Novel crushing device
By combining the design of the crusher, agitator housing, dust removal components, and negative pressure fan, the problems of high dust and low efficiency in the crusher are solved, achieving high-efficiency crushing and low dust emissions, thereby improving material yield and equipment economy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 宁夏新大众机械有限公司
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-15
AI Technical Summary
Existing grinders suffer from problems such as high dust levels and low efficiency when grinding feed, and traditional improvement solutions are either costly or ineffective, impacting both environmental and economic benefits.
The design includes a crusher, an agitator housing, a first dust removal component, a second dust removal component, and a mixing agitator. By combining multi-stage dust removal with a negative pressure fan, it collects and separates dust, improving crushing efficiency and yield while reducing environmental pollution.
It achieves efficient crushing and low dust emissions, improves material yield, reduces equipment costs and environmental impact, and provides a safe working environment.
Smart Images

Figure CN224237041U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material crushing technology, specifically a novel crushing device. Background Technology
[0002] In modern livestock farms, feed is mostly ground using ordinary grinders. However, with the increasing cost of feed, the overall cost of livestock farming is relatively high. To reduce costs, ensure full absorption of nutrients, and minimize feed waste, grinders can be used to produce feed with a finer particle size to meet the requirements of livestock farming. However, to achieve this fine grinding, replacing the screen with a smaller one significantly reduces the grinder's efficiency.
[0003] Furthermore, traditional grinding processes are inefficient and produce a lot of dust, which is not conducive to environmental protection. Purchasing pre-ground feed is costly, and pre-ground feed is prone to moisture and spoilage during transportation. For example, dairy cow feed, when damp, can lead to insufficient daily milk production and a higher rate of disease in dairy cows, indirectly affecting the farm's economic income.
[0004] Therefore, how to improve the machinery and equipment used for grinding feed to solve problems such as high dust and low efficiency in the feed grinding process is a technical problem that urgently needs to be solved. Utility Model Content
[0005] This invention addresses the technical problems existing in the prior art by providing a novel crushing device that avoids dust being directly discharged into the atmosphere and affecting the environment, while improving the material yield.
[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A novel pulverizing device, comprising a pulverizer, a stirring wheel housing, a first dust removal component, a second dust removal component, and a mixing stirring wheel;
[0007] The agitator housing is installed at the discharge port of the crusher, and a discharge agitator is provided inside the agitator housing;
[0008] The suction port of the first dust removal component is connected to the top of the agitator housing through a first air duct; the air outlet of the first dust removal component is connected to the air inlet of the second dust removal component through a second air duct; the discharge port of the first dust removal component and the discharge port of the second dust removal component are both connected to the inlet of the mixing agitator; and the discharge port of the mixing agitator is connected to the discharge agitator.
[0009] As a further technical solution, the discharge end of the discharge agitator extends out of the agitator housing, and the discharge port of the mixing agitator is connected to the portion of the discharge agitator exposed outside the agitator housing.
[0010] As a further technical solution, the first dust removal component includes a first dust collector and a first air blower;
[0011] The dust suction port of the first dust collector is connected to the top of the agitator housing through the first air duct, the discharge port of the first dust collector is connected to the inlet of the first air shut-off fan, and the discharge port of the first air shut-off fan is connected to an inlet of the mixing agitator.
[0012] The air outlet of the first dust collector is connected to the air inlet of the second dust collection component through the second air duct.
[0013] As a further technical solution, the second dust removal component includes a negative pressure fan, a second dust collector, and a second shut-off fan;
[0014] The air outlet of the first dust collector is connected to the air inlet of the negative pressure fan through the second air duct. The air outlet of the negative pressure fan is connected to the air inlet of the second dust collector through the third air duct. The discharge outlet of the second dust collector is connected to the discharge inlet of the second shut-off fan. The discharge outlet of the second shut-off fan is connected to another discharge inlet of the mixing impeller.
[0015] As a further technical solution, the first shut-off fan is connected to the second shut-off fan via a through shaft, and the first shut-off fan and the second shut-off fan are controlled to work synchronously via the through shaft.
[0016] As a further technical solution, the discharge agitator is provided with a receiving hopper on its housing, and the receiving hopper is exposed outside the agitator housing and communicates with the mixing agitator.
