A cement raw material homogenization device

Abstract

This invention discloses a cement raw meal homogenization device in the field of cement raw meal homogenization technology, including a screw conveyor and a homogenization tank. A feeding mechanism is connected to the end of a feeding pipe, which includes a feeding branch pipe, a permanent magnet, and an electromagnet. The feeding branch pipe is connected to the end of the feeding pipe, and a bending section is provided between the feeding branch pipe and the feeding pipe for the feeding branch pipe to bend vertically. A permanent magnet is fixed on the feeding branch pipe, and an electromagnet is located at the lower end of the feeding pipe, with the electromagnet and permanent magnet correspondingly arranged. A controller is provided on the homogenization tank to periodically change the magnitude and direction of the current flowing through the electromagnet. A vent pipe surrounds the homogenization tank, through which compressed air is introduced, and the vent pipe is connected to an outlet pipe extending into the homogenization tank. This invention allows for a variable cement raw meal feeding angle and achieves good homogenization effect.

Description

Technical Field

[0001] This invention relates to the field of cement raw material homogenization technology, and particularly to a cement raw material homogenization device. Background Technology

[0002] Raw meal homogenization is an essential process in the production of dry-process cement and expansive clinker. The purpose of raw meal homogenization is to reduce fluctuations between various components in the raw meal, so that the raw meal exiting the mill is further homogenized before entering the kiln, thereby ensuring the quality of the raw meal entering the kiln and achieving the goal of stabilizing the overall quality of the product and increasing output.

[0003] Currently, most cement raw material homogenization devices use compressed air mixing chambers for homogenization. These devices typically employ a fixed-angle feeding method, which negatively impacts the homogenization effect and therefore requires improvement. Summary of the Invention

[0004] The main objective of this invention is to provide a cement raw material homogenization device to solve the problem mentioned in the background art where unreasonable feeding methods affect the homogenization effect.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A cement raw material homogenization device includes a screw conveyor and a homogenization tank. The screw conveyor has a feeding pipe at its upper end, which extends vertically downwards into the homogenization tank. The homogenization tank has a discharge port at its bottom. A feeding mechanism is connected to the end of the feeding pipe, which includes a feeding branch pipe, a permanent magnet, and an electromagnet. The feeding branch pipe is connected to the end of the feeding pipe, and a bending section is provided between the feeding branch pipe and the feeding pipe for the feeding branch pipe to bend vertically. A permanent magnet is fixed to the feeding branch pipe, and an electromagnet is located at the lower end of the feeding pipe, with the electromagnet corresponding to the permanent magnet. A controller is provided on the homogenization tank to periodically change the magnitude and direction of the current flowing through the electromagnet. A vent pipe surrounds the homogenization tank, through which compressed air is introduced, and the vent pipe is connected to an outlet pipe extending into the homogenization tank.

[0007] Furthermore, the bottom of the homogenization tank is equipped with a horizontally arranged stirring mechanism, which includes a motor, a stirring shaft, and stirring blades. The motor's power output shaft rotates through the homogenization tank and is connected to the stirring shaft, on which stirring blades are mounted.

[0008] Furthermore, there are two symmetrical feed branches, with the permanent magnets on each feed branch having opposite polarities facing the electromagnet. This arrangement is designed so that when the direction of the current flowing through the electromagnet changes, it can simultaneously attract or repel the feed branches on both sides, ensuring that the feed branches on both sides oscillate at the same rhythm. The electromagnet's core is horizontally positioned, and the electromagnet is powered by a battery.

[0009] Furthermore, the vent pipe is connected to an air pump, and there are three sets of vent pipes arranged in an equilateral triangle.

[0010] Furthermore, an exhaust pipe is provided at the top of the homogenization tank.

[0011] This invention also includes other components that enable the cement raw material homogenization device to function properly, and these devices or components all employ conventional techniques in the art. Furthermore, devices and components not limited in this invention all employ conventional techniques in the art, such as the screw conveyor and storage battery mentioned in this application. In specific implementation, appropriate equipment or component models can be selected according to the specific working scenario.

[0012] The working principle of this invention is as follows: A screw conveyor injects the cement raw material to be homogenized into the feeding pipe, and the cement raw material enters the feeding branch pipes on both sides along the feeding pipe. The controller periodically changes the magnitude and direction of the current flowing through the electromagnet, and the electromagnet intermittently attracts and repels the permanent magnets on both sides, allowing the feeding branch pipes to swing up and down regularly, and the feeding angle of the cement raw material also changes accordingly. At the same time, an air pump connected to the air pipe continuously sprays compressed air for stirring into the homogenization tank from the air outlet pipe. In addition, a stirring mechanism is also provided at the bottom of the homogenization tank, which further homogenizes the cement raw material through rotating stirring blades, improving the homogenization effect.

[0013] Compared with the prior art, the present invention has the following beneficial effects: the feeding angle of cement raw materials is variable and the homogenization effect is good: the bending angle of the feeding branch pipe is changed by the electromagnetic force between the electromagnet and the permanent magnet, thereby changing the feeding angle of the cement raw materials. At the same time, the homogenization is carried out with the help of compressed air and stirring blades, resulting in a good homogenization effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a cement raw material homogenization device according to the present invention.

[0015] Figure 2 This is a schematic diagram of the feeding mechanism of the present invention.

[0016] Figure 3 This is a schematic diagram showing the distribution of the air outlets of the present invention.

