CN219849955U - An ultra-fine grinding system suitable for aquatic feed production - Google Patents

Abstract

The utility model discloses an ultrafine grinding system suitable for aquatic feeds, and belongs to the technical field of feed production. The device comprises an ultrafine grinder, an arch breaking feeder and a sedimentation air net, wherein the ultrafine grinder comprises a grinding chamber, a grading chamber and a discharging chamber, an ultrafine grinding assembly and a gear ring are arranged in the grinding chamber, and the gear ring is fixedly arranged on the inner wall of the grinding chamber; the superfine grinding assembly comprises an upper grinding disc, a lower grinding disc and a main grinding disc, and a plurality of hammer sheets distributed circumferentially are arranged between the upper grinding disc and the lower grinding disc; a plurality of hammers matched with the gear ring are arranged on the main crushing disc, and the hammers are circumferentially distributed; the superfine grinding component is connected with the rotor assembly. The shearing force and the impact force on the fiber raw materials are enhanced, and the efficiency and the quality of superfine crushing powder are improved; and the controllability and the stability of the superfine grinding process are improved, and the smooth implementation of the aquatic feed production process is ensured.

Description

An ultra-fine grinding system suitable for aquatic feed production

Technical field

The utility model relates to an ultrafine grinding system, which is particularly suitable for the ultrafine grinding process of aquatic feed and belongs to the technical field of feed production.

Background technique

During the processing of feed raw materials, crushing is required. On the one hand, it increases the surface area of the feed, which is beneficial to the digestion and absorption of animals; on the other hand, it can improve and enhance the processing performance of the materials. For example, through crushing, the particle size of the materials can be basically consistent. , to reduce the classification of materials after uniform mixing; for trace elements and some small component materials, only when they are crushed to a certain extent to ensure that they have sufficient particle numbers can the mixing uniformity requirements be met.

For crushing systems, especially aquatic feeds, hammer crushers are generally used to coarsely crush raw materials, and in order to further increase the fineness of particles, ultra-fine crushers are also needed for higher-fine crushing (crushing particle size (can reach 60 to 200 mesh), ensuring the stability and non-collapse of the pellet feed in the water before aquaculture objects eat it.

At present, the material in the ultrafine crushing system mainly relies on the impact between the hammer head and the ring gear to crush the material in the crushing area, and the shear force is weak (as shown in Figure 3, Figure 5 and Figure 7). There are a lot of fibrous raw materials in the raw materials. It is difficult for such raw materials to achieve the purpose of crushing through the impact of the hammer head and the ring gear, and it cannot be discharged through the classifying wheel, forming an infinite loop and affecting the crushing efficiency. In addition, in order to further improve and strengthen the shearing operation of such raw materials, the hammer tooth gap is generally set to be smaller to enhance the shearing effect on the fiber raw materials. However, a smaller hammer tooth gap will cause crushing The wind speed in the area is high, and some raw materials are continuously circulated in the crushing chamber, seriously affecting the crushing efficiency.

For example, in the existing technologies "CN204503210U Ultrafine Pulverizer for Feed", "CN201313058Y Ultrafine Pulverizer", etc., it is disclosed that the crushing in the crushing area is a combination of "hammer + ring gear", although it strengthens the crushing process. It can effectively cut the material, but weaken the impact on the material.

Contents of the invention

In order to better solve the problems of crushing efficiency and crushing quality in feed production, this utility model proposes an ultra-fine crushing system suitable for aquatic feed production. Among them, the crushing area adopts the combination of "hammer head + hammer blade + ring gear". On the basis of the original impact crushing of materials, the shearing and crushing of materials is further strengthened, ultimately improving the crushing efficiency and crushing quality.

