Combined control system for feeding of ore distribution box of filter

Abstract

The invention belongs to the technical field of mineral separation, and relates to a filter ore separation box feeding combined control system which comprises a sand pump pool and an ore separation box. The ore separation box is used for receiving concentrate materials in the sand pump pool; the sand settling box is arranged in the middle of the bottom of the cylindrical box body, partially sinks and is hung at the bottom of the cylindrical box body, and is used for receiving fed ore of the sand pump pool; a feeding pneumatic valve is arranged in the ore outlet pipe; a hydraulic cone valve is arranged above the ore outlet pipe, and the hydraulic cone valve and the feeding pneumatic valve are independently controlled; during normal production, the feeding pneumatic valve works, and at the moment, the corresponding hydraulic cone valve is in a suspended state; and when the machine is shut down for a long time, the feeding pneumatic valve is shut down, and the corresponding hydraulic cone valve is in contact with the ore outlet pipe to plug the ore outlet pipe. According to the technical scheme, the problem that the feeding pipeline is blocked can be effectively solved, the production efficiency is improved, and the safety risk is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of mineral processing and relates to a filter ore separation box feeding combined control system. Background Art

[0002] Ceramic filters are widely used in the dehydration of ore concentrates during mineral processing. Mining companies' iron ore, sulfur ore, and copper concentrate dehydration systems utilize ceramic filters for dehydration. The iron ore dehydration system is equipped with eight 60-square-meter ceramic filters, which are fed by gravity via an eight-hole ore distribution box and a pneumatic feed valve. However, in actual production, only four filters are typically in operation, with the remaining four serving as backup. When backup equipment is activated due to a malfunction or production demand, the feed pipes, which have been unused for a long time, are prone to blockage, requiring on-site operators to clear them. This not only impacts production efficiency but also poses certain safety risks. Summary of the Invention

[0003] The present application provides a filter ore separation box feed joint control system, which can effectively solve the problem of feed pipeline blockage, improve production efficiency and reduce safety risks.

[0004] In order to achieve the above technical objectives, the technical solution adopted by the present application is a filter ore separation box feeding joint control system, comprising a sand pump pool and an ore separation box; the ore separation box receives the concentrated ore material in the sand pump pool;

[0005] The ore separation box includes a cylindrical box body, a sand settling box, an ore separation device, an ore discharge pipe and an overflow pipe; the sand settling box is arranged in the middle of the bottom of the cylindrical box body, and is partially sunken and suspended at the bottom of the cylindrical box body, and is used to receive ore from the sand pump pool;

[0006] The ore separation device includes an ore separation partition and a flow stabilization hole;

[0007] The steady flow hole is provided at the center of the cylindrical box body, and a steady flow hole discharge port is provided on the lower side wall of the steady flow hole; the top of the sand settling box is located in the steady flow hole and is higher than the steady flow hole discharge port;

[0008] The bottom of the cylindrical box is evenly distributed with ore outlets around the periphery of the steady flow hole, and the ore outlet pipe is installed at each ore outlet; the ore separation partition is set between any two adjacent ore outlet pipes to separate the area where the ore outlet pipes are located into an independent space together with the inner wall of the cylindrical box and the outer wall of the steady flow hole;

[0009] The overflow pipe is arranged on the upper part of the cylindrical box body and is connected to the sand pump pool;

[0010] Among them, a feed pneumatic valve is arranged in the ore outlet pipe; a hydraulic cone valve is arranged above the ore outlet pipe, and the hydraulic cone valve and the feed pneumatic valve are independently controlled; during normal production, the feed pneumatic valve works, and the corresponding hydraulic cone valve is in a suspended state; when the machine is shut down for a long time, the feed pneumatic valve stops, and the corresponding hydraulic cone valve contacts the ore outlet pipe to block it.

[0011] As an improved technical solution of the present application, the distance between the ore outlet and the feed pneumatic valve is 600 mm.

