Pipeline exhaust device of filling slurry self-flow conveying system
By designing the self-flow conveying system pipeline exhaust device of the filling slurry in the mine tailings concentration filling system, the gas discharge device of different heights and exhaust devices combined with ultrasonic liquid level detection, the air column and return of the slurry in the filling pipeline are solved. The flow problem improves operation safety and environmental sanitation, and realizes stable conveying and precise detection of slurry.
Patent Information
- Application Number
- CN202421109161.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-21
AI Technical Summary
During the mining tailings concentration filling process, the self-flow filling system has broken materials, air columns or air bubbles in the filling pipeline due to changes in the underground environment and unstable sand discharge flow, resulting in increased air pressure, which may lead to material Slurry reflux affects the working environment and safety, and there is a problem of slurry waste.
Design a pipeline exhaust device for filling slurry self-flow conveying system. By setting up an exhaust device connected to the stirring device with different heights, the formation of air columns or air bubbles can be reduced, and when necessary, the spraying and return of materials will be avoided. To prevent high-pressure gas from overflowing, ultrasonic liquid level detection device is used to accurately detect the slurry state.
Effectively reduce the air column or air bubbles during the slurry during the transport process, avoid slurry reflux, ensure the operating environment and personnel safety, reduce slurry waste, and accurately monitor the slurry status through the liquid level detection device and sampling.
Smart Images
Figure CN222208003U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mine tailings concentration and filling, in particular to a pipeline exhaust device of a filling slurry gravity conveying system. Background Art
[0002] For the gravity filling system, the filling slurry prepared by the mixer generally enters the filling pipe (borehole) through the discharge port of the auxiliary barrel in the mixer, or enters the filling pipe through the drilled hopper set at the top of the filling pipe. Affected by the constantly changing filling area underground and the unstable sand discharge flow of the thickener, the slurry flow in the mixer and the filling pipe is in an unstable state, which causes the filling slurry to be broken in the filling pipe, that is, to form air columns or air bubbles. As the air column or air bubble gradually grows, the air pressure in the filling pipe also continues to increase. When the air pressure in the filling pipe is greater than the pressure of the slurry, it will cause the slurry to be sprayed back in the mixer or filling port. In the case of a deep filling pipeline (filling pipeline depth > 300m), the back slurry pressure will also be very large, which can easily cause the filling slurry in the filling pipeline to spray upward at high speed, and then quickly spray out from the auxiliary barrel of the mixer and splash around in the preparation plant. This process will generate a lot of noise, which not only greatly destroys the cleanliness of the working environment, but also seriously threatens the physical and mental safety of the staff. More importantly, it also causes huge waste of filling slurry.
[0003] In view of this, it is necessary to design a pipeline exhaust device for a filling slurry gravity conveying system to solve the above problems. Utility Model Content
[0004] In view of the defects of the above-mentioned prior art, the purpose of the utility model is to provide a pipeline exhaust device for a gravity conveying system of filling slurry, which reduces the formation of air columns or air bubbles during the transportation of slurry and avoids the return of material during spraying by connecting sand release pipes at different heights to the auxiliary barrel next to the stirring device and the exhaust device arranged above the filling pipeline.
[0005] To achieve the above-mentioned purpose, the utility model provides a pipeline exhaust device for a filling slurry gravity conveying system, comprising: a sub-barrel arranged on one side of a stirring device and connected to the stirring device, a sand release pipe connected to the sub-barrel at one end, and an exhaust device connected to the other end of the sand release pipe; the sub-barrel is located between the stirring device and the sand release pipe; the bottom end of the exhaust device is connected to a filling pipeline; and the sand release pipe is connected to one side of the exhaust device.
[0006] Furthermore, the exhaust device includes an exhaust pipe whose bottom end is connected to the filling pipe and an exhaust cap connected to the top end of the exhaust pipe.
[0007] Furthermore, the height of the exhaust pipe is at least 2 m higher than the height of the stirring barrel in the stirring device.
[0008] Furthermore, the bottom end of the exhaust pipe and the bottom end of the stirring barrel in the stirring device are located at the same horizontal height.
[0009] Furthermore, the exhaust cap comprises a cap pipe opening whose bottom end is connected to the exhaust pipe and a cap brim connected to the top end of the cap pipe opening.
[0010] Furthermore, the bottom end of the cap pipe opening is a grille grid; the top end of the cap pipe opening is a louver baffle.
[0011] Furthermore, the sand discharge pipe comprises a high-level sand discharge pipe and a low-level sand discharge pipe, each of which connects the auxiliary barrel with the exhaust pipe respectively.
[0012] Furthermore, the horizontal height of the high-level sand discharge pipe is higher than that of the low-level sand discharge pipe.
