Feeding system of carbide slag cement production line

Abstract

The utility model provides a feeding system for a carbide slag cement production line, which is characterized in that material seal is generated through the design of a variable-diameter spiral blade of a feeder, heat is prevented from being dissipated outwards from the feeder, so that the problem of overhigh energy consumption of a drying crusher is solved, and the energy consumption of the production line is reduced. One end of the spiral conveyor is a discharge port and is used for being communicated with a drying crusher, the other end of the spiral conveyor is a feed port, a feeder is mounted on the feed port and comprises a feeding hopper, a rotating shaft capable of being driven to rotate is arranged in the feeding hopper, a spiral blade is arranged on the rotating shaft, and the spiral blade is connected with the feeding hopper. The outer diameter of the spiral blade is gradually reduced from top to bottom, and the diameter of the inner wall of the feeding hopper is gradually reduced from top to bottom.

Description

Technical Field

[0001] The utility model relates to the field of carbide slag cement production lines, and in particular to a feeding system for a carbide slag cement production line. Background Art

[0002] Carbide slag is a waste residue mainly composed of calcium hydroxide after the hydrolysis of calcium carbide to obtain acetylene gas. 1t of calcium carbide can generate more than 300kg of acetylene gas when added with water, and at the same time generate 10t of industrial waste liquid with a solid content of about 12%, commonly known as carbide slag slurry. Therefore, carbide slag has a certain viscosity. Carbide slag can be used to replace limestone to make cement, produce quicklime as raw material for calcium carbide, produce chemical products, produce building materials and be used for environmental treatment, etc.

[0003] In a carbide slag cement production line, carbide slag materials are conveyed into a hopper through a belt conveyor, and the carbide slag falls into a carbide slag drying crusher through the hopper. The carbide slag drying crusher crushes the carbide slag while drying the moisture to meet the requirements of cement production. In order to prevent the heat in the carbide slag drying crusher from escaping through the hopper and causing heat loss, a flap valve is installed in the hopper. When the carbide slag passes through the flap valve, the flap valve is opened by its weight and the carbide slag falls into the drying crusher. However, the flap valve leaks air severely, resulting in the heat in the drying crusher escaping through the gaps of the flap valve, thus leading to too high energy consumption of the drying crusher. Summary of the Utility Model

[0004] The utility model provides a feeding system for a carbide slag cement production line. By designing a variable-diameter spiral blade of a feeder to generate a material seal, heat dissipation from the feeder is avoided, thus solving the problem of too high energy consumption of the drying crusher and reducing the energy consumption of the production line.

[0005] The utility model is realized through the following technical solutions:

[0006] A feeding system for a carbide slag cement production line includes a horizontally distributed screw conveyor. One end of the screw conveyor is an outlet for connecting to a drying crusher, and the other end is an inlet.

[0007] A feeder is installed at the inlet. The feeder includes a feeding hopper. A rotatable shaft is arranged in the feeding hopper. A spiral blade is arranged on the shaft. The outer diameter of the spiral blade gradually decreases from top to bottom, and the inner diameter of the inner wall of the feeding hopper gradually decreases from top to bottom.

[0008] Furthermore, the gaps between the outer side of the spiral blade and the inner wall of the feeding hopper are evenly distributed up and down.

[0009] Furthermore, the lower end of the feeding hopper is connected to the inlet of the screw conveyor through a flexible hose;

[0010] An installation seat is provided on the outer wall of the feeding hopper, and the bottom of the installation seat is connected to the base frame of the feeding system of the carbide slag cement production line through a weighing sensor.

[0011] Furthermore, it further includes a feeding belt conveyor, and the discharging opening of the feeding belt conveyor is directly above the feeding opening of the feeding hopper.

[0012] Furthermore, a driving motor is provided at the top of the feeding hopper, and the output shaft of the driving motor is connected to the rotating shaft.

[0013] The present utility model is realized through the following technical solutions:

[0014] 1. The outer diameter of the spiral blade in the feeder gradually decreases from top to bottom, and the inner diameter of the feeding hopper gradually decreases from top to bottom. When carbide slag is fed and conveyed from top to bottom through the feeder, as the space gradually becomes smaller, a material seal is formed at the lower part of the feeder, avoiding heat dissipation from outside the feeder, thereby solving the problem of excessive energy consumption of the drying crusher and reducing the energy consumption of the production line.

[0015] The feeder conveys carbide slag to the spiral conveyor, and the spiral conveyor conveys carbide slag into the drying crusher. Since carbide slag has a certain viscosity, the spiral conveyor can achieve a fast feeding effect.

