch mechanism 7, and the operation is circulated in such a way, so that the release agent is sprayed onto the surface of the die through the upper nozzle and the lower nozzle before the upper punch mechanism and the lower punch mechanism work, and the demolding effect of the molded pellets is improved.

Example 4:

as shown in fig. 1 to 7, the second guide passage is optimized in the present embodiment with respect to the above-described embodiments.

In the multi-ball die assembly for preparing the refractory balls, a cross rod 14 is welded at the bottom of the upper part of a second material guide channel 12, a fixed block 13 is respectively arranged on the machine base 1 close to two sides of the second material guide channel 12, a clamping groove 15 is fixedly arranged on the fixed block 13, and the opening of the clamping groove 15 is upward; two ends of the cross rod 14 are respectively and fixedly provided with a vertical rod 26, the vertical rods 26 are perpendicular to the cross rod 14 and project along the axial direction of the cross rod 14, and the included angle between each vertical rod 26 and the second material guide channel 12 is 40-75 degrees. As shown in fig. 6, when the included angle between the vertical rod 26 and the second material guiding channel 12 is 60 °, two fixing blocks 13 are symmetrically disposed on two sides of the machine base 1, the first cross rod 14 is clamped into the clamping grooves 14 at two ends, and the vertical rod 26 is disposed, so that the second material guiding channel 12 is prevented from being at the discharging end, the vertical rod 16 and the fixing block 13 are tightly abutted, the included angle between the second material guiding channel 12 and the horizontal direction is 30 °, and the molded pellet falls into the finished product box 24 along the slope of the second material guiding channel 12.

Example 5:

as shown in fig. 1 to 6, the structure of the second guide passage is optimized for the above embodiment.

The upper half part of the second material guide channel 12 in the multi-ball die assembly for preparing the refractory balls is a buffer area 21, and the lower half part of the second material guide channel 12 is a filtering area 22. In one embodiment, along the inclined plane of the second material guiding channel 12, the upper half of the second material guiding channel 12 is made of rubber material and is a buffer area 21, the lower half is made of a plurality of cylinders arranged in parallel and side by side along the inclined direction of the second material guiding channel 12, the plurality of cylinders are hollowed out to form a filtering area 22, when the formed pellets fall from the first material guiding channel 5 to the second material guiding channel 12, the formed pellets first fall on the buffer area 21, so that the difference in distance between the first material guiding channel 5 and the second material guiding channel 12 can be buffered, the resulting impact force of the formed pellets reduces the deformation or cracking of the formed pellets, and when the formed pellets pass through the filtering zone 22, the broken waste or sticky material may pass through the filtering zone 22, fall into a waste bin 25, where after the waste is collected, and the materials are secondarily utilized, so that the quality level of finished products in the finished product box 24 can be improved. Preferably, the gaps among the cylinders are the same and are 0.4-0.8 times of the diameter of the refractory ball, so that the filtering effect of the filtering area 22 on waste products can be improved.

Example 6:

as shown in fig. 1 to 6, the present embodiment optimizes the nozzle structure for the above-described embodiment.

The lower nozzle 16 and the upper nozzle 17 of the multi-ball die assembly for preparing the refractory balls are atomizing nozzles. Set up atomizing nozzle, can promote the release agent and spray the homogeneity on the mould to the result of use of this device has been promoted.

Example 7:

as shown in fig. 6 to 7, the present embodiment optimizes the structure of the second guide passage with respect to the above-described embodiment.