[0013] Furthermore, the pipeline exhaust device of the filling slurry gravity conveying system also includes: a liquid level detection device for detecting the state of the slurry in the auxiliary barrel.
[0014] Furthermore, the liquid level detection device includes an ultrasonic liquid level meter arranged on the barrel wall of the auxiliary barrel and a control device used in conjunction with the ultrasonic liquid level meter.
[0015] The beneficial effects of the utility model are:
[0016] 1. The utility model provides a pipeline exhaust device for the gravity conveying system of the filling slurry. By setting sand discharge pipes at different heights, the auxiliary barrel next to the stirring device is connected to the exhaust device arranged above the filling pipeline; wherein the exhaust device includes an exhaust pipe whose bottom end is connected to the filling pipeline and an exhaust cap connected to the top of the exhaust pipe; during normal filling operation, a high-level sand discharge pipe is used to make the movement path of the filling slurry in the auxiliary barrel into the filling pipeline longer, so that the filling slurry moves in the exhaust pipe for a longer time, making the filling slurry more compact; when the filling is completed and the mixer needs to be cleaned, a low-level sand discharge pipe is used; in this way, the air column or air bubble formed during the slurry transportation process is reduced, and the return of the slurry is avoided. In addition, if the slurry backflow occurs, the exhaust device is used for exhaust and can also prevent the overflow of high-pressure gas slurry spraying, thereby ensuring the safety of surrounding workers and the environmental sanitation of the filling operation site.
[0017] 2. The pipeline exhaust device of the gravity conveying system of the filling slurry provided by the utility model can more accurately detect the liquid level of the filling slurry in the sub-barrel by setting a liquid level detection device for detecting the state of the slurry in the sub-barrel, and is also convenient for observing the conveying state of the filling slurry at any time and facilitating sampling. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 The utility model provides a schematic diagram of the structure of the pipeline exhaust device of the filling slurry gravity conveying system.
[0019] Figure 2 The utility model provides a schematic diagram of a grille grid and a louver baffle in an exhaust cap of an exhaust device in a pipeline exhaust device of a filling slurry gravity conveying system.
[0020] Reference numerals
[0021] 11-mixing barrel; 12-mixing motor; 2-auxiliary barrel; 31-exhaust pipe; 32-exhaust cap; 321-cap pipe opening; 3211-grid grid; 3212-louver baffle; 322-cap brim; 41-high material level sand release pipe; 42-low material level sand release pipe; 5-filling pipe; 61-ultrasonic level meter; 62-control device. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.
[0023] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the drawings, while other details that are not closely related to the present invention are omitted. In addition, it should also be noted that the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0024] like Figures 1-2As shown, the utility model provides a pipeline exhaust device for a filling slurry gravity conveying system, comprising: a sub-barrel 2 arranged at one side of a stirring device and connected to the stirring device, a sand release pipe connected to the sub-barrel 2 at one end, and an exhaust device connected to the other end of the sand release pipe; the sub-barrel 2 is located between the stirring device and the sand release pipe; the bottom end of the exhaust device is connected to a filling pipeline 5; the sand release pipe is connected to one side of the exhaust device; the extension direction of the sand release pipe (i.e., the flow direction of the slurry in the sand release pipe) is perpendicular to the extension direction of the exhaust device (i.e., the flow direction of the gas in the exhaust pipe 31). The exhaust device includes an exhaust pipe 31 whose bottom end is connected to the filling pipe 5, and an exhaust cap 32 connected to the top of the exhaust pipe 31; the height of the exhaust pipe 31 is at least 2m higher than the height of the mixing barrel 11 in the mixing device; the bottom of the exhaust pipe 31 is at the same level as the bottom of the mixing barrel 11 in the mixing device; the exhaust cap 32 includes a cap pipe opening 321 whose bottom end is connected to the exhaust pipe 31, and a brim 322 connected to the top of the cap pipe opening 321; the bottom of the cap pipe opening 321 is a grid grid 3211; the top of the cap pipe opening 321 is a louver baffle 3212; the brim 322 is provided with holes for exhaust. The sand discharge pipe includes a high-level sand discharge pipe 41 and a low-level sand discharge pipe 42, each of which connects the auxiliary barrel 2 to the exhaust pipe 31; the high-level sand discharge pipe 41 is higher than the low-level sand discharge pipe 42.