[0012] As an improved technical solution of the present application, a manual slurry valve is further provided in the ore outlet pipe between the feed pneumatic valve and the hydraulic cone valve.

[0013] As an improved technical solution of the present application, the concentrate material produced by the three-stage magnetic separator flows by gravity through the concentrate pipeline to the sand pump pool.

[0014] As an improved technical solution of the present application, it includes a three-stage magnetic separator, a sand pump pool, a separation box, a concentrating magnetic separator and a ceramic filter connected in sequence; wherein, the concentrate material produced by the three-stage magnetic separator flows by gravity to the sand pump pool through the concentrate pipeline, the feed sand pump pumps the concentrate material in the sand pump pool to the separation box, the material in the separation box passes through the feed pneumatic valve and the separation device to the concentrating magnetic separation pipeline and enters the concentrating magnetic separator, the concentrating magnetic separator performs separation, the separated concentrate enters the ceramic filter along the ceramic filter feed pipeline, and the tailings after separation enter the return water system along the concentrating magnetic separation tailings pipeline.

[0015] Beneficial effects

[0016] 1. The feed pneumatic valve and the hydraulic cone valve are jointly controlled. When the filter enters the cleaning state or the standby state, the operator closes the hydraulic cone valve by operating the button. After closing, the filter is cleaned to solve the blockage problem caused by the long-term non-operation of the standby equipment.

[0017] 2. The combined control method solves the potential problem of blockage in the pipeline from the feed pneumatic valve to the ceramic filter caused by the standby equipment not being in operation for a long time.

[0018] 3. Currently, remote operation is used. When the filter enters the cleaning state or the standby state, the operator closes the hydraulic cone valve by operating the button, and then cleans the filter. When the filter is turned on, the operator opens the hydraulic cone valve by operating the button. This allows the operator to operate and monitor without entering the potentially dangerous area, greatly improving the safety of the operation and reducing the possibility of accidents.

[0019] 4. Solve the problem of blockage of the ceramic filter feed pipe, thereby achieving intrinsic safety.

[0020] 5. With the effective use of the hydraulic cone valve, the manual slurry valve between the ore distribution box and the feed pneumatic valve no longer needs to be operated. The hydraulic cone valve can be used for maintenance, solving the problem of difficult opening and closing of the manual slurry valve.

[0021] 6. Provide strong support for the subsequent ore box control transformation at other operating points in the mineral processing plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Draw a schematic diagram of the system structure of this application;

[0023] Figure 2 A schematic diagram of the installation structure of the ore distribution box of this application is drawn;

[0024] Figure 3 A schematic diagram of the structure of the ore distribution box of this application is shown;

[0025] Figure 4 A front view of the ore distribution box of the present application is shown;

[0026] Figure 5 A top view of the distribution box of the present application is shown;

[0027] Figure 6 A schematic diagram showing the main structure of the ore distribution box of this application is drawn;

[0028] In the figure, 1. Ceramic filter; 2. Ceramic filter feed pipe; 3. Thickening magnetic separator; 4. Thickening magnetic separation tailings pipe; 5. Return water system; 6. Distribution box to thickening magnetic separation pipe; 7. Ore separation box; 8. Overflow pipe; 9. Sand pump pool; 10. Ore feed sand pump; 11. Pipeline from sand pump to ore separation box; 12. Concentrate pipe; 13. Three-stage magnetic separator; 14. Feed pneumatic valve; 15. Manual slurry valve; 16. Hydraulic cone valve; 17. Cylindrical box; 18. Sand settling box; 19. Ore separation partition; 20. Flow stabilization hole. DETAILED DESCRIPTION

[0029] definition:

[0030] Manual slurry valve is a manual slurry gate valve.

