Powder screening device after biomass fuel granulation

Abstract

The powder screening device after biomass fuel granulation comprises a base structure and a support structure matched with the base structure, multiple sets of ball structures matched with the base structure are arranged at the bottom of the support structure, a swing structure matched with the support structure is arranged on the base structure, and multiple sets of positioning sliding rods matched with the base structure are symmetrically arranged on the support structure. A limiting plate is arranged on the positioning sliding rod, the positioning sliding rod is sleeved with an elastic piece, the two ends of the elastic piece are connected with the base structure and the limiting plate correspondingly, conveying roller structures matched with each other are symmetrically arranged on the support structure, screen conveying belts matched with the conveying roller structures are arranged on the conveying roller structures, and the conveying roller structures are connected with the output end of a first motor; the first motor is connected with the support structure through the first fixing base. By the adoption of the structure, longitudinal conveying is matched with transverse swinging, materials can be turned over without too large force, and the machining efficiency is remarkably improved in cooperation with screening; conveying connection is matched, arrangement of conveying equipment in an automatic production line is reduced, the structure is simple, and maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass fuel processing equipment, in particular to a biomass fuel powder screening device after granulation. Background Art

[0002] As a renewable and clean energy, the development and utilization of biomass fuel is of great significance for alleviating the energy crisis and reducing environmental pollution. In the production process of biomass fuel, screening of powder after granulation is one of the key steps, which aims to remove over-fine or unqualified particles and ensure the quality and combustion performance of the final product. However, traditional forms such as vibrating screens, drum screens, and flat rotary screens are commonly used in the prior art. During the screening process, the granular materials after granulation are prone to violent collisions with the large shaking of the screening, which increases the proportion of collision and breakage of granular materials, and the defective rate is high, affecting product quality. At the same time, the equipment structure is relatively complex, not easy for daily maintenance, and has many disadvantages. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a biomass fuel powder screening device after granulation. The longitudinal conveying is coordinated with the lateral swing, and the material can be rolled without too much force, and the screening is significantly improved in processing efficiency; the conveying connection is coordinated, and the setting of conveying equipment in the automated production line is reduced, the structure is simple, and maintenance is convenient; the overall structure of the device is reasonable, the operation is convenient and stable, and the practicability is strong.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a device for screening powder after granulation of biomass fuel, including a base structure and a bracket structure matched with it, the bottom of the bracket structure is provided with multiple groups of ball structures matched with the base structure, the base structure is provided with a swing structure matched with the bracket structure, the bracket structure is symmetrically provided with multiple groups of positioning slide bars matched with the base structure, the positioning slide bars are provided with limit plates, the positioning slide bars are sleeved with elastic parts, the two ends of the elastic parts are respectively connected to the base structure and the limit plates, the bracket structure is symmetrically provided with conveying roller structures matched with each other, the conveying roller structure is provided with a screen conveyor belt matched with it, the conveying roller structure is connected to the output end of the first motor, and the first motor is connected to the bracket structure through the first fixed seat.

[0005] In a preferred embodiment, the swing structure includes a positioning shaft arranged on the support structure, the positioning shaft is hinged to one end of the swing arm, the other end of the swing arm is hinged to an eccentric shaft arranged on a linkage wheel, the linkage wheel is connected to the base structure through a mounting seat, the linkage wheel is transmitted through a transmission belt and a transmission wheel, the transmission wheel is connected to the output end of the second motor, and the second motor is connected to the base structure through a second fixed seat.

[0006] In a preferred solution, a material gathering section is provided in the middle of the conveying roller structure.

[0007] In a preferred solution, side baffles cooperating with the screen conveyor belt are symmetrically provided at both ends of the conveyor roller structure.

[0008] In a preferred solution, the screen conveyor belt is provided with a material gathering slope matched with the material gathering section, and a screen mesh belt is provided in the middle of the material gathering slope.

