Multilayer screening device for coal production

Abstract

The utility model discloses a multi-layer screening device for coal production, which comprises a rack, a shell, a vibration machine and a plurality of screening trays, the shell is arranged at the upper end of the rack, the vibration machine is arranged on the lower surface of the shell, the screening trays are arranged in the shell, and the rear ends of the screening trays respectively extend out of the shell. According to the multi-layer screening device, the rack, the shell, the vibration machine, the screening disc, the sealing assembly, the sealing plate, the rotating piece, the connecting groove, the rotating shaft, the connecting piece, the dust removal mechanism, the filtering assembly, the opening, the filtering plate, the dust suction assembly, the dust extractor, the motor, the pipeline, the storage barrel, the material opening and the baffle are used in cooperation; and a large amount of coal dust can be blown out and cannot be treated, so that the coal dust can be blown out randomly to influence the working environment.

Description

Technical Field

[0001] The utility model belongs to the technical field of screening devices, in particular to a multi-layer screening device for coal production. Background Art

[0002] Coal is a solid combustible mineral that is gradually formed by ancient plants buried underground and undergoing complex biochemical and physicochemical changes. It is also called black gold and industrial food. It is mainly composed of carbon, hydrogen, oxygen, nitrogen, sulfur and other elements, among which carbon, hydrogen and oxygen are the main organic matter in coal. Coal plays an important role in human production and life. It has been one of the main energy sources used by the human world since the 18th century, especially in power generation, steam locomotives, building materials, general industrial boilers, life and metallurgy. Coal production is a complex process, including coal mining, transportation, pretreatment, crushing and grinding, heat treatment, screening and grading. In the whole process, screening and grading is an important step, which can separate coal into products of different qualities or particle sizes to meet the needs of different industries. Therefore, multi-layer screening devices are used, especially multi-layer vibrating screens, which play a key role in the washing and grading of coal. The working principle of multi-layer vibrating screens is to use vibration force to screen materials on multi-layer screens. When the vibrator starts working, upward and downward vibration forces will be generated inside the screen box, which will throw the materials onto the screen. Materials of different sizes will be screened step by step on screens of different levels to achieve the desired grading effect. Multi-layer vibrating screens can screen materials of different particle sizes at the same time, thereby realizing efficient production operations.

[0003] The problem with the prior art is that when the existing multi-layer screening device is screening coal, a large amount of coal dust will be emitted and cannot be processed, thereby causing the coal dust to float freely and affect the working environment. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a multi-layer screening device for coal production, which has the advantages of sealing and sucking out the coal dust generated during screening for centralized collection, thereby solving the problem that when the existing multi-layer screening device is screening coal, a large amount of coal dust will be emitted and cannot be processed, thereby causing the coal dust to float out at will and affect the working environment.

[0005] The utility model is implemented as follows: a multi-layer screening device for coal production includes a frame, a shell, a vibrator and a sieve plate, wherein the shell is arranged at the upper end of the frame, the vibrator is arranged at the lower surface of the shell, the number of the sieve plates is several, and they are arranged inside the shell, and their rear ends extend out of the shell respectively, a sealing assembly is arranged above the shell, and a dust removal mechanism is arranged above the sealing assembly.

[0006] The sealing assembly which is preferred in the present invention comprises a sealing plate and a rotating part, wherein the sealing plate is placed on the upper surface of the shell, and the number of the rotating parts is two, which are respectively arranged on the right side of the sealing plate. The sealing assembly is arranged to seal the upper end of the shell, and when screening coal, the coal dust generated during the screening process is sealed in the shell, thereby preventing a large amount of coal dust from floating out and affecting the working environment.

