Treatment device for extracting trace elements in coal

Abstract

The utility model relates to the technical field of coal treatment devices, in particular to a treatment device for extracting trace elements in coal, which comprises a pretreatment module, the pretreatment module comprises a crushing mechanism, the crushing mechanism is used for crushing the coal, and the pretreatment module further comprises a drying device and a desulfurization device. The drying device is used for drying the crushed coal, and the desulfurization device is used for desulfurizing the dried coal; the mild chemical leaching module is provided with a reagent supply device and a leaching container, and the supply device is used for conveying a chemical reagent into the leaching container; the selective adsorption module is internally provided with an adsorption material, and the adsorption material has a selective adsorption function on target trace elements in the leachate; the recovery and purification module is provided with a desorption device, a purification device and a solidification device, and the problem that a filtering part is prone to being blocked in the coal refining processing process is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal processing device technical field, specifically for a kind of processing device for trace element extraction in coal. BACKGROUND

[0002] Coal contains rich trace elements, such as selenium, germanium, gallium, etc., which have important industrial application value. In the extraction of trace elements in coal using physical methods, it is usually necessary to use a crushing device to crush the coal into the target particle size level. The existing crushing device, such as the coal efficient crushing mechanism disclosed in CN217190019U, discloses a crushing cylinder and a crushing roller located inside the crushing cylinder. A primary crushing roller, a crushing roller, and a grinding roller are provided on the crushing cylinder. The coal is processed by the primary crushing roller to reduce the volume, accelerating the coal into the crushing cylinder. The crushing roller in the crushing cylinder can fully contact the incoming coal, thereby further refining the processing by the crushing roller. Part of the refined coal mixture is discharged outward through a filter plate, and the other part continues to contact the crushing roller until it can be discharged through the filter plate. In the patent document, the filter part is prone to clogging during the refining process. Since the filter plate is fixedly arranged inside the device, it is difficult to clean and maintain, increasing the time cost of maintenance and making it inconvenient to use.

[0003] To solve the above problems, there may be technical means to solve them in the prior art, but the present case wants to provide an alternative or replacement technical solution. UTILITY MODEL CONTENT

[0004] To solve the problems in the background art, the utility model is implemented by the following technical solutions: a processing device for extracting trace elements from coal, comprising:

[0005] A pretreatment module, which includes a crushing mechanism for crushing coal. The pretreatment module also includes a drying device and a desulfurization device. The drying device performs drying treatment on the crushed coal, and the desulfurization device performs desulfurization treatment on the dried coal.

[0006] A mild chemical leaching module is configured with a reagent supply device and a leaching container. The supply device delivers chemical reagents to the leaching container, and the chemical reagents perform leaching operations on the pretreated coal.

[0007] A selective adsorption module is provided with an adsorption material, which has selective adsorption function for target trace elements in leaching solution, for separating target trace elements from leaching solution.

[0008] A recovery and purification module is equipped with a desorption device, a purification device, and a solidification device.

[0009] Preferably, the crushing mechanism comprises a crushing box body provided with a screening crushing structure; the crushing box body comprises two side walls, the bottom of the two side walls is in an arc structure, and connecting walls are symmetrically arranged on the two side walls; the screening crushing structure is mounted on the two side walls, and the screening crushing structure comprises four hydraulic cylinders, the four hydraulic cylinders are symmetrically mounted on the outer side surfaces of the two side walls in pairs, a bottom box is mounted on the telescopic end of the four hydraulic cylinders, and the lower end of the bottom box is in an open structure.

[0010] An enclosing plate is movably mounted on the inner side surface of the bottom box, the enclosing plate comprises two longitudinal connecting plates, the two longitudinal connecting plates are symmetrically mounted on the inner side surface of the bottom box through a plurality of bolts, a horizontal plate is horizontally and symmetrically extended at one end of each of the two longitudinal connecting plates, the horizontal plate is movably attached to the lower end of the connecting wall, an arc-shaped filter plate is extended at one end of the horizontal plate, and the arc-shaped filter plate is movably attached to the bottom of the two side walls.

[0011] Preferably, a crushing assembly is further mounted on the two side walls, the crushing assembly comprises two top rotating rollers and a bottom rotating roller, the two top rotating rollers are movably inserted on the two side walls in a horizontal and symmetrical manner, the bottom rotating roller is movably inserted on the two side walls and located at the middle position below the two top rotating rollers, a plurality of crushing teeth are arranged on the two top rotating rollers and the bottom rotating roller, and a motor is mounted at one end of each of the two top rotating rollers and the bottom rotating roller.

[0012] Preferably, a sealing cover is hinged to the connecting wall, and a supporting leg is mounted on the connecting wall.

[0013] Preferably, a control panel is mounted on the connecting wall.

[0014] Preferably, a stabilizing frame is mounted between the motor and the side wall.

