A straw crusher

Abstract

The present invention provides a straw crusher, which is characterized in that the crusher feed port (1) has an airflow cap (13) at its upper part. When the hammer blows out dust upward, it immediately enters the crushing chamber under the guidance of the airflow cap (13), thereby completely eliminating the material spraying phenomenon. The push blade (10) is connected to the garden basin (8) by a hinge (14). When the material thickness increases, under the action of the upward force of the material, the push blade (10) has a hinge (14) and can automatically flip upward to avoid the jamming phenomenon. The crusher discharge port (6) is added with a material blocking plate (12), so that the crusher completely eliminates the jamming phenomenon and can work stably.

Description

Technical Field

[0001] The invention relates to a straw crusher, which can crush corn straw, cotton straw, rice straw, reed and the like, and is usually used in the fields of processing cattle and sheep feed, biofuel, biogas, fertilizer and the like. Background Art

[0002] This type of pulverizer usually consists of a flat pulverizer and a round bowl feeder. The flat pulverizer includes a pulverizer feed port, a rotor, a hammer, an inlet guard, a motor, a pulverizer discharge port, a machine body, a screen, etc. The round bowl feeder includes a round bowl, a reduction motor drive device, a push blade, a support wheel, etc. The support wheel base is installed on the machine body of the flat pulverizer, and the round bowl feeder can be lifted by a rotating wheel, and driven by the reduction motor drive device, the round bowl feeder can rotate on the flat pulverizer. When working, the round bowl feeder pushes the straw to the feed port of the flat pulverizer, the motor rotates, drives the rotor to rotate, and then drives the hammer to rotate, bringing the material into the pulverizing chamber and pulverizing it. The qualified ones pass through the screen and go out through the pulverizer outlet, and the unqualified ones continue to be pulverized. The screen aperture determines the fineness of the finished product.

[0003] This type of crusher has the following fatal problems:

[0004] 1. Since the feed port of the flat crusher is facing upward, some materials will be ejected upward when the hammer of the crusher rotates. This upper ejection phenomenon produces a lot of dust, which becomes a new source of pollution, seriously affecting the environment and the health of employees. People have found that improper handling of straw may be more harmful than burning it. With the strengthening of social environmental awareness, a large number of such equipment have been forced to be abandoned and become a pile of scrap metal.

[0005] 2. The round basin feeder rotates in a circle, and the push blades push the material to move. Due to the different thickness of the material layer, when the material is thick, it is easy to get stuck between the push blades and the flat crusher, causing the round basin feeder to malfunction.

[0006] 3. Since the amount of feed cannot be controlled and the different moisture content of the material causes different crushing outputs, when the instantaneous feed amount is greater than the discharge amount, the discharge port will be blocked. In addition, the fiber is also easy to hang on the gap between the screen holes and block the screen holes. For a long time, this has been a key problem that has prevented the straw crusher from being put into practical use. Summary of the invention

[0007] The object of the present invention is to provide a straw crusher, which requires that the feed port of the straw crusher should not have any material spraying phenomenon. At the same time, it has good adaptability to straws of different bundles and thicknesses. There should be no jamming phenomenon between the push blades and the flat crusher, and the discharge port should not be blocked when the feed amount changes.

[0008] The key of the present invention is to adopt a new design, which has the following characteristics:

[0009] A straw crusher is composed of a flat crusher and a round bowl feeder. The flat crusher includes a crusher feed port, a rotor, a hammer, an inlet guard, a motor, a crusher discharge port, a machine body, etc. The round bowl feeder includes a round bowl, a reduction motor drive device, a push blade, a support wheel group, etc. The characteristic is that the crusher feed port is added with an airflow cap at its upper part. The inside of the airflow cap is parabolic, and the tangent direction at the cap edge is projected into the feed port. When the hammer blows out dust upward, it immediately enters the crushing chamber under the guidance of the airflow cap, thereby completely eliminating the spraying phenomenon.

[0010] The round basin feeder described in the above-mentioned straw crusher is composed of a round basin, a reduction motor drive device, a push blade, a support wheel group, etc. Its characteristic is that the push blade is connected to the round basin by a hinge. When the thickness of the material increases, under the action of the upward force of the material, the push blade has a hinge and can flip upward by itself, avoiding jamming.

[0011] The straw crusher described above is characterized in that a material blocking plate is added to the crusher discharge port. The size of the discharge port can be changed by adjusting the material blocking plate up and down. Changing the size of the discharge port can also affect the fineness of the material. The screen structure is omitted and there is no screen blockage. The material blocking plate can also be connected to an electrically controlled pneumatic telescopic device. When the current of the crusher suddenly increases and material blockage occurs, the current sensor sends a signal to make the material blocking plate suddenly open, and the coarse material is immediately discharged. Behind the discharge port, there is a three-way pipe, which is also controlled by the information sent by the current sensor and immediately changes direction, so that the coarse material returns to the raw material bin with dust removal function and can be crushed again. In this way, the crusher completely eliminates the blockage phenomenon and can work stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of a straw crusher.

