Medicament adding system and medicament adding process

Abstract

The invention provides a reagent adding system and a reagent adding process. The reagent adding system and the reagent adding process can improve the flotation effect by improving reagents. The agent adding system comprises an agent adding device, and the agent adding device is connected with the ore pulp tank; the medicament adding device comprises at least two stirring and splitting assemblies, each stirring and splitting assembly comprises a stirring tank and a splitting device, and the stirring tanks are connected with the splitting devices; and the divider of one stirring and dividing assembly is connected with the stirring tank of the other stirring and dividing assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mineral processing, in particular to a reagent adding system and a reagent adding process. BACKGROUND

[0002] Currently, many ore dressing plants produce flotation concentrate by using flotation reagents. Among them, ester reagents are difficult to dissolve and need to be stirred for a long time to completely dissolve. In the related technical solutions, a large-scale stirring tank is set to stir the reagents in advance in a single stirring manner. In actual application scenarios, the flotation reagents need to be added to the ore pulp tank at the initial stage of stirring. The reagents added to the ore pulp tank cannot be stirred uniformly by the foregoing stirring manner, which makes the reagents not fully dissolved and easily affects the flotation effect. SUMMARY

[0003] The purpose of the present application is to provide a reagent adding system and a reagent adding process, which can improve the reagents to improve the flotation effect.

[0004] In order to achieve the above purpose, the present application provides a reagent adding system, which comprises a reagent adding device, wherein the reagent adding device is connected with an ore pulp tank; the reagent adding device comprises at least two stirring and dividing assemblies, each of the stirring and dividing assemblies comprises a stirring tank and a dividing device, and the stirring tank is connected with the dividing device; the dividing device of one of the stirring and dividing assemblies is connected with the stirring tank of another of the stirring and dividing assemblies.

[0005] Optionally, the dividing device connected with the upstream stirring tank and the adjacent downstream stirring tank comprises m flow channels; any of the flow channels of the dividing device is connected with the downstream stirring tank, and the volume of the upstream stirring tank is m times the volume of the adjacent downstream stirring tank.

[0006] Optionally, the number m of the flow channels of the dividing device ranges from 3 to 10.

[0007] Optionally, the total cross-sectional area of the flow channels of the upstream dividing device is m times the total cross-sectional area of the flow channels of the downstream dividing device.

[0008] Optionally, the reagent adding system further comprises a surplus material processing device, wherein the surplus material processing device is arranged between the stirring tank and the dividing device; the surplus material processing device comprises a surplus material tank, and the surplus material tank is connected to the end of other flow channels, and the other flow channels are the flow channels other than the flow channels connected with the upstream and downstream stirring tanks of the dividing device.

[0009] Optionally, the excess material processing device comprises a circulating unit connected between the excess material tank and the stirring tank; the circulating unit comprises an excess material pipe, an excess material pump and an outlet pipe, one end of the excess material pipe is communicated with the excess material tank, the excess material pump is communicated with the other end of the excess material pipe; one end of the outlet pipe is communicated with the excess material pump, and the other end of the outlet pipe is communicated with the top of the upstream stirring tank.

[0010] Optionally, the medicament adding system further comprises a disc feeder located between the medicament adding device and the ore pulp tank, and the disc feeder is fixed to the top of the ore pulp tank.

[0011] Optionally, the diameter of the disc feeder is 0.1-0.6 times of the diameter of the ore pulp tank.

[0012] Optionally, the disc feeder comprises a peripheral wall extending away from the ore pulp tank, and the extension distance of the peripheral wall is 10-50 mm.

[0013] The application also provides a medicament adding process using any one of the medicament adding systems described above, comprising the following steps:

[0014] feeding medicament into the primary stirring and classifying assembly;

[0015] stirring and classifying the medicament in sequence using at least two stirring and classifying assemblies;

[0016] feeding the medicament after being stirred and classified by the final stirring and classifying assembly into the ore pulp tank.

[0017] The medicament adding system in the application uses stirring tanks and classifiers to form stirring and classifying assemblies, prolongs the stirring time of medicament and improves the accuracy of medicament stirring through at least two times of stirring and classifying, so as to ensure that the medicament can be fully dissolved. This step-by-step stirring and classifying can increase the stirring times and improve the stirring uniformity, so that the medicament can be fully dissolved, and the medicament entering the ore pulp tank can improve the flotation effect.

