Wet powder crushing device

Abstract

The utility model generally relates to the technical field of powder technologies, in particular to a wet powder crushing device. Comprising a crushing chamber shell, a first crushing roller and a second crushing roller, the cross section of the interior of the crushing chamber shell is oval, the first crushing roller is rotatably arranged in the center of the crushing chamber shell, the outer contour of the first crushing roller during rotation is a circle internally connected to the inner wall of the crushing chamber shell, and the second crushing roller is slidably connected with the first crushing roller; and the second crushing roller is in contact with the inner wall of the crushing chamber shell when rotating along with the first crushing roller. The first crushing roller rotates in the crushing chamber shell and drives the second crushing roller to rotate along with the first crushing roller, the second crushing roller can move relative to the first crushing roller due to the centrifugal effect, one end of the second crushing roller is tightly attached to the oval inner wall of the crushing chamber shell, and powder is scraped, swept, extruded and ground; and no crushing gap exists, and the problem that powder cannot be crushed thoroughly through a traditional crusher is solved.

Description

Technical Field

[0001] The utility model generally relates to the technical field of powder material process, and in particular to a wet powder material crushing device. Background Art

[0002] Powder technology has a wide range of applications in practical applications. For example, in the chemical industry, powder can be used to prepare various chemical products, such as coatings, pigments, dyes, etc. In the metallurgical industry, powder can be used to prepare metal powders, such as iron powder, copper powder, etc. In the building materials industry, powder can be used to prepare cement, gypsum, lime and other materials. In the pharmaceutical industry, powder can be used to prepare drug powders and solid drug preparations, etc.

[0003] At present, since powder materials tend to become damp and lumpy after long-term storage, the lumped powder materials will affect the processing quality when used later. Therefore, it is necessary to crush the lumps that may exist in the powder materials before use to ensure processing efficiency. Most existing crushing devices are hammer crushers, and the powder materials will slip through the gaps between the hammers, which is usually not completely crushed. For example, the patent application for a hammer crusher with application number 201110029565.9. Utility Model Content

[0004] The present application provides a wet powder crushing device to solve the problem of incomplete crushing in the prior art.

[0005] The present application provides a wet powder crushing device, comprising: a crushing chamber shell, the cross-section of the interior of the crushing chamber shell is elliptical; a first crushing roller, the first crushing roller is rotatably arranged at the center of the crushing chamber shell, and the outer contour of the first crushing roller when rotating is a circle inscribed in the inner wall of the crushing chamber shell; a second crushing roller, the second crushing roller is slidably connected to the first crushing roller, and the second crushing roller contacts the inner wall of the crushing chamber shell when rotating following the first crushing roller.

[0006] Furthermore, the first crushing roller is provided with an arc-shaped groove for accommodating the second crushing roller, the first surface of the second crushing roller matches the outer contour of the first crushing roller, the second surface of the second crushing roller matches the arc-shaped groove, and the second surface and the arc-shaped groove are slidably matched.

[0007] Furthermore, a slide rail is provided on the surface of the arc-shaped groove along the arc direction, and the second crushing roller is movably arranged on the slide rail.

[0008] Furthermore, it also includes a screen plate, which is arranged at the bottom of the crushing chamber shell and has a plurality of screen holes.

[0009] Furthermore, a pull-out groove is provided on the outer wall of the crushing chamber shell, and the screen plate is detachably arranged at the bottom of the crushing chamber shell through the pull-out groove.

[0010] Furthermore, a baffle is arranged above the first crushing roller, and the baffle is conical.

[0011] Furthermore, an upper cover is provided on the top of the crushing chamber shell, and a feeding hole is opened on the upper cover.

[0012] Furthermore, the first crushing roller is connected to a driving system via a rotating shaft.

[0013] Furthermore, a material discharge chute is provided below the crushing chamber shell.

[0014] Furthermore, it also includes a bracket, and the crushing device is arranged on the bracket.