In order to achieve the above technical objectives, the following technical solutions are proposed:

An ultrafine pulverizing system suitable for the production of aquatic feed, including an ultrafine pulverizer, an arch-breaking feeder arranged on the front side of the ultrafine pulverizer process, and a settling wind net arranged on the rear side of the ultrafine pulverizer process. There is a material bin at the inlet of the arch feeder. The outlet of the arch-breaking feeder is connected to the inlet of the ultra-fine pulverizer through a connecting pipe. The material bin, arch-breaking feeder, connecting pipe and ultra-fine pulverizer A continuous passage for materials to enter the ultrafine pulverizer is formed between the feed ports;

The ultrafine pulverizer includes a crushing chamber, a classification chamber and a discharging chamber. The connecting pipe is connected with the inlet of the crushing chamber. The grading chamber is set above the crushing chamber. The discharging chamber is set above the grading chamber. The discharging chamber is connected to the settling air. The network is connected, and the crushing chamber, grading chamber and discharging chamber form a continuous passage for materials to be ultrafinely pulverized, classified and discharged in the ultrafine pulverizer;

The crushing chamber is equipped with an ultra-fine grinding assembly and a ring gear. The ring gear is fixed on the wall of the crushing chamber. The ultra-fine grinding assembly includes an upper crushing disc, a lower crushing disc and a main crushing disc arranged in sequence from top to bottom. The upper crushing disc and A plurality of hammer blades are arranged in a circumferential distribution between the lower crushing discs; a plurality of hammer heads matching the ring gear are arranged on the main crushing disc, and the hammer heads are arranged in a circumferential distribution;

The ultrafine grinding component is connected to the rotor assembly, and is powered by the rotor assembly to achieve ultrafine grinding of materials.

Preferably, the settling air net is connected to a Shakron, and the Shakron discharge port is connected to an elevator. With this arrangement, the materials crushed by the ultrafine pulverizer can be smoothly and stably discharged to the next process; The dust outlet of the dragon is connected to a fan through a settling air net, and a pulse dust collector is installed on the settling air net. This setting will settle the crushed materials again, thereby improving the stability of feed production and improving the safety of the working environment.

Preferably, the arch-breaking feeder is provided with a longitudinal air supply port, and the connecting pipe is provided with a transverse air supply port to ensure that the materials to be ultrafinely pulverized are smoothly and stably fed into the ultrafine pulverizer; ultrafine pulverizer It also includes an air supply chamber arranged below the crushing chamber, the rotor assembly is arranged in the air supply chamber, and the main axis of the rotor assembly extends toward the crushing chamber.

Preferably, the arch-breaking feeder is connected to a reduction motor, which can reduce the rotation speed, inertia, and increase the torque to ensure effective transportation of the ultrafinely pulverized materials.

Preferably, a gravity impurity removal tee is provided between the discharge port of the arch-breaking feeder and the connecting pipe.

This technical solution involves positional relationships such as "front side of the process", "back side of the process", "between", "above", "top", "from top to bottom", etc., which are based on the actual use conditions. Definition is a common terminology in this technical field and is also a common terminology used by those skilled in the art in actual use.

The beneficial technical effects brought by adopting this technical solution are:

In this utility model, through the cooperative arrangement of the ultrafine grinding assembly and the ring gear, the shearing force and impact force on the fiber raw materials are strengthened, and the ultrafine grinding efficiency and quality are improved; further, the material bin and arch breaking feeding are limited A continuous passage for materials to enter the ultrafine pulverizer is formed between the breaker, the connecting pipe and the feed port of the ultrafine pulverizer. A continuous passage is formed between the crushing chamber, the classification chamber and the discharging chamber for the material to be ultrafinely pulverized, classified and processed in the ultrafine pulverizer. The continuous channel for discharging improves the controllability and stability of the ultrafine grinding process and ensures the smooth progress of the aquatic feed production process.