[0015] Compared with the prior art, the utility model has the advantages that the enclosing plate is separated from the crushing box body by the extension of the hydraulic cylinder, then the enclosing plate is separated from the bottom box by dismounting the enclosing plate, the arc-shaped filter plate part is convenient to clean and maintain, the time cost of maintenance is reduced, and the utility model is convenient to use; coal enters the crushing box body from the upper opening of the crushing box body, the two top rotating rollers rotate to crush the coal by the crushing teeth, the crushed coal is filtered by the arc-shaped filter plate and discharged from the lower opening of the bottom box, the motor drives the bottom rotating roller to rotate, the bottom rotating roller is used for dispersing the coal particles at the lowest point of the arc-shaped filter plate, the particles are prevented from accumulating, the arc-shaped filter plate can more effectively filter the coal particles, and the filter part is prevented from being blocked. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 The extraction flow chart of the processing device.

[0017] Fig. 2 The structure schematic view of the crushing mechanism.

[0018] Fig. 3 The structure schematic view of the arc-shaped filter plate.

[0019] Fig. 4 The structure schematic view of the top rotating roller, the bottom rotating roller and the crushing tooth.

[0020] In the figure: 1, side wall, 2, connecting wall, 3, hydraulic cylinder, 4, bottom box, 5, longitudinal connecting plate, 6, horizontal plate, 7, arc-shaped filter plate, 8, top rotating roller, 9, bottom rotating roller, 10, crushing tooth, 11, motor, 12, sealing cover, 13, support leg, 14, control panel, 15, stabilizing frame. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0022] In order to solve the problem that the filtering part is easy to be blocked in the fine processing of coal, and it is difficult to clean and maintain the filtering plate because the filtering plate is fixedly arranged in the device, and the time cost of maintenance is increased, and the use is not convenient, the technical scheme is designed, and the detailed technical scheme is as follows:

[0023] Please refer to Figs. 1 to 4The utility model relates to a processing device for trace element extraction in coal, which comprises a pretreatment module, a crushing mechanism for crushing coal into a predetermined particle size, a drying device for drying the crushed coal, and a desulfurization device for desulfurizing the dried coal. The pretreatment process is designed to optimize the subsequent extraction efficiency of trace elements. A mild chemical leaching module is configured with an environmentally friendly chemical reagent supply device and a leaching container connected thereto. The supply device delivers the chemical reagent to the leaching container, which leaches the pretreated coal with the chemical reagent to dissolve the trace elements in the coal into the leaching solution. A selective adsorption module is internally provided with a specific adsorption material that selectively adsorbs the target trace elements in the leaching solution, thereby separating the target trace elements from the leaching solution. A recovery and purification module is equipped with a desorption device, a purification device, and a solidification device. The desorption device desorbs the trace elements adsorbed on the adsorption material. The purification device purifies the desorbed trace elements. The solidification device solidifies the purified trace elements, thereby facilitating the subsequent application and storage of the trace elements.

[0024] In addition, the crushing mechanism further comprises a crushing box body provided with a screening and crushing structure;

[0025] Specifically, the crushing box body comprises two side walls 1, the bottom of the two side walls 1 is in an arc shape, and a connecting wall 2 is symmetrically arranged on the two side walls 1.

[0026] Specifically, the screening and crushing structure is installed on the two side walls 1, and comprises four hydraulic cylinders 3, which are symmetrically installed on the outer side surfaces of the two side walls 1, two by two. A bottom box 4 is installed on the extension end of the four hydraulic cylinders 3, the lower end of the bottom box 4 is in an open structure, and a closing plate is movably installed on the inner side surface of the bottom box 4.

[0027] Specifically, the closing plate comprises two longitudinal connecting plates 5, which are symmetrically installed on the inner side surface of the bottom box 4 through a plurality of bolts, and a horizontal plate 6 is horizontally and symmetrically extended at one end of the two longitudinal connecting plates 5. The horizontal plate 6 is movably attached to the lower end of the connecting wall 2, and an arc-shaped filter plate 7 is extended at one end of the horizontal plate 6 and movably attached to the bottom of the two side walls 1.

[0028] It should be noted that the closing plate is arranged at the upper opening of the bottom box 4, and the closing plate is installed on the bottom box 4 through the longitudinal connecting plate 5, facilitating the disassembly of the closing plate, the horizontal plate 6 is used to match the lower end of the two side walls 1, and the arc-shaped filter plate 7 is used to filter coal. When the four hydraulic cylinders 3 are retracted to the limit position, the closing plate is closed at the lower end of the two side walls 1 and the connecting wall 2, the four hydraulic cylinders 3 are elongated, the telescopic end of the four hydraulic cylinders 3 drives the bottom box 4 and the closing plate to descend, realizing the separation of the closing plate and the crushing box body, and then the closing plate is separated from the bottom box 4 by disassembling the closing plate, facilitating the cleaning and maintenance of the arc-shaped filter plate 7 part, reducing the time cost of maintenance, and being convenient to use;