[0017] As a further technical solution, a check valve is provided at the discharge end of the discharge agitator.
[0018] As a further technical solution, the first dust collector is a cyclone dust collector.
[0019] As a further technical solution, the second dust collector is a bag filter dust collector.
[0020] The beneficial effects of this utility model are:
[0021] 1. The combined design of the first dust removal component, the second dust removal component, and the mixing impeller allows for the collection of dust generated during the crushing process, filtering out the useful parts of the material and improving the material yield. The second dust removal component creates negative pressure in the crushing chamber, allowing materials with the correct particle size to leave the chamber promptly, thereby improving crushing efficiency. Furthermore, the crushing process is environmentally friendly, as the filtered gas is discharged, meeting environmental protection requirements. 2. The first and second airlock fans are connected by a through shaft, allowing both fans to operate simultaneously by simply activating the motor on one airlock fan, reducing costs.
[0022] In addition, by combining mixing and stirring, the dust generated during the operation of the pulverizer can be collected and the useful part can be separated for use as feed. At the same time, the gas is purified and discharged, reducing the impact on the environment and providing a safer working environment for workers. Attached Figure Description
[0023] Figure 1 , Figure 2 These are three-dimensional structural diagrams of a novel crushing device according to this utility model, showing different applications.
[0024] The attached diagram lists the components represented by each number as follows:
[0025] Crusher 1;
[0026] Agitator housing 2;
[0027] First dust removal component 3, first dust collector 31, first air vent 32;
[0028] Second dust removal component 4, negative pressure fan 41, second dust collector 42, second shut-off fan 43, through shaft 44;
[0029] Mixing impeller 5;
[0030] Discharge agitator 6, check valve 61, receiving hopper 62;
[0031] First air duct 7, second air duct 8, third air duct 9. Detailed Implementation
[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0033] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0034] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.
[0035] Example 1
[0036] A new type of crushing device, see Figure 1 , Figure 2 It includes a crusher 1, an agitator housing 2, a first dust removal component 3, a second dust removal component 4, and a mixing agitator 5;
[0037] The agitator housing 2 is installed at the discharge port of the crusher 1, and the agitator housing 2 is provided with a discharge agitator 6;
[0038] The suction port of the first dust removal component 3 is connected to the top of the agitator housing 2 through the first air duct 7; the air outlet of the first dust removal component 3 is connected to the air inlet of the second dust removal component 4 through the second air duct 8; the discharge port of the first dust removal component 3 and the discharge port of the second dust removal component 4 are both connected to the inlet of the mixing agitator 5; and the discharge port of the mixing agitator 5 is connected to the discharge agitator 6.
[0039] For example, the pulverizer 1 is a water droplet pulverizer 1, which can be used to pulverize corn; the first dust removal component 3 can perform initial filtration of dust from the agitator housing 2. Most of the dust particles with a larger mass settle to the bottom of the first dust removal component 3 and fall into the mixing agitator 5. The smaller dust particles are drawn into the second dust removal component 4 along with the airflow for filtration, thereby improving the dust removal efficiency. At this time, the smaller dust particles are separated and fall into the mixing agitator 5, which improves the powder yield of the material, while the gas is discharged into the atmosphere without polluting the environment.
[0040] In addition, by collecting the dust in the crushed material and then separating and collecting it for reuse, the impact of dust on the environment is reduced. At the same time, the outflow speed of small particle feed is increased, the probability of small particle feed being further crushed is reduced, and working time is saved.
[0041] In order to remove impurities from the material and improve the purity of the output, a magnetic cylinder (not labeled in the figure) is installed at the feed inlet of the crusher 1.
[0042] In the specific implementation process, see Figure 1 , Figure 2 The discharge end of the discharge agitator 6 extends out of the agitator housing 2, and the discharge port of the mixing agitator 5 is connected to the part of the discharge agitator 6 exposed in the agitator housing 2. That is, the inlet end of the discharge agitator 6 is located in the agitator housing 2. Furthermore, in order to avoid material accumulation in the agitator housing 2 and to quickly output the material, the inlet end of the discharge agitator 6 is located below the inlet of the agitator housing 2 to receive the material and send it out. During this process, dust enters the first dust removal assembly 3 from the first air duct 7, which further avoids material accumulation in the agitator housing 2 and improves the material conveying speed.
