A conveying line for powdery sludge

Abstract

The utility model provides a kind of conveying production line of powdery sludge, conveying production line input end is connected with first scraper, conveying production line includes second scraper conveyor and screw conveying system, the input end and output end of second scraper conveyor are connected with first scraper and screw conveying system respectively, and there is manual gate valve between the output end of second scraper conveyor and screw conveying system;Screw conveying system includes several in space head-to-tail connection screw conveyer, the discharge port of last end screw conveyer in conveying direction is connected with bin top, bin two sides are fixed on ground by elevating support, bin bottom is equipped with discharge valve, and bin outside wall is equipped with vibration motor;Each screw conveyer includes conveying pipeline, screw blade and driving motor, and the one end of screw blade in conveying pipeline is connected with driving motor.The utility model effectively solves material adhesion, caking problem, and improves conveying efficiency.

Description

Technical Field

[0001] This utility model relates to the conveying of dry powder sludge, specifically to a conveying production line for powdery sludge. Background Technology

[0002] In the fields of environmental protection and resource recycling, the treatment and transportation of powdery sludge is a crucial link. With rapid industrial development and accelerated urbanization, the amount of sludge generated is increasing daily. Among them, powdery sludge with a moisture content of around 30% after drying faces many challenges during transportation due to its unique physical properties.

[0003] Traditional wet sludge conveying lines are primarily designed for sludge with high water content and relatively good flowability. Their conveying equipment and processes are ill-suited for powdery sludge. For example, the pipeline conveying method commonly used for wet sludge is prone to problems when conveying powdery sludge, such as material adhering to the inner wall of the pipe, clumping, and causing blockages. This leads to a significant decrease in conveying efficiency, or even complete failure to convey sludge. Furthermore, the sealing performance of traditional conveying equipment often fails to meet the requirements for conveying powdery sludge, easily generating dust during the process. This not only wastes materials but also poses serious hazards to the working environment and the health of operators, and does not comply with stringent environmental standards.

[0004] While some existing dry powder conveying equipment can handle powdery materials to a certain extent, it still has many shortcomings when it comes to materials like powdery sludge, which are sticky and prone to caking. For example, conventional screw conveyors have limited ability to break up and disperse caking materials when conveying powdery sludge, making it difficult to ensure uniform material conveying and easily causing blockages during the conveying process. In addition, in the storage stage, ordinary silos lack effective anti-caking and auxiliary discharge measures. When powdery sludge is stored in the silo for a long time, it is easy to adhere to and clump on the silo walls, affecting the smoothness of subsequent discharge.

[0005] In actual production, the lack of efficient conveying lines specifically designed for powdery sludge leads to low efficiency and increased costs throughout the sludge treatment process. Therefore, developing a conveying line that can adapt to the characteristics of powdery sludge, provide efficient and stable conveying, and is environmentally friendly and energy-saving has become an urgent problem to be solved. Utility Model Content

[0006] This utility model provides a conveying line for powdered sludge, effectively solving the problems of material adhesion and agglomeration, improving conveying efficiency, ensuring environmental standards, reducing production costs, and achieving efficient, stable, and environmentally friendly conveying of powdered sludge. The specific solution is as follows:

[0007] A conveying line for powdery sludge, wherein the input end of the conveying line is connected to a buried first scraper conveyor.

[0008] The conveying production line includes a second scraper conveyor and a screw conveyor system.

[0009] The input and output ends of the second scraper conveyor are connected to the first scraper conveyor and the screw conveyor system, respectively. A manual slide valve is connected between the output end of the second scraper conveyor and the screw conveyor system.

[0010] The screw conveyor system includes several screw conveyors connected end to end in space. The discharge port of the screw conveyor at the end of the conveying direction is connected to the top of the silo. The two sides of the silo are fixed to the ground by lifting brackets. The bottom of the silo is equipped with a discharge valve. A vibration motor is installed on the outer wall of the silo.

[0011] Each of the aforementioned screw conveyors includes a conveying pipe, screw blades, and a drive motor, with one end of the screw blade located inside the conveying pipe connected to the drive motor.

