Exhaust device of pipeline mixer

Abstract

The utility model relates to an exhaust device of a pipeline mixer, which aims to optimize bubble discharge in the feeding process of a thickener, the exhaust device is mounted between the thickener and the pipeline mixer on a feeding pipe of the thickener, a mounting hole is arranged on the outer peripheral surface of the rear end of a flange pipe of the feeding pipe of the thickener, the flange pipe is obliquely arranged, and an exhaust pipe is connected through the mounting hole. The device further comprises a fluid back-flushing pipe, the front section of the back-flushing pipe is connected into the exhaust pipe, the rear section of the back-flushing pipe is provided with a quick connector, an external water source can be conveniently connected into the back-flushing pipe, and therefore the interior of the exhaust pipe is flushed regularly, and blocking is effectively prevented. Compared with a traditional exhaust hole, the device has the advantages that the air displacement is greatly increased, the problems of lubrication and heat dissipation of the mechanical seal caused by air accumulation are solved, the damage risk of the mechanical seal is remarkably reduced, and the efficiency and stability of the thickener in the feeding process are improved.

Description

Technical Field

[0001] This utility model relates to the field of mining equipment technology, specifically to a pipeline mixer exhaust device. Background Technology

[0002] In tailings piping systems, the pipe mixer is usually installed at the top. Given the large flow rate of the slurry and the presence of a large number of air bubbles and impurities, the original design was to open small holes on the flange near the mechanical seal for venting. However, due to the large volume of gas, these small holes cannot expel all the gas in time. At the same time, impurities and foreign objects in the tailings often clog these small vent holes, which causes air to accumulate at the mechanical seal, creating an isolation between the mechanical seal and the slurry. This, in turn, affects the lubrication and heat dissipation functions of the mechanical seal, ultimately causing damage to the mechanical seal.

[0003] Therefore, we need to make technical improvements to address the above issues in order to meet user needs. Utility Model Content

[0004] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing an exhaust device that allows for automatic venting during the feeding of a thickener, and the vented gas can still enter the mixer in the thickener's internal pipeline.

[0005] The technical problem to be solved by this utility model is achieved through the following technical solution: a pipeline mixer exhaust device, which is installed between the pipeline mixer and the thickener feed pipe, comprising:

[0006] The mounting hole is located on the outer circumferential surface of the top of the thickener feed pipe, which is provided with a flange for mounting the pipe mixer. The flange is inclined, with the side of the flange forming an acute angle with the thickener feed pipe being the front outer circumferential surface of the flange, and the side of the flange forming an obtuse angle with the thickener feed pipe being the rear outer circumferential surface of the flange. The mounting hole is located on the rear outer circumferential surface of the flange.

[0007] The exhaust pipe is provided with a front section, a middle section and a rear section in sequence according to the airflow direction. The front section is fixedly connected to the mounting hole and the rear section is connected to the top of the thickener.

[0008] The fluid backwash pipe has a front section and a rear section arranged sequentially in the direction of water flow. One end of the front section is connected to the middle section of the exhaust pipe, and the other end is connected to the rear section. One end of the rear section is connected to the front section, and the other end is equipped with a quick connector. Water can be supplied to the fluid backwash pipe from an external water supply pipe to flush the inside of the exhaust pipe.

[0009] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the exhaust device for the pipe mixer described above, wherein the axis of the front section of the exhaust pipe is perpendicular to the axis of the flange pipe.

[0010] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the exhaust device for a pipe mixer described above, wherein the middle section of the exhaust pipe is horizontally arranged.

[0011] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the exhaust device for a pipe mixer described above, wherein the exhaust pipe is vertically arranged at the rear.

[0012] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the exhaust device of the above-mentioned pipe mixer, wherein the inner and outer diameters of the front section, middle section and rear section of the exhaust pipe are all the same.

[0013] The technical problem to be solved by this utility model can also be achieved through the following technical solution: In the above-mentioned pipeline mixer exhaust device, the front end of the backflushing pipe near the front end of the exhaust pipe is vertically inclined downwards, and its inclination angle is an acute angle.

[0014] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the exhaust device for a pipe mixer described above, wherein the rear section of the backflushing pipe is horizontally arranged.

[0015] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the exhaust device for a pipe mixer described above, wherein the inner and outer diameters of the front and rear sections of the backflush pipe are the same.

[0016] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0017] (1) By opening a mounting hole on the flange pipe used to install the pipeline mixer and installing an exhaust pipe on the mounting hole that connects the outlet to the top of the thickener, the air bubbles generated during the feeding of the thickener can be naturally discharged into the thickener. Compared with the previous exhaust holes, the exhaust volume is larger, which avoids the air accumulation at the mechanical seal caused by poor exhaust, which completely isolates the mechanical seal from the slurry, resulting in the mechanical seal being unable to be lubricated and dissipated, thus causing damage to the mechanical seal.

[0018] (2) A fluid backflush pipe is also added at the exhaust pipe, which can periodically flush water into the fluid backflush pipe to backwash the inside of the exhaust pipe and avoid the potential for blockage caused by excessive impurities accumulating inside. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the main structure of this utility model.

[0020] Reference numerals: 1. Thickener; 2. Thickener feed pipe; 3. Pipeline mixer; 4. Mounting hole; 5. Flange pipe; 51. Front outer peripheral surface; 52. Rear outer peripheral surface; 6. Mechanical seal; 7. Front section of exhaust pipe; 8. Middle section of exhaust pipe; 9. Rear section of exhaust pipe; 10. Front section of backflushing pipe; 11. Rear section of backflushing pipe; 12. Quick coupling. Detailed Implementation

[0021] The specific technical solutions of this utility model are further described below with reference to the accompanying drawings, so as to enable those skilled in the art to further understand this utility model, without constituting a limitation on its rights.