[0031] like Figure 1 As shown, a filter separator box feed combined control system includes a three-stage magnetic separator 13, a sand pump tank 9, a separator box 7, a concentration magnetic separator 3, and a ceramic filter 1 connected in sequence;

[0032] like Figure 2 As shown, the ore separation box includes a cylindrical box body 17, a flow stabilizing hole 20, a sand settling box 18, an ore separation device, an ore discharge pipe and an overflow pipe 8; the sand settling box 18 is arranged in the middle position of the bottom of the cylindrical box body 17, and is partially sunken and suspended at the bottom of the cylindrical box body 17, for receiving ore from the sand pump pool 9;

[0033] The ore separation device includes an ore separation partition 19 and a flow stabilization hole 20;

[0034] The stabilizing hole 20 is provided at the center of the cylindrical box 17, and the ore discharge pipe is provided between the cylindrical box 17 and the stabilizing hole 20 and is arranged around the sand settling box 18; the stabilizing hole 20 is provided at the center of the cylindrical box 17, and a stabilizing hole discharge port is provided on the lower side wall of the stabilizing hole 20; the top of the sand settling box 18 is located in the stabilizing hole 20 and is higher than the stabilizing hole discharge port;

[0035] At the bottom of the cylindrical box 17, there are ore outlets evenly distributed around the periphery of the steady flow hole 20, and an ore outlet pipe is installed at each ore outlet; the ore separation partition 19 is set between any two adjacent ore outlet pipes to separate the area where the ore outlet pipe is located into an independent space together with the inner wall of the cylindrical box 17 and the outer wall of the steady flow hole 20, and its function is to control the flow rate flowing through the corresponding ore outlet.

[0036] The overflow pipe 8 is arranged on the upper part of the cylindrical box 17 and is connected to the sand pump pool 9;

[0037] Among them, a feed pneumatic valve 14 is arranged in the ore outlet pipe; the ore outlet pipe is installed at the end of the ore outlet, and a hydraulic cone valve is provided above the ore outlet pipe; the hydraulic cone valve and the feed pneumatic valve are independently controlled. During normal production, the feed pneumatic valve works, and the corresponding hydraulic cone valve is in a suspended state; when the machine is shut down for a long time, the feed pneumatic valve stops, and the corresponding hydraulic cone valve contacts the ore outlet pipe to block it.

[0038] The stabilizing hole 20 is connected to the grit box 18. The grit box 18 is sized to accommodate the ore feed from the ore distribution box. The top of the grit box 18 is slightly higher than the stabilizing hole discharge port. The grit box 18 is also located in the center of the cylindrical housing 17. The lower sidewall of the stabilizing hole 20 is provided with a stabilizing hole discharge port. The ore from the ore distribution box first enters the grit box 18. After the concentrate is accumulated, it forms an ore pile. Subsequently, the ore from the ore distribution box will flow along the ore pile toward the stabilizing hole 20, thereby buffering and reducing the flow rate. Without the grit box 18, the ore from the ore distribution box would directly impact the bottom plate of the cylindrical housing 17 and splash toward the stabilizing hole 20. The cylindrical housing bottom plate and the stabilizing hole are constantly impacted by the ore from the ore distribution box, greatly reducing their lifespan. In addition, the splashing of ore from the ore distribution box can also have a significant impact on on-site management, so the grit box is provided.