[0012] The spiral blade has serrated edges, or the edge of the spiral blade has blades spaced at equal intervals in the thickness direction.

[0013] Furthermore, the hopper is funnel-shaped, and a flip cover is provided on the top of the hopper. One end of the flip cover is hinged to one side of the top of the hopper, and a hydraulic push rod is connected to the flip cover.

[0014] Furthermore, one side wall of the hopper has an opening and a transparent viewing window is installed.

[0015] Furthermore, the screw conveying system includes a first shaftless screw conveyor, an inclined conveying screw conveyor unit with a shaft, and a second shaftless screw conveyor connected in sequence.

[0016] The first shaftless screw press is set horizontally.

[0017] The inclined conveyor screw conveyor unit consists of multiple inclined screw conveyors connected in sequence.

[0018] The second shaftless screw conveyor is inclined and connected to the material inlet on one side wall of the silo.

[0019] Furthermore, the conveyor production line also includes a dust removal system, which includes a dust collection hood, a dust removal pipe, and a centrifugal fan. The dust collection hood is located above the input and output ends of the second scraper conveyor. One end of the dust removal pipe is connected to the dust collection hood, and the other end is located inside the hopper. The dust removal pipe is equipped with a centrifugal fan.

[0020] The powdered sludge conveying line of this application has many technical advantages:

[0021] 1. Highly Efficient and Smooth Conveying: The spiral blades are designed with serrated edges or blades on the sides, effectively cutting and breaking up clumps of powdery sludge, ensuring uniform conveying, preventing blockages, and guaranteeing high efficiency and continuity of material transport. The spiral conveyor system consists of a combination of multiple spiral compressors. For example, a horizontally positioned first shaftless spiral compressor prevents material from tangling around the shaft, an inclined shafted spiral compressor unit raises the material height, and an inclined second shaftless spiral compressor precisely feeds material into the silo, adapting to complex environments and achieving highly efficient conveying.

[0022] 2. Stable and reliable discharge: The bottom of the silo is equipped with a discharge valve, and a vibrating motor is installed on the outer wall. When the vibrating motor is working, it loosens the powdery sludge adhering to the silo wall and causes it to fall back, breaking up clumps of sludge and ensuring smooth discharge from the outlet, thus improving the stability and reliability of the discharge.

[0023] 3. Convenient Material Management: The funnel-shaped silo, equipped with a flip-top and hydraulic push rod, allows for easy material entry during feeding and closes after feeding to prevent leakage, dust, and protect the material. A transparent window on the silo side wall allows operators to monitor material levels and clumping in real time, enabling timely measures to ensure normal production.

[0024] 4. Excellent environmental performance: The dust removal system equipped in the conveyor production line collects the dust generated at the inlet and outlet of the second scraper conveyor through a dust collection hood, and then transports the dust to the silo through a centrifugal fan and dust removal pipeline, reducing dust pollution to the working environment, protecting the health of operators, and meeting environmental protection requirements.

[0025] 5. Flexible operation and control: A manual gate valve is installed between the second scraper conveyor and the screw conveyor system. Operators can flexibly adjust the opening degree according to actual production needs, accurately control the material flow, and close the gate valve to facilitate equipment maintenance and repair. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram showing the connection of the first scraper conveyor, the second scraper conveyor, and the first shafted screw conveyor in the powdered sludge conveying production line of this utility model.

[0028] Figure 2 A schematic diagram of the second shafted screw conveyor in a screw conveyor system;

[0029] Figure 3 A schematic diagram showing the connection between the second shaftless screw conveyor and the hopper in a screw conveyor system;

[0030] Figure 4 Top view of the connection of the screw conveyor system;

[0031] Figure 5 This is a schematic diagram of a sawtooth-shaped shafted screw conveyor. Detailed Implementation