[0007] The preferred rotating part of the utility model includes a connecting groove, a rotating shaft and a connecting part. The number of the connecting grooves is two, and they are respectively opened on the right side of the sealing plate and the upper end of the right side of the shell. The number of the rotating shafts is two, and they are respectively arranged in the two connecting grooves. The front and rear ends of the rotating shaft are respectively fixedly connected to the internal front surface and the internal rear surface of the connecting groove. The connecting part is arranged in the connecting groove, and the upper and lower ends are respectively rotatably connected to the two rotating shafts. By setting the rotating part, the sealing plate can be fixed to the upper surface of the shell, and the sealing plate can be flipped open when the multi-layer screening device is not in use.

[0008] The preferred dust removal mechanism of the utility model includes a filter assembly and a dust suction assembly. The filter assembly is arranged on the upper surface of the sealing plate, and the dust suction assembly is arranged above the filter assembly. By arranging the dust removal mechanism, the coal dust blocked by the sealing assembly in the shell can be sucked out.

[0009] The preferred filter assembly of the utility model includes an opening and a filter plate, wherein the opening is provided on the upper surface of the sealing plate and passes through to the interior of the shell, and the filter plate is arranged inside the opening and fixedly connected to the inner surface of the opening. By arranging the filter assembly, when the dust collection assembly sucks out the coal dust in the shell, it is avoided that other larger debris in the coal is sucked into the dust collector, thereby damaging the effect of the dust collector.

[0010] The preferred dust collection component of the utility model includes a dust collector, a motor, a pipe and a storage cylinder. The dust collector is arranged directly above the opening, and the lower end is fixedly connected to the upper surface of the sealing plate. The motor is arranged at the right end of the dust collector, and the storage cylinder is placed on the left side of the frame. The dust collector is interconnected with the storage cylinder through a pipe, and the two ends of the pipe are movably connected to the storage cylinder and the dust collector respectively. By setting up the dust collection component, the coal dust in the shell can be sucked out and collected in a centralized manner.

[0011] As a preferred embodiment of the present invention, a material port is provided at the front end of the upper surface of the sealing plate, and the material port passes through to the interior of the shell. A baffle is provided directly above the material port, and the lower end of the baffle is fixedly connected to the sealing plate. The material port and the baffle are provided to serve the purpose of pouring coal into the shell.

[0012] As a preferred embodiment of the utility model, a knocking assembly is provided on the left side of the shell, and the knocking assembly includes a driving rod, a rubber stick, a knocking head and a knocking box. The driving rod is fixedly connected to the left surface of the shell, and the rubber sticks are two in number and fixedly connected to the left end of the driving rod. The knocking box is fixedly connected to the pipe, and the knocking head is arranged in the knocking box and fixedly connected to the left end of the rubber stick. By setting the knocking assembly, when the shell of the equipment is shaken during operation, the driving rod will be driven to shake, and the shaking of the driving rod will swing the knocking head through the rubber stick, and the swing of the knocking head will knock the knocking box connected to the pipe, and the problem of pipe blockage can be avoided by knocking the knocking box arranged on the pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model solves the problem that a large amount of coal dust will be emitted from the existing multi-layer screening device when screening coal, and cannot be processed, thereby causing the coal dust to float out at will and affect the working environment, by arranging a frame, a shell, a vibrator, a sieve plate, a sealing assembly, a sealing plate, a rotating part, a connecting groove, a rotating shaft, a connecting part, a dust removal mechanism, a filter assembly, an opening, a filter plate, a dust suction assembly, a dust extractor, a motor, a pipeline, a storage cylinder, a material port and a baffle for coordinated use.

[0015] 2. The utility model provides a sealing component to seal the upper end of the shell. When screening coal, it can seal the coal dust generated during the screening process in the shell to prevent a large amount of coal dust from floating out and affecting the working environment.

