Molded particle screening equipment for densified fuel production

By designing a support frame and installation mechanism for the screening equipment, the problem of the inability to replace the screen was solved, enabling multi-specification screening and improving the ease of use and practicality of the equipment.

CN224072605UActive Publication Date: 2026-04-03FUJIAN LUOYUAN TIANYUAN NEW ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing screening equipment cannot change the screen according to the size of the formed pellets, which means it can only screen a single size of dense fuel pellets, thus limiting the scope of application of the screening equipment.

Method used

A screening device comprising a support frame, a reciprocating mechanism, and an installation mechanism was designed. The screen is moved by rollers and a drive motor, and the screen can be quickly disassembled and replaced by the cooperation of locking rod, screw head, and screw sleeve, ensuring stable installation of the screen.

Benefits of technology

It enables quick screen replacement and stable installation, expands the application range of screening equipment, and improves the convenience and practicality of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses formed particle screening equipment for densified fuel production, which comprises a support frame and a screen, a reciprocating mechanism for screening densified fuel formed particles is arranged at the top end of the support frame, and mounting mechanisms for quickly dismounting the screen are arranged on two sides of the inner wall of the reciprocating mechanism. And a screen is mounted on the inner side of the reciprocating mechanism through a plurality of groups of mounting mechanisms. Through the arrangement of the mounting mechanism, the screen mesh can be conveniently and quickly mounted and dismounted, so that a worker can conveniently replace or maintain the screen mesh, and the use convenience of equipment is improved. And meanwhile, through cooperation of a locking rod, a screw head and a screw sleeve, the screen mesh can be further fixed, the stability of the screen mesh in the using process is ensured, and the function that the screen mesh can be replaced according to the specification of formed particles is achieved.
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Description

Technical Field

[0001] This utility model relates to the technical field of densified fuel production equipment, specifically to a shaped particle screening device for densified fuel production. Background Technology

[0002] Biomass fuel is a renewable energy source with advantages such as being environmentally friendly, renewable, and low-carbon. In recent years, it has been widely used in the energy sector. The production process of biomass fuel first requires the collection of various biomass raw materials, such as crop straw, forestry waste, and specific energy crops. These raw materials undergo pretreatment, such as cutting and grinding, to adapt to the subsequent conversion process. In the subsequent conversion process, the processed pellets need to be screened, so screening equipment is required to screen the densified fuel pellets.

[0003] In the production process of densified fuel, existing screening equipment cannot change the screen according to the size of the densified fuel pellets. This results in the screening equipment being able to screen only a single size of densified fuel pellets, which limits the screening specifications and restricts the scope of application of the screening equipment. Utility Model Content

[0004] The purpose of this invention is to provide a screening device for shaped pellets used in the production of densified fuel, in order to solve the problem mentioned in the background art that the device cannot change the screen according to the specifications of the shaped pellets, resulting in the screening device being limited to screening only single-specification densified fuel shaped pellets.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a screening device for shaped pellets in the production of densified fuel, comprising a support frame and a screen, wherein the top of the support frame is provided with a reciprocating mechanism for screening shaped pellets of densified fuel, and both sides of the inner wall of the reciprocating mechanism are provided with installation mechanisms for quick assembly and disassembly of the screen, and the screen is installed on the inner side of the reciprocating mechanism through several sets of installation mechanisms.

[0006] As a further preferred embodiment of this technical solution, an mounting bracket is fixedly installed on the inner side of the support frame, and guide grooves are provided on both sides of the top of the support frame.

[0007] As a further preferred embodiment of this technical solution, the reciprocating mechanism includes rollers and a drive motor. The rollers are configured in several groups, and the bottom ends of the several groups of rollers are all rolled and mounted on the inner sides of two groups of guide grooves. The inner sides of the several groups of rollers are fixedly connected to a mounting frame.

[0008] As a further preferred embodiment of this technical solution, the bottom end of the drive motor is mounted on one side of the outer wall of the support frame via a mounting plate. The output end of the drive motor is fixedly fitted with a rotating wheel via a shaft. A connecting rod is hinged to the upper side of the rotating wheel away from the drive motor. The end of the connecting rod away from the rotating wheel is connected to one side of the outer wall of the mounting frame via a hinge. A guide plate is connected through the opening at the end of the mounting frame away from the connecting rod.

[0009] As a further preferred embodiment of this technical solution, the installation mechanism includes overlapping plates, which are configured in several groups. One end of each group of overlapping plates is fixedly connected to the inner wall of the installation frame. Both sides of the outer wall of the screen are inserted and installed on the inner side of the group of overlapping plates. Locking rods are inserted and installed in the interior of the group of overlapping plates and the interior of both sides of the screen through openings.

[0010] As a further preferred embodiment of this technical solution, the bottom ends of several sets of locking rods are fixedly connected with screw heads, and the surfaces of several sets of screw heads are threaded with screw sleeves.

[0011] As a further preferred embodiment of this technical solution, a collection frame is slidably mounted on the top of the mounting frame, and the top of the collection frame is correspondingly positioned with the bottom of the screen.