[0039] The hydraulic cone valve mainly includes the following components: a hydraulic oil station system, a hydraulic cylinder, a hydraulic cylinder mounting bracket, a cone valve, a cone valve limit control rod, a lower limit, and an upper limit. The axis of the hydraulic cone valve 16 coincides with the center axis of the ore outlet; the hydraulic cone valve can slide along the center axis and can block the ore outlet during the sliding process; when the ceramic filter 1 that has not been used for a long time needs to be opened, the hydraulic cone valve 16 is driven by the hydraulic cylinder to slide upward to open the ore outlet. When the ceramic filter 1 is prepared for standby or maintenance, the hydraulic cone valve 16 is driven by the hydraulic cylinder to slide downward to close the ore outlet. The hydraulic cylinder drive is powered by the hydraulic oil station system and is installed on the hydraulic cylinder mounting bracket; the hydraulic cylinder mounting bracket is made of channel steel and welded to the cylindrical box 17 and the flow-stabilizing hole 20. In actual use, the hydraulic cylinder mounting bracket needs to be arranged horizontally. Although the highest point of the cylindrical housing 17 is lower than the highest point of the flow-stabilizing orifice 20, this is because the flow-stabilizing orifice 20 is used to feed the ore from the ore distribution box 7. To prevent ore splashing during feeding from the ore distribution box 7, the flow-stabilizing orifice 20 is arranged higher. However, the installation of the hydraulic cylinder mounting bracket does not conflict with the height of the flow-stabilizing orifice 20 and the cylindrical housing 17 itself. On-site, the top of the cylindrical housing 17 is used as the mounting location for the hydraulic cylinder mounting bracket. Located above the respective ore outlets, the hydraulic cone valve 16 can slide along the central axis. For safety reasons, a cone valve limit control lever, lower limit, and upper limit are additionally provided. These are designed to ensure that the hydraulic cone valve 16 is fully closed without generating downward pressure and fully opened without damaging other ancillary equipment. The cone valve limit control lever is installed at the cone valve connection; the upper and lower limit limits are fixed to the cone valve limit control lever. When the hydraulic cone valve 16 slides along the central axis, the cone valve limit control rod moves and contacts the upper limit or lower limit to complete the overall protection work. For example, the product name is: Hydraulic cone valve, model: KRJX200, and the manufacturer is: Tongling Kairui Machinery and Materials Co., Ltd.

[0040] As an improved technical solution of this application, the distance between the ore outlet and the feed pneumatic valve 14 is 600 mm to protect the bottom plate of the cylindrical box 17, and the feed pneumatic valve and the pipeline behind the feed pneumatic valve can be replaced without affecting the overall production.

[0041] As an improved technical solution of the present application, a manual slurry valve 15 is further provided in the ore outlet pipe between the feed pneumatic valve 14 and the hydraulic cone valve 16 .

[0042] As an improved technical solution of the present application, the concentrate material produced by the three-stage magnetic separator 13 flows by gravity to the sand pump pool through the concentrate pipeline.

[0043] In detail, the operation mode of a filter ore box feeding joint control system is as follows:

[0044] 1. Operation principle of concentrate dehydration system:

[0045] During production, the concentrate produced by the three-stage magnetic separator 13 flows by gravity through the concentrate pipeline 12 to the sand pump pool 9. The feed sand pump 10 pumps the concentrate from the sand pump pool 9 to the ore separation box 7. The material in the ore separation box 7 passes through the feed pneumatic valve 14 and the distribution box to the concentration magnetic separation pipeline 6, where it enters the concentration magnetic separator 3. The concentration magnetic separator 3 separates the concentrate, and the separated concentrate enters the ceramic filter 1 along the ceramic filter feed pipeline 2. The separated tailings enter the return water system 5 along the concentration magnetic separation tailings pipeline 4. If the ceramic filter 1 malfunctions, the ore fed to the ore separation box 7 by the feed sand pump 10 will return to the sand pump pool 9 through the ore separation box overflow pipeline 8.

[0046] 2. Principle and description of ore separation box transformation:

[0047] There are 8 ceramic filters 1 installed on site. Under normal circumstances, 4 are in operation and 4 are in standby mode. When a fault occurs or the production volume needs to be increased and the standby equipment is activated, the hydraulic cone valve 16 inside the ore separation box 7 is in the state of 4 lifting and suspension state and 4 lowering and blocking state.