[0015] It can be seen from the above technical scheme that the advantages and positive effects of the wet powder crushing device of the utility model are: the first crushing roller rotates in the crushing chamber shell, and drives the second crushing roller to follow the rotation. Due to the centrifugal effect, the second crushing roller will be displaced relative to the first crushing roller. One end of the second crushing roller is close to the elliptical inner wall of the crushing chamber shell to scrape and extrude and grind the powder. Since the extrusion process is continuous and there is no crushing gap, the problem of incomplete crushing of powder in traditional crushers is solved. At the same time, by replacing the sieve plate with different diameters of sieve holes, the filtering effect on the powder can be effectively adjusted. Moreover, the powder after crushing is directly discharged from the discharge chute to avoid the waste of powder floating around. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of a crushing structure of a wet powder crushing device disclosed in an embodiment of the present application;

[0018] Figure 2 It is a schematic diagram of the internal structure of a wet powder crushing device disclosed in an embodiment of the present application;

[0019] Figure 3 yes Figure 2 A top view schematic diagram of

[0020] Figure 4It is a schematic diagram of the overall structure of a wet powder crushing device disclosed in an embodiment of the present application.

[0021] Description of reference numerals:

[0022] 1. Crushing chamber shell; 2. First crushing roller; 3. Second crushing roller; 4. Slide rail; 5. Screen plate; 6. Baffle; 7. Upper cover; 8. Rotating shaft; 9. Driving system; 10. Discharge chute; 11. Bracket. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation methods of the present application in conjunction with the accompanying drawings and examples. The detailed descriptions of the following examples and the accompanying drawings are used to exemplarily illustrate the principles of the present application, but cannot be used to limit the scope of the present application. The present application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0024] The present application provides these embodiments to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0025] It should be noted that, in the description of this application, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing this application 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 this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0026] In addition, the words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0027] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0028] All terms used in this application have the same meaning as those understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0029] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0030] like Figure 1 As shown, a wet powder crushing device of the embodiment includes a crushing chamber shell 1, a first crushing roller 2 and a second crushing roller 3. The cross section inside the crushing chamber shell 1 is elliptical; the first crushing roller 2 can be rotatably arranged at the center of the crushing chamber shell 1, and the outer contour of the first crushing roller 2 when rotating is circular and inscribed in the inner wall of the crushing chamber shell 1; the second crushing roller 3 is slidably connected with the first crushing roller 2, and the second crushing roller 3 contacts the inner wall of the crushing chamber shell 1 when following the rotation of the first crushing roller 2. When in use, the first crushing roller 2 rotates in the crushing chamber shell 1 and drives the second crushing roller 3 to follow the rotation. Due to the centrifugal effect, the second crushing roller 3 will be displaced relative to the first crushing roller 2. One end of the second crushing roller 3 is close to the elliptical inner wall of the crushing chamber shell 1 to scrape and squeeze the powder. Since the extrusion process is continuous and there is no crushing gap, the problem of incomplete crushing of powder in traditional crushers is solved. It is particularly noted that the second crushing roller 3 is not limited to one, including two symmetrically arranged on both sides of the first crushing roller 2, or multiple uniformly arranged at multiple locations of the first crushing roller 2. They are not listed here one by one, and similar structures arranged with the same principle should be included in the protection scope of this application.

[0031] like Figure 1As shown, in the technical solution of the first embodiment, the first crushing roller 2 is provided with an arc-shaped groove for accommodating the second crushing roller 3, the first surface of the second crushing roller 3 matches the outer contour of the first crushing roller 2, that is, the outer contour arc of the first surface is consistent with the outer contour arc of the first crushing roller 2, the second surface of the second crushing roller 3 matches the arc-shaped groove, and the second surface and the arc-shaped groove are slidably matched. When no displacement occurs, the first crushing roller 2 and the second crushing roller 3 form a complete circular outer contour; when displacement occurs, one end of the second crushing roller 3 extends along the arc direction of the arc-shaped groove, exceeds the circular outer contour, and is close to the elliptical inner wall of the crushing chamber shell 1 to scrape the powder.

