Screw conveyer for conveying viscous materials

Abstract

The utility model relates to the technical field of spiral conveying, in particular to a spiral conveyor for conveying viscous materials. Comprising an auxiliary feeding device of which a feeding hole is communicated with an external material source; a feeding port of the spiral conveying device is connected with a discharging port of the auxiliary feeding device, and the spiral conveying device is used for receiving and conveying the viscous materials; a feeding port of the material stirring and dispersing device is connected with a discharging port of the spiral conveying device, and the material stirring and dispersing device is used for dispersing the conveyed viscous materials; the auxiliary feeding device comprises a staggered opposite rotation structure, and the staggered opposite rotation structure achieves staggered rotation through a driving assembly so as to assist materials in entering the spiral conveying device. And through a staggered opposite rotating structure of the auxiliary feeding device, the materials are pushed in two directions, and the feeding efficiency is remarkably improved. Compared with a traditional spiral conveyor, the material can be prevented from being accumulated or blocked at the feeding port.

Description

Technical Field

[0001] This utility model relates to the field of screw conveying technology, and specifically to a screw conveyor for conveying viscous materials. Background Technology

[0002] Screw conveyors, as a common continuous conveying equipment, are widely used in industries such as coal, grain, cement, and chemicals for conveying bulk materials horizontally, inclined, or vertically. Their core working principle is that rotating helical blades propel the material along the conveying direction. Traditional screw conveyors have advantages such as simple structure, low cost, good sealing, and convenient maintenance, making them suitable for conveying powders, granules, and small lumps of loose materials, such as coal powder, sand, and grains. However, when dealing with viscous materials, such as wet, sticky slag, paste-like chemical raw materials, and high-moisture food ingredients, the performance of traditional screw conveyors significantly decreases, specifically manifested in the following problems:

[0003] Sticky materials, due to their high adhesion and cohesiveness, tend to accumulate at the feed inlet, making it difficult for them to enter the conveyor smoothly, resulting in low feeding efficiency or even blockage.

[0004] When materials are conveyed inside the screw drum, they tend to adhere to the screw blades or the drum wall. As the conveying distance increases, the adhesion layer gradually thickens, forming resistance and eventually causing the screw shaft to jam.

[0005] The materials after conveying are often discharged in clumps because they are not sufficiently dispersed, which affects the efficiency of subsequent processing or packaging. Utility Model Content

[0006] This utility model provides a screw conveyor for conveying viscous materials. Its purpose is to solve the problems of smooth feeding, stable conveying and dispersed discharge of viscous materials, so as to overcome the shortcomings of the prior art and meet the needs of industrial production for efficient and reliable conveying of highly viscous materials.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A screw conveyor for conveying viscous materials includes:

[0009] An auxiliary feeding device, the feed inlet of which is connected to an external material source;

[0010] A screw conveyor, the inlet of which is connected to the outlet of the auxiliary feeding device, is used to receive and convey viscous materials;

[0011] A material dispersing device, the inlet of which is connected to the outlet of the screw conveyor, is used to disperse the viscous material after conveying;

[0012] The auxiliary feeding device includes an alternating counter-rotating structure, which is driven by a drive component to achieve alternating rotation in order to assist the material in entering the screw conveyor.

[0013] Furthermore, the auxiliary feeding device also includes:

[0014] The feed hopper is fixedly connected to the screw cylinder of the screw conveyor.

[0015] A counter-rotating gear set, which is connected to an interleaved counter-rotating structure via a connecting shaft;

[0016] The drive chain assembly has one end connected to the opposing rotating gear assembly and the other end connected to the second drive motor, which drives the staggered opposing rotating structure to rotate in opposite directions.

[0017] Furthermore, the staggered opposing rotation structure consists of two sets of counter-rotating feeding racks to create a bidirectional pushing effect on the material.

[0018] Furthermore, the screw conveyor includes a drive motor, which is connected to the screw shaft via a coupling.

[0019] Furthermore, the pitch of the spiral blades of the spiral shaft gradually increases from the feed inlet to the discharge outlet.

[0020] Furthermore, the end of the screw shaft on the discharge port side is not fixedly supported to reduce material conveying resistance.

[0021] Furthermore, the material mixing device includes a drive motor three and a mixing cylinder, the mixing cylinder being fixedly connected to the end of the spiral cylinder, and the drive motor three being connected to the mixing structure through a coupling two.

[0022] Furthermore, the blades of the agitation structure are wedge-shaped along the direction of rotation.