[0048] The ceramic filter 1 in normal startup does not need to start the hydraulic cone valve 16, and its working principle is as follows: when the material level of the ceramic filter 1 tank body is lower than the limit set by the ceramic filter 1, the ceramic filter 1 system will trigger the feed pneumatic valve 14 below the separation box 7 to open. At this time, the concentrate material will flow from the separation box 7 along the distribution box to the concentration magnetic separation pipe 6 into the concentration magnetic separator 3, and after being sorted by the concentration magnetic separator 3, it will enter the ceramic filter 1 along the ceramic filter feed pipe 2; when the material level of the ceramic filter 1 tank body is higher than the limit set by the ceramic filter 1, the ceramic filter 1 system will trigger the feed pneumatic valve 14 below the separation box 7 to close. At this time, the concentrate material will be stored inside the separation box 7 or return to the sand pump pool 9 through the overflow pipe 8 of the separation box.

[0049] When the standby filter needs to be activated, the hydraulic cone valve 16 is operated. Since the hydraulic cone valve 16 at the outlet of the distribution box 7 corresponding to the standby ceramic filter 1 is in a blocked state, the worker on duty needs to remotely operate the hydraulic cone valve 16 through video monitoring to open the hydraulic cone valve 16 at the outlet of the corresponding distribution box 7 and put it in a lifted and suspended state.

[0050] 3. Detailed description of the ore distribution box transformation:

[0051] The ore separation box 7 includes a cylindrical box body 17, a sand settling box 18, an ore separation device, an ore discharge pipe and an overflow pipe 8. A sand settling box 18 is provided in the cylindrical box body 17. The sand settling box 18 is arranged in the middle position of the bottom of the cylindrical box body 17, and is used to receive ore from the ore sand pump 10. The ore separation device is composed of an ore separation partition 19 and a flow stabilizing hole 20 device. The ore separation partition 19 and the flow stabilizing hole 20 device are sealed and connected to the cylindrical box body 17. There are eight ore discharge ports on the cylindrical box body 17 at equal distances. The ore discharge pipe is arranged inside the ore separation partition 19 and at the bottom of the cylindrical box body 17. The feed valve of the ceramic filter 1 controls whether it discharges ore. The overflow pipe 8 is arranged on the upper part of the cylindrical box body 17. When the liquid level is high, the concentrate material can flow back to the sand pump pool 9 by itself. See for details. Figure 3-6 .

[0052] The distance between the ore outlet and the feed pneumatic valve 14 is 600mm. The main reasons are as follows: in order to protect the service life of the bottom plate of the cylindrical box 17 inside the ore separation box 7, the distribution box to the concentration magnetic separation pipe 6 is extended to 100mm from the bottom plate of the cylindrical box 17 inside the ore separation box 7, thereby causing ore to accumulate at the bottom of the cylindrical box 17; at the same time, a manual slurry valve 15 is added between the feed pneumatic valve 14 and the ore separation box 7. The purpose of the manual slurry valve 15 is because the rubber valve core inside the feed pneumatic valve 14 is often opened and closed, which will wear out and will be damaged after long-term use. After damage, it will not affect the overall production; closing the manual slurry valve 15 can realize the maintenance of a single device. Therefore, the actual measured distance between the ore outlet and the feed pneumatic valve 14 is as high as 600mm, which protects the bottom plate of the cylindrical box and allows the feed pneumatic valve and the pipeline behind the feed pneumatic valve to be replaced without affecting the overall production. The spare ceramic filter 1 has a closed feed pneumatic valve 14, and the section from the ore distribution box 7 to the feed pneumatic valve 14 is open. If it is not opened for a long time, there will be ore accumulation in this section of the ore outlet pipe. At the same time, the iron concentrate has a relatively large specific gravity and settles quickly. At this time, the spare ceramic filter 1 is turned on. Although the feed pneumatic valve 14 is opened, there is a blockage between the ore outlet and the feed pneumatic valve 14, which requires on-site operators to clear it. This not only affects production efficiency, but also brings certain safety risks.

[0053] In addition, the spare ceramic filter 1 is shut down for a long time. If the feed pneumatic valve 14 is damaged during the shutdown, a small amount of slurry will enter the distribution box to the concentration magnetic separation pipeline 6 from the feed pneumatic valve 14, causing long-term blockage, and then leading to blockage of the distribution box to the concentration magnetic separation pipeline 6, which is difficult to clear and has a high risk factor.

