CN213762146U

CN213762146U - High-effect fresh and wet biomass grinder moves sword system

Info

Publication number: CN213762146U
Application number: CN202022110578.6U
Authority: CN
Inventors: 李军; 吴妙林
Original assignee: Guangzhou Sankuai Iron Machinery Technology Co ltd
Current assignee: Hunan Sankuai Iron Machinery Technology Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-07-23
Anticipated expiration: 2030-09-23

Abstract

The utility model discloses a moving knife system of a high-efficiency fresh and wet biomass grinder, which comprises a main shaft, wherein a coaxial fan and a plurality of moving knife sets are fixed on the main shaft; the movable blade set comprises a plurality of movable blades, the tail ends of the movable blades are provided with bending parts, and the bending direction of the bending parts is the same as the advancing direction of the materials. The utility model discloses a portion of bending and circular slab guide material reach the shearing point department that moves sword end and stationary knife and form, have improved crushing efficiency, and have effectively reduced the length of moving the sword to increased and moved the sword bearing capacity, effectively reduced the phenomenon of moving the easy rupture of sword overlength.

Description

High-effect fresh and wet biomass grinder moves sword system

Technical Field

The utility model relates to the field of agricultural machinery, especially, relate to a high-effect bright wet biomass grinder move sword system.

Background

Since the 21 st century, with the rapid development of Chinese economy, the environmental protection consciousness is rapidly improved, the mode of ecological cycle agricultural production is not developed, the efficient utilization of various agricultural and forestry waste resources, food production byproducts and traditional Chinese medicine production byproducts is more and more highly regarded, various crop straws, vines, cauda, traditional Chinese medicine waste residues, pastures and other renewable biomass raw materials are widely applied to the production of cultured animal feeds and organic fertilizers, the biomass raw materials have higher moisture content, and the cost and the loss are high after drying and then crushing, so the market demands on fresh and wet biomass crushers are extremely vigorous.

Because the biomass raw material has high moisture content and high lignin and cellulose content, the crushing efficiency of the striking action and the friction action is poor, and the crushing purpose is realized mainly by the shearing action. Meanwhile, due to the special physical characteristics of the biomass raw materials, the requirement on the granularity of material crushing cannot be met through sieve pores, and a sieve-free crushing mode can only be adopted. The current common biomass crusher has two main technical defects:

1. most fresh and wet plants are usually ground and then used for animal feeding, when the fresh and wet plants are used for monogastric animals, aquatic animals and poultry, the ground granularity needs to be small and generally needs to be less than 3mm, and the needed ground granularity is difficult to achieve or the granularity distribution range is too large by the existing grinder in the market;

2. the crushing energy consumption is higher, the production cost of fresh and wet biomass raw materials is increased, and the unit production energy consumption of the existing crusher in the market generally reaches 20-50 kwh/ton.

When the existing pulverizer is used for feeding, materials are perpendicular to a rotating shaft of a movable cutter and fall down by means of gravity, namely the materials vertically fall down, then the materials rotate through the movable cutter, and shearing force is formed when the materials are staggered with a fixed cutter to cut the materials. However, such a pulverization method has the following problems: the fixed knife is usually arranged along the circumference of the lower half part of the crushing barrel, the number of arranged fixed knives is limited, so that the formed shearing points are limited, namely the shearing times of falling materials are limited, in addition, the falling tracks of the materials basically fall vertically, and the shearing angle of the materials is basically unchanged during shearing at each time, so that the subsequent shearing and crushing efficiency is lower and lower, therefore, when the existing crusher crushes, a filter sieve is usually arranged, and the materials with insufficient crushing fineness are circularly crushed. However, the biomass material contains a large amount of moisture, so the biomass material cannot be accumulated and sieved, or the biomass material can be adhered together to block the screen. Therefore, the conventional pulverizer cannot be applied to pulverization of biomass, and particularly, pulverization of biomass having relatively small particle size is required.

