Raw material screening device for activated carbon preparation

Abstract

The utility model discloses a raw material screening device for activated carbon preparation, and relates to the technical field of activated carbon preparation equipment. Through the arrangement of a stripping column, activated carbon raw materials fall on a screen plate after entering a screening machine shell, the screen plate screens the raw materials in the rotating process, and in the process, the raw materials are separated from the screening machine shell through the stripping column. The raw materials passing through the screening holes are scraped by the stripping columns, so that soft flocks, chippings and the like on the surfaces of the raw materials are stripped, burrs of the screened raw materials are greatly reduced, the raw materials can be subjected to burr removal treatment during screening, follow-up use of the raw materials is facilitated, and compared with the prior art, the equipment cost and the time cost are saved. And through the arrangement of the convex cones, in the rotating process of the screen plate, the raw materials on the screen plate are further subjected to burr removal operation, so that the burr removal effect is more remarkable, the burr removal operation efficiency of the raw materials can be improved, and the cleanliness of the raw materials can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of activated carbon preparation equipment, in particular to a raw material screening device for activated carbon preparation. Background Art

[0002] Activated carbon has a highly developed pore structure and a huge specific surface area. It also contains or artificially creates some organic functional groups on its surface. In addition, activated carbon has stable physical and chemical properties, which enable it to exert its excellent adsorption and catalytic properties in different temperatures, pH values ​​and various solvents, the ability to accumulate and retain adsorbates in the pores, and the ability of carbon itself to react with other substances. Due to the excellent properties of activated carbon as an adsorbent, it is widely used in various fields such as industry, agriculture, national defense, science and technology, environmental protection and people's lives. Activated carbon has become an indispensable and important industrial product in the national economy.

[0003] In the existing activated carbon preparation process, it is usually necessary to screen the raw materials of activated carbon to ensure that the activated carbon particles produced subsequently are uniform and the qualified rate of the finished products is high. This requires the use of a raw material screening device for activated carbon preparation;

[0004] The raw material screening devices in the prior art mostly adopt the linear vibrating screen or disc vibrating screen commonly used in the prior art. Although it can achieve a good screening effect, due to the particularity of the activated carbon raw materials (the activated carbon raw materials include fruit shells, wood and other materials), the activated carbon raw material particles after screening usually have more irregular burrs, fibers, etc., which are easy to have an adverse effect on the subsequent activated carbon preparation. The solution in the prior art is to perform secondary processing after screening, which requires the use of additional equipment and increases the production process. Therefore, a raw material screening device for activated carbon preparation is needed. Utility Model Content

[0005] The purpose of the present application is to provide a raw material screening device for the preparation of activated carbon to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a raw material screening device for the preparation of activated carbon, comprising a screening housing, a screen plate installed in the screening housing, a driving motor fixed to the lower end of the screening housing, the driving motor drives the screen plate to rotate through a rotating shaft and an elastic connecting assembly and is elastically connected to the screen plate, a lifting mechanism is installed in the screening housing, and the lifting mechanism intermittently lifts the screen plate during the rotation of the screen plate to make it move up and down in a straight line;

[0007] The screen plate is a circular plate structure with multiple evenly distributed screen holes. Stripping columns are fixed to the inner walls of the multiple screen holes. There are multiple stripping columns distributed in an equidistant circular array along the inner walls of the screen holes. The stripping columns are cylindrical, prismatic or special-shaped columns.

[0008] Preferably, the upper end of the stripping column protrudes above the surface of the screen plate and forms a convex cone, and the convex cone is in a cone shape, a pyramid shape or a special-shaped cone shape that matches the stripping column.

[0009] Preferably, the elastic connection assembly comprises:

[0010] A fixed plate, the fixed plate is fixed to the upper end of the rotating shaft;

[0011] A movable plate, the movable plate is fixed to the lower end of the screen plate;

[0012] A sliding column, the upper end of which is fixed to the lower end of the movable plate, and the lower end of which slides through the fixed plate to form a limiting portion;

[0013] The return spring is sleeved on the sliding column, and the upper and lower ends of the return spring are respectively fixed to the lower end of the fixing plate and the upper end of the limiting part of the sliding column.

[0014] Preferably, the lifting mechanism comprises:

[0015] A fixed block, the fixed block is fixed to the inner wall of the screening machine housing, and both sides of the fixed block are provided with upwardly inclined chamfers;

[0016] A lifting block, the lifting block is fixed to the bottom surface of the screen plate, and both sides of the lifting block are provided with downwardly inclined chamfers;

[0017] When the lifting block contacts the fixed block, it rises upward under the action of the two chamfers.

[0018] Preferably, the screen plate is a hemispherical mesh structure that is concave downward, and a plurality of screen holes are evenly distributed in the middle of the hemispherical surface of the screen plate.

[0019] Preferably, an elastic material receiving hopper is fixed to the inner wall of the screening machine housing, the elastic material receiving hopper is arranged at the lower end of the screen plate, and is covered on the outside of the screen plate.

