Device for preparing activated carbon by extracting coal slime

Abstract

The utility model discloses a device for preparing activated carbon through coal slime extraction, and belongs to the technical field of activated carbon preparation, the device comprises a mixing cylinder, a main shaft, a motor, a stirring plate assembly, a spring and a scraping piece, the main shaft penetrates through a top cover, the motor is arranged on the top cover, and the top end of the main shaft is connected with a vertically downward output shaft of the motor; the bottom end of the main shaft is connected with a bearing preset in the mixing barrel, the stirring plate assembly is arranged on the main shaft and connected with the scraping part through a spring, the scraping part is used for abutting against the inner wall of the mixing barrel, the main shaft is used for driving the stirring plate assembly to rotate to stir and mix materials, and meanwhile, the stirring plate assembly drives the scraping part to scrape off residues on the inner wall of the mixing barrel. The stirring assembly drives the scraping piece to continuously clean and scrape the inner wall of the mixing barrel, residues are prevented from being accumulated and adhered to the inner wall of the mixing barrel, and the workload of cleaning the mixing barrel is greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of activated carbon preparation, in particular, relates to a device for extracting and preparing activated carbon from coal slime. BACKGROUND

[0002] The information provided in this section is for the purpose of generally presenting the context of the application. The work of the presently named inventors, to the extent the descriptions are described in this section, as well as the descriptions of aspects that can not constitute prior art at the time of filing, are neither expressly nor impliedly admitted to be prior art against the application.

[0003] Activated carbon is a kind of special treated carbon, which is heated under the condition of air isolation to reduce non-carbon components, and then reacts with gas, the surface is eroded, and the structure with developed micropore is produced. Since the activation process is a microscopic process, that is, a large number of molecular carbides are eroded on the surface in a point-like manner, so that the activated carbon surface has countless small pores. Activated carbon has the advantages of high strength, developed pores, large specific surface area, etc., and is widely used in the fields of drinking water, industrial wastewater deep purification, food decolorization, air purification, useful element enrichment and recovery, etc. In recent years, with the increasing environmental pollution problem, people pay more and more attention to environmental protection problems such as water treatment and air pollution prevention, and the market demand for activated carbon is increasing.

[0004] Traditional activated carbon is mainly processed and prepared from wood or coal as raw material. Compared with wood-based activated carbon, coal-based activated carbon has the advantages of wide raw material sources and low price, and occupies a large proportion in the market. However, there are not many coal types suitable for making coal-based activated carbon, and sufficient supply of raw materials is an important factor restricting the development of activated carbon industry.

[0005] A kind of coal slime activated carbon and its self-activation preparation method are disclosed in Chinese patent with patent publication number CN110980728A. The method first dries and dehydrates the coal slime, mixes the dried coal slime with coal coke and pitch uniformly to make coal paste, then pyrolyzes and carbonizes in an internal heating rotary kiln, and finally activates the carbonized material in a self-activation device using water vapor and carbon dioxide as activators to obtain coal slime activated carbon. The sludge, pitch and tar used in the present application are all solid waste, and the activators such as carbon dioxide and water vapor required for self-activation come from the tail gas generated by the system multi-chamber furnace, and the heat source required for drying of the system comes from the flue gas waste heat recovery, which effectively saves the cost. The specific surface area of the coal slime activated carbon of the present application is greater than 400-850 m2 / g, and the iodine adsorption value is 300-900 mg / g, which is close to the adsorption performance of coal-based activated carbon.

[0006] The existing process of extracting coal slime to prepare activated carbon needs to mix coal slime with tar. The inner wall of the conventional stirring mixing cylinder is easy to adhere to residues for a long time, increasing the workload and working strength of cleaning, and is not conducive to further improving the production efficiency.

[0007] It should be noted that the information disclosed in the above BACKGROUND section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. Practical new type content

[0008] In view of at least one of the above technical problems, the present application provides a device for extracting coal slime to prepare activated carbon. The device can continuously clean and scrape the inner wall of the mixing cylinder by the scraping member driven by the stirring assembly, thereby avoiding the accumulation of residues on the inner wall of the mixing cylinder and greatly reducing the workload of cleaning the mixing cylinder.

[0009] According to one aspect of the present application, a device for extracting coal slime to prepare activated carbon is provided, comprising a mixing cylinder, a coal slime inlet and a tar inlet are formed on the top cover of the mixing cylinder, a discharge port is arranged at the bottom of the mixing cylinder, and a discharge valve is arranged at the discharge port. The device for extracting coal slime to prepare activated carbon further comprises a main shaft, a motor, a stirring plate assembly, a spring and a scraping member:

[0010] The main shaft penetrates through the top cover, the motor is arranged on the top cover, the top end of the main shaft is connected with the output shaft of the motor vertically downward, the bottom end of the main shaft is connected with a bearing prearranged in the mixing cylinder, the stirring plate assembly is arranged on the main shaft, the stirring plate assembly is connected with the scraping member through the spring, the scraping member is used to abut against the inner wall of the mixing cylinder, and the main shaft is used to drive the stirring plate assembly to rotate for stirring and mixing. At the same time, the stirring plate assembly drives the scraping member to scrape off the residues on the inner wall of the mixing cylinder.