[0009] In a preferred solution, support arms are symmetrically arranged on the base structure, and a guide slag discharge trough cooperating with the screening mesh belt for screening materials is provided on the support arm.

[0010] The biomass fuel granulation powder screening device provided by the utility model has the following beneficial effects by adopting the above structure:

[0011] (1) Longitudinal conveying combined with lateral swinging can make the material roll without too much force, and combined with screening to significantly improve processing efficiency;

[0012] (2) The transportation connection and coordination can reduce the setting of transportation equipment in the automated production line, with a simple structure and easy maintenance;

[0013] (3) The overall structure of the device is reasonable, the operation is convenient and stable, and it is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 3 This is a schematic diagram of the conveying roller structure of the utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the screen conveyor belt of the utility model.

[0019] Figure 5 It is a schematic diagram of the connection and coordination of the swing structure of the utility model.

[0020] Figure 6 This is a schematic diagram of the support structure of the utility model.

[0021] In the figure: base structure 1, bracket structure 2, positioning slide bar 3, limit plate 4, elastic member 5, conveying roller structure 6, screen conveyor belt 7, first motor 8, first fixed seat 9, support arm 10, guide slag unloading trough 11, positioning shaft 12, swing arm 13, linkage wheel 14, eccentric shaft 15, mounting seat 16, transmission belt 17, transmission wheel 18, second motor 19, second fixed seat 20, ball structure 21, material gathering section 22, side baffle 23, material gathering slope 24, screen mesh belt 25. DETAILED DESCRIPTION

[0022] like Figure 1-6 In the invention, a device for screening powder after granulation of biomass fuel comprises a base structure 1 and a support structure 2 matched therewith, the bottom of the support structure 2 is provided with a plurality of ball structures 21 matched with the base structure 1, the base structure 1 is provided with a swing structure matched with the support structure 2, the support structure 2 is symmetrically provided with a plurality of positioning slide bars 3 matched with the base structure 1, the positioning slide bars 3 are provided with a limit plate 4, the positioning slide bars 3 are sleeved with an elastic member 5, the two ends of the elastic member 5 are respectively connected with the base structure 1 and the limit plate 4, the support structure 2 is symmetrically provided with conveying roller structures 6 matched with each other, the conveying roller structure 6 is provided with a screen conveyor belt 7 matched therewith, the conveying roller structure 6 is connected with the output end of the first motor 8, and the first motor 8 is connected with the support structure 2 through the first fixed seat 9.

[0023] In the preferred solution, the swing structure includes a positioning shaft 12 arranged on the support structure 2, the positioning shaft 12 is hinged to one end of the swing arm 13, the other end of the swing arm 13 is hinged to an eccentric shaft 15 arranged on the linkage wheel 14, the linkage wheel 14 is connected to the base structure 1 through a mounting seat 16, the linkage wheel 14 cooperates with the transmission wheel 18 through a transmission belt 17, the transmission wheel 18 is connected to the output end of the second motor 19, and the second motor 19 is connected to the base structure 1 through a second fixing seat 20. The swing power is transmitted smoothly, the swing speed is controlled by the rotation speed, and it is flexible and stable.

[0024] In a preferred solution, a material gathering section 22 is provided in the middle of the conveying roller structure 6. The material gathering section 22 is used for conveying to avoid the material from falling during the swing screening process.

[0025] In the preferred solution, the two ends of the conveying roller structure 6 are symmetrically provided with side baffles 23 cooperating with the screen conveyor belt 7. The screen conveyor belt 7 is limited to avoid displacement of the screen conveyor belt 7 during the swing screening process.

[0026] In the preferred solution, the screen conveyor belt 7 is provided with a material gathering slope 24 cooperating with the material gathering section 22, and a screening mesh belt 25 is provided in the middle of the material gathering slope 24. The material gathering is screened to ensure that the material does not fall during the swinging process.