Therefore, the utility model discloses a high-effect bright wet biomass grinder, but the initial sword system of moving is difficult to guide the material to reach and moves the shearing point department of sword and stationary knife and smash, leads to its crushing efficiency not high.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a high-effect bright wet biomass grinder move sword system. The utility model discloses a portion of bending and circular slab guide material reach the shearing point department that moves sword end and stationary knife and form, have improved crushing efficiency, and have effectively reduced the length of moving the sword to increased and moved the sword bearing capacity, effectively reduced the phenomenon of moving the easy rupture of sword overlength.

The purpose of the utility model is realized through the following technical scheme:

a moving knife system of a high-efficiency fresh and wet biomass crusher comprises a main shaft, wherein a coaxial fan and a plurality of moving knife sets are fixed on the main shaft; the movable blade set comprises a plurality of movable blades, the tail ends of the movable blades are provided with bending parts, and the bending direction of the bending parts is the same as the advancing direction of the materials.

In a further improvement, the movable knife groups are 4-8 groups, each group of movable knife groups comprises 10-90 movable blades, and the movable blades of two adjacent groups of movable knife groups are staggered in the axial direction.

In a further improvement, the linear speed of the movable knife group is 87-93 m/s.

In a further improvement, the fan comprises a blade shaft sleeve and three wing type hollow blades.

In a further improvement, the main shaft is connected with a plurality of mounting shafts at the periphery of the main shaft through a circular plate, and the movable cutter group is mounted on the mounting shafts.

The beneficial effects of the utility model reside in that:

1. the linear velocity of the moving blade is designed to be 87-93m/s, so that the high-strength shearing capability is realized, and the power consumption is not greatly increased due to the increase of the linear velocity.

2. The fan blade of removable different specifications has further ensured that the user experiences the use of different raw materials varieties and corresponding crushing granularity.

3. The wing type hollow blade has good aerodynamic characteristics, and effectively overcomes the defects that the straight-plate type blade is subjected to high-frequency trembling due to air turbulence, so that metal fatigue damage is caused and the straight-plate type blade is easy to break.

4. The materials are guided to reach the shearing point formed by the tail end of the movable knife and the fixed knife through the bending part and the circular plate, and the crushing efficiency is improved.

5. The length of the movable knife is effectively reduced, so that the bearing capacity of the movable knife is increased, and the phenomenon that the movable knife is too long and is easy to break is effectively reduced.

Drawings

The present invention is further explained by using the attached drawings, but the content in the attached drawings does not constitute any limitation to the present invention.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a view showing a structure of a rotor;

FIG. 3 is a schematic axial structure diagram of the stationary knife system;

FIG. 4 is a schematic view of the radial structure of the stationary knife system

Fig. 5 is a schematic view of a coaxial fan structure.

In the figure: 1. a machine base; 2. a discharge port; 3. a stationary knife system; 4. a bending part; 5. a crushing chamber; 6. a feed hopper; 7. a coupling; 8. an electric motor; 9. a main shaft; 10. a coaxial fan; 11. a movable knife and a movable knife group; 12. a supporting seat; 13. adjusting the screw rod; 14. a fixed cutter seat; 15. a tool rest plate; 16. fixing a cutter; 17. a vane shaft sleeve; 18. a wing-type hollow blade; 19. a nut; 20. a circular plate 20; 21. and (4) installing a shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples.