[0011] In some embodiments of the present application, the stirring plate assembly comprises a first stirring plate and a second stirring plate, and the first stirring plate and the second stirring plate are arranged in pairs and spaced apart from top to bottom on the side wall of the main shaft.

[0012] In some embodiments of the present application, the first stirring plate and the second stirring plate are arranged at a certain angle with the vertical direction, and the first stirring plate and the second stirring plate are located on opposite sides of the main shaft and are arranged in a staggered manner.

[0013] In some embodiments of the present application, a plurality of material passing through holes are arrayed on the first stirring plate and the second stirring plate.

[0014] In some embodiments of the present application, one end of the first stirring plate and the second stirring plate close to the inner wall of the mixing cylinder is connected with the scraping member through the spring, respectively.

[0015] In some embodiments of the present application, the scraping member is a plate structure, the scraping member connected to the first stirring plate is arranged parallel to the first stirring plate, and the scraping member connected to the second stirring plate is arranged parallel to the second stirring plate.

[0016] In some embodiments of the present application, the length of the scraping member is greater than the length of the first stirring plate and the second stirring plate.

[0017] In some embodiments of the present application, the coal slime extraction and activated carbon preparation device further comprises a distributing member and a connecting rod, the distributing member is arranged below the coal slime inlet, and the distributing member is connected to the side wall of the mixing cylinder through the connecting rod.

[0018] In some embodiments of the present application, the bearing is located above the discharge port, and the bearing is connected to the side wall of the mixing cylinder through the support rod.

[0019] The present application has the following beneficial effects:

[0020] The coal slime extraction and activated carbon preparation device of the present application drives the main shaft to rotate through the motor, drives the stirring plate assembly to rotate through the main shaft, and then drives the scraping member to rotate through the stirring plate assembly. Since the scraping member abuts against the inner wall of the mixing cylinder, the inner wall of the mixing cylinder can be continuously scraped and cleaned by the scraping member, so that the accumulation of residues on the inner wall of the mixing cylinder is avoided, the cleaning workload and working intensity of the mixing cylinder are effectively reduced, the downtime of the mixing cylinder is reduced, and the overall production efficiency is improved.

[0021] Of course, implementing any product of the present application does not necessarily require achieving all the advantages described above. In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0022] The drawings that form a part of this application are intended to provide further understanding of the present application, and the schematic embodiments of the present application and the description thereof are intended to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 is a schematic diagram of the overall structure of the preferred embodiment of the present application;

[0024] Figure 2 is a schematic diagram of the internal structure of the mixing cylinder of the preferred embodiment of the present application;

[0025] Figure 3 is a schematic diagram of the installation structure of the second stirring plate of the preferred embodiment of the present application;

[0026] Figure 4 is a schematic diagram of the installation position of the distributing member of the preferred embodiment of the present application;

[0027] Legend: 1, mixing drum; 2, top cover; 3, coal slime feed inlet; 4, tar feed inlet; 5, motor; 6, motor support; 7, discharge outlet; 8, discharge valve; 9, support; 10, distribution piece; 11, connecting rod; 12, spring; 13, scraping piece; 14, first stirring plate; 15, through hole; 16, support rod; 17, bottom plate; 18, bearing; 19, main shaft; 20, second stirring plate. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below with reference to the accompanying drawings, but the present application can be implemented in various different ways as defined and covered by the following.

[0029] A device for extracting coal slime to prepare activated carbon, comprising a mixing drum 1, a coal slime feed inlet 3 and a tar feed inlet 4 are formed on the top cover 2 of the mixing drum 1, and a discharge outlet 7 is arranged at the bottom of the mixing drum 1, and a discharge valve 8 is arranged at the discharge outlet 7, the device for extracting coal slime to prepare activated carbon further comprises a main shaft 19, a motor 5, a stirring plate assembly, a spring 12 and a scraping piece 13:

[0030] The main shaft 19 penetrates through the top cover 2, the motor 5 is arranged on the top cover 2, the top end of the main shaft 19 is connected with the output shaft of the motor 5 vertically downward, the bottom end of the main shaft 19 is connected with the pre-set bearing 18 in the mixing drum 1, the stirring plate assembly is arranged on the main shaft 19, the stirring plate assembly is connected with the scraping piece 13 through the spring 12, the scraping piece 13 is used to abut against the inner wall of the mixing drum 1, and the main shaft 19 is used to drive the stirring plate assembly to rotate for stirring and mixing, and the stirring plate assembly drives the scraping piece 13 to scrape off the residues on the inner wall of the mixing drum 1.