[0018] The medicament adding process in the application has the same technical effects as the medicament adding system, and will not be described again. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 FIG. 1 is a structural schematic diagram of a medicament adding system in an embodiment of the application;

[0020] Figure 2 FIG. 2 is a structural schematic diagram of a medicament adding system in another embodiment of the application; Figure 1 FIG. 3 is an enlarged view of the end structure of the flow channel of the classifier in FIG. 2;

[0021] The reference signs are as follows:

[0022] 1 - medicament adding system;

[0023] 11 - medicament adding device; 111 - stirring and classifying assembly; 1111 - stirring tank; 1112 - classifier; 11121 - flow channel; 11121a - first pipe section; 11121b - second pipe section;

[0024] 12 - excess material processing device; 121 - excess material tank; 122 - circulating unit; 1221 - excess material pipe; 1222 - excess material pump; 1223 - outlet pipe;

[0025] 13 - disc feeder; 131 - outer peripheral wall.

[0026] 2 - ore pulp tank; DETAILED DESCRIPTION

[0027] In order to make the person skilled in the art better understand the technical solutions of the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0028] In the description of the embodiments of the present application, it should be noted that the directions or positional relationships indicated by "up", "down", "left", "right", etc. are based on the drawings and are only for the convenience of description, and do not indicate or imply that the devices referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0029] As shown in Figure 1 , Fig. 1 is a structural schematic diagram of a medicament adding system 1 in an embodiment of the present application. Figure 1

[0030] The embodiment of the present application provides a medicament adding system 1, which comprises a medicament adding device 11, wherein the medicament adding device 11 is connected with an ore pulp tank 2; the medicament adding device 11 comprises at least two stirring and classifying assemblies 111, the stirring and classifying assembly 111 comprises a stirring tank 1111 and a classifier 1112, and the stirring tank 1111 is connected with the classifier 1112; the classifier 1112 of one stirring and classifying assembly 111 is connected with the stirring tank 1111 of another stirring and classifying assembly 111 downstream. The medicament adding system 1 in the present application is provided with the medicament adding device 11 on one side of the ore pulp tank 2, the medicament adding device 11 comprises the stirring tank 1111 and the classifier 1112 located downstream of the stirring tank 1111, and the medicament is stirred first and then classified. The medicament adding device 11 is provided with at least two stirring and classifying assemblies 111, so that the medicament flowing out of the previous stirring and classifying assembly 111 enters the next stirring and classifying assembly 111 to be continuously stirred and classified, the stirring and classifying time of the medicament is prolonged through at least twice of stirring and classifying, the sufficient dissolution of the medicament is guaranteed, and thus the medicament entering the ore pulp tank 2 is improved to improve the flotation effect.

[0031] ​In the flow direction of the medicament, the medicament flowing out of the upstream stirring and dividing assembly 111 flows to the downstream stirring and dividing assembly 111. In the embodiment, the upstream and downstream are sequentially defined.

[0032] In the embodiment, the adjacent upstream and downstream stirring tanks 1111 are connected by the divider 1112. In addition to extending the stirring time of the medicament, the multi-stage dividing and stirring can itself improve the stirring effect. Specifically, the divider 1112 connected to the upstream stirring tank 1111 and the downstream stirring tank 1111 includes m flow channels 11121; n flow channels 11121 of the divider 1112 are connected to the downstream stirring tank 1111, where n is less than m, for example, n = 1. That is, the amount of medicament entering the downstream stirring tank 111 in the divider 1112 is less than the amount of medicament in the upstream stirring tank 111, which is the dividing function of the divider 1112.

[0033] Since at least two stirring and dividing assemblies 111 are provided, i.e., at least two stages of stirring and dividing assemblies 111 are provided, the primary stirring and dividing assembly 111 performs primary stirring on more medicament, and the part of the medicament after the primary stirring and the dividing of the divider 1112 enters the secondary stirring and dividing assembly 111 located downstream for targeted secondary stirring. If the number of stirring and dividing assemblies 111 is more than two, the part of the medicament after the secondary stirring will enter the tertiary stirring and dividing assembly 111 located downstream for targeted tertiary stirring, and so on. As can be seen, this multi-stage stirring and dividing method makes the medicament not always stirred in one stirring tank 1111. If the uniformity of stirring in the primary stirring tank 111 is not enough, through the multi-stage stirring and dividing method, the part of the medicament after the primary stirring and the uniformity is not enough can be transported to the next stage of the stirring tank 111 for secondary stirring. At this time, it is no longer the stirring of all medicaments, but the part of the medicament enters the next stage of the stirring tank 111, so that the stirring of the next stage is more targeted compared to the medicament stirring of the previous stage, and the uniformity of stirring is improved, which is the fine stirring. With each additional stage of stirring tank 111, the uniformity of stirring is increased by one, which can further ensure the full dissolution of the medicament to improve the concentration of the medicament entering the ore pulp tank 2 and improve the flotation effect.