[0025] With such a configuration, during normal filling operation, a high-level sand discharge pipe 41 is used, so that the movement path of the filling slurry in the auxiliary barrel 2 into the filling pipe 5 is longer, and the filling slurry moves in the exhaust pipe 31 for a longer time, making the filling slurry more compact. When the filling is completed and the stirring device needs to be cleaned, a low-level sand discharge pipe 42 is used; thus, the air column or air bubble formed during the transportation of the slurry is reduced, and the return of the slurry is avoided. In addition, if the slurry backflow occurs, the exhaust device is used for exhaust and can also prevent the overflow of high-pressure gas slurry, thereby ensuring the safety of surrounding workers and the environmental sanitation of the filling operation site.
[0026] Specifically, in some embodiments of the present invention, the pipeline exhaust device of the filling slurry gravity conveying system further includes: a liquid level detection device for detecting the state of the slurry in the auxiliary barrel 2. The liquid level detection device includes an ultrasonic level meter 61 arranged on the barrel wall of the auxiliary barrel 2 and a control device 62 used in conjunction with the ultrasonic level meter 61.
[0027] Such an arrangement can avoid the situation where the capacity of the filling slurry is misjudged due to the unstable turbulence of the slurry surface in the mixing barrel 11 due to the action of the mixing blades in the mixing barrel 11 in the stirring device. By testing the more stable slurry state in the sub-barrel 2, the liquid level of the filling slurry in the sub-barrel 2 can be detected more accurately, and it is also convenient to observe the conveying status of the filling slurry displayed by the video in the liquid level detection device at any time, and to facilitate sampling.
[0028] The pipeline exhaust device of the filling slurry gravity conveying system provided by the utility model is specifically described below in conjunction with the embodiments.
[0029] Example
[0030] like Figures 1-2 As shown, this embodiment provides a pipeline exhaust device for a filling slurry gravity conveying system, comprising: a sub-barrel 2 arranged on one side (right side) of a stirring device and connected to a stirring barrel 11 in the stirring device, a sand release pipe connected to the sub-barrel 2 at one end (left end), an exhaust device connected to the other end (right end) of the sand release pipe, and a liquid level detection device for detecting the state of slurry in the sub-barrel 2; the sub-barrel 2 is located between the stirring device and the sand release pipe; the bottom end of the exhaust device is connected to a filling pipeline 5; the sand release pipe (the right end) is connected to one side (left side) of the exhaust device; the extension direction of the sand release pipe (i.e., the flow direction of slurry in the sand release pipe) is perpendicular to the extension direction of the exhaust device (i.e., the flow direction of gas in the exhaust pipe 31).
[0031] The stirring device includes a stirring barrel 11 and a stirring motor 12 used in conjunction with the stirring barrel 11 and located above the stirring barrel 11 .
[0032] The liquid level detection device includes an ultrasonic liquid level meter 61 arranged on the upper barrel wall of the auxiliary barrel 2 and a control device 62 used in conjunction with the ultrasonic liquid level meter 61; the lower end of the auxiliary barrel 2 is provided with a first switch valve for transporting the slurry in the mixing barrel 11 to the auxiliary barrel 2.
[0033] The exhaust device includes an exhaust pipe 31 whose bottom end is connected to the filling pipe 5, and an exhaust cap 32 connected to the top of the exhaust pipe 31; the height of the exhaust pipe 31 is 2m higher than the height of the mixing barrel 11 in the mixing device; the bottom end of the exhaust pipe 31 and the bottom ends of the mixing barrel 11 and the auxiliary barrel 2 in the mixing device are all located at the same horizontal height; the exhaust cap 32 includes a cap pipe opening 321 whose bottom end is connected to the exhaust pipe 31, and a brim 322 connected to the top of the cap pipe opening 321; the bottom end of the cap pipe opening 321 is a grid 3211 with a spacing of 3mm×3mm; the top end of the cap pipe opening 321 is a louver baffle 3212 with a spacing of 3mm; the brim 322 is provided with holes that can be used for exhaust.
[0034] The sand release pipes include a high-level sand release pipe 41 and a low-level sand release pipe 42, which respectively connect the auxiliary barrel 2 and the exhaust pipe 31; the horizontal height of the high-level sand release pipe 41 is higher than that of the low-level sand release pipe 42; the low-level sand release pipe 42 is located at 1 / 8 of the height of the auxiliary barrel 2; the high-level sand release pipe 41 and the low-level sand release pipe 42 are arranged in parallel; a second switch valve is arranged in the high-level sand release pipe 41, and a third switch valve is arranged in the low-level sand release pipe 42.