[0017] In the diagram: 1. Screw conveyor; 2. Homogenizing tank; 21. Exhaust pipe; 22. Discharge port; 3. Feeding pipe; 4. Feeding mechanism; 41. Feeding branch pipe; 42. Permanent magnet; 43. Bending section; 44. Electromagnet; 5. Vent pipe; 6. Exhaust pipe; 7. Stirring mechanism; 8. Controller. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Example:

[0020] like Figures 1-3 As shown, a cement raw material homogenization device includes a screw conveyor 1 and a homogenization tank 2. The screw conveyor 1 has a feeding pipe 3 at its upper end, which extends vertically downwards into the homogenization tank 2. The homogenization tank 2 has a discharge port 22 at its bottom. The feeding pipe 3 is connected to a feeding mechanism 4 at its end. The feeding mechanism 4 includes a feeding branch pipe 41, a permanent magnet 42, and an electromagnet 44. The feeding pipe 3 is connected to the feeding branch pipe 41 at its end, and a bending section 43 is provided between the feeding branch pipe 41 and the feeding pipe 3 for bending the feeding branch pipe 41 vertically. The permanent magnet 42 is fixed on the feeding branch pipe 41, and the electromagnet 44 is located at the lower end of the feeding pipe 3, with the electromagnet 44 corresponding to the permanent magnet 42. The homogenization tank 2 is equipped with a controller 8, which is used to periodically change the magnitude and direction of the current flowing through the electromagnet 44. The homogenizing tank 2 is surrounded by a vent pipe 5, which is filled with compressed air and connected to an outlet pipe 6 that extends into the homogenizing tank 2.

[0021] In addition, a horizontally arranged stirring mechanism 7 is provided at the bottom of the homogenization tank 2. The stirring mechanism 7 includes a motor, a stirring shaft, and stirring blades. The power output shaft of the motor rotates through the homogenization tank 2 and is connected to the stirring shaft, on which stirring blades are mounted. There are two feed branch pipes 41, which are symmetrical to each other. The permanent magnets 42 on each feed branch pipe 41 face opposite polarities toward the electromagnet 44. The iron core of the electromagnet 44 is horizontally arranged, and the electromagnet 44 is powered by a battery. The vent pipe 5 is connected to an air pump, and there are three sets of vent pipes 6 arranged in an equilateral triangle. An exhaust pipe 21 is provided at the top of the homogenization tank 2.

[0022] The working principle of the cement raw material homogenization device of the present invention is as follows: A screw conveyor 1 injects the cement raw material to be homogenized into a feeding pipe 3, which then enters the feed branch pipes 41 on both sides. A controller 8 periodically changes the magnitude and direction of the current flowing through an electromagnet 44. The electromagnet 44 intermittently attracts and repels the permanent magnets 42 on both sides, causing the feed branch pipes 41 to swing up and down rhythmically, thus changing the feeding angle of the cement raw material. Simultaneously, an air pump connected to a vent pipe 5 continuously injects compressed air for stirring into the homogenization tank 2 from an air outlet pipe 6. Furthermore, a stirring mechanism 7 is provided at the bottom of the homogenization tank 2, which further homogenizes the cement raw material through rotating stirring blades, improving the homogenization effect.

[0023] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope of the present invention.

Claims

1. A cement raw material homogenization device, comprising a screw conveyor (1) and a homogenization tank (2), wherein the upper end of the screw conveyor (1) is provided with a feeding pipe (3), the feeding pipe (3) extends vertically downward into the homogenization tank (2), and the bottom of the homogenization tank (2) is provided with a discharge port (22), characterized in that: The feeding pipe (3) is connected to a feeding mechanism (4) at its end. The feeding mechanism (4) includes a feeding branch pipe (41), a permanent magnet (42), and an electromagnet (44). The feeding pipe (3) is connected to a feeding branch pipe (41) at its end. A bending section (43) is provided between the feeding branch pipe (41) and the feeding pipe (3) for the feeding branch pipe (41) to bend up and down. A permanent magnet (42) is fixed on the feeding branch pipe (41). The feeding pipe (3) is connected to a feeding mechanism (44). The lower end is provided with an electromagnet (44), which is correspondingly arranged with the permanent magnet (42); the homogenizing tank (2) is provided with a controller (8), which is used to periodically change the magnitude and direction of the current flowing through the electromagnet (44); the homogenizing tank (2) is surrounded by a vent pipe (5), which is filled with compressed air and connected to an outlet pipe (6) extending into the homogenizing tank (2).

2. The cement raw material homogenization device according to claim 1, characterized in that: The homogenization tank (2) is provided with a horizontally arranged stirring mechanism (7) at the bottom. The stirring mechanism (7) includes a motor, a stirring shaft and stirring blades. The power output shaft of the motor rotates through the homogenization tank (2) and is connected to the stirring shaft. Stirring blades are installed on the stirring shaft.

3. The cement raw material homogenization device according to claim 1, characterized in that: There are two feed branch pipes (41) that are symmetrical to each other. The permanent magnets (42) on each feed branch pipe (41) have opposite polarities on the side facing the electromagnet (44). The iron core of the electromagnet (44) is set horizontally, and the electromagnet (44) is powered by a storage battery.

4. The cement raw material homogenization device according to claim 1, characterized in that: The ventilation pipe (5) is connected to an air pump, and the air outlet pipe (6) consists of three sets arranged in an equilateral triangle.

5. The cement raw material homogenization device according to claim 1, characterized in that: The homogenization tank (2) is equipped with an exhaust pipe (21) at its upper end.

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