Raw coal screening and filtration device

Abstract

This utility model relates to the field of raw coal screening technology and discloses a raw coal screening and filtering device, including a filtering device and a bin. A metal block is fixedly connected to the top of the bin. The filtering device is installed on the top of the bin and includes a metal ring, inverted teeth, a limiting component, and a plug-in plate. The metal ring is installed on the top of the limiting component, the plug-in plate is fixedly connected to the inner wall surface of the metal ring, and the inverted teeth are fixedly connected to the top of the plug-in plate. This raw coal screening and filtering device, by setting up a metal ring, inverted teeth, a metal frame, and a grate, allows the inverted teeth and grate to filter the poured raw coal. The inverted teeth can scrape away impurities from the poured raw coal, effectively preventing impurities from entering the raw coal bin. A nut rotates on the surface of a threaded rod, and a helical spring pushes the metal ring upward, causing the metal ring to detach from the metal frame, facilitating disassembly and replacement of the metal ring.

Description

Technical Field

[0001] This utility model relates to the field of raw coal screening technology, specifically to a raw coal screening and filtration device. Background Technology

[0002] The main function of the raw coal bin grate is to screen and filter raw coal, preventing excessively large impurities or foreign objects from entering subsequent processing stages, thereby ensuring the normal operation of the equipment and the continuity of production.

[0003] The prior art discloses a coal impurity removal system with application number CN209156421U, belonging to the field of coal screening technology. The upper end of the screening cylinder is connected to a feed hopper, and a conveyor belt is located below the screening cylinder. Inside the screening cylinder, from top to bottom, are arranged a rotating drum, a screen grate, and an impurity removal device. There are two rotating drums arranged opposite each other. A magnetic device is located on the outer side of the rotating drums. A dust removal device is located at the front end of the conveyor belt. A turning device is located above the middle and rear of the conveyor belt. A magnetic device is also located near the upper rear end of the conveyor belt, and a discharge cylinder is located near the lower rear end of the conveyor belt. A dust removal device is located on one side of the upper end of the discharge cylinder. This utility model has a simple structure and can effectively remove impurities such as iron, sawdust, and cotton from coal, providing a reliable guarantee for the normal operation of subsequent equipment and systems, improving the quality of coal products. The dust removal facilities meet environmental protection requirements, and the magnetic device is a permanent magnet separator, meeting energy conservation and consumption reduction requirements.

[0004] The upper end of the screening cylinder is connected to the feed hopper. The feed hopper is not equipped with a scraping device. The raw materials and the garbage and debris carried in the raw coal bunker will clog the grate. The raw materials and the garbage and debris carried in the raw coal bunker cannot be effectively separated. The garbage and debris will enter the raw coal bunker, which cannot guarantee the safe operation of the coal feeder. Utility Model Content

[0005] The purpose of this invention is to provide a raw coal screening and filtration device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a raw coal screening and filtering device, comprising a filtering device and a bin, wherein a metal block is fixedly connected to the top of the bin, and the filtering device is installed on the top of the bin.

[0007] The filter device includes a metal ring, inverted teeth, a limiting component, and a plug plate. The metal ring is mounted on top of the limiting component, the plug plate is fixedly connected to the inner wall surface of the metal ring, and the inverted teeth are fixedly connected to the top of the plug plate.

[0008] Preferably, the limiting assembly includes a metal frame, a first threaded rod, a helical spring, a second threaded rod, a grate, a connecting block, and a locking nut. The connecting block is fixedly connected to the surface of the metal frame, the second threaded rod is fixedly connected to the bottom of the connecting block, the locking nut is threadedly connected to the surface of the second threaded rod, the first threaded rod is fixedly connected to the outer part of the connecting block, the helical spring is installed on the outer part of the connecting block, and the grate is fixedly connected to the bottom of the inner wall of the metal frame.

[0009] Preferably, the connecting block is movably connected to the top of the metal block, and the connecting block is slidably connected to the top surface of the chamber. The connecting block slides on the top surface of the chamber, so that the connecting block and the top of the metal block are connected, thereby enabling the position of the metal frame to be determined.

[0010] Preferably, the metal frame is inserted into the top of the bin body, the grate is located at the top of the bin body, the metal frame drives the grate to move downwards, and the metal frame is inserted into the top of the bin body, thereby enabling the position of the grate to be determined.

[0011] Preferably, the metal ring is connected to the top of the helical spring and is movably connected to the surface of the threaded rod. Rotating the nut causes the nut to rotate on the surface of the threaded rod, which compresses the helical spring between the connecting block and the metal ring, making the disassembly of the metal ring more convenient.

[0012] Preferably, the locking nut is movably connected to the bottom of the metal block, the metal block is slidably connected to the surface of the threaded rod, the locking nut rotates on the surface of the threaded rod, the connection between the connecting block and the metal block is loosened, making it easier for the metal frame and the grate to detach from the bin body.