[0032] like Figure 1 As shown, in the technical solution of the first embodiment, the surface of the arc groove is provided with a slide rail 4 along the arc direction, and the arc direction refers to the arc formed by the inward bending of the arc groove of the first crushing roller 2 when viewed from a top view, and the second crushing roller 3 is movably arranged on the slide rail 4. The slide rail 4 can be a dovetail groove, a T-shaped groove, etc., to ensure that the second crushing roller 3 will not separate from the slide rail 4 and separate from the first crushing roller 2 during operation, and lubricating oil, grease, etc. can also be applied to the slide rail 4, thereby reducing the friction coefficient of the second crushing roller 3 relative to the slide rail 4, so that the second crushing roller 3 moves more smoothly relative to the first crushing roller 2.

[0033] like Figure 2 or Figure 3 As shown, in the technical solution of the first embodiment, a sieve plate 5 is further included, the sieve plate 5 is arranged at the bottom of the crushing chamber shell 1, and a plurality of sieve holes are arranged on the sieve plate 5, the aperture size of the sieve holes can be set according to the requirements of the particle size, and the powder that does not meet the requirements cannot pass through the sieve plate 5 and remains in the equipment for further crushing, and the sieve plate 5 can also be used to filter out foreign matter and leave the foreign matter on the sieve plate 5. By replacing the sieve plate 5 with sieve holes of different diameters, the filtering effect on the powder can be effectively adjusted.

[0034] like Figure 2 or Figure 3 As shown, in the technical solution of the first embodiment, a pull-out groove is provided on the outer wall of the crushing chamber shell 1, and the sieve plate 5 is detachably arranged at the bottom of the crushing chamber shell 1 through the pull-out groove, which is convenient for replacing sieve plates 5 with different sieve hole diameters, and convenient for cleaning the sieve plate 5 and removing foreign matter. A handle can be provided on the outside of the sieve plate 5 for easy pulling.

[0035] like Figure 2 or Figure 3As shown, in the technical solution of embodiment 1, a baffle 6 is arranged above the first crushing roller 2. The baffle 6 is conical, and its bottom can cover the top of the first crushing roller 2. The baffle 6 is used to prevent the powder from accumulating on the first crushing roller 2 after falling. The powder is guided to the outside of the first crushing roller 2 through the baffle 6 to be fully crushed.

[0036] like Figure 4 As shown, in the technical solution of the first embodiment, an upper cover 7 is provided on the top of the crushing chamber shell 1, and a feeding hole is provided on the upper cover 7 to facilitate feeding, and the upper cover 7 can prevent powder from splashing outward. The feeding hole can be provided on the upper surface of the upper cover 7 near the edge, and a feeding pipe can be provided on the feeding hole to facilitate connecting the feeding equipment, or to increase the height of the feeding hole to prevent powder from splashing outward.

[0037] like Figure 4 As shown, in the technical solution of the first embodiment, the first crushing roller 2 is connected to the driving system 9 through the rotating shaft 8, and the driving system 9 can be powered by a motor, and then through a speed regulating mechanism, such as a gear set, the power of the motor is matched and transmitted to the rotating shaft 8 through the speed regulating device, and then the rotating shaft 8 drives the first crushing roller 2 to rotate together. It is particularly noted that the rotating shaft 8 can pass through the upper cover 7 and the baffle 6, wherein there is a gap between the rotating shaft 8 and the upper cover 7, that is, the rotation of the rotating shaft 8 will not affect the upper cover 7. There may or may not be a gap between the rotating shaft 8 and the baffle 6, that is, when there is a gap between the rotating shaft 8 and the baffle 6, the baffle 6 will not rotate with the rotating shaft 8, and the baffle 6 is connected to the upper cover 7 or the crushing chamber shell 1 through connecting ribs; when there is no gap between the rotating shaft 8 and the baffle 6, the baffle 6 will rotate with the rotating shaft 8, and the baffle 6 can be integrally cast with the rotating shaft 8. When the rotating shaft 8 rotates, it drives the baffle 6 to rotate, so that the powder falling on the baffle 6 is thrown to the edge due to the influence of centrifugal force.