[0012] This utility model provides a pellet screening device for densified fuel production, which has the following features:

[0013] Beneficial effects:

[0014] This invention, through its specially designed installation mechanism, facilitates the quick installation and disassembly of the screen, enabling workers to easily replace or repair it and improving the ease of use of the equipment. Simultaneously, the locking rod, screw head, and screw sleeve work together to further secure the screen, ensuring its stability during use. This allows for screen replacement based on the specifications of the formed pellets, solving the problem of limited screening capabilities caused by the screening equipment's limitation to only screening single-size dense fuel pellets, thus expanding the scope of application of the screening equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the support frame structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the reciprocating mechanism structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the installation mechanism of this utility model.

[0019] In the diagram: 1. Support frame; 101. Mounting frame; 102. Guide groove; 2. Reciprocating mechanism; 201. Roller; 202. Mounting frame; 203. Drive motor; 204. Rotary wheel; 205. Connecting rod; 206. Guide plate; 3. Mounting mechanism; 301. Overlap plate; 302. Locking rod; 303. Screw head; 304. Screw sleeve; 4. Screen; 5. Collection frame. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figures 1 to 4 As shown in this embodiment, a pellet screening device for densified fuel production includes a support frame 1 and a screen 4. A mounting frame 101 is fixedly installed on the inner side of the support frame 1. Guide grooves 102 are provided on both sides of the top of the support frame 1. A reciprocating mechanism 2 for screening densified fuel pellets is provided at the top of the support frame 1. The reciprocating mechanism 2 includes rollers 201 and a drive motor 203. Several groups of rollers 201 are configured, with their bottom ends rollingly mounted on the inner sides of the two sets of guide grooves 102. Mounting frames 202 are fixedly connected to the inner sides of the several groups of rollers 201. The bottom end of the drive motor 203 is mounted on one side of the outer wall of the support frame 1 via a mounting plate. A rotating wheel 204 is fixedly mounted on the output end of the drive motor 203 via a shaft. A connecting rod 205 is hinged to the upper side of the rotating wheel 204 away from the drive motor 203. A connecting rod 205 is hinged to the upper side of the end of the rotating wheel 204 away from the rotating wheel 204. The end is connected to one side of the outer wall of the mounting frame 202 via a hinge. The end of the mounting frame 202 away from the connecting rod 205 is connected to a guide plate 206 through an opening. The inner side of the reciprocating mechanism 2 is equipped with a screen 4 via several sets of mounting mechanisms 3. By feeding the densified fuel pellets to the top of the screen 4, the drive motor 203 starts to start the rotating wheel 204. The rotation of the rotating wheel 204 drives the reciprocating motion of the connecting rod 205, which in turn causes the rollers 201 on both sides of the mounting frame 202 to reciprocate along the guide groove 102 on the support frame 1. The reciprocating mounting frame 202 drives the densified fuel pellets on the screen 4 to be screened. Larger particles cannot pass through the mesh of the screen 4 and are left above the screen 4, while smaller particles fall into the collection frame 5 below through the mesh, thus realizing the function of screening the densified fuel pellets.

[0022] like Figure 1 , Figure 3 and Figure 4As shown, both sides of the inner wall of the reciprocating mechanism 2 are provided with mounting mechanisms 3 for quick assembly and disassembly of the screen 4. The mounting mechanism 3 includes overlapping plates 301, which are configured in several groups. One end of each group of overlapping plates 301 is fixedly connected to the inner wall of the mounting frame 202. Both sides of the outer wall of the screen 4 are inserted and installed inside the groups of overlapping plates 301. Locking rods 302 are inserted into the interior of each group of overlapping plates 301 and the interior of both sides of the screen 4 through openings. Screw heads 303 are fixedly connected to the bottom of each group of locking rods 302. Screw sleeves 304 are threaded onto the surface of each group of screw heads 303. When the screen 4 needs to be replaced, the workers manually unscrew the screw sleeves 304 from the surface of the screw heads 303 to release the locking between the screw sleeves 304 and the screw heads 303, thereby releasing the screen 4. The locking rod 302 is locked to several sets of overlapping plates 301. Then, the locking rods 302 and screw heads 303 are pulled out from the inside of the overlapping plates 301 and the inside of both sides of the screen 4 to release the locking of the overlapping plates 301 and the screen 4. This makes it easy to remove the screen 4 from the inside of the mounting frame 202. Then, another set of screens 4 that meet the screening specifications is re-overlapped to the top of the overlapping plates 301. The locking rods 302 and screw heads 303 are passed through the inside of both sides of the screen 4 and the inside of the overlapping plates 301. Then, the screw sleeves 304 are re-fitted onto the surface of the screw heads 303. By screwing the screw sleeves 304 and the screw heads 303, the locking rods 302 and the overlapping plates 301 are locked, and the screen 4 is fixedly installed in the mounting frame 202, which facilitates the quick replacement of the screen 4.