[0029] Specifically, the two side walls 1 are also provided with a crushing assembly; the crushing assembly comprises two top rollers 8 and a bottom roller 9, the two top rollers 8 are movably inserted on the two side walls 1 transversely and symmetrically, and the bottom roller 9 is movably inserted on the two side walls 1 and located at the middle position below the two top rollers 8, a plurality of crushing teeth 10 are arranged on the two top rollers 8 and the bottom roller 9, and a motor 11 is installed at one end of the two top rollers 8 and the bottom roller 9;

[0030] It should be noted that the two top rollers 8 and the bottom roller 9 rotate through the work of the motor 11, the two top rollers 8 rotate relative to each other, coal enters the crushing box body from the upper opening of the crushing box body, the two top rollers 8 rotate to crush the coal through the crushing teeth 10, the crushed coal is filtered through the arc-shaped filter plate 7 and discharged from the lower end opening of the bottom box 4, the motor 11 drives the bottom roller 9 to rotate, and the bottom roller 9 is used to disperse the coal particles at the lowest point of the arc-shaped filter plate 7, avoiding the accumulation of particles, which helps the arc-shaped filter plate 7 to more effectively filter the coal particles and prevent blockage;

[0031] As a preferred, further, the connecting wall 2 is hinged with a sealing cover 12 for shielding the top opening of the crushing box body; the connecting wall 2 is provided with a supporting leg 13 for supporting the whole device; the connecting wall 2 is provided with a control panel 14 for controlling the work of the device; the motor 11 and the side wall 1 are provided with a stable frame 15 for fixed installation of the motor 11.

[0032] In the description of the utility model, need understanding is, the term "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "both ends" and so on indicate the orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation;At the same time unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "fixedly install" and so on should be broadly understood, for example, can be fixedly connected, also can be detachably connected, or be integrated;Can be mechanically connected, also can be electrically connected;It can be directly connected, also can be indirectly connected through intermediate medium, can be the communication or mutual action relationship of two elements inside two elements, unless otherwise explicitly limited, for ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A processing device for trace element extraction in coal, characterized by, The application relates to a processing device for extracting trace elements from coal, which comprises the following parts: a pretreatment module, which comprises a crushing mechanism for crushing coal, a drying device for drying the crushed coal and a desulfurization device for desulfurizing the dried coal; a mild chemical leaching module, which is provided with a reagent supply device and a leaching container, the supply device supplies chemical reagents to the leaching container, and the chemical reagents are used for leaching the pretreated coal; a selective adsorption module, which is internally provided with adsorption materials having selective adsorption function for target trace elements in the leaching solution, and is used for separating the target trace elements from the leaching solution; a recovery and purification module, which is provided with a desorption device, a purification device and a solidification device. The crushing mechanism comprises: a crushing box body, which is provided with a screening and crushing structure; the crushing box body comprises two side walls (1), the bottom of each side wall (1) is in arc-shaped structure, a connecting wall (2) is symmetrically arranged on each side wall (1), and a crushing assembly is further arranged on each side wall (1).

2. The processing device for extracting trace elements from coal according to claim 1, wherein: the screening and crushing structure is arranged on the two side walls (1), the screening and crushing structure comprises four hydraulic cylinders (3), the four hydraulic cylinders (3) are symmetrically arranged on the outer wall surface of the two side walls (1), a bottom box (4) is arranged on the telescopic end of each hydraulic cylinder (3), and the lower end of the bottom box (4) is in open structure; a closing plate is movably arranged on the inner wall surface of the bottom box (4), the closing plate comprises two longitudinal connecting plates (5), the two longitudinal connecting plates (5) are symmetrically arranged on the inner wall surface of the bottom box (4) through a plurality of bolts, a horizontal plate (6) is horizontally and symmetrically arranged at one end of each longitudinal connecting plate (5), the horizontal plate (6) is movably attached to the lower end of the connecting wall (2), an arc-shaped filter plate (7) is arranged at one end of the horizontal plate (6), and the arc-shaped filter plate (7) is movably attached to the bottom of each side wall (1).

3. A processing device for extraction of trace elements in coal as claimed in claim 2 wherein, two top rollers (8) are movably arranged on the two side walls (1) and symmetrically arranged with each other, a bottom roller (9) is movably arranged on the two side walls (1) and located below the two top rollers (8), a plurality of crushing teeth (10) are arranged on each top roller (8) and the bottom roller (9), and a motor (11) is arranged at one end of each top roller (8) and the bottom roller (9).

4. A processing device for extraction of trace elements in coal as claimed in claim 2, wherein, a sealing cover (12) is hingedly arranged on the connecting wall (2), and a supporting leg (13) is arranged on the connecting wall (2).

5. A processing device for extraction of trace elements in coal as claimed in claim 2, wherein, a control panel (14) is arranged on the connecting wall (2).

6. A processing device for extraction of trace elements in coal as claimed in claim 3 wherein, a stabilizing frame (15) is arranged between the motor (11) and the side wall (1).

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