CN210935230U - Liquid nitrogen freezing pulverizer - Google Patents

Abstract

The utility model relates to a liquid nitrogen refrigeration rubbing crusher, it includes frame (1), glassware (5) under feed cylinder (2), crushing room (3), fan blade room (4) and the whirlwind has set gradually from left to right in frame (1), wear to be equipped with first transmission shaft (9) in crushing room (3), be provided with on first transmission shaft (9) straight blade dish (10) or movable cutter dish (11), first transmission shaft (9) are a hollow shaft, second transmission shaft (12) are worn to be equipped with in first transmission shaft (9) center, be provided with gradation wheel (13) on second transmission shaft (12), it is provided with straight ring gear (14) and water conservancy diversion circle (15) to smash room (3) inner wall. The utility model relates to a liquid nitrogen refrigeration rubbing crusher, it returns rubbing crusher structure through the classifying wheel with the material that does not satisfy the fineness requirement and carries out the regrinding, can effectively guarantee the final fineness of smashing and the homogeneity of material.

Description

Liquid nitrogen freezing pulverizer

Technical Field

The utility model relates to a liquid nitrogen refrigeration rubbing crusher belongs to crushing apparatus technical field.

Background

With the continuous development of modern medicine, food and chemical industry, people have higher and higher requirements on material refinement. However, when materials are crushed by a common machine, the temperature rises, which easily causes the quality and the components of the materials to be reduced, and when materials such as spices, meat, Chinese herbal medicines, chocolate and the like are crushed at normal temperature, the materials are easy to be bonded, blocked and the temperature rise quality is changed, so that the crushing effect and the efficiency are poor. The common crushing means can not meet the production requirements of the new era.

The hardness and brittleness of the material increase along with the reduction of the temperature, the shaping and toughness decrease, and the material is crushed by a small force at a certain temperature. At present, a liquid nitrogen freezing pulverizer appears in the market, liquid nitrogen is used as a cold source, pulverized materials are cooled by the liquid nitrogen to realize an embrittled state at a low temperature, then the pulverized materials enter a pulverizing chamber to be pulverized, and the pulverized materials achieve the pulverizing effect under the comprehensive actions of repeated impact, collision, shearing, friction and the like among the materials, blades and fluted discs. However, in the existing freezing pulverizer, an impeller in a pulverizing chamber is arranged on a transmission shaft, and a fluted disc is arranged on an end cover of the pulverizing chamber, so that only one pulverizing process is needed, and the final pulverizing fineness and uniformity of materials cannot be effectively ensured.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a liquid nitrogen refrigeration rubbing crusher is provided to above-mentioned prior art, it returns rubbing crusher structure with the material that does not satisfy the fineness requirement through the classification wheel and carries out the regrinding, can effectively guarantee the final fineness of pulverization and homogeneity of material.

The utility model provides a technical scheme that above-mentioned problem adopted does: a liquid nitrogen freezing crusher comprises a frame, a charging barrel, a crushing chamber, a fan blade chamber and a cyclone blanking device are sequentially arranged on the frame from left to right, the charging barrel is connected with the crushing chamber through a screw conveyer which is arranged in an inclined way, a cold source tank is arranged on or outside the machine frame and is respectively connected with the charging barrel and the crushing chamber through cold source pipelines, a first transmission shaft penetrates through the crushing chamber along the front-back direction, a straight cutter disc or a movable cutter disc is arranged on the first transmission shaft, the first transmission shaft is a hollow shaft, a second transmission shaft penetrates through the center of the first transmission shaft, the second transmission shaft is provided with a grading wheel which is positioned at the front side of the straight cutter head or the movable cutter head, the corresponding position of the inner wall of the crushing chamber is provided with a straight gear ring matched with the straight cutter disc or the movable cutter disc and a guide ring matched with the grading wheel.

Preferably, liquid nitrogen is arranged in the cold source tank.

Preferably, a third transmission shaft penetrates through the fan blade chamber along the front-back direction, and fan blades are arranged on the third transmission shaft.

Preferably, the top of the charging barrel is provided with a feeding hole, the bottom of the charging barrel is provided with a discharging hole, the lower end of the screw conveyor is connected with the discharging hole of the charging barrel, and the middle part of the screw conveyor is connected with the crushing chamber through a feeding pipeline.