[0023] like Figure 1 and Figure 2 As shown, a collection frame 5 is slidably installed on the top of the mounting frame 101. The top of the collection frame 5 is correspondingly set with the bottom of the screen 4. When the screen 4 screens the particles, the particles that meet the screening specifications will fall into the inside of the collection frame 5 through the screen 4. Since the top of the collection frame 5 is correspondingly set with the bottom of the screen 4, it can be ensured that the screened particles can fall into the collection frame 5, avoiding the particles from scattering to other parts of the equipment, causing particle waste or equipment contamination.

[0024] This utility model provides a screening device for shaped pellets used in the production of densified fuel. The specific working principle is as follows: First, the shaped pellets of densified fuel are fed to the top of the screen 4. Then, by starting the drive motor 203, the rotating wheel 204 starts to rotate. The rotation of the rotating wheel 204 drives the reciprocating motion of the connecting rod 205, which in turn causes the rollers 201 on both sides of the mounting frame 202 to reciprocate along the guide groove 102 on the support frame 1. The reciprocating mounting frame 202 drives the shaped pellets of densified fuel on the screen 4 to be screened. Larger particles are left above the screen 4 because they cannot pass through the mesh of the screen 4, while smaller particles fall into the collection frame 5 below through the mesh, thus realizing the function of screening the shaped pellets of densified fuel.

[0025] When the screen 4 needs to be replaced, the operator manually unscrews several sets of threaded sleeves 304 from the surface of several sets of threaded heads 303 to release the locking between the threaded sleeves 304 and the threaded heads 303, thereby releasing the locking between the locking rods 302 and the overlapping plates 301. Then, the locking rods 302 and the threaded heads 303 are pulled out from inside the overlapping plates 301 and the inside of both sides of the screen 4 to release the locking between the overlapping plates 301 and the screen 4, thus facilitating the removal of the screen 4 from the inside of the mounting frame 202. Afterwards, another set of screens 4 that meet the screening specifications are re-attached to the top of several sets of overlapping plates 301. Several sets of locking rods 302 and several sets of screw heads 303 are passed through the inside of both sides of the screen 4 and the inside of the overlapping plates 301. Then, several sets of screw sleeves 304 are re-fitted onto the surface of the screw heads 303. By screwing the screw sleeves 304 and the screw heads 303, the locking rods 302 and the overlapping plates 301 are locked, and the screen 4 and the mounting frame 202 are fixedly installed. This facilitates the quick replacement of the screen 4 and improves the practicality and convenience of the equipment.

[0026] 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 these 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 compacted fuel production shaped particle screening apparatus comprising a support frame (1) and a screen (4), characterised in that: The top end of the support frame (1) is provided with a reciprocating mechanism (2) for screening densified fuel formed particles, the inner wall of the reciprocating mechanism (2) is provided with mounting mechanisms (3) for quickly disassembling and assembling the screen (4) on both sides, and the inner side of the reciprocating mechanism (2) is provided with screen (4) through a plurality of mounting mechanisms (3).

2. A compacted fuel production shaped particle screening apparatus according to claim 1, characterized in that: The inner side of the support frame (1) is fixedly provided with a mounting frame (101), and the top end of the support frame (1) is provided with guide grooves (102) on both sides.

3. A compacted fuel production forming pellet screening apparatus according to claim 1, wherein: The reciprocating mechanism (2) comprises a roller (201) and a driving motor (203), the roller (201) is provided in several groups, the bottom end of the roller (201) is rollingly installed on the inner side of the two guide grooves (102), and the inner side of the roller (201) is fixedly connected with a mounting frame (202).

4. A compacted fuel production shaped particle screening apparatus according to claim 3, wherein: The bottom end of the driving motor (203) is installed on one side of the outer wall of the support frame (1) through a mounting plate, the output end of the driving motor (203) is fixedly sleeved with a rotating wheel (204) through a shaft, the upper side of the end of the rotating wheel (204) away from the driving motor (203) is hingedly connected with a connecting rod (205), the end of the connecting rod (205) away from the rotating wheel (204) is connected with one side of the outer wall of the mounting frame (202) through a hinge, and the end of the mounting frame (202) away from the connecting rod (205) is connected with a guide plate (206) through a discharge opening.

5. A compacted fuel production forming pellet screening apparatus according to claim 1, wherein: The mounting mechanism (3) comprises a lap plate (301), the lap plate (301) is provided in several groups, one end of the lap plate (301) is fixedly connected with the inner wall of the mounting frame (202), the screen (4) is insertedly installed on the inner side of the lap plate (301) on both sides, and the inner side of the lap plate (301) is provided with a locking rod (302) through a plug hole.

6. A shaped particle screening apparatus for producing a densified fuel according to claim 5, wherein: The bottom end of the locking rod (302) is fixedly connected with a screw head (303), and the surface of the screw head (303) is threadedly sleeved with a screw sleeve (304).

7. A shaped particle screening apparatus for producing a densified fuel according to claim 2, wherein: The top end of the mounting frame (101) is slidingly provided with a collecting frame (5), and the top end of the collecting frame (5) is correspondingly provided with the bottom end of the screen (4).