[0016] 3. The utility model has the function of sucking out the coal dust blocked by the sealing component in the shell by arranging the dust removal mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of a multi-layer screening device provided by an embodiment of the utility model;

[0018] Figure 2 The utility model embodiment provides Figure 1 A local enlarged schematic diagram of the middle A;

[0019] Figure 3 It is a schematic diagram of a first partially cutaway three-dimensional structure of a multi-layer screening device provided by an embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of a second partially cutaway three-dimensional structure of a multi-layer screening device provided by an embodiment of the utility model;

[0021] Figure 5 The utility model embodiment provides Figure 3 A local enlarged schematic diagram of point B in the middle.

[0022] In the figure: 1. frame; 2. shell; 3. vibrator; 4. sieve plate; 5. sealing assembly; 51. sealing plate; 52. rotating member; 521. connecting groove; 522. rotating shaft; 523. connecting member; 6. dust removal mechanism; 61. filtering assembly; 611. opening; 612. filter plate; 62. dust suction assembly; 621. dust extractor; 622. motor; 623. pipeline; 624. storage cylinder; 7. material port; 8. baffle; 9. knocking assembly; 91. driving rod; 92. rubber stick; 93. knocking head; 94. knocking box. DETAILED DESCRIPTION

[0023] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0024] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0025] like Figures 1 to 5 As shown, a multi-layer screening device for coal production provided by an embodiment of the utility model includes a frame 1, a shell 2, a vibrator 3 and a sieve plate 4, the shell 2 is arranged at the upper end of the frame 1, the vibrator 3 is arranged on the lower surface of the shell 2, the number of sieve plates 4 is several, and they are arranged inside the shell 2, and the rear ends thereof extend out of the shell 2 respectively, a sealing assembly 5 is arranged above the shell 2, and a dust removal mechanism 6 is arranged above the sealing assembly 5.

[0026] refer to Figure 1 The sealing assembly 5 includes a sealing plate 51 and a rotating member 52 . The sealing plate 51 is placed on the upper surface of the housing 2 . There are two rotating members 52 , which are respectively arranged on the right side of the sealing plate 51 .

[0027] The above scheme is adopted: by setting a sealing component 5 to seal the upper end of the shell 2, when the coal is screened, the coal dust generated during the screening process is sealed in the shell 2, so as to prevent a large amount of coal dust from floating out and affecting the working environment.

[0028] refer to Figure 1 and Figure 2The rotating member 52 includes a connecting groove 521, a rotating shaft 522 and a connecting member 523. There are two connecting grooves 521, which are respectively opened on the right side of the sealing plate 51 and the upper end of the right side of the shell 2. There are two rotating shafts 522, which are respectively arranged in the two connecting grooves 521. The front and rear ends of the rotating shaft 522 are respectively fixedly connected to the internal front surface and the internal rear surface of the connecting groove 521. The connecting member 523 is arranged in the connecting groove 521, and the upper and lower ends are respectively rotatably connected to the two rotating shafts 522.

[0029] The above solution is adopted: by providing the rotating member 52, the sealing plate 51 is fixed to the upper surface of the shell 2, and the sealing plate 51 can be turned over and opened when the multi-layer screening device is not in use.

[0030] refer to Figure 1 , Figure 3 and Figure 4 The dust removal mechanism 6 includes a filter assembly 61 and a dust suction assembly 62 . The filter assembly 61 is arranged on the upper surface of the sealing plate 51 , and the dust suction assembly 62 is arranged above the filter assembly 61 .

[0031] The above solution is adopted: by providing the dust removal mechanism 6, it has the function of sucking out the coal dust blocked by the sealing component 5 in the shell 2.

[0032] refer to Figure 1 , Figure 3 and Figure 4 The filter assembly 61 includes an opening 611 and a filter plate 612 . The opening 611 is opened on the upper surface of the sealing plate 51 and passes through to the interior of the housing 2 . The filter plate 612 is arranged inside the opening 611 and fixedly connected to the inner surface of the opening 611 .

[0033] The above solution is adopted: by setting the filter component 61, when the dust suction component 62 sucks out the coal dust in the shell 2, it is avoided that other larger debris in the coal is sucked into the dust extractor 621, thereby damaging the effect of the dust extractor 621.