[0034] The volume of the upstream stirring tank 1111 can be m times the volume of the downstream stirring tank 1111. In combination Figure 1As shown, along the direction from left to right, it is upstream and downstream, there is a splitter 1112 between the upstream stirring tank 1111 and the downstream stirring tank 1111, the splitter 1112 has flow channels 11121, any flow channel 11121 of the splitter 1112 is connected with the downstream stirring tank 1111, that is, n = 1. After the medicament in the upstream stirring and splitting assembly 111 is stirred and split, it flows out from any flow channel 11121 of the splitter 1112 to the downstream stirring and splitting assembly 111. In the embodiment, the number of flow channels 11121 is m, the volume of the upstream stirring tank 1111 is set to m times the volume of the downstream stirring tank 1111, as before, the downstream stirring tank 111 is used to stir part of the medicament in the upstream stirring tank 111, when n = 1, that is, 1 / m of the medicament in the upstream stirring tank 111 is stirred, then the downstream stirring tank 111 can be set to adapt to 1 / m of the amount of medicament, and the volume of the downstream stirring tank 111 is smaller than that of the upstream stirring tank 111. Compared with the general stirring tank with a large volume used for unified stirring in the background art, the stirring tank 1111 in the primary stirring and splitting assembly 111 in the application is used for rough stirring, and does not need to be stirred for a long time, and the volume can be set to be relatively small, which can meet the requirement of rough stirring of all medicaments, and the volume of the subsequent downstream stirring tank 1111 is geometrically decreased, so that the overall volume of the stirring tank 1111 of the medicament adding device 11 is small, and the cost can be saved.

[0035] In some embodiments, the number m of flow channels 11121 of the splitter 1112 can be in the range of 3-10, the larger m is, the smaller the split ratio is, for example, if m = 3, 1 / 3 of the medicament can be selected to enter the next stirring and splitting assembly 111, and if m = 10, 1 / 10 of the medicament can be selected to enter the next stirring and splitting assembly 111. The amount of medicament selected by the last-stage splitter 1112 will be exponentially reduced compared with the amount of medicament in the primary stirring tank 1111, the larger m is, the higher the stirring precision of the medicament is, and the better the stirring effect is, but the larger m is, the smaller the amount of medicament selected under the condition of a certain amount of medicament is, so the number of flow channels 11121 of the splitter 1112 can be set according to actual needs, and in the embodiment, m is 3-10, which can balance the provision of the amount of medicament and the effect of stirring and splitting.

[0036] In this embodiment, the divider 1112 is fixed to the upstream stirring tank 1111 near the top, and the inlet of the downstream stirring tank 1111 is located at the bottom. The flow channel 11121 includes a first pipe section 11121a and a second pipe section 11121b. The first pipe section 11121a is composed of a horizontal section and a vertical section. One end of the horizontal section is fixed to the divider 1112, the other end of the horizontal section is connected to the vertical section, and the other end of the vertical section is connected to the second pipe section 11121b. The second pipe section 11121b is also arranged horizontally and is connected to the downstream stirring tank 1111. Since the outlet of the upstream stirring tank 1111 is at the top and the inlet of the downstream stirring tank 1111 is at the bottom, arranging the first pipe section 11121a as a horizontal section and a vertical section and arranging the second pipe section 11121b as a horizontal section can make the medicament flowing out of the upstream stirring tank 1111 flow into the bottom of the downstream stirring tank 1111 through the vertical section. Moreover, the vertical section also facilitates shortening the distance between the upstream and downstream stirring tanks 1111, which can reduce the floor area occupied by the medicament adding device 11. Exemplarily, the first pipe section 11121a can be arranged as a horizontal section and an inclined section having an inclined angle with the horizontal section, as long as the medicament can smoothly flow from the first pipe section 11121a into the second pipe section 11121b and then into the next stirring tank 1111. The arrangement can be set according to actual installation requirements. The medicament flows out of the upstream stirring tank 1111 near the top, flows into the bottom of the downstream stirring tank 1111 through the first pipe section 11121a and the second pipe section 11121b, and is continuously stirred by the downstream stirring tank 1111.

