Dust-free fine crushing device

Abstract

The utility model discloses a dust-free fine crushing device which comprises a crusher outer shell, two groups of symmetrical crushing rollers are mounted in the crusher outer shell, a plurality of groups of crushing teeth arrayed at equal intervals are arranged on the two groups of crushing rollers, the crushing teeth on the two groups of crushing rollers are symmetrically arranged, a feed port is mounted at the feed end of the crusher outer shell, and a feed port is mounted at the feed end of the crusher outer shell. A negative-pressure fan is mounted on the crusher outer shell, and the air inlet end of the negative-pressure fan is connected with the feeding hole. The charcoal crushing device has the advantages that the feeding port and the negative pressure fan are arranged in a matched mode so that charcoal dust generated by crushing of the crushing rollers can be effectively recycled, material waste caused by scattering of the charcoal dust is effectively avoided, the external environment is protected, meanwhile, the crushing teeth arranged on the crushing rollers at equal intervals can achieve fine crushing of charcoal, and the service life of the charcoal crushing device is prolonged. And by arranging the downward pressing part, the crushed materials can be pressed downwards, so that the crushed materials rapidly pass through the crushing rollers to be discharged, and therefore the crushing efficiency is improved, and dust raising is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pulverizers, in particular to a dust-free fine pulverizing device. Background Art

[0002] Charcoal is a dark brown or black porous solid fuel left after incomplete combustion of wood or wood raw materials, or pyrolysis under air-tight conditions. Charcoal is an impure amorphous carbon that retains the original structure of wood and the tar remaining in the pores. Charcoal was used in the smelting of bronze ware in the Shang Dynasty and iron ware in the Spring and Autumn and Warring States Periods in China, and its hygroscopicity was used to observe climate change. In recent years, my country's charcoal industry has developed rapidly, and the development of the charcoal industry in the domestic and international markets is very promising. Some existing charcoals will generate large dust during the recycling and crushing process, which not only causes a part of the material waste, but also the charcoal debris will cause certain damage to the external environment. Utility Model Content

[0003] The utility model aims to provide a dust-free fine pulverizing device to overcome the disadvantages that some existing charcoal will generate large dust during the recycling and pulverizing process, which not only causes a part of the material waste, but also the charcoal fragments will cause certain damage to the external environment.

[0004] The purpose of the utility model is achieved through the following technical solutions: a dust-free fine pulverizing device, including a pulverizer outer shell, two groups of symmetrical crushing rollers are installed in the pulverizer outer shell, both groups of crushing rollers are provided with multiple groups of equidistant array crushing teeth, the crushing teeth on the two groups of crushing rollers are symmetrically arranged, a feed port is installed at the feed end of the pulverizer outer shell, a negative pressure fan is installed on the pulverizer outer shell, and the air inlet end of the negative pressure fan is connected to the feed port.

[0005] A further technical solution is that a cutting portion is installed at one end of the crushing tooth away from the crushing roller, and a pressing portion is provided at one end of the crushing tooth close to the crushing roller.

[0006] A further technical solution is that an inner bottom wall of the outer shell of the pulverizer is provided with an inclined discharge plate, and a discharge pipe is installed at the discharge end of the discharge plate.

[0007] A further technical solution is that the air outlet end of the negative pressure fan extends into the outer shell of the pulverizer and corresponds to the unloading plate.

[0008] A further technical solution is that a cleaning brush corresponding to the crushing roller is installed on the inner side wall of the outer shell of the pulverizer, and the cleaning brush is in contact with the crushing teeth.

[0009] The utility model has the following advantages: the utility model can effectively recycle the charcoal dust generated by the crushing roller by arranging the feed port and the negative pressure fan in coordination, effectively avoiding the waste of materials caused by the charcoal dust, and protecting the external environment; at the same time, arranging the crushing teeth at equal distances on the crushing roller can realize the fine crushing of the charcoal and improve the crushing efficiency; arranging the downward pressing part can press the crushed material downward so that the crushed material can quickly pass through the crushing roller and fall, thereby improving the crushing efficiency and reducing the generation of dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic cross-sectional view of the overall structure of the utility model;

[0011] Figure 2 This is a schematic top view of the crushing roller of the utility model;

[0012] Figure 3 This is an enlarged structural diagram of the crushing teeth of the utility model;