[0031] The motor 5 is erected on the top cover 2 through the motor support 6, so as to ensure the stable installation of the motor 5.

[0032] The device for extracting coal slime to prepare activated carbon drives the main shaft 19 to rotate through the motor 5, the main shaft 19 drives the stirring plate assembly to rotate, and then the stirring plate assembly drives the scraping piece 13 to rotate, since the scraping piece 13 abuts against the inner wall of the mixing drum 1, the inner wall of the mixing drum 1 can be continuously scraped and cleaned by the scraping piece 13, so as to avoid the accumulation of residues on the inner wall of the mixing drum 1, effectively reduce the cleaning workload and working strength of the mixing drum 1, reduce the shutdown frequency of the mixing drum 1, and be conducive to improving the overall production efficiency.

[0033] Preferably, please refer to Figure 2 As shown in the figure, the stirring plate assembly comprises a first stirring plate 14 and a second stirring plate 20, and the first stirring plate 14 and the second stirring plate 20 are arranged in pairs from top to bottom on the side wall of the main shaft 19.

[0034] In the preferred embodiment, the first stirring plate 14 and the second stirring plate 20 are arranged at an angle with the vertical direction, and the first stirring plate 14 and the second stirring plate 20 are located on opposite sides of the main shaft 19 and arranged in a staggered manner.

[0035] It can be understood that the first stirring plate 14 and the second stirring plate 20 are arranged in a staggered and inclined manner, so that when the main shaft 19 drives the first stirring plate 14 and the second stirring plate 20 to rotate, the first stirring plate 14 and the second stirring plate 20 can respectively stir and mix the slime and the tar. The inclined arrangement of the first stirring plate 14 and the second stirring plate 20 can reduce the stirring power, which is conducive to stirring the material and achieving better stirring and mixing effect of the material.

[0036] Preferably, as shown in Figure 2 , 3 , a plurality of material passing holes 15 are arranged on the first stirring plate 14 and the second stirring plate 20.

[0037] It can be understood that during the stirring of the material by the first stirring plate 14 and the second stirring plate 20, in order to improve the stirring and mixing effect of the material, a plurality of material passing holes 15 are arranged on the first stirring plate 14 and the second stirring plate 20, so that the material can pass through each material passing hole 15, achieving more precise stirring operation, and further reducing the stirring power, which is conducive to improving the efficiency of stirring and mixing.

[0038] Preferably, as shown in Figure 2 , 3 , one end of the first stirring plate 14 and the second stirring plate 20 close to the inner wall of the mixing cylinder 1 is connected with the material scraping piece 13 through the spring 12.

[0039] It can be understood that the material scraping piece 13 is connected with the first stirring plate 14 and the second stirring plate 20 through the spring 12, achieving elastic installation of the material scraping piece 13, which is conducive to reducing the impact and collision of the material scraping piece 13 on the inner wall of the mixing cylinder 1. The spring 12 provides a buffering effect for the movement of the material scraping piece 13, effectively improving the service life of the material scraping piece 13.

[0040] In the preferred embodiment, as shown in Figure 2 , 3 , the material scraping piece 13 is a plate structure, the material scraping piece 13 connected with the first stirring plate 14 is arranged parallel to the first stirring plate 14, and the material scraping piece 13 connected with the second stirring plate 20 is arranged parallel to the second stirring plate 20.

[0041] It is understandable that the scraper 13 also has a stirring function. Since the scraper 13 connected to it is driven to rotate by the first stirring plate 14 and the second stirring plate 20 respectively, the scraper 13 connected to the first stirring plate 14 is set parallel to the first stirring plate 14 to achieve synchronous movement of the two and reduce the assistance of the scraper 13 in rotating scraping and stirring. The scraper 13 connected to the second stirring plate 20 is set parallel to the second stirring plate 20, which has the same effect.

[0042] Preferably, please refer to Figure 2 , 3 As shown, the length of the scraper 13 is greater than the lengths of the first mixing plate 14 and the second mixing plate 20.

[0043] It is understandable that, in order to ensure that the scraper components 13 arranged at intervals from top to bottom can more comprehensively cover the inner wall of the mixing cylinder 1, the length of the scraper component 13 can be extended to ensure more comprehensive scraping and cleaning of the inner wall of the mixing cylinder 1.

[0044] Preferably, please refer to Figure 1 and 4 As shown, the apparatus for preparing activated carbon from coal slime also includes a material distributor 10 and a connecting rod 11. The material distributor 10 is located below the coal slime inlet 3 and is connected to the side wall of the mixing cylinder 1 via the connecting rod 11. The material distributor 10 has a conical structure.