Preferably, the crushing chamber is connected with the fan blade chamber through a first discharge pipe, and the fan blade chamber is connected with the cyclone discharging device through a second discharge pipe.

Preferably, a first bearing seat is arranged behind the crushing chamber, a front first bearing and a rear first bearing are arranged in the first bearing seat, and the rear section of the first transmission shaft is erected on the first bearing seat through the front first bearing and the rear first bearing.

Preferably, a second bearing seat is arranged behind the fan blade chamber, a front second bearing and a rear second bearing are arranged in the second bearing seat, and the rear section of the third transmission shaft is erected on the second bearing seat through the front second bearing and the rear second bearing.

Preferably, the rear ends of the first transmission shaft, the second transmission shaft and the third transmission shaft are respectively driven by a motor.

Compared with the prior art, the utility model has the advantages of:

the utility model relates to a liquid nitrogen refrigeration rubbing crusher, its crushing indoor is provided with the classification wheel, returns rubbing crusher structure through the material that classification wheel will not satisfy the fineness requirement and carries out the regrinding, can effectively guarantee the final fineness of smashing and the homogeneity of material, and the fineness of smashing can reach 80 ~ 600 meshes, has effectively guaranteed final crushing effect.

Drawings

Fig. 1 is a schematic structural diagram of the liquid nitrogen freezing pulverizer of the present invention.

Fig. 2 is a schematic view showing an internal structure of the crushing chamber and the vane chamber of fig. 1.

Fig. 3 is a schematic view showing the internal structure of another embodiment of the pulverizing chamber and the vane chamber of fig. 1.

Wherein:

frame 1

Charging barrel 2

Feed inlet 2.1

Discharge opening 2.2

Crushing chamber 3

Vane chamber 4

Cyclone blanking device 5

Screw conveyor 6

Cold source tank 7

Cold source pipeline 8

First drive shaft 9

Straight cutter head 10

Movable knife disc 11

Second drive shaft 12

Grading wheel 13

Straight gear ring 14

Flow guiding ring 15

Third drive shaft 16

Fan blade 17

First discharge pipe 18

Second discharge pipe 19

First bearing seat 20

First bearing 21

Second bearing seat 22

A second bearing 23.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 3, the liquid nitrogen freezing pulverizer in this embodiment includes a frame 1, a charging barrel 2, a pulverizing chamber 3, a blade chamber 4 and a cyclone discharger 5 are sequentially disposed on the frame 1 from left to right, the charging barrel 2 is connected with the pulverizing chamber 3 through a screw conveyor 6, the screw conveyor 6 is obliquely disposed, a cold source tank 7 is disposed on the frame 1 or outside the frame 1, the cold source tank 7 is respectively connected with the charging barrel 2 and the pulverizing chamber 3 through a cold source pipeline 8, a first transmission shaft 9 is installed in the pulverizing chamber 3 in a front-back direction in a penetrating manner, a straight cutter disc 10 or a movable cutter disc 11 is disposed on the first transmission shaft 9, a plurality of straight cutter blades are disposed on the straight cutter disc 10, a plurality of movable cutter blades are disposed on the movable cutter disc 11, the first transmission shaft 9 is a hollow shaft, a second transmission shaft 12 is installed in the center of the first transmission shaft 9 in a penetrating manner, a grading wheel 13 is arranged on the second transmission shaft 12, the grading wheel 13 is positioned at the front side of the straight cutter disc 10 or the movable cutter disc 11, and a straight tooth ring 14 matched with the straight cutter disc 10 or the movable cutter disc 11 and a flow guide ring 15 matched with the grading wheel 13 are arranged at the corresponding position of the inner wall of the crushing chamber 3;

liquid nitrogen is arranged in the cold source tank 7;

a third transmission shaft 16 penetrates through the blade chamber 4 along the front-back direction, and a blade 17 is arranged on the third transmission shaft 16;

the top of the charging barrel 2 is provided with a feeding hole 2.1, the bottom of the charging barrel is provided with a discharging hole 2.2, the lower end of the screw conveyer 6 is connected with the discharging hole 2.2 of the charging barrel 2, and the middle part of the screw conveyer 6 is connected with the crushing chamber 3 through a feeding pipeline;