[0023] Furthermore, the inner wall of the mixing cylinder is provided with a guide groove, which matches the rotation direction of the mixing structure to guide the material to disperse evenly.

[0024] The beneficial effects achieved by this utility model are as follows:

[0025] This invention relates to a screw conveyor for conveying viscous materials. Through an alternating rotating structure of the auxiliary feeding device, it pushes materials bidirectionally, significantly improving feeding efficiency. Compared to traditional screw conveyors, it avoids material accumulation or blockage at the feed inlet.

[0026] The screw conveyor uses a screw blade design with gradually increasing pitch and a free end at the screw shaft discharge point. The gradually increasing pitch expands the material conveying space and reduces the pressure inside the cylinder; the free end design releases the axial force generated by material compression, effectively reducing screw shaft jamming and ensuring continuous and stable conveying.

[0027] The wedge-shaped dispersing blades of the material dispersing device quickly disperse clumps of material into a uniform dispersion through rotational shearing action, making it easier to discharge. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2 This is a cross-sectional view of the present invention;

[0031] Figure 3 This is an enlarged view of the interleaved opposing rotation structure of this utility model;

[0032] Figure 4 This is a schematic diagram of the stirring structure of this utility model;

[0033] Figure 5 This is a schematic diagram of the spiral shaft of this utility model;

[0034] In the picture:

[0035] 100. Auxiliary feeding device; 110. Feed hopper; 120. Interlocking counter-rotating structure; 130. Counter-rotating gear set; 150. Drive chain set; 160. Drive motor II;

[0036] 200. Screw conveyor; 210. Screw drum; 220. Drive motor; 230. Coupling; 240. Screw shaft;

[0037] 300. Material mixing device; 310. Drive motor three; 320. Mixing structure; 330. Coupling two; 340. Mixing cylinder.

[0038] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] 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.

[0040] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0041] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0042] like Figures 1-5 As shown, a screw conveyor for conveying viscous materials includes: an auxiliary feeding device 100, whose inlet is connected to an external material source; a screw conveying device 200, whose inlet is connected to the outlet of the auxiliary feeding device 100, for receiving and conveying viscous materials; and a material dispersing device 300, whose inlet is connected to the outlet of the screw conveying device 200, for dispersing the conveyed viscous materials; wherein the auxiliary feeding device 100 includes an alternating counter-rotating structure 120, which is driven by a drive assembly to achieve alternating rotation to assist the material in entering the screw conveying device 200.

[0043] The feed hopper 110 is fixedly connected to the screw cylinder 210 of the screw conveyor 200; the opposing rotating gear set 130 is connected to the staggered opposing rotating structure 120 through a connecting shaft; the drive chain set 150 is connected at one end to the opposing rotating gear set 130 and at the other end to the drive motor 160, which drives the staggered opposing rotating structure 120 to rotate in opposite directions.

[0044] The feed hopper 110 serves as the outer shell of the auxiliary feeding device 100. During assembly, the feed hopper 110 is directly welded to the screw cylinder 210. The hopper contains an alternating counter-rotating structure 120, which is connected to the counter-rotating gear set 130 via a connecting shaft. A drive chain assembly 150 connects the counter-rotating gear set 130 and a second drive motor 160. The rotation of the second drive motor 160 sequentially drives the drive chain assembly 150 and the counter-rotating gear set 130 to rotate. The alternating counter-rotating structure 120 performs this alternating counter-rotating motion, thus assisting in the feeding process.

[0045] The staggered counter-rotating structure 120 consists of two sets of counter-rotating material pushers to create a bidirectional pushing effect on the material. The auxiliary feeding device 100 solves the problem of easy clogging at the feed inlet of viscous materials, ensuring that the material smoothly enters the screw conveyor 200. The two sets of material pushers alternately push the material, breaking the adhesion between materials and preventing agglomeration; the staggered rotation action forms a dual "shearing + pushing" effect, forcing the material into the screw conveyor 200.

[0046] The screw conveyor 200 includes a drive motor 220, a screw drum 210, a coupling 230, and a screw shaft 240. The drive motor 220 is connected to the screw shaft 240 via the coupling 230. The pitch of the screw blades on the screw shaft 240 gradually increases from the inlet to the outlet. The end of the screw shaft 240 at the outlet side has no fixed support to reduce material conveying resistance. The screw conveyor 200 efficiently conveys viscous materials, preventing blockages caused by adhesion during conveying.

