Large spiral conveying device with solid-liquid separation function

Abstract

The utility model discloses a large -scale screw conveying device with solid -liquid separation function belongs to material handling equipment technical field, including support, promote shell, material box, drive shaft and spiral blade that set in promote shell, discharge gate and drain pipe, the inside fixed of drying box has the air pipe, and the air pipe opening covers the filter screen, and the fan leaf is rotationally arranged in the air pipe, and the fan leaf is driven to rotate and produces the airflow through the rotating column and motor transmission connection, and simultaneously, the motor drives the fan leaf rotation to form the hot air after the airflow is heated to the filter screen of heating, and the material that is falling is blown to dry. The utility model integrates solid -liquid separation conveying and hot -blast drying function in one, and the structure is compact, realizes continuous automation processing, remarkably simplifies the production process, improves the processing efficiency, and effectively saves the equipment land space.

Description

Technical Field

[0001] This utility model relates to the field of material handling equipment technology, and in particular to a large screw conveyor with solid-liquid separation function. Background Technology

[0002] Screw conveyors are widely used continuous conveying equipment. Due to their simple structure, relatively low cost, and good sealing performance, they are used in many industries such as chemical, building materials, food, and environmental protection to convey powdery, granular, and small lump materials.

[0003] In many real-world production scenarios, the materials to be transported often contain high levels of moisture, such as in wastewater treatment, food processing, or mineral washing. For these wet materials, solid-liquid separation is usually required during or after transport to remove excess liquid, facilitating subsequent processing, storage, or disposal.

[0004] Existing processing methods typically combine screw conveying with solid-liquid separation, removing most of the liquid during transport through screw extrusion. However, the material after initial dehydration still contains some surface and internal moisture, failing to meet the drying standards required by certain processes. Therefore, after exiting the screw conveyor, this material needs to be transferred to independent drying equipment for final drying. This not only requires multiple independent sets of equipment, resulting in a large floor space and high investment costs for the entire production line, but also easily causes secondary pollution and material loss during the transfer of materials between different devices. Furthermore, it increases the complexity and energy consumption of the system, reducing overall production efficiency.

[0005] Therefore, this utility model proposes a large-scale screw conveyor with solid-liquid separation function to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems in the existing technology, the solid-liquid separation and subsequent drying of materials need to be completed in steps by different equipment, which results in long processing flow, complex equipment connection, large footprint and low overall efficiency. The present invention aims to provide a large screw conveyor with solid-liquid separation function that has been improved in structure and can integrate solid-liquid separation and drying functions into one, effectively solving the above problems.

[0007] This utility model provides a large screw conveyor with solid-liquid separation function, including: a support frame, a lifting shell that is inclinedly fixed to the support frame, a material box that is connected to the feeding end of the lifting shell, a drive shaft that is rotatably installed inside the lifting shell, a screw blade that is fixedly connected to the outer peripheral wall of the drive shaft, a discharge port that is fixedly connected to the discharge end of the lifting shell, and a drain pipe that is connected to the bottom of the material box; and a drying mechanism.

[0008] Among them, the drying mechanism is an innovative structure that enables instant drying. The drying mechanism includes a drying chamber that is fixedly connected to the support frame. The top inlet of the drying chamber is directly opposite the outlet of the lifting shell. This direct alignment of the spatial layout ensures that the pre-separated materials can seamlessly enter the drying process.

[0009] Furthermore, the drying chamber is fixedly connected to an air duct, the upper opening of which is covered with a filter screen. A fan blade is rotatably mounted inside the duct, and the fan blade is connected to the output end of the motor via a rotating column. The motor, rotating column, and fan blade together constitute the air-powered drive system, while the filter screen serves as a crucial interface for heat exchange and protection. The entire drying mechanism and the screw conveyor section are organically combined to form a continuous, efficient, and automated processing system.

[0010] Preferably, in order to securely install the motor, the drying mechanism also includes a support rod, through which the motor is fixed to the inner wall of the drying chamber, ensuring its stability during high-speed operation.

[0011] Preferably, to provide the heat source required for drying, the filter screen is specifically structured as an electrically heated filter screen. When energized, the electrically heated filter screen generates heat itself, directly heating the airflow blown by the fan blades into hot air as it passes through it. This design offers high thermal efficiency and a compact structure.

[0012] Preferably, in order to make the screw conveying process more stable and to effectively constrain the material, the inner part of the lifting shell is fixedly connected with mounting groove one and mounting groove two. Mounting groove one and mounting groove two together form a U-shaped groove for the screw blades to rotate, providing a clear guiding path for the upward movement of the material.

[0013] Preferably, to further improve the solid-liquid separation effect, based on the structure of the U-shaped trough, a leakage hole is provided at the top of the first trough near the discharge port. When the material is squeezed and conveyed upwards, the separated liquid can flow back to the bottom of the material box through these leakage holes, connecting the lifting shell and the bottom cavity of the material box, and be discharged through the drain pipe, thus preventing the liquid from being carried to the discharge port.