[0016] 2. An installation seat is provided on the outer wall of the feeding hopper, and the bottom of the installation seat is connected to the base frame of the feeding system of the carbide slag cement production line through a weighing sensor, which can adjust the rotation speed of the spiral blade according to the weight in the feeding hopper and adjust the feeding speed according to different material quantities, making it more flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the feeding system of the carbide slag cement production line described in the present utility model;

[0018] Figure 2 It is an internal schematic diagram of the feeder described in the present utility model;

[0019] In the figure: 1. Feeding belt conveyor, 2. Feeder, 21. Feeding hopper, 22. Rotating shaft, 23. Driving motor, 24. Spiral blade, 25. Installation seat, 26. Weighing sensor, 3. Spiral conveyor, 4. Drying crusher. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0021] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "front", "rear", "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0022] As Figure 1-2 shown, this embodiment discloses a feeding system for a carbide slag cement production line, which mainly includes a feeding belt conveyor 1, a feeder 2, a screw conveyor 3 and a drying crusher 4. Among them, the feeder 2 includes a feeding hopper 21, a rotating shaft 22 and a driving motor 23. The rotating shaft 22 is rotatably installed in the feeding hopper 21 through a bearing assembly. The driving motor 23 is installed on the outer side of the top of the feeding hopper 21. The driving motor 23 can be a conventional variable-speed motor. The output shaft of the driving motor 23 is connected to the top end of the rotating shaft 22 through a reducer, so as to drive the rotating shaft 22 to rotate through the driving motor 23.

[0023] A screw blade 24 is installed on the rotating shaft 22. The screw blade 24 adopts a variable diameter design. The outer diameter of the screw blade 24 gradually decreases from top to bottom. The inner wall diameter of the feeding hopper 21 gradually decreases from top to bottom. The gap between the outer side of the screw blade 24 and the inner wall of the feeding hopper 21 is evenly distributed up and down. In this embodiment, the gap is controlled within the range of 3-5 mm.

[0024] The top of the feeding hopper 21 has a feeding port. The feeding belt conveyor 1 is located above the feeder 2, and the discharging port of the feeding belt conveyor 1 is directly above the feeding port of the feeding hopper 21. The feeding belt conveyor 1 can convey carbide slag into the feeding port of the feeding hopper 21. The screw conveyor 3 is horizontally distributed below the feeder 2. The lower discharging port of the feeding hopper 21 is connected to the feeding port of the screw conveyor 3 through a flexible hose. The other end of the screw conveyor 3 is a discharging port and is connected to the drying crusher 4. In order to control the feeding speed of the feeder 2, mounting seats 25 are fixed around the outer wall of the feeding hopper 21, and a plurality of weighing sensors 26 are installed on the base frame of the feeding system for the carbide slag cement production line. The measuring points of the weighing sensors 26 are connected to the mounting seats 25 of the feeding hopper 21. The driving motor 23 can adjust the rotation speed of the screw blade 24 according to the weight in the feeding hopper 21 and adjust the feeding speed according to different material amounts, making it more flexible to use.

[0025] The specific working principle of the feeding system of the carbide slag cement production line in this embodiment is as follows:

[0026] The carbide slag is conveyed to the top of the feeder 2 through the feeding belt conveyor 1 and enters the feed inlet of the feeder 2. When the carbide slag is fed and conveyed from top to bottom through the feeder 2, the outer diameter of the spiral blade 24 in the feeder 2 gradually decreases from top to bottom, and the inner wall diameter of the feeding hopper 21 gradually decreases from top to bottom. As the space gradually decreases, a material seal is formed at the lower part of the feeder 2, avoiding the outward dissipation of heat from the feeder 2, thus solving the problem of excessive energy consumption of the drying crusher 4 and reducing the energy consumption of the production line; the carbide slag enters the screw conveyor 3 from the discharge port at the lower end of the feeder 2 and is dried and crushed by entering the drying crusher 4 through screw conveyance.

Claims

1. A feeding system for a carbide slag cement production line, including a horizontally distributed screw feeder, characterized in that, One end of the screw feeder is the discharge port and is used to communicate with the drying crusher, and the other end of the screw feeder is the feed port. A feeder is installed on the feed port. The feeder includes a feed hopper. A rotatable shaft is provided in the feed hopper. A spiral blade is provided on the shaft. The outer diameter of the spiral blade gradually decreases from top to bottom, and the inner wall diameter of the feed hopper gradually decreases from top to bottom.

2. The feeding system of the carbide slag cement production line according to claim 1, wherein, The gaps between the outer side of the spiral blade and the inner wall of the feed hopper are evenly distributed up and down.

3. The feeding system of the carbide slag cement production line according to claim 1, characterized in that, The lower end of the feed hopper is connected to the feed port of the screw feeder through a flexible hose. An installation seat is provided on the outer wall of the feed hopper. The bottom of the installation seat is connected to the base frame of the feeding system of the carbide slag cement production line through a weighing sensor.

4. The feeding system of the carbide slag cement production line according to claim 3, characterized in that, It further includes a feeding belt conveyor. The discharge port of the feeding belt conveyor is directly above the feed port of the feed hopper.

5. The feeding system of the carbide slag cement production line according to any one of claims 1-4, characterized in that, A driving motor is provided at the top of the feed hopper. The output shaft of the driving motor is connected to the shaft.

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