the crushing chamber 3 is connected with the fan blade chamber 4 through a first discharge pipe 18, and the fan blade chamber 4 is connected with the cyclone blanking device 5 through a second discharge pipe 19;

a first bearing seat 20 is arranged at the rear part of the crushing chamber 3, a front first bearing 21 and a rear first bearing 21 are arranged in the first bearing seat 20, and the rear section of the first transmission shaft 9 is erected on the first bearing seat 20 through the front first bearing 21 and the rear first bearing 21;

a second bearing seat 22 is arranged behind the fan blade chamber 4, a front second bearing 23 and a rear second bearing 23 are arranged in the second bearing seat 22, and the rear section of the third transmission shaft 16 is erected on the second bearing seat 22 through the front second bearing 23 and the rear second bearing 23;

the rear ends of the first transmission shaft 9, the second transmission shaft 12 and the third transmission shaft 16 are respectively driven by a motor.

In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims (8)

1. The utility model provides a liquid nitrogen refrigeration rubbing crusher which characterized in that: the device comprises a rack (1), wherein a charging barrel (2), a crushing chamber (3), a fan blade chamber (4) and a cyclone discharger (5) are sequentially arranged on the rack (1) from left to right, the charging barrel (2) and the crushing chamber (3) are connected through a spiral conveyer (6), the spiral conveyer (6) is obliquely arranged, a cold source tank (7) is arranged on the rack (1) or outside the rack (1), the cold source tank (7) is respectively connected with the charging barrel (2) and the crushing chamber (3) through a cold source pipeline (8), a first transmission shaft (9) penetrates through the crushing chamber (3) along the front-back direction, a straight cutter head (10) or a movable cutter head (11) is arranged on the first transmission shaft (9), a second transmission shaft (12) penetrates through the center of the first transmission shaft (9), and a grading wheel (13) is arranged on the second transmission shaft (12), the grading wheel (13) is located on the front side of the straight cutter head (10) or the movable cutter head (11), and a straight gear ring (14) matched with the straight cutter head (10) or the movable cutter head (11) and a diversion ring (15) matched with the grading wheel (13) are arranged at the corresponding position of the inner wall of the crushing chamber (3).

2. The frozen pulverizer of liquid nitrogen according to claim 1, characterized in that: and liquid nitrogen is arranged in the cold source tank (7).

3. The frozen pulverizer of liquid nitrogen according to claim 1, characterized in that: and a third transmission shaft (16) penetrates through the blade chamber (4) along the front-back direction, and blades (17) are arranged on the third transmission shaft (16).

4. The frozen pulverizer of liquid nitrogen according to claim 1, characterized in that: the top of the charging barrel (2) is provided with a feeding hole (2.1), the bottom of the charging barrel is provided with a discharging hole (2.2), the lower end of the screw conveyor (6) is connected with the discharging hole (2.2) of the charging barrel (2), and the middle part of the screw conveyor (6) is connected with the crushing chamber (3) through a feeding pipeline.

5. The frozen pulverizer of liquid nitrogen according to claim 1, characterized in that: the crushing chamber (3) is connected with the fan blade chamber (4) through a first discharge pipe (18), and the fan blade chamber (4) is connected with the cyclone blanking device (5) through a second discharge pipe (19).

6. The frozen pulverizer of liquid nitrogen according to claim 1, characterized in that: the crushing chamber (3) rear is provided with first bearing frame (20), be provided with two first bearings (21) around in first bearing frame (20), first transmission shaft (9) rear section is erect on first bearing frame (20) through two first bearings (21) around.

7. The frozen pulverizer of liquid nitrogen according to claim 3, characterized in that: a second bearing seat (22) is arranged behind the fan blade chamber (4), a front second bearing (23) and a rear second bearing (23) are arranged in the second bearing seat (22), and the rear section of the third transmission shaft (16) is erected on the second bearing seat (22) through the front second bearing (23) and the rear second bearing (23).

8. The frozen pulverizer of liquid nitrogen according to claim 3, characterized in that: the rear ends of the first transmission shaft (9), the second transmission shaft (12) and the third transmission shaft (16) are respectively driven by a motor.

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