[0014] Preferably, a work platform is fixedly connected to one side of the support to facilitate operators' observation of the device's operating status and routine maintenance.

[0015] Preferably, in order to ensure the cleanliness and safety of the feeding process and to prevent materials from splashing or slipping outwards when being fed, a baffle is fixedly connected to the edge of the top feed inlet of the hopper.

[0016] Preferably, in order to dry the material more evenly and avoid the material from accumulating at the air outlet, an inclined plate is fixedly connected to the inner wall of the drying chamber and to one side of the air duct. The material falling from the outlet will slide down the surface of the inclined plate and be guided to a more open area to fully contact the hot air.

[0017] This utility model has the following beneficial effects: 1. This utility model integrates a drying mechanism below the discharge port of the screw conveyor. The drying mechanism can perform hot air drying on the material discharged from the discharge port in real time. This solves the problem that the solid-liquid separation and drying of materials in the prior art need to be completed by different equipment in steps, resulting in a long processing flow, complex equipment connection, large footprint and low efficiency. It achieves the technical effect of integrating solid-liquid separation and drying into one unit, realizing automated continuous operation, significantly shortening the processing flow, improving production efficiency and saving equipment space. 2. This utility model, by setting a heatable filter screen in the drying mechanism and blowing the heat generated by the filter screen directly onto the falling material by the fan blades, combines heating and blowing functions closely, has a simple and compact structure, high thermal energy utilization rate, and can uniformly and quickly remove surface moisture from the material, further improving drying quality and processing efficiency. 3. This utility model, through the extrusion and pushing of the spiral blades and the opening of a leakage hole at the upper end of the mounting groove, allows the liquid to flow back to the bottom of the material box during the conveying process and be discharged in a concentrated manner through the drain pipe, thereby achieving efficient solid-liquid separation during the conveying process. The separated liquid can be discharged in a timely manner, avoiding the liquid being carried to the discharge port along with the material, improving the initial dehydration effect, and reducing the load on subsequent drying processes. Attached Figure Description

[0018] Figure 1 This is a front view of a large screw conveyor device with solid-liquid separation function proposed in this utility model; Figure 2 This is a partial structural exploded view of a large screw conveyor device with solid-liquid separation function proposed in this utility model; Figure 3 This is a partial front view of a large screw conveyor device with solid-liquid separation function proposed in this utility model; Figure 4 This is a partial structural exploded view of a large screw conveyor device with solid-liquid separation function proposed in this utility model.

[0019] Legend: 1. Support frame; 2. Drying mechanism; 201. Drying box; 202. Air duct; 203. Filter screen; 204. Support rod; 205. Motor; 206. Rotating column; 207. Fan blade; 3. Working platform; 4. Material box; 5. Baffle; 6. Lifting shell; 7. Discharge port; 8. Mounting slot one; 9. Mounting slot two; 10. Drive shaft; 11. Spiral blade; 12. Drain pipe. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] Example: Please refer to Figures 1 to 4 A large screw conveyor with solid-liquid separation function includes a support frame 1 and a lifting shell 6 inclinedly fixed to the support frame 1. The support frame 1 serves as the load-bearing foundation of the entire device, supporting the various components above it. For ease of operation and observation, a working platform 3 is also fixedly connected to one side of the support frame 1. The lifting shell 6 forms the main channel for material conveying and separation. A material box 4 is connected to the feed end of the lifting shell 6 to receive the material to be processed. A baffle 5 is fixedly connected to the edge of the top feed inlet of the material box 4 to prevent the material from slipping outwards during feeding. The drive shaft 10 is rotatably set. Inside the lifting housing 6, a spiral blade 11 is fixedly connected to the outer peripheral wall of the drive shaft 10 to push the material upward along the inner cavity of the lifting housing 6. The discharge end of the lifting housing 6 is fixedly connected to the discharge port 7 to discharge the preliminarily separated solid material. The bottom of the material box 4 is connected to the drain pipe 12 to discharge the separated liquid. It also includes a drying mechanism 2. The drying chamber 201 of the drying mechanism 2 is fixedly connected to the support 1, and the top inlet of the drying chamber 201 is directly opposite the discharge port 7 of the lifting housing 6 to receive the material discharged from the discharge port 7 and perform immediate drying treatment on it.

[0022] Please refer to Figure 1 and Figure 3The drying chamber 201 is internally connected to an air duct 202. A filter screen 203 covers the upper opening of the air duct 202, preventing material from entering the air duct 202. In this embodiment, the filter screen 203 heats up when energized during operation, acting as a heat source to heat the airflow. An inclined plate is fixedly connected to the inner wall of the drying chamber 201, located on one side of the air duct 202. The inclined plate guides the material falling from the discharge port 7, ensuring it stays away from the opening of the air duct 202 as it falls. The drying mechanism 2 also includes a support rod 204, which is fixedly connected to the drying chamber 201. The inner wall spans the inner cavity of the air duct 202. The motor 205 is fixedly connected to the support rod 204. The output end of the motor 205 is connected to the fan blade 207 through the rotating column 206. The fan blade 207 is rotatably set inside the air duct 202 and is located below the filter screen 203. When the motor 205 works, it drives the rotating column 206 and the fan blade 207 to rotate together. The airflow generated by the fan blade 207 is blown upward and heated to form hot air when it passes through the electrically heated filter screen 203. The hot air is blown out from the upper opening of the air duct 202 to dry the material falling from the discharge port 7.

