Smashing device used before straw fermentation
By adding a cleanup mechanism to the straw crushing device, using wind power and magnetic blocks to separate impurities, the problem of stones and sand in the straw damaging the blades is solved, thus protecting the equipment and extending its lifespan.
Patent Information
- Application Number
- CN202423079455.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-13
AI Technical Summary
The presence of stones and sand in the straw increases the workload on the crusher and damages the blades, affecting the normal operation of the equipment.
A straw crushing device before fermentation was designed, with an added impurity removal mechanism, including an impurity removal box, a filter screen and a fan. The device separates light and heavy impurities by wind power and uses a magnetic block to adsorb small metal impurities, thus protecting the blades.
It effectively separates impurities such as stones and sand from straw, avoids damage to the blades, and extends the service life of the equipment.
Smart Images

Figure CN223488788U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of straw fermentation equipment, specifically to a straw crushing device before fermentation. Background Technology
[0002] A straw crushing device before fermentation is used to mechanically crush, cut, or break straw. Through crushing, the straw becomes smaller and more uniform in size, providing more favorable conditions for subsequent fermentation, composting, or other biological treatment processes.
[0003] During the straw crushing process, the straw may contain impurities such as stones and sand. These impurities not only increase the burden on the crusher, but they can also damage the blades in the crushing device, or even cause equipment malfunctions.
[0004] In response, the inventors discovered that how to solve the above-mentioned technical problems is a technical problem that urgently needs to be solved by those skilled in the art.
[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0006] To address the aforementioned technical problems, this utility model provides a straw crushing device before fermentation, thereby solving the problems mentioned in the background section.
[0007] This utility model provides the following technical solution:
[0008] A straw crushing device before fermentation includes: a frame, a crushing chamber, a crushing mechanism, a feeding hopper, a motor, and a cleaning mechanism;
[0009] The crushing chamber is fixed to the frame; a feed inlet is provided on one side of the crushing chamber.
[0010] The crushing mechanism includes a rotating shaft rotatably connected in the crushing chamber, multiple rotating arms fixed on the rotating shaft, and a cutter fixed at the end of the rotating arms;
[0011] The motor is fixed on the frame, and the motor's main shaft is driven by the rotating shaft of the crushing mechanism;
[0012] The impurity removal mechanism includes an impurity removal chamber, a filter screen, and a fan;
[0013] The impurity removal box is fixed to one side of the crushing chamber, and the end side wall of the impurity removal box is covered and fastened to the feed inlet;
[0014] The top wall of the impurity removal box is equipped with a straw feeding port; the feed hopper is fixed to the top wall of the impurity removal box and covers the straw feeding port;
[0015] The filter screen is installed in the impurity removal box and is inclined to the horizontal plane; the upper part of the filter screen is located below the straw feeding port;
[0016] An air inlet is provided on the end side wall of the impurity removal box away from the feed inlet; the fan is fixed on the end side wall of the impurity removal box away from the feed inlet, and the fan blades are located at the air inlet position.
[0017] The bottom of the impurity removal box is open; a discharge pipe is fixedly connected to the bottom of the impurity removal box.
[0018] Preferably, during the rotation of the motor-driven rotating arm, the cutter will pass the feed inlet position.
[0019] Preferably, a straw discharge port is provided at the bottom of the crushing chamber.
[0020] Preferably, the filter screen is provided with a magnet.
[0021] The present invention provides a straw crushing device before fermentation, which has the following beneficial effects: The present invention designs a straw crushing device before fermentation. By adding a cleanup mechanism, impurities such as stones and sand mixed in the straw can be separated from the straw, avoiding damage to the blades and protecting the equipment. Attached Figure Description
[0022] Figure 1 This is a structural schematic diagram of the present invention from angle one;
[0023] Figure 2 This is a schematic diagram of the structure of this utility model from angle two;
[0024] Figure 3 This utility model Figure 1 Cross-sectional view along the AA direction;
[0025] Figure 4 This is a schematic diagram of the structure of the impurity removal box after removing one part of the shell.
[0026] Figure 5 This utility model Figure 4 A magnified view of part B in the image. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0028] See Figures 1-5 .
[0029] To address the problems mentioned in the background section, this utility model provides a straw crushing device before fermentation to solve the aforementioned technical problems. The technical solution is as follows:
[0030] A straw crushing device before fermentation includes: a frame 110, a crushing chamber 120, a crushing mechanism, a feeding hopper 140, a motor 160, and a cleaning mechanism;
[0031] The crushing chamber 120 is fixed on the frame 110; a feed inlet 121 is provided on one side of the crushing chamber 120;
[0032] The crushing mechanism includes a rotating shaft rotatably connected in the crushing chamber 120, a plurality of rotating arms 181 fixed on the rotating shaft, and a cutter 182 fixed at the end of the rotating arm 181.