[0054] 4. Operation sequence of hydraulic cone valve 16 and ceramic filter 1:

[0055] Before starting the spare ceramic filter 1, the operator starts the ceramic filter 1 normally; after the feed pneumatic valve 14 is opened, operate the corresponding hydraulic cone valve 16 button to put the corresponding hydraulic cone valve 16 into a lifting and suspended state. If this machine is turned on for a long time, the corresponding hydraulic cone valve 16 does not need to be operated.

[0056] When the ceramic filter 1 fails or is switched as a backup, first operate the corresponding hydraulic cone valve 16 button to put the corresponding hydraulic cone valve 16 into a lowered and blocked state. At this time, shut down according to the operating sequence. The purpose of this is to prevent blockage between the ore outlet and the feed pneumatic valve 14 during the shutdown process.

Claims

1. A filter ore box feed joint control system, characterized in that: It includes a sand pump pool and a ore distribution box; the ore distribution box receives the concentrated mineral material in the sand pump pool; The ore separation box includes a cylindrical box body, a sand settling box, an ore separation device, an ore discharge pipe and an overflow pipe; the sand settling box is arranged in the middle of the bottom of the cylindrical box body, and is partially sunken and suspended at the bottom of the cylindrical box body, and is used to receive ore from the sand pump pool; The ore separation device includes an ore separation partition and a flow stabilization hole; The steady flow hole is provided at the center of the cylindrical box body, and a steady flow hole discharge port is provided on the lower side wall of the steady flow hole; the top of the sand settling box is located in the steady flow hole and is higher than the steady flow hole discharge port; The bottom of the cylindrical box is evenly distributed with ore outlets around the periphery of the steady flow hole, and the ore outlet pipe is installed at each ore outlet; the ore separation partition is set between any two adjacent ore outlet pipes to separate the area where the ore outlet pipes are located into an independent space together with the inner wall of the cylindrical box and the outer wall of the steady flow hole; The overflow pipe is arranged on the upper part of the cylindrical box body and is connected to the sand pump pool; Among them, a feed pneumatic valve is arranged in the ore outlet pipe; a hydraulic cone valve is arranged above the ore outlet pipe, and the hydraulic cone valve and the feed pneumatic valve are independently controlled; during normal production, the feed pneumatic valve works, and the corresponding hydraulic cone valve is in a suspended state; when the machine is shut down for a long time, the feed pneumatic valve stops, and the corresponding hydraulic cone valve contacts the ore outlet pipe to block it.

2. A filter ore box feed combined control system according to claim 1, characterized in that: The distance between the ore outlet and the feed pneumatic valve is 600 mm.

3. A filter ore distribution box feeding combined control system according to claim 1, characterized in that: A manual slurry valve is also provided in the ore outlet pipe between the feed pneumatic valve and the hydraulic cone valve.

4. A filter ore box feed combined control system according to claim 1, characterized in that: The concentrate produced by the three-stage magnetic separator flows by gravity to the sand pump pool through the concentrate pipeline.

5. A filter ore distribution box feeding combined control system according to claim 1, characterized in that: It includes three-stage magnetic separators, sand pump pools, ore separation boxes, concentrating magnetic separators and ceramic filters connected in sequence; among them, the concentrate produced by the three-stage magnetic separator flows through the concentrate pipeline to the sand pump pool, and the ore sand pump pumps the concentrate in the sand pump pool to the ore separation box. The material in the ore separation box passes through the feed pneumatic valve and the ore separation device to the concentrating magnetic separation pipeline and enters the concentrating magnetic separator. The concentrating magnetic separator performs separation, and the separated concentrate enters the ceramic filter along the ceramic filter feed pipeline, and the tailings after separation enter the return water system along the concentrating magnetic separation tailings pipeline.

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