[0013] Preferably, the plug-in plate is movably connected to the surface of the grate, the plug-in plate is slidably connected to the inner wall surface of the metal frame, and the metal ring is movably connected to the surface of the metal frame. The metal ring can drive the plug-in plate to move downward, so that the plug-in plate and the surface of the grate are connected, thereby determining the position of the metal ring and the grate, and thus enabling the metal ring, the plug-in plate and the back teeth to be disassembled and replaced.

[0014] Preferably, the metal ring is movably connected to the top of the connecting block. When the metal ring moves downward, the metal ring and the connecting block are connected, thereby determining the position of the metal ring, the countertooth, and the plug plate, which facilitates the replacement of the metal ring, the countertooth, and the plug plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This raw coal screening and filtering device is equipped with a metal ring, inverted teeth, a metal frame, and a grate. The inverted teeth and grate can filter the dumped raw coal, and the inverted teeth can scrape off the impurities in the dumped raw coal, which can effectively prevent impurities from entering the raw coal bunker and effectively ensure the safe operation of the coal feeder.

[0017] 2. This raw coal screening and filtering device is equipped with a threaded rod, a locking nut, and a metal block. The locking nut rotates on the surface of the threaded rod, and the metal frame and the bin are fixed by threads, which facilitates the disassembly and replacement of the metal frame and the grate. Different types of grates can be used according to the specifications of the raw coal, which can increase the service life of the device.

[0018] 3. This raw coal screening and filtering device is equipped with a helical spring, a threaded rod, and a metal ring. When the nut rotates on the surface of the threaded rod, it disengages from the threaded rod, and the compressed helical spring begins to rebound. The helical spring can push the metal ring upward, causing the metal ring to detach from the metal frame, making it easy to disassemble and replace the metal ring. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the entire utility model;

[0020] Figure 2 This utility model Figure 1 A magnified view of the structure at point A in the diagram;

[0021] Figure 3 This is a three-dimensional schematic diagram of the container body and metal block of this utility model;

[0022] Figure 4 This is a three-dimensional schematic diagram of the limiting component of this utility model;

[0023] Figure 5 This is a three-dimensional schematic diagram of the metal ring, inverted teeth, and plug plate of this utility model.

[0024] In the diagram: 1. Filter device; 11. Metal ring; 12. Back teeth; 13. Limiting assembly; 131. Metal frame; 132. Threaded rod one; 133. Helical spring; 134. Threaded rod two; 135. Grate; 136. Connecting block; 137. Locking nut; 14. Insert plate; 2. Chamber body; 3. Metal block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 The present invention provides the following technical solution:

[0027] The raw coal screening and filtration device includes a filter device 1 and a bin 2. A metal block 3 is fixedly connected to the top of the bin 2, and the filter device 1 is installed on the top of the bin 2.

[0028] The filter device 1 includes a metal ring 11, a toothed bar 12, a limiting component 13, and a plug plate 14. The metal ring 11 is installed on the top of the limiting component 13, the plug plate 14 is fixedly connected to the inner wall surface of the metal ring 11, and the toothed bar 12 is fixedly connected to the top of the plug plate 14.

[0029] The limiting assembly 13 includes a metal frame 131, a threaded rod 132, a helical spring 133, a threaded rod 134, a grate 135, a connecting block 136, and a locking nut 137. The connecting block 136 is fixedly connected to the surface of the metal frame 131. The metal frame 131 is inserted into the top of the bin 2. The grate 135 is located at the top of the bin 2. The metal frame 131 drives the grate 135 to move downwards. The metal frame 131 is inserted into the top of the bin 2, thereby determining the position of the grate 135. The threaded rod 134 is fixedly connected to the bottom of the connecting block 136. The plug-in plate 14 is movably connected to the surface of the grate 135. 4. A metal ring 11 is slidably connected to the inner wall surface of the metal frame 131. The metal ring 11 is movably connected to the surface of the metal frame 131. The metal ring 11 can drive the plug plate 14 to move downward, so that the plug plate 14 and the surface of the grate 135 are connected, thereby determining the position of the metal ring 11 and the grate 135, and thus allowing the metal ring 11, the plug plate 14 and the countertooth 12 to be disassembled and replaced. The locking nut 137 is threadedly connected to the surface of the threaded rod 134. The locking nut 137 is movably connected to the bottom of the metal block 3. The metal block 3 is slidably connected to the surface of the threaded rod 134. The locking nut 137 is slidably connected to the bottom of the metal block 3. The surface of 4 rotates, loosening the connection between connecting block 136 and metal block 3, allowing metal frame 131 and grate 135 to detach from bin 2. Threaded rod 132 is fixedly connected to the outward part of connecting block 136. Connecting block 136 is movably connected to the top of metal block 3. Connecting block 136 is slidably connected to the top surface of bin 2. Connecting block 136 slides on the top surface of bin 2, connecting the top of metal block 3 with connecting block 136, thus determining the position of metal frame 131. Helical spring 133 is installed on the outward part of connecting block 136. Metal ring 11 is movably connected to the top of connecting block 136. When body 11 moves downward, metal ring 11 and connecting block 136 are connected, thereby determining the position of metal ring 11, reverse tooth 12 and plug plate 14, making it convenient to replace metal ring 11, reverse tooth 12 and plug plate 14. Metal ring 11 is connected to the top of helical spring 133 and is movably connected to the surface of threaded rod 132. Rotating nut causes nut to rotate on the surface of threaded rod 132, so that helical spring 133 can be compressed between connecting block 136 and metal ring 11, making disassembly of metal ring 11 more convenient. Grate 135 is fixedly connected to the bottom of the inner wall of metal frame 131.