[0047] The screw drum 210 is the main outer shell of the screw conveyor 200. During assembly, the screw drum 210 is directly welded to the feed hopper 110. The screw shaft 240 is installed inside the screw drum 210. On the discharge port side of the screw conveyor 200, a drive motor 220 is arranged, and the drive motor 220 is connected to the screw shaft 240 via a coupling 230. When the drive motor 220 is energized and rotates, it drives the coupling and the screw shaft 240 to rotate sequentially within the screw drum 210. The screw shaft 240 then pushes the viscous material entering from the feed port toward the discharge port.

[0048] The material dispersing device 300 includes a drive motor 310, a dispersing structure 320, a coupling 330, and a dispersing cylinder 340. The dispersing cylinder 340 is fixedly connected to the end of the spiral cylinder 210, and the drive motor 310 is connected to the dispersing structure 320 via the coupling 330. The blades of the dispersing structure 320 are wedge-shaped along the direction of rotation. The inner wall of the dispersing cylinder 340 is provided with a guide groove, which matches the rotation direction of the dispersing structure 320 to guide the material to disperse evenly.

[0049] The mixing cylinder 340 is the main outer shell of the material mixing device 300. During assembly, the mixing cylinder 340 is bolted to the discharge port of the screw conveyor 210. The mixing structure 320 is installed inside the mixing cylinder 340, and the drive motor 310 is installed at the upper end. The mixing structure 320 and the drive motor 310 are connected by a coupling 330. When the drive motor 310 rotates, it drives the coupling 330 and the mixing structure 320 to rotate sequentially, thus mixing the viscous material exiting the discharge port of the screw conveyor 200. Finally, the mixed viscous material is input into a designated area.

[0050] The material dispersing device 300 disperses clumps of viscous material after conveying, ensuring uniform discharge. The blades decrease in thickness along the direction of rotation, forming sharp shearing edges, which disperse the sticky material into a loose state through rotational cutting action.

[0051] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A screw conveyor for conveying viscous materials, characterized in that, include: An auxiliary feeding device (100) has its inlet connected to an external material source; A screw conveyor (200) has its inlet connected to the outlet of the auxiliary feeding device (100) for receiving and conveying viscous materials; The material dispersing device (300) has its inlet connected to the outlet of the screw conveyor (200) and is used to disperse the viscous material after conveying. The auxiliary feeding device (100) includes an alternating counter-rotating structure (120), which is driven by a drive assembly to achieve alternating rotation to assist the material in entering the screw conveyor (200).

2. A screw conveyor for conveying viscous materials according to claim 1, characterized in that, The auxiliary feeding device (100) further includes: The feed hopper (110) is fixedly connected to the screw drum (210) of the screw conveyor (200); Opposing rotating gear set (130), which is connected to the staggered opposing rotating structure (120) via connecting shaft (140); The drive chain assembly (150) is connected at one end to the opposing rotating gear assembly (130) and at the other end to the drive motor 2 (160), which drives the interlaced opposing rotating structure (120) to rotate in opposite directions.

3. A screw conveyor for conveying viscous materials according to claim 2, characterized in that: The staggered opposing rotating structure (120) consists of two sets of counter-rotating material feeders to create a bidirectional pushing effect on the material.

4. A screw conveyor for conveying viscous materials according to claim 2, characterized in that, The screw conveyor (200) includes: a drive motor (220) which is connected to the screw shaft (240) via a coupling (230).

5. A screw conveyor for conveying viscous materials according to claim 4, characterized in that: The pitch of the spiral blades of the spiral shaft (240) gradually increases from the feed inlet to the discharge outlet.

6. A screw conveyor for conveying viscous materials according to claim 4, characterized in that: The end of the screw shaft (240) on the discharge port side is not fixedly supported to release the resistance to material conveying.

7. A screw conveyor for conveying viscous materials according to claim 2, characterized in that, The material mixing device (300) includes a third drive motor (310) and a mixing cylinder. The mixing cylinder (340) is fixedly connected to the end of the spiral cylinder (210). The third drive motor (310) is connected to the mixing structure (320) through a second coupling (330).

8. A screw conveyor for conveying viscous materials according to claim 7, characterized in that: The blades of the agitation structure (320) are wedge-shaped along the direction of rotation.

9. A screw conveyor for conveying viscous materials according to claim 7, characterized in that: The inner wall of the mixing cylinder (340) is provided with a guide groove, which is matched with the rotation direction of the mixing structure (320) to guide the material to disperse evenly.

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