[0013] In the figure, 1. crusher outer shell; 2. crushing roller; 3. crushing teeth; 301. cutting part; 302. pressing part; 4. feeding port; 5. negative pressure fan; 6. dust collecting pipe; 7. unloading plate; 8. discharging pipe; 9. cleaning brush. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0015] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0016] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0017] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0018] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] like Figure 1-3As shown, a dust-free fine pulverizing device comprises a pulverizer outer shell 1, in which two groups of symmetrical crushing rollers 2 are installed, the crushing rollers 2 are connected to an external power source, and the two groups of crushing rollers 2 are provided with a plurality of groups of crushing teeth 3 in an equidistant array, and the crushing teeth 3 on the two groups of crushing rollers 2 are symmetrically arranged, and a feed port 4 is installed at the feed end of the pulverizer outer shell 1, and a negative pressure fan 5 is installed on the pulverizer outer shell 1, and the air inlet end of the negative pressure fan 5 is connected to the feed port 4. By setting the feed port 4 and the negative pressure fan 5 in coordination, the charcoal dust generated by the crushing of the crushing rollers 2 can be effectively recovered, and the waste of materials caused by the dispersion of charcoal dust can be effectively avoided, and the external environment can be protected. At the same time, the equidistant crushing teeth 3 on the crushing rollers 2 can realize the fine pulverization of charcoal and improve the pulverizing efficiency. The end of the crushing teeth 3 away from the crushing rollers 2 is provided with a cutting portion 301, and the end of the crushing teeth 3 close to the crushing rollers 2 is provided with a pressing portion 302. By setting The cutting part 301 can cut and crush the charcoal raw material. At the same time, the pressing part 302 is set to press the crushed material downward so that the crushed material can quickly pass through the crushing roller 2 to drop, thereby improving the crushing efficiency and reducing the generation of dust. The inner bottom wall of the crusher outer shell 1 is provided with an inclined discharge plate 7, and the discharge end of the discharge plate 7 is installed with a discharge pipe 8. By setting the discharge plate 7 and the discharge pipe 8, the rapid discharge of the material can be facilitated. The air outlet end of the negative pressure fan 5 extends into the crusher outer shell 1 and corresponds to the discharge plate 7. The air outlet end of the negative pressure fan 5 extends into the crusher outer shell 1 and corresponds to the discharge plate 7. While recovering the dust, the air outlet of the negative pressure fan 5 can speed up the discharge efficiency of the material on the discharge plate 7. The inner side wall of the crusher outer shell 1 is installed with a cleaning brush 9 corresponding to the crushing roller 2. The cleaning brush 9 is in contact with the crushing teeth 3. By setting the cleaning brush 9, the residual material on the crushing teeth 3 can be cleaned, thereby improving the crushing efficiency of the crushing teeth 3.

[0021] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust-free fine pulverizing device, comprising a pulverizer outer shell (1), wherein two sets of symmetrical crushing rollers (2) are installed in the pulverizer outer shell (1), characterized in that: The two groups of crushing rollers (2) are each provided with a plurality of groups of crushing teeth (3) arranged in an equidistant array, the crushing teeth (3) on the two groups of crushing rollers (2) are symmetrically arranged, a feed port (4) is installed at the feed end of the outer shell (1) of the pulverizer, a negative pressure fan (5) is installed on the outer shell (1) of the pulverizer, and the air inlet end of the negative pressure fan (5) is connected to the feed port (4); A cutting portion (301) is installed at one end of the crushing tooth (3) away from the crushing roller (2), and a pressing portion (302) is provided at one end of the crushing tooth (3) close to the crushing roller (2).

2. A dust-free fine pulverizing device according to claim 1, characterized in that: The inner bottom wall of the outer shell (1) of the pulverizer is provided with an inclined discharge plate (7), and a discharge pipe (8) is installed at the discharge end of the discharge plate (7).

3. A dust-free fine pulverizing device according to claim 2, characterized in that: The air outlet end of the negative pressure fan (5) extends into the outer shell (1) of the pulverizer and corresponds to the unloading plate (7).

4. The dust-free fine pulverizing device according to claim 1, characterized in that: A cleaning brush (9) corresponding to the crushing roller (2) is installed on the inner side wall of the outer shell (1) of the pulverizer, and the cleaning brush (9) is in contact with the crushing teeth (3).

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