[0013] Figure 2 yes Figure 1 Top view of the . Specific embodiments

[0014] Embodiment 1 is a straw crusher, which consists of a flat crusher and a round bowl feeder. The flat crusher includes a crusher feed port 1, a rotor 2, a hammer 3, an inlet guard strip 4, a motor 5, a crusher discharge port 6, a body 7, etc. The round bowl feeder includes a round bowl 8, a reduction motor drive device 9, a pusher blade 10, a support wheel group 11, etc., wherein the support wheel group 11 includes 3 support wheels, so that the round bowl 8, 3 points form a surface, which is relatively stable. At the same time, the crusher feed port 1 is increased with an airflow cap 13 on its upper part. When the hammer blows out dust upward, it immediately enters the crushing chamber under the guidance of the airflow cap 13. Figure 1The middle dotted line indicates that the tangent direction of the parabola cap brim is projected into the feed port. The push blade 10 has a pair of hinges 14 connected to the round basin 8. The push blade 10 is triangular and has two pieces. It is connected to the round basin 8 by a hinge. There is a small limit block under the push blade 10, so that the push blade 10 is in a horizontal state under normal circumstances. When the thickness of the material suddenly increases, the push blade 10 flips up under the upward force of the material. A material blocking plate 12 is added to the crusher discharge port 6. The size of the discharge port can be changed by adjusting the material blocking plate 12. There are positioning bolts on the material blocking plate 12. Rotating the positioning bolts can lock the position of the material blocking plate.

[0015] Embodiment 2 is another straw crusher, which is composed of a flat crusher and a round bowl feeder. The flat crusher includes a crusher feed port 1, a rotor 2, a hammer 3, an inlet guard strip 4, a motor 5, a crusher discharge port 6, a body 7, etc. The round bowl feeder includes a round bowl 8, a reduction motor drive device 9, a push blade 10, a support wheel group 11, etc. Among them, the support wheel group 11 includes 3 support wheels, so that the three points of the round bowl form a surface, which is relatively stable. At the same time, the crusher feed port 1 is added with an air flow cap 13 on its upper part. When the hammer blows out dust upward, it immediately enters the crushing chamber under the guidance of the air flow cap 13. However, the air flow cap has a detachable hinge port. When the hammer is worn and the hammer direction needs to be changed, as long as the rotor is reversed and the installation direction of the air flow cap is changed at the same time, the feeding direction can be changed without reinstalling the hammer. The discharging port 6 of the pulverizer is equipped with a material blocking plate 12, which is connected to an electrically controlled pneumatic telescopic device 15. When the current of the pulverizer increases suddenly and material blocking occurs, the current sensor sends a signal to cause the material blocking plate 12 to suddenly open and the coarse materials are immediately discharged. In addition, a tee is also controlled by a signal from the current sensor and changes direction immediately. The discharged materials can pass through a tee to a silo with a dust removal device and be crushed again. When the current of the pulverizer returns to normal, the material blocking plate returns to its initial position and the tee is reset, so that the pulverizer can work stably.

[0016] Beneficial effects:

[0017] The newly invented grinder feed port 1 has an airflow cap 13 added to its upper part. When the hammer blows out dust upward, it immediately enters the grinding chamber under the guidance of the airflow cap 13, and there is no dust spraying upward. At the same time, when the material thickness suddenly increases, the push blade 10 is flipped upward under the action of the upward force of the material to avoid the material being stuck. When the grinder current suddenly increases and material blocking occurs, the current sensor sends information to make the material blocking plate 12 suddenly open, and the coarse material is immediately discharged to avoid the grinder being overloaded and blocked.

[0018] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equivalent change or modification made to the above embodiment based on the technical essence of the present invention belongs to the scope of the technical solution of the present invention.

Claims

1. A straw crusher, characterized in that the crusher is composed of a flat crusher and a round bowl feeder, wherein the flat crusher is mainly composed of a crusher feed port (1), a rotor (2), a hammer (3), an inlet guard strip (4), a motor (5), a crusher discharge port (6), and a machine body (7), and the round bowl feeder is mainly composed of a round bowl (8), a reduction motor drive device (9), a push blade (10), and a support wheel group (11), wherein the crusher has a feed port (1) above the crusher, and the crusher feed port (1) has an airflow cap (13) on its upper part, the airflow cap (13) has a parabolic shape inside, and the tangent direction of the cap edge is projected into the feed port (1), when the hammer (3) blows out dust upward, under the guidance of the airflow cap (13), it immediately enters the crushing chamber, thereby completely eliminating the spraying phenomenon, and the airflow cap (13) has a detachable hinged opening, when the hammer (3) blows out dust upward, the dust immediately enters the crushing chamber under the guidance of the airflow cap (13), thereby completely eliminating the spraying phenomenon, and the airflow cap (13) has a detachable hinged opening, when the hammer When the hammer (3) is worn and the direction of the hammer (3) needs to be changed, the rotor (2) can be reversed and the installation direction of the airflow cap (13) can be changed at the same time to change the feeding direction without reinstalling the hammer (3). A material blocking plate (12) is added to the discharge port (6) below the crusher. The size of the discharge port (6) can be changed by adjusting the material blocking plate (12) up and down. Changing the size of the discharge port (6) can affect the fineness of the material. The screen structure is omitted and there is no screen blocking. The round basin feeder, the support wheel group (11) includes 3 support wheels, so that the three points of the round basin (8) form a surface, which is relatively stable. The push blade (10) is triangular and has two pieces. The push blade (10) is connected to the round basin (8) by a hinge. There is a small limit block under the push blade (10). Under normal circumstances, the push blade (10) is in a horizontal state. When the thickness of the material suddenly increases, the push blade (10) is flipped upward under the action of the upward force of the material.

2. A straw crusher according to claim 1, characterized in that The material blocking plate (12) at the material outlet (6) of the pulverizer is connected to an electrically controlled pneumatic telescopic device (15).

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