[0020] In summary, the technical effects and advantages of the utility model are:

[0021] 1. In the utility model, through the stripping column setting, the activated carbon raw material falls on the screen plate after entering the screening machine casing. The screen plate screens the raw material during the rotation process. In this process, the stripping column scrapes the raw material passing through the sieve hole, so that the hair and debris on the surface of the raw material are peeled off, thereby greatly reducing the burrs of the raw material after screening. The raw material can be deburred during screening, which is convenient for the subsequent use of the raw material. Compared with the existing technology, it saves equipment cost and time cost.

[0022] 2. In the utility model, by setting the convex cone, the raw materials on the screen plate are further deburred during the rotation of the screen plate, so that the deburring effect is more significant, which can improve the deburring efficiency of the raw materials and improve the cleanliness of the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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 those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a schematic cross-sectional view of the structure in Example 1;

[0025] Figure 2 It is a schematic diagram of the structure of the screen plate in Example 1;

[0026] Figure 3 for Figure 2 A magnified view of the structure at A;

[0027] Figure 4 This is a schematic diagram of the structure of the elastic connection component in Example 1;

[0028] Figure 5 This is a cross-sectional view of implementation 2.

[0029] In the figure: 1. screening machine casing; 2. driving motor; 3. screen plate; 31. screen hole; 32. stripping column; 321. convex cone; 4. elastic connecting assembly; 41. fixed plate; 42. movable plate; 43. sliding column; 44. reset spring; 5. fixed block; 6. lifting block; 7. elastic receiving hopper. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Example 1

[0032] refer to Figure 1-4A raw material screening device for preparing activated carbon is shown, comprising a screening housing 1, wherein a feed port and a discharge port are respectively arranged at the upper and lower ends of the screening housing 1, a screen plate 3 is installed in the screening housing 1, a driving motor 2 is fixed at the lower end of the screening housing 1, the driving motor 2 drives the screen plate 3 to rotate through a rotating shaft and an elastic connecting component 4 and is elastically connected to the screen plate 3, a lifting mechanism is installed in the screening housing 1, and the lifting mechanism intermittently lifts the screen plate 3 during the rotation of the screen plate 3 to make it move up and down in a straight line;

[0033] The sieve plate 3 is a circular plate structure, with multiple evenly distributed sieve holes 31 formed on the sieve plate 3. Stripping columns 32 are fixed to the inner walls of the multiple sieve holes 31. There are multiple stripping columns 32 and they are distributed in an equidistant circular array along the inner walls of the sieve holes 31. The stripping columns 32 are cylindrical, prismatic or irregularly shaped.

[0034] Based on the above structure, the activated carbon raw material falls on the screen plate 3 after entering the screening machine housing 1. The screen plate 3 screens the raw material during rotation. During this process, the stripping column 32 scrapes the raw material passing through the screen hole 31, so that the hair and debris on the surface of the raw material are peeled off, thereby greatly reducing the burrs of the raw material after screening. The raw material can be deburred during screening, which is convenient for the subsequent use of the raw material.

[0035] It should be noted that in order to remove raw materials that do not meet the screening standards, an opening (not shown in the figure) should be provided on one side of the screening casing 1 above the screen plate 3 for removing the raw materials, and the opening should also be provided with a side panel (not shown in the figure) for easy opening and closing.

[0036] Furthermore, the upper end of the stripping column 32 protrudes above the surface of the screen plate 3 to form a convex cone 321 . The convex cone 321 is in a cone, pyramid or special-shaped cone shape that matches the stripping column 32 .

[0037] By setting the convex cone 321, the raw material on the screen plate 3 is further deburred during the rotation of the screen plate 3, so that the deburring effect is more significant, which can improve the deburring efficiency of the raw material and improve the cleanliness of the raw material.

[0038] Furthermore, the elastic connection assembly 4 includes a fixed plate 41, a movable plate 42, a sliding column 43 and a return spring 44. The fixed plate 41 is fixed to the upper end of the rotating shaft, the movable plate 42 is fixed to the lower end of the screen plate 3, the upper end of the sliding column 43 is fixed to the lower end of the movable plate 42, the lower end of the sliding column 43 slides through the fixed plate 41 and forms a limiting portion, the return spring 44 is sleeved on the sliding column 43, and the upper and lower ends of the return spring 44 are respectively fixed to the lower end of the fixed plate 41 and the upper end of the limiting portion of the sliding column 43.

[0039] Further, the lifting mechanism includes a fixed block 5 and a lifting block 6, the fixed block 5 is fixed to the inner wall of the screening housing 1, and both sides of the fixed block 5 are provided with upwardly inclined chamfers, and the lifting block 6 is fixed to the bottom surface of the screen plate 3, and both sides of the lifting block 6 are provided with downwardly inclined chamfers;

[0040] When the lifting block 6 contacts the fixing block 5 , it rises upwards under the action of the two chamfers.

[0041] By providing the elastic connection assembly 4 and the lifting mechanism, the screen plate 3 can be vibrated up and down while maintaining rotation, thereby improving the screening efficiency of the screen plate 3 .