[0035] The following is a description of the working process of a pipeline exhaust device for a filling slurry gravity conveying system provided by the utility model:
[0036] like Figures 1-2 As shown, after the slurry in the stirring device is stirred to the standard, it enters the auxiliary barrel 2 through the first switch valve at the lower end of the auxiliary barrel 2. When the filling operation is normal, the second switch valve in the high-level sand discharge pipe 41 is opened, and the third switch valve in the low-level sand discharge pipe 42 is closed, so that the movement path of the filling slurry in the auxiliary barrel 2 into the filling pipeline 5 is longer, and the filling slurry moves in the exhaust pipe 31 for a longer time, so that the filling slurry is more compact. When the filling is completed and the mixer needs to be cleaned, the second switch valve in the high-level sand discharge pipe 41 is closed, and the third switch valve in the low-level sand discharge pipe 42 is opened; in this way, the air column or air bubble formed during the transportation of the slurry is reduced, and the return of the slurry by spraying is avoided. In addition, if there is a back-slurry situation, the exhaust device set up can not only be used for exhaust, but also prevent the overflow of high-pressure gas spraying, to ensure the safety of surrounding workers and the environmental sanitation of the filling operation site. In addition, an ultrasonic level meter 61 is provided on the auxiliary barrel 2, which cooperates with the control device 62 to accurately detect the liquid level of the filling slurry in the auxiliary barrel 2 through ultrasound. In addition, the conveying status of the filling slurry can be observed at any time through the monitoring room in the control device 62, which is also convenient for sampling.
[0037] In summary, the utility model provides a pipeline exhaust device for a gravity conveying system of filling slurry, which connects the auxiliary barrel beside the stirring device to the exhaust device arranged above the filling pipe by setting sand pipes at different heights; wherein the exhaust device includes an exhaust pipe whose bottom end is connected to the filling pipe and an exhaust cap connected to the top of the exhaust pipe; thus, the air column or air bubble formed during the slurry transportation process is reduced to avoid the return of the slurry during spraying. In addition, if the slurry backflow occurs, the exhaust device can not only be used for exhaust, but also prevent the overflow of high-pressure gas spraying, thereby ensuring the safety of surrounding staff and the environmental sanitation of the filling work site. By setting a liquid level detection device for detecting the state of the slurry in the auxiliary barrel, the liquid level of the filling slurry in the auxiliary barrel can be detected more accurately, and it is also convenient to observe the conveying state of the filling slurry at any time, and it is convenient for sampling.
[0038] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.
Claims
1. A pipeline exhaust device for a filling slurry gravity conveying system, characterized in that: include: An auxiliary barrel is arranged on one side of the stirring device and connected to the stirring device, a sand discharge pipe is connected to the auxiliary barrel at one end, and an exhaust device is connected to the other end of the sand discharge pipe; the auxiliary barrel is located between the stirring device and the sand discharge pipe; the bottom end of the exhaust device is connected to the filling pipeline; the sand discharge pipe is connected to one side of the exhaust device.
2. The pipeline exhaust device for the gravity conveying system of filling slurry according to claim 1 is characterized by: The exhaust device comprises an exhaust pipe whose bottom end is connected to the filling pipe and an exhaust cap which is connected to the top end of the exhaust pipe.
3. The pipeline exhaust device of the filling slurry gravity conveying system according to claim 2 is characterized in that: The height of the exhaust pipe is at least 2 m higher than the height of the stirring barrel in the stirring device.
4. The pipeline exhaust device for the gravity conveying system of filling slurry according to claim 3 is characterized by: The bottom end of the exhaust pipe is at the same level as the bottom end of the stirring barrel in the stirring device.
5. The pipeline exhaust device of the filling slurry gravity conveying system according to claim 2 is characterized by: The exhaust cap comprises a cap pipe opening whose bottom end is communicated with the exhaust pipe and a cap brim which is communicated with the top end of the cap pipe opening.
6. The pipeline exhaust device for the gravity conveying system of filling slurry according to claim 5 is characterized by: The bottom end of the cap pipe opening is a grille grid; the top end of the cap pipe opening is a louver baffle.
7. The pipeline exhaust device for the gravity conveying system of filling slurry according to claim 6 is characterized by: The sand discharge pipe comprises a high-level sand discharge pipe and a low-level sand discharge pipe, each of which connects the auxiliary barrel with the exhaust pipe respectively.
8. The pipeline exhaust device for the gravity conveying system of filling slurry according to claim 7 is characterized by: The high-level sand discharge pipe has a higher level than the low-level sand discharge pipe.
9. The pipeline exhaust device of the filling slurry gravity conveying system according to claim 1 is characterized in that: Also includes: A liquid level detection device is used to detect the state of the slurry in the auxiliary barrel.
10. The pipeline exhaust device of the filling slurry gravity conveying system according to claim 9, characterized in that: The liquid level detection device comprises an ultrasonic liquid level meter arranged on the barrel wall of the auxiliary barrel and a control device used in conjunction with the ultrasonic liquid level meter.