[0022] Example 1, referring to Figure 1 A pipe mixer exhaust device is installed between a thickener 1 and a pipe mixer 3 on a thickener feed pipe 2, and includes:

[0023] Mounting hole 4, the diameter of mounting hole 4 is about 60mm, and its size can be selected according to the usage requirements. The top outer peripheral surface of thickener feed pipe 2 has flange pipe 5 for installing pipeline mixer 3. Flange pipe 5 is inclined. The side of flange pipe 5 that forms an acute angle with thickener feed pipe 2 is the front outer peripheral surface 51 of flange pipe 5, and the side of flange pipe 5 that forms an obtuse angle with thickener feed pipe 2 is the rear outer peripheral surface 52 of flange pipe 5. The mounting hole 4 is opened on the rear outer peripheral surface 52 of flange pipe 5.

[0024] It should be noted that the mounting hole 4 is designed with a large diameter hole, which allows for faster venting compared to existing technologies, thus avoiding the situation where the mechanical seal 6 between the pipe mixer 3 and the flange pipe 5 is isolated from the fluid for a long time.

[0025] The exhaust pipe is provided with a front section 7, a middle section 8 and a rear section 9 arranged in sequence according to the airflow direction. The front section 7 is fixedly connected to the mounting hole 4. The rear section 9 is connected to the top of the thickener 1. The exhaust pipe can exhaust a large amount of gas entrained in the slurry during the feeding of the thickener 1, and the exhaust gas will autonomously enter the thickener 1.

[0026] The axis of the front section 7 of the exhaust pipe is perpendicular to the axis of the flange pipe 5, the middle section 8 of the exhaust pipe is horizontally arranged, and the rear section 9 of the exhaust pipe is vertically arranged. The inner and outer diameters of the front section 7, the middle section 8 and the rear section 9 of the exhaust pipe are all the same.

[0027] The fluid backwash pipe has a front section 10 and a rear section 11 arranged sequentially in the direction of water flow. One end of the front section 10 is connected to the middle section 8 of the exhaust pipe, and the other end is connected to the rear section 11. One end of the rear section 11 is connected to the front section 10, and the other end is equipped with a quick connector 12. Water can be supplied to the fluid backwash pipe from an external water supply pipe (not shown) to flush the inside of the exhaust pipe. The front section 10 of the backwash pipe is vertically inclined downwards at the end near the front section 7 of the exhaust pipe, with an acute angle of inclination. The rear section 11 of the backwash pipe is horizontally arranged. The inner and outer diameters of the front section 10 and the rear section 11 of the backwash pipe are the same.

[0028] It should be noted that the fluid backwash pipe can backwash the inside of the exhaust pipe through an external water supply pipe (not shown in the figure). The front section 10 of the backwash pipe is inclined downwards, so that the trajectory of the water flow is at an acute angle to the horizontal plane. As a result, most of the water flow will enter the front section 7 of the exhaust pipe through the middle section 8 of the exhaust pipe in sequence, and finally enter the flange pipe 5. This allows the deposits adhering to the flange pipe 5, the front section 7 of the exhaust pipe, and the middle section 8 of the exhaust pipe to be flushed off. A small portion of the water flow will enter the thickener 1 through the rear section 9 of the exhaust pipe, thus minimizing the possibility of blockage in the exhaust pipe.

Claims

1. A pipe mixer exhaust device, characterized in that: It is installed between the thickener and the thickener feed pipe, and includes: The mounting hole is located on the outer circumferential surface of the top of the thickener feed pipe, which is provided with a flange for mounting the pipe mixer. The flange is inclined, with the side of the flange forming an acute angle with the thickener feed pipe being the front outer circumferential surface of the flange, and the side of the flange forming an obtuse angle with the thickener feed pipe being the rear outer circumferential surface of the flange. The mounting hole is located on the rear outer circumferential surface of the flange. The exhaust pipe is provided with a front section, a middle section and a rear section in sequence according to the airflow direction. The front section is fixedly connected to the mounting hole and the rear section is connected to the top of the thickener. The fluid backwash pipe has a front section and a rear section arranged sequentially in the direction of water flow. One end of the front section is connected to the middle section of the exhaust pipe, and the other end is connected to the rear section. One end of the rear section is connected to the front section, and the other end is equipped with a quick connector. Water can be supplied to the fluid backwash pipe from an external water supply pipe to flush the inside of the exhaust pipe.

2. The exhaust device for a pipe mixer according to claim 1, characterized in that: The axis of the front section of the exhaust pipe is perpendicular to the axis of the flange pipe.

3. The exhaust device for a pipe mixer according to claim 1, characterized in that: The middle section of the exhaust pipe is horizontally positioned.

4. The exhaust device for a pipe mixer according to claim 1, characterized in that: The rear section of the exhaust pipe is vertically arranged.

5. A pipe mixer exhaust device according to any one of claims 1-4, characterized in that: The inner and outer diameters of the front, middle, and rear sections of the exhaust pipe are all the same.

6. The exhaust device for a pipe mixer according to claim 1, characterized in that: The front end of the backflush pipe, near the front end of the exhaust pipe, is vertically inclined downwards at an acute angle.

7. The exhaust device for a pipe mixer according to claim 1, characterized in that: The rear section of the backflush pipe is horizontally positioned.

8. A pipe mixer exhaust device according to any one of claims 6-7, characterized in that: The inner and outer diameters of the front and rear sections of the backflush tube are the same.

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