[0042] Example 2

[0043] refer to Figure 5 The raw material screening device for preparing activated carbon shown in the figure is different from Example 1 in that the screen plate 3 is a hemispherical mesh cover structure that is concave downward, and a plurality of screen holes 31 are evenly distributed in the middle of the hemispherical surface of the screen plate 3.

[0044] The screen plate 3 is set as a downwardly concave hemispherical mesh cover structure. When the screen plate 3 rotates, it can better drive the raw material to move in a circular motion inside the screen plate 3, thereby improving the deburring effect on the raw material. When the raw material is screened by centrifugal force, the speed at which the raw material passes through the screen hole 31 can be accelerated, thereby improving the screening efficiency.

[0045] Furthermore, an elastic material receiving hopper 7 is fixed to the inner wall of the screening casing 1. The elastic material receiving hopper 7 is arranged at the lower end of the screen plate 3 and is covered on the outside of the screen plate 3. The elastic material receiving hopper 7 is made of an elastic material commonly used in the prior art and suitable for the present embodiment. It has good elastic deformation performance and can buffer and stop the raw materials thrown out by the screen plate 3, thereby avoiding a hard collision between the raw materials and the inner wall of the screening casing 1, thereby improving the qualified rate of the raw materials after screening.

[0046] Working principle of the utility model: in daily use, the activated carbon raw material enters the screening machine housing 1 and falls on the screen plate 3. The screen plate 3 screens the raw material during rotation. In this process, the stripping column 32 scrapes the raw material passing through the screen hole 31, so that the hair and debris on the surface of the raw material are peeled off, thereby greatly reducing the burrs of the raw material after screening. In the rotation of the screen plate 3, the convex cone 321 further deburrs the raw material on the screen plate 3, making the deburring effect more significant, which can improve the efficiency of the deburring operation of the raw material, improve the cleanliness of the raw material, and can deburr the raw material during screening, which is convenient for the subsequent use of the raw material. Compared with the existing technology, it saves equipment cost and time cost.

[0047] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to 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 utility model shall be included in the protection scope of the present utility model.

Claims

1. A raw material screening device for preparing activated carbon, comprising a screening housing (1), a screen plate (3) installed in the screening housing (1), a drive motor (2) fixed to the lower end of the screening housing (1), the drive motor (2) driving the screen plate (3) to rotate through a rotating shaft and an elastic connection component (4) and elastically connected to the screen plate (3), a lifting mechanism installed in the screening housing (1), the lifting mechanism intermittently lifting the screen plate (3) during the rotation of the screen plate (3) to make it move up and down linearly, characterized in that: The sieve plate (3) is a circular plate-shaped structure, and is provided with a plurality of evenly distributed sieve holes (31). The inner walls of the plurality of sieve holes (31) are all fixed with stripping columns (32). The stripping columns (32) are provided in plurality and are distributed in an equidistant circular array along the inner walls of the sieve holes (31). The stripping columns (32) are cylindrical, prism-shaped or specially shaped.

2. A raw material screening device for preparing activated carbon according to claim 1, characterized in that: The upper end of the stripping column (32) protrudes above the surface of the screen plate (3) to form a convex cone (321), and the convex cone (321) is in a cone shape, a pyramid shape or a special-shaped cone shape that matches the stripping column (32).

3. A raw material screening device for preparing activated carbon according to claim 1, characterized in that: The elastic connection component (4) comprises: A fixing plate (41), wherein the fixing plate (41) is fixed to the upper end of the rotating shaft; A movable plate (42), wherein the movable plate (42) is fixed to the lower end of the screen plate (3); A sliding column (43), the upper end of the sliding column (43) is fixed to the lower end of the movable plate (42), and the lower end of the sliding column (43) slides through the fixed plate (41) to form a limiting portion; A return spring (44) is sleeved on the slide post (43), and the upper and lower ends of the return spring (44) are respectively fixed to the lower end of the fixing plate (41) and the upper end of the limiting portion of the slide post (43).

4. A raw material screening device for preparing activated carbon according to claim 1, characterized in that: The lifting mechanism comprises: A fixed block (5), the fixed block (5) being fixed to the inner wall of the screening housing (1), and both sides of the fixed block (5) being provided with chamfers inclined upwards; A lifting block (6), the lifting block (6) being fixed to the bottom surface of the screen plate (3), and both sides of the lifting block (6) being provided with downwardly inclined chamfers; When the lifting block (6) contacts the fixing block (5), it rises upwards under the action of the two chamfers.

5. A raw material screening device for preparing activated carbon according to claim 1, characterized in that: The screen plate (3) is a hemispherical mesh structure that is concave downward, and a plurality of screen holes (31) are evenly distributed in the middle of the hemispherical curved surface of the screen plate (3).

6. A raw material screening device for preparing activated carbon according to claim 5, characterized in that: An elastic material receiving hopper (7) is fixed to the inner wall of the screening machine housing (1); the elastic material receiving hopper (7) is arranged at the lower end of the screen plate (3) and covers the outside of the screen plate (3).

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