[0037] In some embodiments, the total cross-sectional area of the flow channel 11121 of the upstream divider 1112 can be m times the total cross-sectional area of the flow channel 11121 of the downstream divider 1112. In combination with the above description, the total cross-sectional area of the flow channel 11121 of the upstream divider 1112 is m times the total cross-sectional area of the flow channel 11121 of the downstream divider 1112. Figure 1 As shown, the direction from left to right is upstream and downstream. The total cross-sectional area of the flow channel 11121 of the upstream divider 1112 on the left is m times the total cross-sectional area of the flow channel 11121 of the downstream divider 1112 on the right. The cross-sectional area of the flow channel 11121 of the divider 1112 changes with the decrease of the volume of the stirring tank 1111. By controlling the cross-sectional area of the flow channel 11121 of the divider 1112, the flow rate of the medicament can be controlled. The cross-sectional area of the flow channel 11121 of the downstream divider 1112 is relatively small, which also facilitates cost reduction.

[0038] In some embodiments, the medicament adding system 1 further comprises a surplus processing device 12, which is arranged between the stirring tank 1111 and the dividing device 1112; the surplus processing device 12 comprises a surplus tank 121, which is connected to the end of the other flow channels 11121, which are flow channels 11121 other than those connected to the stirring tank 1111 upstream and downstream of the dividing device 1112. In this embodiment, any second pipe section 11121b is connected to the stirring tank 1111 downstream, and the other second pipe sections 11121b are connected to the surplus tank 121, i.e., the medicament that does not enter the stirring tank 1111 downstream enters the surplus tank 121. Exemplarily, as shown in Figure 2 , the second pipe sections 11121b of the plurality of flow channels 11121 are arranged side by side, and in this embodiment, any second pipe section 11121b in the middle is connected to the stirring tank 1111 downstream, and the length of any second pipe section 11121b in the middle is defined as L, and the lengths of the other second pipe sections 11121b are less than that of the second pipe section 11121b connected to the stirring tank 1111 downstream, for example, 2 / 3L, which can be referred to Figure 2 , the number of flow channels 11121 is 5, the length of the second pipe section 11121b of the flow channel 11121 in the middle is longer, and it is connected to the stirring tank 1111 downstream, and the second pipe sections 11121b of the other flow channels 11121 on both sides of the middle flow channel 11121 are connected to the surplus tank 121, and the medicament that does not enter the stirring tank 1111 downstream flows into the surplus tank 121 from the second pipe sections 11121b of the other flow channels 11121. In this way, the communication between the flow channels 11121 and the stirring tank 111 or the surplus tank 121 is facilitated, and interference is reduced.

[0039] In some embodiments, the surplus processing device 12 further comprises a circulating unit 122, which is connected between the surplus tank 121 and the stirring tank 1111; the circulating unit 122 comprises a surplus pipe 1221, a surplus pump 1222 and an outlet pipe 1223, one end of the surplus pipe 1221 is communicated to the side of the surplus tank 121 away from the stirring tank 1111 downstream, the other end of the surplus pipe 1221 is communicated to the surplus pump 1222; one end of the outlet pipe 1223 is communicated to the side of the surplus pump 1222 close to the stirring tank 1111 upstream, and the other end of the outlet pipe 1223 is communicated to the top of the stirring tank 1111 upstream.

[0040] The surplus processing device 12 is further provided with a circulating unit 122, which is combined with Figure 1As shown, it can be understood that the circulating unit 122 is fixed to the left side of the excess material tank 121 and the right side of the upstream stirring tank 1111, and the circulating unit 122 circulates the medicament flowing out of the other second pipe section 11121b to the upstream stirring tank 1111, so as to realize the circulating stirring of the medicament. The connection of the circulating unit 122 with the excess material tank 121 and the stirring tank 1111 is specifically that the excess material pipe 1221 is connected to the left side of the excess material tank 121, the excess material pump 1222 is connected to the left side of the excess material pipe 1221, and the outlet pipe 1223 is connected between the excess material pump 1222 and the upstream stirring tank 1111, so that the medicament flowing out of the other second pipe section 11121b is sent into the upstream stirring tank 1111 by the excess material pump 1222 and the outlet pipe 1223.

[0041] It can be seen that, by arranging the circulating unit 122, the medicament not entering the downstream primary stage for fine stirring is sent back to the upstream stirring tank 1111 for continuous stirring, so that the medicament is subjected to the circulating stirring, the stirring times of the medicament are increased, and the dissolution effect of the medicament is improved.

[0042] In some embodiments, the medicament adding system 1 further comprises a disc feeder 13, the disc feeder 13 is located between the medicament adding device 11 and the ore pulp tank 2, and the disc feeder 13 is fixed to the top of the ore pulp tank 2. The disc feeder 13 is installed between the top of the ore pulp tank 2 and the last-stage stirring and classifying assembly 111, i.e., the most downstream stirring and classifying assembly 111. In this way, the medicament can be added by using the disc feeder 13, the medicament enters the disc feeder 13 first, and the medicament can enter the ore pulp tank 2 in a circumferential manner after passing through the disc feeder 13, so that the contact area of the medicament entering the ore pulp tank 2 is increased, the medicament and the ore pulp are uniformly contacted, the uneven distribution of the medicament in the ore pulp tank 2 is improved, and the flotation effect is improved.