[0027] In the preferred solution, the base structure 1 is symmetrically provided with support arms 10, and the support arms 10 are provided with guide slag discharge troughs 11 that cooperate with the screening mesh belt 25 to screen the material. Guided unloading is convenient for cleaning and maintenance.

[0028] The method of using the utility model is as follows: the device is directly used as a connecting conveying device after granulation. After the granular material falls onto the screen conveyor belt 7, it is driven and conveyed by the first motor 8. At the same time, the second motor 19 works to transmit the swinging power. The ball structure 21 on the bracket structure 2 can ensure its smooth reciprocating motion on the base structure 1. At the same time, the elastic members 5 at both ends cooperate with the positioning slide bar 3 to utilize damping reset and avoid longitudinal displacement of the bracket structure 2. The granular material can be continuously turned over on the screen conveyor belt 7 during the conveying process, which can not only quickly screen the slag and avoid material breakage when the collision intensity is too large, but also assist in cooling the material, achieving multiple goals at one stroke.

[0029] The beneficial effects of the utility model are as follows: longitudinal conveying is coordinated with lateral swinging, and the material can be tumbled without too much force, and screening is combined to significantly improve the processing efficiency; the conveying connection is coordinated, reducing the setting of conveying equipment in the automated production line, the structure is simple, and maintenance is convenient; the overall structure of the device is reasonable, the operation is convenient and stable, and the practicability is strong.

Claims

1. A biomass fuel granulation powder screening device, comprising a base structure (1) and a support structure (2) matched therewith, characterized in that: The bottom of the support structure (2) is provided with a plurality of groups of ball structures (21) cooperating with the base structure (1), the base structure (1) is provided with a swing structure cooperating with the support structure (2), the support structure (2) is symmetrically provided with a plurality of groups of positioning slide bars (3) cooperating with the base structure (1), the positioning slide bars (3) are provided with a limit plate (4), an elastic member (5) is sleeved on the positioning slide bars (3), the two ends of the elastic member (5) are respectively connected to the base structure (1) and the limit plate (4), the support structure (2) is symmetrically provided with conveying roller structures (6) cooperating with each other, the conveying roller structures (6) are provided with a screen conveyor belt (7) cooperating with each other, the conveying roller structures (6) are connected to the output end of the first motor (8), and the first motor (8) is connected to the support structure (2) through a first fixed seat (9).

2. The device for screening powder after biomass fuel granulation according to claim 1, characterized in that: The swing structure comprises a positioning shaft (12) arranged on the support structure (2); the positioning shaft (12) is hinged to one end of a swing arm (13); the other end of the swing arm (13) is hinged to an eccentric shaft (15) arranged on a linkage wheel (14); the linkage wheel (14) is connected to the base structure (1) via a mounting seat (16); the linkage wheel (14) cooperates with a transmission wheel (18) for transmission via a transmission belt (17); the transmission wheel (18) is connected to the output end of a second motor (19); and the second motor (19) is connected to the base structure (1) via a second fixing seat (20).

3. The device for screening powder after biomass fuel granulation according to claim 1, characterized in that: A material gathering section (22) is provided in the middle of the conveying roller structure (6).

4. The device for screening powder after biomass fuel granulation according to claim 1, characterized in that: Side baffles (23) cooperating with the screen conveyor belt (7) are symmetrically provided at both ends of the conveyor roller structure (6).

5. The device for screening powder after biomass fuel granulation according to claim 1, characterized in that: The screen conveyor belt (7) is provided with a material gathering inclined surface (24) cooperating with the material gathering section (22), and a screen mesh belt (25) is provided in the middle of the material gathering inclined surface (24).

6. The device for screening powder after biomass fuel granulation according to claim 1, characterized in that: The base structure (1) is symmetrically provided with support arms (10), and the support arms (10) are provided with a guide slag discharge trough (11) that cooperates with the screening mesh belt (25) to screen materials.

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