[0032] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0033] To fully understand this utility model, detailed steps and structures will be presented in the following description to illustrate the technical solution of this utility model. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0034] Reference Figure 1-5 As shown, this utility model provides a conveying line for powdery sludge, mainly used for transporting dried sludge with a moisture content of about 30%. Due to its low moisture content and powdery form, traditional wet sludge production lines require modification. To stably transport powdery sludge, the technical solution of this utility model is as follows:

[0035] The input end of this utility model conveyor line is connected to a buried first scraper conveyor, which is the existing sludge conveying scraper conveyor in the plant. The conveyor line includes a second scraper conveyor 2 and a screw conveyor system. The input and output ends of the second scraper conveyor 2 are connected to the first scraper conveyor and the screw conveyor system, respectively. A manual gate valve 1 is connected between the output end of the second scraper conveyor 2 and the screw conveyor system. The manual gate valve 1 controls the material flow rate. The operator can flexibly adjust the opening of the gate valve according to the actual production needs, thereby controlling the amount of powdery sludge entering the screw conveyor system. When it is necessary to stop feeding material to the screw conveyor system, the manual gate valve 1 can be closed to prevent the material from continuing to be conveyed, facilitating equipment maintenance and repair.

[0036] The screw conveyor system comprises several screw conveyors connected end-to-end in space. The discharge port of the last screw conveyor in the conveying direction is connected to the top of the silo 7. The sides of the silo 7 are fixed to the ground by raised supports. A discharge valve is installed at the bottom of the silo 7, and a vibrating motor is installed on the outer wall of the silo 7. When the vibrating motor is working, it generates high-frequency vibration. This vibration is transmitted throughout the entire silo 7. The powdery sludge adhering to the inner wall of the silo 7 is subjected to vibration, and the originally tightly adhered powdery sludge is loosened by the vibration. Under the action of gravity, the powdery sludge returns to the bottom of the silo 7, thus preventing the continuous accumulation of powdery sludge on the inner wall. For clumps of sludge that may clog the discharge port, the vibration generated by the vibrating motor will subject the clumps to constantly changing forces. This force can break down the internal structure of the clumps, causing them to gradually loosen. As the vibration continues, the loosened powdery sludge can be smoothly discharged through the discharge port, ensuring smooth discharge.

[0037] Each screw conveyor includes a conveying pipe, screw blades, and a drive motor. One end of the screw blade, located inside the conveying pipe, is connected to the drive motor. Since the device in this application is used to convey powdery sludge, to ensure smooth and unobstructed material transport, the screw blades are designed to be serrated or have blades evenly spaced along the thickness direction at the edge of the screw blade. Figure 5 The diagram shows a shafted screw conveyor. A serrated screw blade 54 is provided on the rotating shaft 53. The serrated edges can cut and break up the clumps of powdery sludge, so that the powdery sludge is conveyed in a more uniform state, preventing clumping and blockage.

[0038] In an optional embodiment, the hopper 7 is funnel-shaped with a flap at the top. One end of the flap is hinged to one side of the top of the hopper 7 and connected to a hydraulic push rod. The funnel-shaped hopper design facilitates the concentration and discharge of materials, reducing material residue within the hopper. The flap can be easily opened and closed by the hydraulic push rod. When material needs to be fed into the hopper 7, the hydraulic push rod pushes the flap open, allowing the material to smoothly enter the hopper; after feeding is complete, the hydraulic push rod retracts, closing the flap to prevent material leakage and dust dispersion, while also protecting the material from external environmental influences.

[0039] In an optional embodiment, a hole is provided on one side wall of the hopper 7, and a transparent viewing window 71 is installed thereon. The transparent viewing window 71 allows operators to observe the material condition in the hopper at any time, such as the material quantity, whether there are any problems such as clumping or blockage. By observing the viewing window, operators can take appropriate measures in a timely manner, such as adjusting equipment operating parameters, cleaning the hopper, etc., to ensure the normal operation of the production process.

[0040] In an optional embodiment, the screw conveyor system includes a first shaftless screw conveyor 3, an inclined conveying shafted screw conveyor unit, and a second shaftless screw conveyor 6 connected in sequence. The combined design of the entire screw conveyor system can adapt to complex conveying environments and achieve efficient and stable material conveying.