As shown in fig. 1-5, the moving blade system of a high-efficiency fresh and wet biomass pulverizer mainly comprises a base, a pulverizing chamber, a fixed blade and fixed blade adjusting mechanism, a rotor, a feed inlet, a discharge outlet, a direct-connection transmission mechanism and a motor. The crushing chamber is a cylindrical crushing cavity formed by an upper half cylinder and a lower half cylinder, wherein the lower half cylinder is provided with a fixed knife system, the fixed knife system comprises fixed knives, fixed knife rests and fixed knife adjusting mechanisms, the fixed knives are 5-8 pieces according to the size of a movable knife system of the high-efficiency fresh and wet biomass crusher, the half cylinders on the lower half part of the crushing chamber are uniformly distributed along the radial direction, form an included angle of 5-8 degrees with the axial direction, and form an attack angle of 15-45 degrees with the rotating direction of a rotor in the radial direction. The rotor consists of a movable cutter set and a coaxial fan, wherein the movable cutter set consists of 4-8 groups of 80-360 movable cutters in different models, and the distance between two adjacent groups of the movable cutters is staggered along the axial direction. The linear speed of the moving blade is set to 87-93m/s, the rotor is connected with the motor through the direct-connected transmission mechanism to obtain stable rotating speed and linear speed, and the working diameter of the rotor is closely related to the rotating speed of the motor. The coaxial fan blade is fixed at one end of the main shaft through the blade shaft sleeve and the fastening bolt, and different types of blades can be replaced according to the physical properties of the crushed materials. The working clearance between the movable knife and the fixed knife can be adjusted between 2 mm and 8mm through the fixed knife adjusting mechanism. One end of the top of the crushing chamber is provided with a feed inlet, one side of the bottom of the crushing chamber is provided with a discharge outlet along the forward direction of the rotation direction of the rotor, and the bottom of the discharge outlet is horizontally opened along the tangential direction of the bottom of the lower half cylinder.

Fresh and wet biomass raw materials enter a crushing cavity from a feed port at the top of the crusher through a feeding device (additionally prepared according to a production process), spirally move to a discharge port along the upper and lower semi-cylindrical walls under the dual actions of centrifugal force and air flow, repeatedly carry out high-speed shearing and friction crushing on a shearing point formed by a driven knife and a fixed knife in the moving process, and finally are blown out of the crusher through the discharge port by the air flow.

The rotor consists of a movable cutter group and a coaxial fan.

The fixed cutter is a rectangular blade made of wear-resistant alloy materials, a cutting edge is formed on one side of the fixed cutter, and the fixed cutter can be repeatedly used after being polished after being worn.

The fixed cutter frame is fixed on the outer wall of the semi-cylinder at the lower half part of the crushing chamber and is used for supporting the fixed cutter and installing the fixed cutter adjusting mechanism.

The fixed cutter adjusting mechanism consists of a supporting seat, an adjusting screw rod and a cutter seat, and the working gap between the fixed cutter and the movable cutter can be freely adjusted within the range of 2-8mm by rotating the adjusting screw rod so as to obtain the required crushing granularity. The fixed knife can be repeatedly used for many times through the adjusting function of the fixed knife adjusting mechanism, so that the service life of the fixed knife is prolonged.

The main shaft 9 is connected with a plurality of mounting shafts 21 positioned at the periphery of the main shaft 9 through a circular plate 20, and a movable cutter group 11 is fixed on the mounting shafts.

Example 1

A movable knife system of a high-efficiency fresh and wet biomass crusher mainly structurally comprises a machine base, a crushing chamber, a fixed knife adjusting mechanism, a rotor, a feeding hole, a discharging hole, a direct-connection transmission mechanism and a motor.

The working diameter of the rotor is 600mm, the effective crushing length is 600mm, the rotor consists of a movable cutter set and a coaxial fan, wherein the movable cutter set consists of 4 groups of 100 movable cutters in total, and the distance between two adjacent groups of movable cutters is staggered along the axial direction. A Y series 37kw two-stage motor is used, and the linear speed of the movable cutter group is 92 m/s.

The crushing chamber is a cylindrical crushing cavity formed by an upper half cylinder and a lower half cylinder, wherein the lower half cylinder is provided with a fixed knife system, the fixed knife system comprises 5 fixed knives, a fixed knife rest and a fixed knife adjusting mechanism, the fixed knives are uniformly distributed on the lower half cylinder of the crushing chamber along the radial direction, an included angle of 5 degrees is formed between the fixed knives and the axial direction, and an attack angle of 30 degrees is formed between the fixed knives and the rotation direction of a rotor in the radial direction. The working clearance between the movable knife and the fixed knife can be adjusted between 2 mm and 8mm through the fixed knife adjusting mechanism.

