Impurity removal device for biomass raw materials

Abstract

The utility model discloses an impurity removing device for biomass raw materials. The impurity removing device comprises a machine frame, a feeding groove obliquely formed in the machine frame, a screening groove obliquely formed in the machine frame and located below the feeding groove, and a collecting groove obliquely formed in the machine frame and located below the screening groove. The feeding groove comprises a material guiding section and a material distributing section which is integrated with the material guiding section and is in a trapezoid shape, a plurality of material distributing plates used for dispersing materials are arranged on the material distributing section, and a plurality of magnetic strips are fixedly connected to an outlet of the material guiding section. Compared with the prior art, the utility model has the advantages that the plurality of magnetic strips are arranged at the discharge end of the feed chute, the characteristic that materials are fully contacted with the magnetic strips after being thinned is utilized, and the speed of the materials sliding down from the upper end of the feed chute is lower, so that the magnetic strips can more effectively adsorb iron impurities in the materials, and the removal rate is higher.

Description

Technical Field

[0001] This utility model relates to the technical field of biomass pellet production equipment, and in particular to a device for removing impurities from biomass raw materials. Background Technology

[0002] Biomass fuel is a renewable energy source derived from organic matter such as wood, crop residues, herbs, and animal manure. A crucial step in its production process is the removal of impurities from the raw materials. This process aims to eliminate metal fragments and other non-target biomaterials from the biomass, thereby improving fuel quality and combustion efficiency. This impurity removal process ensures that biomass fuel is converted into energy more efficiently, while simultaneously reducing damage to production equipment and environmental impact.

[0003] Chinese utility model patent application CN 219965171 U discloses a biomass raw material impurity removal device that uses magnetic rollers to remove metal impurities from the material. However, because the rollers are located downstream of the filter plate, ferrous metals such as nails or wires easily get caught on the filter plate, causing blockage. Furthermore, the rollers are located inside the casing, making it difficult to observe the adsorption of ferrous metals. Additionally, the material falls directly, and ferrous metal impurities are easily carried along with it, resulting in poor ferrous metal removal. Therefore, improvements are necessary. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a device for removing impurities from biomass raw materials.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A device for removing impurities from biomass raw materials includes a frame, a feed trough inclinedly disposed on the frame, a screening trough inclinedly disposed on the frame and located below the feed trough, and a collection trough inclinedly disposed on the frame and located below the screening trough; the feed trough includes a guiding section and a trapezoidal distributing section integral with the guiding section, the distributing section being provided with multiple distributing plates for dispersing materials, and multiple magnetic strips being fixedly connected to the outlet of the guiding section.

[0007] Preferably, the screening trough includes a bottom plate with screen holes and a side plate fixed to the side of the bottom plate; the lower end of the screening trough is rotatably connected to the frame, and the higher end is provided with a drive mechanism. The drive mechanism includes an eccentric shaft rotatably mounted on the frame, a connecting seat fixed to the screening trough, a rocker arm with both ends rotatably connected to the eccentric shaft and the connecting seat respectively, and a geared motor fixed to the frame and with its output end fixed to one end of the eccentric shaft.

[0008] Preferably, a sleeve is fixedly connected to the lower end of the screening tank, and a support rod is fixedly connected to the frame, with the sleeve rotatably mounted on the support rod.

[0009] Preferably, the eccentric shaft is mounted on the frame via a bearing housing.

[0010] Preferably, the magnetic strip is connected to the feed trough by magnetic attraction.

[0011] The above technical solution has the following advantages:

[0012] This invention employs a feeding trough to effectively spread the material, ensuring its uniform distribution before entering subsequent processing steps. Multiple magnetic strips are installed at the outlet end of the feeding trough, utilizing the characteristic of the material making full contact with the magnetic strips after being spread thinly. Furthermore, because the material slides down the top of the feeding trough at a low speed, the magnetic strips can more effectively adsorb iron impurities in the material. Thus, through this simple and effective method, efficient removal of iron impurities from the material is achieved. In addition, the magnetic strips used in this invention are not only easy to observe the adsorption of iron impurities on their surface, but also very easy to disassemble and install, making replacement and cleaning of the magnetic strips convenient and quick, greatly improving operational efficiency and maintenance convenience. Attached Figure Description

[0013] Figure 1 This is a structural diagram of one embodiment of the present utility model;

[0014] Figure 2 This is a top view;

[0015] Figure 3 for Figure 1 3D diagram;

[0016] Figure 4 for Figure 3 Enlarged view of section B;

[0017] Figure 5 for Figure 2 A three-dimensional sectional view along the center AA;

[0018] Figure 6 For Figure 5 Enlarged view of section C;

[0019] In the picture:

[0020] 1-Frame, 2-Feed trough, 3-Screening trough, 4-Collection trough, 5-Guide section, 6-Paper distribution section, 7-Distribution plate, 8-Magnetic strip, 9-Screen hole, 10-Bottom plate, 11-Side plate, 12-Eccentric shaft, 13-Connecting seat, 14-Rock arm, 15-Gear motor, 16-Sleeve, 17-Support rod, 18-Bearing seat. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] As shown in the attached figure, a biomass raw material impurity removal device includes a frame 1, a feeding trough 2 inclinedly arranged on the frame 1, a screening trough 3 inclinedly arranged on the frame 1 and located below the feeding trough 2, and a collection trough 4 inclinedly arranged on the frame 1 and located below the screening trough 3; the feeding trough 2 includes a guiding section 5 and a material spreading section 6 integral with the guiding section 5 and in a trapezoidal shape, the material spreading section 6 is provided with multiple material distributing plates 7 for dispersing materials, and multiple magnetic strips 8 are fixedly connected to the outlet of the guiding section 5.