[0033] The motor 160 is fixed on the frame 110, and the main shaft of the motor 160 is driven to be connected to the rotating shaft of the crushing mechanism;
[0034] The impurity removal mechanism includes an impurity removal box 150, a filter screen 160, and a fan 170;
[0035] The impurity removal box 150 is fixed to one side of the crushing chamber 120, and the end side wall of the impurity removal box 150 is covered and fastened to the feed inlet 121;
[0036] A straw feeding port is provided on the top wall of the impurity removal box 150; the feed hopper 140 is fixed to the top wall of the impurity removal box 150 and covers the straw feeding port;
[0037] The filter screen 160 is installed in the impurity removal box 150 and is inclined to the horizontal plane; the upper end of the filter screen 160 is located below the straw feeding port;
[0038] An air inlet is provided on the end side wall of the impurity removal box 150 on the side away from the feed inlet 121; the fan 170 is fixed on the end side wall of the impurity removal box 150 on the side away from the feed inlet 121, and the fan blades of the fan 170 are located at the air inlet position.
[0039] The bottom 151 of the impurity removal box 150 has an open structure; the bottom 151 of the impurity removal box 150 is fixedly connected to the impurity discharge pipe 152.
[0040] In this embodiment, during the rotation of the rotating arm 181 driven by the motor 160, the cutter 182 will pass through the feed inlet 121. The straw enters the crushing chamber 120 from the feed inlet 121. The motor 160 drives the rotating shaft to make the rotating arm 181 drive the cutter 182 to rotate at high speed, thereby crushing the straw entering the feed inlet 121.
[0041] In this embodiment, a straw discharge port 130 is provided at the bottom of the crushing chamber 120; this is an opening at the bottom of the crushing chamber through which the crushed straw is discharged.
[0042] In this embodiment, a magnet is provided on the filter screen 160; the magnet can be used to adsorb and remove some small ferromagnetic impurities, prevent these small metal impurities from damaging the blades, and improve the service life of the crushing device.
[0043] The method of using the straw crushing device before fermentation provided in this embodiment of the utility model is as follows:
[0044] 1. Straw is fed into the feed hopper 140 and then falls naturally into the impurity removal box 150;
[0045] 2. With the blower operating at 170°C, control the appropriate airflow to separate the lightweight straw from heavier impurities (such as stones, sand, etc.); the specific method is as follows:
[0046] (1) Lightweight straw is blown by the wind into the feed inlet 121 of the crushing chamber 12 in the impurity removal box 150 until it is crushed by the crushing mechanism.
[0047] (2) Heavier impurities (such as stones, sand, etc.) roll naturally on the filter screen plate 160. During the rolling process, they pass through the mesh holes on the filter screen plate 160 and are then discharged from the bottom opening 151 of the impurity removal box 150 and the impurity discharge pipe 152 in sequence.
[0048] 3. The straw entering the crushing chamber 12 is crushed by the crushing mechanism and then discharged through the straw discharge port 130.
[0049] The present invention provides a straw crushing device before fermentation, which has the following beneficial effects: The present invention designs a straw crushing device before fermentation. By adding a cleanup mechanism, impurities such as stones and sand mixed in the straw can be separated from the straw, avoiding damage to the blades and protecting the equipment.
[0050] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.
[0051] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0052] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims.
Claims
1. A straw crushing device before fermentation, characterized in that, include: The machine frame, crushing chamber, crushing mechanism, feed hopper, motor, and impurity removal mechanism; The crushing chamber is fixed to the frame; A feed inlet is located on one side of the crushing chamber; The crushing mechanism includes a rotating shaft rotatably connected in the crushing chamber, multiple rotating arms fixed on the rotating shaft, and a cutter fixed at the end of the rotating arms; The motor is fixed on the frame, and the motor's main shaft is driven by the rotating shaft of the crushing mechanism; The impurity removal mechanism includes an impurity removal chamber, a filter screen, and a fan; The impurity removal box is fixed to one side of the crushing chamber, and the end side wall of the impurity removal box is covered and fastened to the feed inlet; The top wall of the impurity removal box is equipped with a straw feeding port; the feed hopper is fixed to the top wall of the impurity removal box and covers the straw feeding port; The filter screen is installed in the impurity removal box and is inclined to the horizontal plane; the upper part of the filter screen is located below the straw feeding port; An air inlet is provided on the end side wall of the impurity removal box away from the feed inlet; the fan is fixed on the end side wall of the impurity removal box away from the feed inlet, and the fan blades are located at the air inlet position. The bottom of the impurity removal box is open; a discharge pipe is fixedly connected to the bottom of the impurity removal box.
2. The straw crushing device before fermentation according to claim 1, characterized in that, During the rotation of the motor-driven rotating arm, the cutter will pass the feed port.
3. The straw crushing device before fermentation according to claim 1, characterized in that, The bottom of the crushing chamber is equipped with a straw discharge port.
4. The straw crushing device before fermentation according to claim 1, characterized in that, Magnets are installed on the filter screen.