The rotor is connected with the motor through a direct connection transmission mechanism to obtain stable rotating speed and linear speed. The coaxial fan blade is fixed at one end of the main shaft through the blade shaft sleeve and the fastening bolt, and different types of blades can be replaced according to physical properties of crushed materials to obtain corresponding air volume and air speed. One end of the top of the crushing chamber is provided with a feed inlet, one side of the bottom of the crushing chamber is provided with a discharge outlet along the forward direction of the rotation direction of the rotor, and the bottom of the discharge outlet is horizontally opened along the tangential direction of the bottom of the lower half cylinder.

Fresh and wet biomass raw materials enter the crushing cavity from a feed inlet at the top of the crusher through feeding equipment, move spirally to a discharge port along the upper and lower semi-cylindrical walls under the dual actions of centrifugal force and air flow, repeatedly shear at high speed and rub and crush at a shearing point formed by the driven knife and the fixed knife in the moving process, and finally are blown out of the crusher through the discharge port by the air flow.

The test of trial production of the fresh ramie crushed by a prototype shows that the unit yield is 3.2 tons/hour, and the average crushed particle size is 0.1-2.5 mm.

Example 2

The working diameter of the rotor is 1190mm, the effective crushing length is 800mm, the rotor consists of a movable knife group and a coaxial fan, wherein the movable knife group consists of 8 groups of 280 movable knives in total, and the distance between two adjacent groups of the movable knives is staggered along the axial direction. A Y series 75kw four-stage motor is used, and the linear speed of the movable cutter group is 92 m/s.

The crushing chamber is a cylindrical crushing cavity formed by an upper half cylinder and a lower half cylinder, wherein the lower half cylinder is provided with a fixed knife system, the fixed knife system comprises 8 fixed knives, a fixed knife rest and a fixed knife adjusting mechanism, the fixed knives are uniformly distributed on the lower half cylinder of the crushing chamber along the radial direction, an included angle of 5 degrees is formed between the fixed knives and the axial direction, and an attack angle of 30 degrees is formed between the fixed knives and the rotation direction of a rotor in the radial direction. The working clearance between the movable knife and the fixed knife can be adjusted between 2 mm and 8mm through the fixed knife adjusting mechanism.

The test of trial production of the fresh-harvested hybrid paper mulberry after sample machine crushing shows that the unit yield is 13.6 tons/hour, and the average crushed particle size is 0.1-2.5 mm.

It should be finally noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit the protection scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A moving knife system of a high-efficiency fresh and wet biomass crusher is characterized by comprising a main shaft (9), wherein a coaxial fan (10) and a plurality of moving knife groups (11) are fixed on the main shaft (9); the movable cutter set (11) comprises a plurality of movable blades, the tail ends of the movable blades are provided with bending parts (4), and the bending direction of the bending parts (4) is the same as the advancing direction of the materials.

2. The moving blade system of the high-efficiency fresh and wet biomass crusher according to claim 1, wherein the moving blade sets (11) are 4-8 sets, each moving blade set (11) comprises 10-90 moving blades, and the moving blades of two adjacent moving blade sets (11) are staggered axially.

3. The moving blade system of the high performance fresh and wet biomass mill according to claim 1, wherein the linear velocity of the moving blade set (11) is 87-93 m/s.

4. The moving blade system of a high efficiency fresh and wet biomass pulverizer as claimed in claim 1, wherein said fan comprises a blade bushing (17) and three airfoil type hollow blades (18).

5. The moving blade system of the high-efficiency fresh and wet biomass crusher according to claim 1, wherein the main shaft (9) is connected with a plurality of mounting shafts (21) at the periphery of the main shaft (9) through a circular plate (20), and the moving blade group (11) is mounted on the mounting shafts (21).