[0045] Understandably, when coal slime material is fed from the coal slime inlet 3, the material can be initially divided by the cone-shaped material distribution component 10, reducing the phenomenon of material clumping. This is beneficial for cooperating with the mixing component to fully mix the material, ensuring the uniformity and thoroughness of the mixing.

[0046] Preferably, please refer to Figure 2 As shown, bearing 18 is located above discharge port 7, and bearing 18 is connected to the side wall of mixing cylinder 1 through support rod 16.

[0047] Understandably, by supporting the bearing 18 with the support rod 16, the impact of the bearing 18 on the discharge port 7 can be reduced.

[0048] It should be noted that the bottom plate 17 of the mixing cylinder 1 is funnel-shaped, which can further increase the distance between the discharge port 7 and the bearing 18 to ensure that the material is discharged smoothly from the discharge port 7.

[0049] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] The principles and implementations of the present application are described herein with specific examples. The above examples are only used to help understand the method of the present application and its core idea. The above description is only the preferred embodiment of the present application. It should be pointed out that due to the limited nature of the language expression, there are objectively infinite specific structures, and for ordinary skilled persons in the technical field, without departing from the principles of the present application, some improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner. The improvements, refinements, changes or combinations, or without improvement, the concept and technical solution of the utility model are directly applied to other occasions, which should be regarded as the protection of the present application.

Claims

1. An apparatus for preparing activated carbon by extracting coal slime, comprising a mixing cylinder (1), wherein a coal slime inlet (3) and a tar inlet (4) are provided on the top cover (2) of the mixing cylinder (1), and a discharge outlet (7) is provided at the bottom of the mixing cylinder (1), wherein a discharge valve (8) is provided at the discharge outlet (7), characterized in that, The apparatus for extracting activated carbon from coal slime also includes a main shaft (19), a motor (5), a stirring plate assembly, a spring (12), and a scraper (13): The main shaft (19) is installed through the top cover (2), and the motor (5) is installed on the top cover (2). The top end of the main shaft (19) is connected to the vertically downward output shaft of the motor (5), and the bottom end of the main shaft (19) is connected to the pre-set bearing (18) inside the mixing cylinder (1). The stirring plate assembly is installed on the main shaft (19). The stirring plate assembly is connected to the scraper (13) through the spring (12). The scraper (13) is used to abut against the inner wall of the mixing cylinder (1). The main shaft (19) is used to drive the stirring plate assembly to rotate and stir the materials. At the same time, the stirring plate assembly drives the scraper (13) to scrape off the residue on the inner wall of the mixing cylinder (1).

2. The apparatus for preparing activated carbon from coal slime according to claim 1, characterized in that, The stirring plate assembly includes a first stirring plate (14) and a second stirring plate (20), which are arranged in pairs from top to bottom on the side wall of the main shaft (19).

3. The apparatus for preparing activated carbon from coal slime according to claim 2, characterized in that, The first stirring plate (14) and the second stirring plate (20) are both set at a certain angle to the vertical direction, and the first stirring plate (14) and the second stirring plate (20) are located on opposite sides of the main shaft (19) and are staggered.

4. The apparatus for preparing activated carbon from coal slime according to claim 2, characterized in that, Multiple material passage holes (15) are arrayed on both the first stirring plate (14) and the second stirring plate (20).

5. The apparatus for preparing activated carbon from coal slime according to claim 2, characterized in that, The first stirring plate (14) and the second stirring plate (20) are connected to the scraper (13) at one end near the inner wall of the mixing cylinder (1) via springs (12).

6. The apparatus for preparing activated carbon from coal slime according to claim 1 or 5, characterized in that, The scraper (13) has a plate-shaped structure. The scraper (13) connected to the first stirring plate (14) is set parallel to the first stirring plate (14), and the scraper (13) connected to the second stirring plate (20) is set parallel to the second stirring plate (20).

7. The apparatus for preparing activated carbon from coal slime according to claim 6, characterized in that, The length of the scraper (13) is greater than the lengths of the first stirring plate (14) and the second stirring plate (20).

8. The apparatus for preparing activated carbon from coal slime according to claim 1, characterized in that, The apparatus for preparing activated carbon from coal slime also includes a material distribution component (10) and a connecting rod (11). The material distribution component (10) is located below the coal slime inlet (3) and is connected to the side wall of the mixing cylinder (1) via the connecting rod (11). The material distribution component (10) has a conical structure.

9. The apparatus for preparing activated carbon from coal slime according to claim 1, characterized in that, The bearing (18) is located above the discharge port (7) and is connected to the side wall of the mixing cylinder (1) via the support rod (16).

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