Description of the drawings

Figure 1 is a schematic diagram of the working state of the utility model;

Figure 2 is a schematic structural diagram of the ultrafine grinding component of the present utility model;

Figure 3 is a schematic structural diagram of an ultrafine grinding component in the prior art;

Figure 4 is a schematic diagram of the connection between the ultrafine grinding component and the rotor assembly in the present utility model;

Figure 5 is a schematic diagram of the connection between the ultrafine grinding component and the rotor assembly in the prior art;

Figure 6 is a schematic structural diagram of the ultrafine pulverizer of the present utility model;

Figure 7 is a schematic structural diagram of an ultrafine pulverizer in the prior art;

In the picture, 1. Material bin, 2. Arch-breaking feeder, 21. Longitudinal air supply port, 3. Ultrafine pulverizer, 31. Crushing chamber, 32. Classification room, 33. Discharge room, 34. Air supply room , 4. Settlement air net, 5. Connecting pipe, 51. Horizontal air supply port, 6. Ultra-fine grinding component, 61. Upper crushing disc, 62. Lower crushing disc, 63. Main crushing disc, 64. Hammer, 65. Hammer head, 7. Ring gear, 8. Rotor assembly, 81. Pulley, 82. Spindle, 83. Spindle seat, 9. Shakron, 10. Elevator, 11. Air shut-off device, 12. Fan, 13. Pulse dust collector, 14. Reduction motor, 15. Gravity impurity removal tee.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

Example 1

As shown in Figure 1, an ultrafine pulverizing system suitable for aquatic feed production includes an ultrafine pulverizer 3, an arch-breaking feeder 2 installed on the front side of the ultrafine pulverizer 3 process, and an ultrafine pulverizer 2 installed on the front side of the ultrafine pulverizer 3. 3. There is a settling air net 4 on the back side of the process, and a material bin 1 is provided at the inlet of the arch-breaking feeder 2. The material bin 1 is fixed on the arch-breaking feeder 2 through a flange, and the arch-breaking feeder 2 discharges materials. The port is connected to the feed port of ultrafine pulverizer 3 through connecting pipe 5. The material bin 1, arch-breaking feeder 2, connecting pipe 5 and the feed port of ultrafine pulverizer 3 form a gap for materials to enter ultrafine pulverizer 3. continuous pathway;

As shown in Figure 6, the ultrafine pulverizer 3 includes: a pulverizing chamber 31, a grading chamber 32 and a discharging chamber 33. The connecting pipe 5 is connected to the feed port of the pulverizing chamber 31. The grading chamber 32 is arranged above the pulverizing chamber 31. The material chamber 33 is arranged above the classification chamber 32. The discharge chamber 33 is connected with the settling air net 4. The materials formed between the crushing chamber 31, the classification chamber 32 and the discharge chamber 33 are ultrafinely pulverized and classified in the ultrafine grinder 3. and a continuous path for discharging materials;

Among them, the grinding chamber 31 is equipped with an ultra-fine grinding component 6 and a ring gear 7, and the ring gear 7 is fixedly arranged on the inner wall of the grinding chamber 31; as shown in Figure 2, the ultra-fine grinding component 6 includes a The upper crushing disc 61, the lower crushing disc 62 and the main crushing disc 63 are provided with a plurality of circumferentially distributed hammers 64 between the upper crushing disc 61 and the lower crushing disc 62; A plurality of matching hammer heads 65 are arranged in a circumferential distribution; the ultrafine grinding component 6 is connected to the rotor assembly 8, and is powered by the rotor assembly 8 to achieve ultrafine grinding of the material;

Classification chamber 32: It is arranged using existing mature technology. For example, the classification chamber 32 includes a classification shaft, a classification wheel, a convex cover, a diverter cover and a classification motor. The discharge chamber 33, the convex cover and the classification wheel are composed of A closed space is formed between them. After ultra-fine crushing, the material enters the classification chamber 32. The material is classified by the action of wind, gravity and centrifugal force of the classification wheel. The separated coarse material returns to the crushing chamber 31 for re-crushing, and the separated fine material (finished product) ) is sucked into the grading wheel, enters the discharge chamber 33, and finally enters the settling air net 4 from the discharge port, and then settles.