[0041] The first shaftless screw conveyor 3 is horizontally positioned. Its horizontal positioning allows for long-distance horizontal transport of powdery sludge, and its shaftless design effectively prevents material from entangled in the shaft, reducing equipment malfunctions.

[0042] The inclined conveyor screw conveyor unit comprises multiple first screw conveyors 4 and second screw conveyors 5 connected in sequence. The first screw conveyors 4 and second screw conveyors 5 are arranged at an incline according to the factory environment, lifting materials to a certain height through the angle of inclination to meet the production needs of different spatial layouts. The discharge port 41 of the first screw conveyor 4 is connected to the feed port 51 of the second screw conveyor 5 via a flange, and the discharge port 52 of the second screw conveyor 5 is connected to the feed port 61 of the second shaftless screw conveyor 6 via a flange.

[0043] The second shaftless screw conveyor 6 is inclined and connected to the material inlet on one side wall of the silo 7 to transport materials into the silo 7.

[0044] In an optional embodiment, the conveying line further includes a dust removal system, which comprises a dust collection hood, a dust collection duct, and a centrifugal fan. The dust collection hood is positioned above the input and output ends of the second scraper conveyor 2. One end of the dust collection duct is connected to the dust collection hood, and the other end is located inside the hopper 7. The dust collection duct is equipped with a centrifugal fan. During the conveying of powdery sludge, dust is generated, especially at the input and output ends of the second scraper conveyor 2. The dust removal system effectively solves this problem. The dust collection hood collects the dust generated at the input and output ends of the second scraper conveyor 2. The centrifugal fan then uses its suction to transport the dust along the dust collection duct into the hopper 7, reducing dust pollution to the working environment, protecting the health of operators, and meeting environmental protection requirements.

[0045] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

Claims

1. A conveying line for powdery sludge, wherein the input end of the conveying line is connected to a buried first scraper conveyor, characterized in that, The conveying production line includes a second scraper conveyor and a screw conveyor system. The input and output ends of the second scraper conveyor are connected to the first scraper conveyor and the screw conveyor system, respectively. A manual slide valve is connected between the output end of the second scraper conveyor and the screw conveyor system. The screw conveyor system includes several screw conveyors connected end to end in space. The discharge port of the screw conveyor at the end of the conveying direction is connected to the top of the silo. The two sides of the silo are fixed to the ground by lifting brackets. The bottom of the silo is equipped with a discharge valve. A vibration motor is installed on the outer wall of the silo. Each of the aforementioned screw conveyors includes a conveying pipe, screw blades, and a drive motor, with one end of the screw blade located inside the conveying pipe connected to the drive motor. The spiral blade has serrated edges, or the edge of the spiral blade has blades spaced at equal intervals in the thickness direction.

2. The powdered sludge conveying production line as described in claim 1, characterized in that, The hopper is funnel-shaped, and a flip cover is provided on the top of the hopper. One end of the flip cover is hinged to one side of the top of the hopper, and a hydraulic push rod is connected to the flip cover.

3. The powdered sludge conveying production line as described in claim 1, characterized in that, The silo has a hole on one side wall and a transparent viewing window installed thereon.

4. The powdered sludge conveying production line as described in claim 1, characterized in that, The screw conveyor system comprises a first shaftless screw conveyor, an inclined conveying screw conveyor unit with a shaft, and a second shaftless screw conveyor connected in sequence. The first shaftless screw press is set horizontally. The inclined conveyor screw conveyor unit consists of multiple inclined screw conveyors connected in sequence. The second shaftless screw conveyor is inclined and connected to the material inlet on one side wall of the silo.

5. The powdered sludge conveying production line as described in claim 1, characterized in that, The conveying production line also includes a dust removal system, which includes a dust collection hood, a dust removal pipe and a centrifugal fan. The dust collection hood is located above the input and output ends of the second scraper conveyor. One end of the dust removal pipe is connected to the dust collection hood, and the other end is located inside the hopper. The dust removal pipe is equipped with a centrifugal fan.

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