[0030] When in use, raw coal is poured into the bin 2. The raw coal passes through the metal ring 11, metal frame 131, grate 135 and inverted teeth 12, which can filter the raw coal. During the falling process, all the impurities in the coal are caught on the inverted teeth 12. The raw coal enters the bin 2. After the coal is fed, the impurities on the inverted teeth 12 are cleaned in time, which can effectively prevent impurities from entering the bin 2 and ensure the safe operation of the coal feeder.

[0031] When the nut is turned, it disengages from the threaded rod 132, and the connection between the metal ring 11, the connecting block 136, and the metal frame 131 becomes loose. At this time, the compressed helical spring 133 begins to rebound, and the helical spring 133 can push the metal ring 11 to move upward.

[0032] The metal ring 11 moves upward along the surface of the threaded rod 132. The metal ring 11 can drive the plug plate 14 and the reverse tooth 12 to move upward, making it convenient to disassemble and replace the metal ring 11, plug plate 14 and reverse tooth 12. Different types of reverse teeth 12 and metal ring 11 can be used according to the specifications of the raw coal.

[0033] Rotate the locking nut 137 to disengage it from the threaded rod 134, loosening the connection between the metal frame 131 and the chamber 2. Pull the metal frame 131 upward, and the metal frame 131 moves upward along the inner wall surface of the chamber 2, causing the metal frame 131 to detach from the chamber 2.

[0034] When the metal frame 131 moves upward, it drives the threaded rod 134 to move upward. The threaded rod 134 moves upward on the inner wall surface of the metal block 3, thereby enabling the metal frame 131 to be disassembled and replaced, and allowing the use of metal frames 131 and grates 135 of different specifications.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A raw coal screening and filtering device, comprising a filtering device (1) and a bin (2), characterized in that: A metal block (3) is fixedly connected to the top of the chamber (2), and the filter device (1) is installed on the top of the chamber (2); The filter device (1) includes a metal ring (11), a toothed bar (12), a limiting component (13), and a plug plate (14). The metal ring (11) is installed on the top of the limiting component (13), the plug plate (14) is fixedly connected to the inner wall surface of the metal ring (11), and the toothed bar (12) is fixedly connected to the top of the plug plate (14).

2. The raw coal screening and filtering device according to claim 1, characterized in that: The limiting component (13) includes a metal frame (131), a threaded rod one (132), a helical spring (133), a threaded rod two (134), a grate (135), a connecting block (136), and a locking nut (137). The connecting block (136) is fixedly connected to the surface of the metal frame (131). The threaded rod two (134) is fixedly connected to the bottom of the connecting block (136). The locking nut (137) is threadedly connected to the surface of the threaded rod two (134). The threaded rod one (132) is fixedly connected to the outer part of the connecting block (136). The helical spring (133) is installed on the outer part of the connecting block (136). The grate (135) is fixedly connected to the bottom of the inner wall of the metal frame (131).

3. The raw coal screening and filtering device according to claim 2, characterized in that: The connecting block (136) is movably connected to the top of the metal block (3), and the connecting block (136) is slidably connected to the top surface of the chamber (2).

4. The raw coal screening and filtering device according to claim 3, characterized in that: The metal frame (131) is inserted into the top of the hopper (2), and the grate (135) is located on the top of the hopper (2).

5. The raw coal screening and filtering device according to claim 4, characterized in that: The metal ring (11) is connected to the top of the helical spring (133), and the metal ring (11) is movably connected to the surface of the threaded rod (132).

6. The raw coal screening and filtering device according to claim 5, characterized in that: The locking nut (137) is movably connected to the bottom of the metal block (3), and the metal block (3) is slidably connected to the surface of the threaded rod (134).

7. The raw coal screening and filtering device according to claim 6, characterized in that: The plug plate (14) is movably connected to the surface of the grate (135), the plug plate (14) is slidably connected to the inner wall surface of the metal frame (131), and the metal ring (11) is movably connected to the surface of the metal frame (131).

8. The raw coal screening and filtering device according to claim 7, characterized in that: The metal ring (11) is movably connected to the top of the connecting block (136).

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