[0034] refer to Figure 1 , Figure 3 and Figure 4 The dust collection assembly 62 includes a dust collector 621, a motor 622, a pipe 623 and a storage cylinder 624. The dust collector 621 is arranged directly above the opening 611, and the lower end is fixedly connected to the upper surface of the sealing plate 51. The motor 622 is arranged at the right end of the dust collector 621, and the storage cylinder 624 is placed on the left side of the frame 1. The dust collector 621 is communicated with the storage cylinder 624 through the pipe 623, and the two ends of the pipe 623 are movably connected to the storage cylinder 624 and the dust collector 621 respectively.

[0035] The above solution is adopted: by setting the dust suction component 62, the coal dust in the shell 2 can be sucked out and collected in a centralized manner.

[0036] refer to Figure 1 , Figure 3 and Figure 4 A material opening 7 is provided at the front end of the upper surface of the sealing plate 51 , and the material opening 7 passes through the interior of the shell 2 . A baffle plate 8 is provided directly above the material opening 7 , and the lower end of the baffle plate 8 is fixedly connected to the sealing plate 51 .

[0037] The above solution is adopted: by providing the material port 7 and the baffle 8, the coal can be poured into the shell 2.

[0038] refer to Figure 3 and Figure 5 A knocking assembly 9 is provided on the left side of the housing 2. The knocking assembly 9 includes a driving rod 91, a rubber rod 92, a knocking head 93 and a knocking box 94. The driving rod 91 is fixedly connected to the left surface of the housing 2. There are two rubber rods 92, which are fixedly connected to the left end of the driving rod 91. The knocking box 94 is fixedly connected to the pipe 623. The knocking head 93 is arranged in the knocking box 94 and is fixedly connected to the left end of the rubber rod 92.

[0039] The above scheme is adopted: by setting a knocking component 9, when the device operating shell 2 shakes, it will drive the driving rod 91 to shake, and the shaking of the driving rod 91 will swing the knocking head 93 through the rubber stick 92, and the knocking head 93 swings to knock the knocking box 94 connected to the pipe 623, and the knocking box 94 set on the pipe 623 is knocked to avoid the problem of blockage of the pipe 623.

[0040] The working principle of this utility model:

[0041] When the coal is screened, the sealing plate 51 blocks the coal dust generated during the screening into the shell 2. At this time, the motor 622 is started, and the motor 622 drives the dust extractor 621 to start, sucking the coal dust in the shell 2 out through the opening 611, and discharge it into the sealing cylinder placed on the left side of the frame 1 through the pipe 623. When the dust extractor 621 is sucking the coal dust, the filter plate 612 in the opening 611 blocks some larger debris in the coal to avoid damage to the dust removal of the dust extractor 621. When the sealing plate 51 needs to be opened, the pipe 623 and The vacuum cleaner 621 is disconnected and the sealing plate 51 is flipped over to open the sealing plate 51. When flipping, both ends of the connecting piece 523 rotate on the surface of the rotating shaft 522 in the connecting groove 521. When the equipment operating shell 2 shakes, the driving rod 91 will be driven to shake. The shaking of the driving rod 91 will swing the knocking head 93 through the rubber stick 92. The knocking head 93 swings to knock the knocking box 94 connected to the pipe 623. By knocking the knocking box 94 set on the pipe 623, the problem of pipe 623 being blocked can be avoided.