In the multi-ball die assembly for preparing the refractory balls, the fixing block 13 is provided with a through hole, the machine base 1 is provided with a plurality of threaded holes 27, and the fixing block 13 is connected with the machine base 1 through bolts 28. The fixing block 13 is fixed on the machine base 1 through the bolt 28, so that the height position of the second material guiding channel 12 can be adjusted according to actual use requirements, and the use effect of the device is improved.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. Many balls die assembly is used in fire-resistant ball preparation which characterized in that: the device comprises a machine base (1), a feeding mechanism (2), a cylinder (3), a storage bin (4), a first material guide channel (5), a first spring (6), a lower punching mechanism (7), an upper punching mechanism (8), a second spring (9), a third spring (10), a hydraulic push rod (11) and a second material guide channel (12); the hydraulic push rod (11), the third spring (10), the upper punching mechanism (8), the lower punching mechanism (7) and the second spring (9) are sequentially arranged from top to bottom, four vertical third springs (10) are uniformly and fixedly arranged on four corners of the upper punching mechanism (8) respectively, and pushing ends of the hydraulic push rod (11) are fixedly connected with the other ends of the four third springs (10) respectively; four vertical second springs (9) are uniformly and fixedly arranged on four corners of the lower punching mechanism (7) respectively, and the other ends of the four second springs (9) are fixed at the bottom of the machine base (1); a feeding mechanism (2) for feeding the lower punching mechanism (7) is arranged beside the lower punching mechanism (7), the transmission end of the cylinder (3) is fixedly connected with the feeding mechanism (2), a feed bin (4) for feeding is arranged above the feeding mechanism (2), a first material guide channel (5) is arranged above the feeding mechanism (2), the first material guide channel (5) is obliquely and downwards arranged along the direction far away from the cylinder (3), the bottom of the first material guide channel (5) is fixedly connected with one end, far away from the cylinder (3), of the upper surface of the feeding mechanism (2), and the lowest position of the first material guiding channel (5) extends to one side far away from the cylinder (3) and extends out of the feeding mechanism (2), two vertical first springs (6) are respectively and fixedly arranged on two sides of the bottom of the upper part of the first material guide channel (5), and the other ends of the first springs (6) are fixedly connected with the feeding mechanism (2); a second material guiding channel (12) is arranged on one side, far away from the cylinder (3), of the lower stamping mechanism (7), the second material guiding channel (12) is arranged obliquely downwards along the direction far away from the cylinder (3), and the highest position of the second material guiding channel (12) is lower than the lowest position of the first material guiding channel (5).

2. The multi-ball die assembly for refractory ball preparation as set forth in claim 1, wherein: the upper surface of the lower punching mechanism (7) is uniformly provided with a plurality of convex parts (18), and the lower surface of the upper punching mechanism (8) is uniformly provided with a plurality of concave parts (19) which are matched with the convex parts (18) for work.

3. The multi-ball die assembly for refractory ball preparation as set forth in claim 2, wherein: and a lower nozzle (16) and an upper nozzle (17) are arranged above the lower punching mechanism (7) and below the upper punching mechanism (8), the feeding end of the lower nozzle (16) and the feeding end of the upper nozzle (17) are respectively communicated with the discharging end of the release agent storage tank (20), the spraying end of the lower nozzle (16) points to the upper surface of the lower punching mechanism (7), and the spraying end of the upper nozzle (17) points to the lower surface of the upper punching mechanism (8).

4. The multi-ball die assembly for refractory ball preparation as set forth in claim 2, wherein: a cross rod (14) is welded at the bottom of the upper part of the second material guiding channel (12), a fixing block (13) is respectively arranged on the machine base (1) close to the two sides of the second material guiding channel (12), a clamping groove (15) is fixedly arranged on the fixing block (13), and the opening of the clamping groove (15) is upward; two ends of the cross rod (14) are respectively and fixedly provided with a vertical rod (26), the vertical rods (26) are perpendicular to the cross rod (14) and project along the axial direction of the cross rod (14), and the included angle between each vertical rod (26) and the second material guide channel (12) is 40-75 degrees.

5. The multi-ball die assembly for refractory ball preparation as set forth in claim 2, wherein: the upper half part of the second material guiding channel (12) is a buffer area (21), and the lower half part of the second material guiding channel (12) is a filtering area (22).

6. The multi-ball die assembly for refractory ball preparation as set forth in claim 3, wherein: the lower nozzle (16) and the upper nozzle (17) are atomizing nozzles.

7. The multi-ball die assembly for refractory ball preparation as set forth in claim 4, wherein: the fixing block (13) is provided with a through hole, the machine base (1) is provided with a plurality of threaded holes (27), and the fixing block (13) is connected with the machine base (1) through bolts (28).