[0038] like Figure 4 As shown, in the technical solution of embodiment 1, a discharge chute 10 is provided below the crushing chamber shell 1, and the powder after crushing is directly discharged from the discharge chute 10 to avoid the powder floating around and causing waste. The discharge chute 10 can also be directly connected to the subsequent equipment to directly proceed to the next step. The use of the discharge chute 10 makes the connection more convenient.

[0039] like Figure 4As shown, in the technical solution of embodiment 1, a bracket 11 is also included, and the crushing device is arranged on the bracket 11. The crushing device is erected, which can not only fix the equipment and facilitate installation on the workbench, but also facilitate the installation of the discharge chute 10 under the equipment, so as to facilitate the pipeline connection of the subsequent process.

[0040] Usage process:

[0041] First, add the powder to be crushed through the feed hole, then start the drive system 9, drive the first crushing roller 2 to rotate through the shaft 8, the first crushing roller 2 rotates in the crushing chamber shell 1, and drives the second crushing roller 3 to follow the rotation. Due to the centrifugal effect, the second crushing roller 3 will be displaced relative to the first crushing roller 2. One end of the second crushing roller 3 is close to the elliptical inner wall of the crushing chamber shell 1, scraping and squeezing the powder. After the ground powder reaches the particle size requirement, it will pass through the screen plate 5 and fall into the lower material chute 10 to enter the next process.

[0042] So far, various embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed herein.

[0043] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A wet powder crushing device, characterized in that: include: A crushing chamber shell (1), wherein the cross section inside the crushing chamber shell (1) is elliptical; a first crushing roller (2), the first crushing roller (2) being rotatably arranged at the center of the crushing chamber shell (1), and the outer contour of the first crushing roller (2) when rotating is in the form of a circle inscribed in the inner wall of the crushing chamber shell (1); A second crushing roller (3), wherein the second crushing roller (3) is slidably connected to the first crushing roller (2), and the second crushing roller (3) contacts the inner wall of the crushing chamber shell (1) when rotating following the first crushing roller (2).

2. The wet powder crushing device according to claim 1, characterized in that: The first crushing roller (2) is provided with an arc-shaped groove for accommodating the second crushing roller (3); the first surface of the second crushing roller (3) matches the outer contour of the first crushing roller (2); the second surface of the second crushing roller (3) matches the arc-shaped groove; and the second surface and the arc-shaped groove are slidably matched.

3. The wet powder crushing device according to claim 2, characterized in that: A slide rail (4) is arranged on the surface of the arc-shaped groove along the arc direction, and the second crushing roller (3) is movably arranged on the slide rail (4).

4. The wet powder crushing device according to claim 1, characterized in that: It also comprises a screen plate (5), wherein the screen plate (5) is arranged at the bottom of the crushing chamber shell (1), and a plurality of screen holes are arranged on the screen plate (5).

5. The wet powder crushing device according to claim 4, characterized in that: The outer wall of the crushing chamber shell (1) is provided with a drawing groove, and the screen plate (5) is detachably arranged at the bottom of the crushing chamber shell (1) through the drawing groove.

6. The wet powder crushing device according to claim 1, characterized in that: A baffle (6) is arranged above the first crushing roller (2), and the baffle (6) is conical.

7. The wet powder crushing device according to claim 1, characterized in that: An upper cover (7) is provided on the top of the crushing chamber shell (1), and a feeding hole is provided on the upper cover (7).

8. The wet powder crushing device according to claim 1, characterized in that: The first crushing roller (2) is connected to a driving system (9) via a rotating shaft (8).

9. The wet powder crushing device according to claim 1, characterized in that: A material discharge chute (10) is provided below the crushing chamber shell (1).

10. The wet powder crushing device according to any one of claims 1 to 9, characterized in that: It also comprises a support (11), on which the crushing device is arranged.

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