[0042] To sum up: the multi-layer screening device for coal production, through the arrangement of a frame 1, a shell 2, a vibrator 3, a sieve plate 4, a sealing assembly 5, a sealing plate 51, a rotating part 51, a connecting groove 521, a rotating shaft 522, a connecting part 523, a dust removal mechanism 6, a filter assembly 61, an opening 611, a filter plate 612, a dust suction assembly 62, a dust extractor 621, a motor 622, a pipeline 623, a storage cylinder 624, a material port 7 and a baffle 8, solves the problem that a large amount of coal dust will be emitted when the existing multi-layer screening device is screening coal and cannot be processed, thereby causing the coal dust to float out at will and affect the working environment.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-layer screening device for coal production, comprising a frame (1), a shell (2), a vibrator (3) and a sieve plate (4), wherein the shell (2) is arranged at the upper end of the frame (1), the vibrator (3) is arranged on the lower surface of the shell (2), the sieve plates (4) are in a plurality and arranged inside the shell (2), and the rear ends thereof extend out of the shell (2), characterized in that: A sealing assembly (5) is arranged above the shell (2), and a dust removal mechanism (6) is arranged above the sealing assembly (5).

2. A multi-layer screening device for coal production as claimed in claim 1, characterized in that: The sealing assembly (5) comprises a sealing plate (51) and a rotating member (52); the sealing plate (51) is placed on the upper surface of the housing (2); and there are two rotating members (52), which are respectively arranged on the right side of the sealing plate (51).

3. A multi-layer screening device for coal production as claimed in claim 2, characterized in that: The rotating member (52) includes a connecting groove (521), a rotating shaft (522) and a connecting member (523). The number of the connecting grooves (521) is two and they are respectively arranged on the right side of the sealing plate (51) and the upper end of the right side of the shell (2). The number of the rotating shafts (522) is two and they are respectively arranged in the two connecting grooves (521). The front and rear ends of the rotating shaft (522) are respectively fixedly connected to the internal front surface and the internal rear surface of the connecting groove (521). The connecting member (523) is arranged in the connecting groove (521), and the upper and lower ends are respectively rotatably connected to the two rotating shafts (522).

4. A multi-layer screening device for coal production as claimed in claim 2, characterized in that: The dust removal mechanism (6) comprises a filter assembly (61) and a dust suction assembly (62); the filter assembly (61) is arranged on the upper surface of the sealing plate (51), and the dust suction assembly (62) is arranged above the filter assembly (61).

5. A multi-layer screening device for coal production as claimed in claim 4, characterized in that: The filter assembly (61) comprises an opening (611) and a filter plate (612); the opening (611) is opened on the upper surface of the sealing plate (51) and passes through to the interior of the shell (2); the filter plate (612) is arranged inside the opening (611) and is fixedly connected to the inner surface of the opening (611).

6. A multi-layer screening device for coal production as claimed in claim 5, characterized in that: The dust collection assembly (62) comprises a dust extractor (621), a motor (622), a pipe (623) and a storage cylinder (624); the dust extractor (621) is arranged directly above the opening (611), and the lower end is fixedly connected to the upper surface of the sealing plate (51); the motor (622) is arranged at the right end of the dust extractor (621), and the storage cylinder (624) is placed on the left side of the frame (1); the dust extractor (621) is in communication with the storage cylinder (624) through the pipe (623), and the two ends of the pipe (623) are movably connected to the storage cylinder (624) and the dust extractor (621) respectively.

7. A multi-layer screening device for coal production as claimed in claim 2, characterized in that: A material opening (7) is provided at the front end of the upper surface of the sealing plate (51), and the material opening (7) passes through the interior of the shell (2). A baffle (8) is provided directly above the material opening (7), and the lower end of the baffle (8) is fixedly connected to the sealing plate (51).

8. A multi-layer screening device for coal production as claimed in claim 6, characterized in that: A knocking assembly (9) is arranged on the left side of the shell (2), and the knocking assembly (9) comprises a driving rod (91), a rubber rod (92), a knocking head (93) and a knocking box (94). The driving rod (91) is fixedly connected to the left surface of the shell (2), the rubber rods (92) are two in number and are fixedly connected to the left end of the driving rod (91), the knocking box (94) is fixedly connected to the pipe (623), and the knocking head (93) is arranged in the knocking box (94) and is fixedly connected to the left end of the rubber rod (92).

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