Arch-breaking feeder 2: Use the existing mature technology of the arch-breaking feeder 2, such as: the arch-breaking feeder 2 includes an arch-breaking mechanism and a spiral feeding mechanism;

Moreover, the rotor assembly 8 adopts the rotor assembly 8 in the existing mature technology. For example, as shown in Figure 4, the rotor assembly 8 includes a pulley 81, a main shaft 82 and a main shaft seat 83. The spindle seat 83 is arranged below the crushing chamber 31 and is bolted to the machine base. The spindle 82 is fixed in the spindle seat 83 through bearings and sealed by an end cover; one end of the spindle 82 is connected to the pulley 81, and the other end is connected to the ultrafine grinding assembly. 6. Lock and fix with round nut.

Example 2

On the basis of Example 1, this example further limits the feeding, conveying and discharging of the ultrafine grinding system to further illustrate this technical solution.

As shown in Figure 1, the settling air network 4 is connected to the Shakron 9, and the discharge port of the Shakron 9 is connected to the elevator 10. This setting can smoothly and stably discharge the materials crushed from the ultrafine grinder 3 to Next process: The dust outlet of Shakron 9 is connected to the fan 12 through the settling air net 4, and the settling air net 4 is equipped with a pulse dust collector 13. This setting will settle the crushed materials again, thereby improving the stability of feed production. , and improve the safety of the working environment.

The arch-breaking feeder 2 is provided with a longitudinal air supply port 21, and the connecting pipe 5 is provided with a transverse air supply port 51 to ensure that the materials to be ultrafinely pulverized are smoothly and stably fed into the ultrafine pulverizer 3; ultrafine pulverizer 3 also includes an air supply chamber 34 arranged below the crushing chamber 31, the rotor assembly 8 is arranged in the air supply chamber 34, and the main shaft 82 of the rotor assembly 8 extends into the crushing chamber 31.

A gravity impurity removal tee 15 is provided between the outlet of the arch-breaking feeder 2 and the connecting pipe 5, and a flange is provided between the outlet of the arch-breaking feeder 2 and the feed port of the gravity impurity removal tee 15. Connection, the discharge port of the gravity impurity removal tee 15 and the connecting pipe 5 are connected through a flange. In addition, the arch-breaking feeder 2 is connected to a reduction motor 14, which can reduce the rotation speed, inertia, and increase the torque to ensure effective transportation of the ultra-fine pulverized materials.

Among them, the work process involved is as follows:

1. When the ultrafine grinding system is running, the equipment is started sequentially from the back end of the process to the front end;

2. After the materials enter the arch-breaking feeder 2, the agglomerated materials are broken up by the arch-breaking mechanism in the arch-breaking feeder 2, and then pushed forward through the spiral feeding mechanism in the arch-breaking feeder 2. Adjust the opening of the longitudinal air supply port 21 on the shell of the arch-breaking feeder 2 and the horizontal air supply port 51 on the gravity impurity removal tee 15, and adjust the air volume so that the material can be in a suspended state at the gravity impurity removal tee 15 Enter the crushing chamber 31 through the connecting pipe 5 (set horizontally). Among them, heavier stones, iron blocks and other impurities fall into the impurity discharge port of the gravity impurity removal tee 15. When they reach a certain weight, they overcome the weight of the blocks on the gravity impurity removal tee 15 and open the impurity discharge port. eliminate debris;

3. After the material enters the crushing chamber 31 along the path ①, on the one hand, under the impact of the high-speed rotating hammer head 65, the material is thrown towards the ring gear 7 fixed on the wall of the crushing chamber 31, causing impact, shearing, and, The material is alternately crushed by collision, friction and shearing with the hammer head 65 and the ring gear 7; on the other hand, the material is crushed through the shearing of the hammer 64; the crushed material is crushed by the negative pressure air flow Under the action of the pulling force, the small powder particles overcome their own weight, cross the diverter cover (along the path ②) with the air flow, and enter the classification chamber 32;

4. The grading wheel in the grading chamber 32 is composed of blades. The high-speed rotating blades generate centrifugal force opposite to the negative pressure. The powder particles entering the blade gap are simultaneously affected by the centripetal force of the negative pressure airflow, the self-weight of the powder particles, and the centrifugal force generated by the impeller. , the particles larger than the critical diameter (classified particle size) in the powder are thrown back to the crushing chamber 31 (along path ③) due to their large mass, and are repeated again through the impact of the hammer head 65, the ring gear 7 and the shearing action of the hammer 64 The above path; particles smaller than the critical diameter enter the settling air net 4 through the discharge chamber 33 (along path ④);

5. The dust-containing gas enters the Shakron 9 through the settling air network 4 for primary settlement; then, it undergoes secondary settlement in the pulse dust collector 13, and the settled material is discharged to the chute through the air shutoff device 11 and enters the lifting Machine 10 enters the next process.