[0023] Please refer to Figure 2 and Figure 4 In order to standardize the material conveying path, the inner part of the lifting shell 6 is fixedly connected with mounting groove 1 8 and mounting groove 2 9. The two mounting grooves 1 8 and mounting groove 2 9 together form a U-shaped groove for the spiral blade 11 to rotate. Based on the structure of the above-mentioned mounting groove 8 and mounting groove 9, as a further preferred solution, in order to achieve solid-liquid separation, a leakage hole is provided at the top of the mounting groove 8 near the discharge port 7, and the leakage hole is connected to the bottom cavity of the material box 4 through the lifting shell 6. As another preferred embodiment, please refer to Figure 1 To facilitate the observation and maintenance of the device by the operators, a working platform 3 is fixedly connected to one side of the bracket 1; As another preferred embodiment, please refer to Figure 1 To prevent materials from slipping or splashing from the side when being fed in, a baffle 5 is fixedly connected to the edge of the top feed inlet of the material box 4.

[0024] Working principle: The main support component of this device is the bracket 1. The employee observes the device through the work platform 3 and puts the material into the top of the material box 4. The top baffle 5 prevents the material from sliding off the side. The drive device drives the spiral blades 11 to rotate through the drive shaft 10. While rotating, the spiral blades 11 push the material upward along the mounting groove 8 and mounting groove 9. The liquid moving upward with the material flows into the cavity at the bottom of the material box 4 from the drain hole at the top of the mounting groove 8 and is discharged through the drain pipe 12. The rising material is finally discharged from the discharge port 7 at the right end of the lifting shell 6, thus realizing the transportation and separation of water and material.

[0025] Material discharged from outlet 7 falls into drying chamber 201. The internal inclined plate guides the material away from air duct 202. The filter screen 203 blocks the material from entering air duct 202 again. As the material falls, the filter screen 203 heats up, generating a large amount of heat. The support rod 204 supports the motor 205. The motor 205 drives the fan blades 207 to rotate through the rotating column 206. The fan blades 207 blow the heat down onto the falling material, removing moisture from its surface. This achieves the drying treatment of the material by the drying mechanism 2.

Claims

1. A large screw conveyor with solid-liquid separation function, comprising a support (1), a lifting shell (6) fixedly inclined to the support (1), a material box (4) connected to the feed end of the lifting shell (6), and a drive shaft (10) rotatably disposed in the lifting shell (6), wherein a screw blade (11) is fixedly connected to the outer peripheral wall of the drive shaft (10), a discharge port (7) is fixedly connected to the discharge end of the lifting shell (6), and a drain pipe (12) is connected to the bottom of the material box (4); Its features are, The conveying device also includes a drying mechanism (2), which includes a drying box (201) fixedly connected to the support (1), with the top inlet of the drying box (201) facing the outlet (7). The drying chamber (201) is fixedly connected to an air duct (202), and the upper opening of the air duct (202) is covered with a filter screen (203). The air duct (202) is equipped with a fan blade (207) that rotates inside. The fan blade (207) is connected to the output end of the motor (205) via a rotating column (206).

2. A large screw conveyor with solid-liquid separation function according to claim 1, characterized in that, The drying mechanism (2) also includes a support rod (204), and the motor (205) is fixed to the inner wall of the drying chamber (201) through the support rod (204).

3. A large screw conveyor with solid-liquid separation function according to claim 1, characterized in that, The filter (203) is an electrically heated filter used to heat the airflow blown out by the fan blades (207).

4. A large screw conveyor with solid-liquid separation function according to claim 1, characterized in that, The lifting shell (6) is internally fixedly connected with mounting groove one (8) and mounting groove two (9), which together form a U-shaped groove for the spiral blade (11) to rotate.

5. A large screw conveyor with solid-liquid separation function according to claim 4, characterized in that, A leakage hole is provided at the top of the mounting groove (8) near the discharge port (7), and the leakage hole is connected to the bottom cavity of the material box (4) through the lifting shell (6).

6. A large screw conveyor with solid-liquid separation function according to claim 1, characterized in that, A working platform (3) is fixedly connected to one side of the bracket (1).

7. A large screw conveyor with solid-liquid separation function according to claim 1, characterized in that, A baffle (5) is fixedly connected to the edge of the top feed inlet of the material box (4).

8. A large screw conveyor with solid-liquid separation function according to claim 1, characterized in that, An inclined plate is fixedly connected to the inner wall of the drying chamber (201) and located on one side of the air duct (202) for guiding the material falling from the discharge port (7).

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