[0043] To ensure unidirectional material flow and improve stability and reliability, a check valve 61 is provided at the discharge end of the discharge agitator 6.
[0044] In the specific implementation process, see Figure 1 , Figure 2 The first dust removal component 3 includes a first dust collector 31 and a first air blower 32;
[0045] The dust suction port of the first dust collector 31 is connected to the top of the agitator housing 2 through the first air duct 7. The discharge port of the first dust collector 31 is connected to the inlet of the first air shut-off fan 32. The discharge port of the first air shut-off fan 32 is connected to one inlet of the mixing agitator 5.
[0046] The air outlet of the first dust collector 31 is connected to the air inlet of the second dust collection component 4 through the second air duct 8.
[0047] For example, the first dust collector 31 is a cyclone dust collector, which separates dust (i.e., dust-laden airflow) from the agitator housing 2 through centrifugal force and inertial separation principles. Specifically, dust particles in the dust-laden airflow are thrown against the wall of the collector, lose kinetic energy after colliding with the wall, slide down the wall to the ash hopper, and then enter the first airlock fan 32. The purified airflow forms an upward rotating inner vortex in the central area, and is discharged from the top exhaust pipe to the second air duct 8 before entering the second dust collection assembly 4. This process increases the material transport speed in the agitator housing 2.
[0048] In the specific implementation process, see Figure 1 , Figure 2 The second dust removal component 4 includes a negative pressure fan 41, a second dust collector 42, and a second shut-off fan 43;
[0049] The air outlet of the first dust collector 31 is connected to the air inlet of the negative pressure fan 41 through the second air duct 8. The air outlet of the negative pressure fan 41 is connected to the air inlet of the second dust collector 42 through the third air duct 9. The discharge outlet of the second dust collector 42 is connected to the discharge outlet of the second shut-off fan 43. The discharge outlet of the second shut-off fan 43 is connected to another discharge outlet of the mixing impeller 5.
[0050] For example, the negative pressure fan 41 is a high-pressure centrifugal fan, which generates centrifugal force through the high-speed rotation of the impeller, and transfers energy to the gas to obtain higher pressure energy; specifically, the negative pressure fan 41 creates negative pressure in the crushing chamber of the crusher 1, so that materials with qualified particle size can leave the crushing chamber in time, thereby improving the material crushing efficiency; the second dust collector 42 is a bag filter dust collector;
[0051] During operation, the negative pressure fan 41 draws dust from the outlet pipe of the first dust collector 31 into the second dust collector 42 for filtration, so that smaller particles are separated and enter the mixing impeller 5, and finally enter the discharge impeller 6, which further purifies the exhaust gas and improves the yield of crushed materials.
[0052] The structural and positional design of the second fan 43, the second dust collector 42, and the mixing agitator 5 eliminates the need for manual removal of the filter bags on the second dust collector 42 to clean the dust particles, thus simplifying manual operation and improving the intelligence of the setup.
[0053] To reduce costs and achieve synchronous operation of the first airlock 32 and the second airlock 43 to convey materials to the mixing impeller 5, the first airlock 32 is connected to the second airlock 43 via a through shaft 44. The through shaft 44 controls the synchronous operation of the first airlock 32 and the second airlock 43. That is, the two ends of the through shaft 44 are respectively connected to the impellers of the first airlock 32 and the second airlock 43 to achieve coaxial rotation, simplifying the transmission structure. During operation, only the motor on one airlock needs to be turned on to drive the first airlock 32 and the second airlock 43 to work simultaneously and coaxially.
[0054] For example, the first air shut-off fan 32 and the second air shut-off fan 43 are arranged in parallel on the upper part of the mixing agitator 5.
[0055] To improve stability, the discharge agitator 6 is provided with a receiving hopper 62, which is exposed outside the agitator housing 2 and communicates with the mixing agitator 5. That is, the inlet of the receiving hopper 62 is connected to the outlet of the discharge agitator 6, and the outlet of the receiving hopper 62 is connected to the inlet of the mixing agitator 5. It should be noted that the discharge agitator 6 is provided with two receiving hoppers 62, one of which is connected to the first airlock 32, and the other is connected to the second airlock 43.