By arranging the hammer 64-type rotor in the crushing chamber 31, the crushing efficiency of fiber raw materials can be effectively solved, and this design can be completed by simple modification on the basis of existing equipment.

Claims (5)

1. Superfine pulverizing system suitable for aquatic products fodder production, its characterized in that: the device comprises an ultrafine grinder (3), an arch breaking feeder (2) arranged at the front side of the process of the ultrafine grinder (3) and a sedimentation air net (4) arranged at the rear side of the process of the ultrafine grinder (3), wherein a material bin (1) is arranged at the feed inlet of the arch breaking feeder (2), the discharge outlet of the arch breaking feeder (2) is connected with the feed inlet of the ultrafine grinder (3) through a connecting pipe (5), and a continuous passage for materials to enter the ultrafine grinder (3) is formed among the material bin (1), the arch breaking feeder (2), the connecting pipe (5) and the feed inlet of the ultrafine grinder (3);

the superfine pulverizer (3) comprises a pulverizing chamber (31), a classifying chamber (32) and a discharging chamber (33), wherein a connecting pipe (5) is communicated with a feeding hole of the pulverizing chamber (31), the classifying chamber (32) is arranged above the pulverizing chamber (31), the discharging chamber (33) is arranged above the classifying chamber (32), the discharging chamber (33) is communicated with a sedimentation air net (4), and a continuous path for superfine pulverizing, classifying and discharging materials in the superfine pulverizer (3) is formed among the pulverizing chamber (31), the classifying chamber (32) and the discharging chamber (33);

the grinding chamber (31) is internally provided with an ultrafine grinding assembly (6) and a gear ring (7), and the gear ring (7) is fixedly arranged on the inner wall of the grinding chamber (31); the superfine grinding assembly (6) comprises an upper grinding disc (61), a lower grinding disc (62) and a main grinding disc (63) which are sequentially arranged from top to bottom, and a plurality of hammer sheets (64) which are circumferentially distributed are arranged between the upper grinding disc (61) and the lower grinding disc (62); a plurality of hammers (65) matched with the gear ring (7) are arranged on the main crushing disc (63), and the hammers (65) are circumferentially distributed; the superfine grinding component (6) is connected with the rotor assembly (8).

2. The ultra-fine pulverizing system suitable for use in the production of aquatic feeds of claim 1, wherein: the sedimentation air net (4) is connected with a sallong (9), and a discharge hole of the sallong (9) is connected with a lifting machine (10); the dust discharging port of the saxophone (9) is connected with a fan (12) through a sedimentation air net (4), and a pulse dust collector (13) is arranged on the sedimentation air net (4).

3. The ultra-fine pulverizing system suitable for use in aquatic feed production according to claim 1 or 2, wherein: a longitudinal air supplementing port (21) is arranged on the arch breaking feeder (2), and a transverse air supplementing port (51) is arranged on the connecting pipe (5); the superfine pulverizer (3) further comprises a gas supplementing chamber (34) arranged below the pulverizing chamber (31), the rotor assembly (8) is arranged in the gas supplementing chamber (34), and a main shaft (82) in the rotor assembly (8) extends into the pulverizing chamber (31).

4. The ultra-fine pulverizing system suitable for use in the production of aquatic feeds of claim 1, wherein: the arch breaking feeder (2) is connected with a speed reducing motor (14).

5. The ultra-fine pulverizing system suitable for use in the production of aquatic feeds of claim 1, wherein: a gravity impurity-removing tee joint (15) is arranged between the discharge port of the arch-breaking feeder (2) and the connecting pipe (5).