[0023] The arrangement of the material distribution plates 7 is sufficient to disperse the material evenly. It can be one set or multiple sets distributed along the material direction.

[0024] As a specific technical solution in this embodiment, the screening tank 3 includes a base plate 10 with screen holes 9 and a side plate 11 fixedly connected to the side of the base plate 10. The lower end of the screening tank 3 is rotatably connected to the frame 1, and the higher end is provided with a driving mechanism. The driving mechanism includes an eccentric shaft 12 rotatably mounted on the frame 1, a connecting seat 13 fixedly connected to the screening tank 3, a rocker arm 14 with both ends rotatably connected to the eccentric shaft 12 and the connecting seat 13 respectively, and a reduction motor 15 fixedly connected to the frame 1 and with its output end fixedly connected to one end of the eccentric shaft 12. By setting up the driving mechanism, the eccentric shaft 12 of the driving mechanism is driven by the reduction motor 15. The eccentric shaft 12 drives the rocker arm 14, and the rocker arm 14 pulls the connecting seat 13 and the screening tank 3 to swing, thereby causing the screening tank 3 to swing back and forth with a small amplitude along its lower end, so that the material on it shakes and jumps, avoiding material blockage of the screen holes 9 and ensuring high screening efficiency.

[0025] As a specific technical solution in this embodiment, a sleeve 16 is fixedly connected to the lower end of the screening tank 3, and a support rod 17 is fixedly connected to the frame 1. The sleeve 16 is rotatably mounted on the support rod 17. Obviously, the rotatable connection between the screening tank 3 and the frame 1 can also adopt other commonly used rotatable structures.

[0026] As a specific technical solution in this embodiment, the eccentric shaft 12 is mounted on the frame 1 via a bearing seat 18. Obviously, the eccentric shaft 12 and the frame 1 can also be connected by other commonly used rotating methods, and the eccentric shaft can also be replaced by a crankshaft or an eccentric wheel.

[0027] As a specific technical solution in this embodiment, the magnetic strip 8 is connected to the feed trough 2 by magnetic attraction. Specifically, the feed trough 2 is made of ferrous metal, and the magnetic strip 8 is connected to the feed trough 2 by magnetic attraction. Obviously, a non-ferrous metal feed trough 2 can also be used, and the continuity of the magnetic strip 8 can be achieved by fixing an iron block to the feed trough 2. Obviously, the magnetic strip 8 can also be connected to the feed trough 2 by bolts or other commonly used connecting parts.

[0028] During operation, the material is conveyed to the guide section 5 via a conveying device. The material then slides down the guide section 5 to the spreading section 6. The distribution plate 7 distributes the material evenly across the spreading section 6, ensuring a thinner layer and sufficient contact between the material and the magnetic strip 8. Because the material slides down from the top of the feed trough 2 at a relatively low speed, the magnetic strip 8 can more effectively adsorb iron impurities in the material, achieving efficient removal of iron impurities. Furthermore, the magnetic strip 8 used in this invention is not only easy to observe the adsorption of iron impurities on its surface, but also very easy to disassemble and install, making the replacement and cleaning of the magnetic strip 8 convenient and quick, greatly improving operational efficiency and maintenance convenience.

[0029] In the description of the above embodiments, for the sake of brevity and clarity, some components and their specific structural details that are not directly related to the core innovations of this invention have been omitted. These omitted parts all fall within the scope of existing technology, and those skilled in the art can fully implement the design and manufacture of these parts based on their professional knowledge and existing technical materials. Therefore, they will not be described in detail here.

[0030] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A device for removing impurities from biomass raw materials, comprising a frame (1), a feed trough (2) inclinedly disposed on the frame (1), a screening trough (3) inclinedly disposed on the frame (1) and located below the feed trough (2), and a collection trough (4) inclinedly disposed on the frame (1) and located below the screening trough (3); characterized in that: The feeding trough (2) includes a guiding section (5) and a trapezoidal material distribution section (6) integral with the guiding section (5). Multiple material distribution plates (7) for dispersing materials are provided on the material distribution section (6). Multiple magnetic strips (8) are fixedly connected to the outlet of the guiding section (5).

2. The biomass raw material impurity removal device according to claim 1, characterized in that: The screening tank (3) includes a bottom plate (10) with screen holes (9) and a side plate (11) fixed to the side of the bottom plate (10); the lower end of the screening tank (3) is rotatably connected to the frame (1), and the higher end is provided with a drive mechanism. The drive mechanism includes an eccentric shaft (12) rotatably mounted on the frame (1), a connecting seat (13) fixedly connected to the screening tank (3), a rocker arm (14) with both ends rotatably connected to the eccentric shaft (12) and the connecting seat (13) respectively, and a geared motor (15) fixedly connected to the frame (1) and with its output end fixedly connected to one end of the eccentric shaft (12).

3. The biomass raw material impurity removal device according to claim 2, characterized in that: A sleeve (16) is fixedly connected to the lower end of the screening tank (3), and a support rod (17) is fixedly connected to the frame (1). The sleeve (16) is rotatably mounted on the support rod (17).

4. The biomass raw material impurity removal device according to claim 2, characterized in that: The eccentric shaft (12) is mounted on the frame (1) via a bearing seat (18).

5. The biomass raw material impurity removal device according to claim 3, characterized in that: The eccentric shaft (12) is mounted on the frame (1) via a bearing seat (18).

6. The impurity removal device for biomass raw materials according to any one of claims 1-5, characterized in that: The magnetic strip (8) is connected to the feed trough (2) by magnetic attraction.

Images