[0056] The structural design of this embodiment has at least the following advantages:
[0057] 1. The air force generated by the negative pressure fan can promptly suck out the crushed small particles, speed up the discharge speed, avoid over-crushing, and at the same time increase the volume of the crushing chamber and increase the feed rate, thereby significantly improving the crushing efficiency;
[0058] 2. The structural design of this crushing device reduces the complexity of the equipment and the floor space required, thereby lowering equipment investment and operating costs. At the same time, the efficient crushing and dust collection process reduces material loss and subsequent processing costs.
[0059] 3. The rotary valve, combined with structures such as cyclone dust collectors and bag dust collectors, can effectively collect the dust generated during the crushing process, prevent dust from repeatedly entering the system, improve dust collection efficiency, and benefit environmental protection. In this process, the rotary valve, as a key component for dust collection, can ensure smooth dust discharge while preventing gas backflow, thus ensuring stable airflow throughout the system.
[0060] 4. The machine in this embodiment has a compact structure, reasonable design, stable performance, convenient operation and maintenance, and strong adaptability. It can be widely used in various types of breeding farms and feed processing sites.
[0061] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0062] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.
[0063] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A novel pulverizing device, characterized in that, Includes a crusher (1), an agitator housing (2), a first dust removal assembly (3), a second dust removal assembly (4), and a mixing agitator (5); The agitator housing (2) is installed at the discharge port of the crusher (1), and the agitator housing (2) is provided with a discharge agitator (6). The dust suction port of the first dust removal component (3) is connected to the top of the agitator housing (2) through the first air duct (7); the air outlet of the first dust removal component (3) is connected to the air inlet of the second dust removal component (4) through the second air duct (8); the discharge port of the first dust removal component (3) and the discharge port of the second dust removal component (4) are both connected to the inlet of the mixing agitator (5); and the discharge port of the mixing agitator (5) is connected to the discharge agitator (6).
2. The novel pulverizing device according to claim 1, characterized in that, The discharge end of the discharge agitator (6) extends out of the agitator housing (2), and the discharge port of the mixing agitator (5) is connected to the part of the discharge agitator (6) exposed outside the agitator housing (2).
3. The novel pulverizing device according to claim 1, characterized in that, The first dust removal component (3) includes a first dust collector (31) and a first air blower (32); The dust suction port of the first dust collector (31) is connected to the top of the agitator housing (2) through the first air duct (7), the discharge port of the first dust collector (31) is connected to the inlet of the first air shut-off fan (32), and the discharge port of the first air shut-off fan (32) is connected to one inlet of the mixing agitator (5). The air outlet of the first dust collector (31) is connected to the air inlet of the second dust collection component (4) through the second air duct (8).
4. The novel pulverizing device according to claim 3, characterized in that, The second dust removal component (4) includes a negative pressure fan (41), a second dust collector (42), and a second shut-off fan (43). The air outlet of the first dust collector (31) is connected to the air inlet of the negative pressure fan (41) through the second air duct (8). The air outlet of the negative pressure fan (41) is connected to the air inlet of the second dust collector (42) through the third air duct (9). The discharge port of the second dust collector (42) is connected to the inlet of the second shut-off fan (43). The discharge port of the second shut-off fan (43) is connected to the other inlet of the mixing impeller (5).
5. A novel pulverizing device according to claim 4, characterized in that, The first shut-off fan (32) is connected to the second shut-off fan (43) through a through shaft (44), and the first shut-off fan (32) and the second shut-off fan (43) are controlled to work synchronously through the through shaft (44).
6. A novel pulverizing device according to claim 1, characterized in that, The discharge agitator (6) has a receiving hopper (62) on its housing, and the receiving hopper (62) is exposed outside the agitator housing (2) and communicates with the mixing agitator (5).
7. A novel pulverizing device according to claim 1, characterized in that, The discharge end of the discharge agitator (6) is equipped with a check valve (61).
8. A novel pulverizing device according to claim 3, characterized in that, The first dust collector (31) is a cyclone dust collector.
9. A novel pulverizing device according to claim 5, characterized in that, The second dust collector (42) is a bag filter.