[0043] In some embodiments, the diameter of the disc feeder 13 is 0.1-0.6 times the diameter of the ore pulp tank 2. The disc feeder 13 in this range can uniformly and stably feed the medicament into the ore pulp tank 2 when the medicament enters the ore pulp tank 2, and the medicament is prevented from splashing.

[0044] In some embodiments, the disc feeder 13 comprises an outer peripheral wall 131, the outer peripheral wall 131 extends in a direction away from the ore pulp tank 2, and the extension distance of the outer peripheral wall 131 is 10-50 mm. The medicament flowing out of the last-stage stirring and classifying assembly 111 is fed into the disc feeder 13, and the medicament gradually overflows from the disc feeder 13 and then flows into the ore pulp tank 2, so as to ensure that the medicament contacts the minerals in the ore pulp tank 2 in a relatively gentle flow, and the utilization rate of the medicament is ensured.

[0045] The embodiment also provides a medicament adding process using the medicament adding system 1 of any of the above, comprising the following steps:

[0046] feeding medicament into the primary stirring and concentrating component 111;

[0047] stirring and concentrating the medicament in sequence using at least two stirring and concentrating components 111;

[0048] feeding the medicament after being stirred and concentrated by the final stirring and concentrating component into the ore pulp tank 2.

[0049] In the medicament adding process, the medicament is stirred by the stirring tank 1111 and concentrated by the concentrator 1112 connected to one side of the stirring tank 1111. The medicament is first stirred and concentrated by the upstream stirring and concentrating component 111, then enters the downstream stirring and concentrating component 111, and is stirred and concentrated again by the downstream stirring and concentrating component 111. Specifically, while being stirred and concentrated, the other medicament not entering the downstream stirring tank 1111 can return to the upstream stirring tank 1111 for repeated stirring, and the medicament after being stirred and concentrated by the multiple stirring and concentrating components flows into the ore pulp tank 2 from the final stirring and concentrating component 111. It can be seen that, by gradually stirring and concentrating, the number of stirring times can be increased and the stirring uniformity can be improved, so that the medicament can be fully dissolved.

[0050] The principles and implementation manners of the present application are described by using specific examples in the present application. The above examples are only used to help understand the method of the present application and its core idea. It should be noted that, for those skilled in the art, without departing from the principles of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A pharmaceutical dosing system, characterized in that, The device includes a reagent addition device (11) connected to a slurry tank (2); the reagent addition device (11) includes at least two stirring and reducing components (111), each stirring and reducing component (111) including a stirring tank (1111) and a reducing device (1112), the stirring tank (1111) being connected to the reducing device (1112); the reducing device (1112) of one stirring and reducing component (111) is connected to the stirring tank (1111) of the other stirring and reducing component (111).

2. The pharmaceutical dosing system according to claim 1, characterized in that, The divider (1112), which is connected to the upstream mixing tank (1111) and the adjacent downstream mixing tank (1111), includes m flow channels (11121); any one of the flow channels (11121) of the divider (1112) is connected to the downstream mixing tank (1111), and the volume of the upstream mixing tank (1111) is m times the volume of the adjacent downstream mixing tank (1111).

3. The pharmaceutical dosing system according to claim 2, characterized in that, The number m of the flow channels (11121) of the divider (1112) ranges from 3 to 10.

4. The pharmaceutical dosing system according to claim 2, characterized in that, The total cross-sectional area of ​​the flow channel (11121) of the upstream divider (1112) is m times the total cross-sectional area of ​​the flow channel (11121) of the downstream divider (1112).

5. The pharmaceutical dosing system according to claim 2, characterized in that, The reagent addition system (1) further includes a waste material treatment device (12), which is disposed between the mixing tank (1111) and the divider (1112). The waste material treatment device (12) includes a waste material box (121), which is connected to the end of other flow channels (11121). The other flow channels (11121) are the flow channels (11121) connected to the mixing tank (1111) upstream and downstream of the divider (1112).

6. The pharmaceutical dosing system according to claim 5, characterized in that, The waste material processing device (12) includes a circulation unit (122) connected between the waste material tank (121) and the mixing tank (1111); the circulation unit (122) includes a waste material pipe (1221), a waste material pump (1222) and an outlet pipe (1223); one end of the waste material pipe (1221) is connected to the waste material tank (121), and the waste material pump (1222) is connected to the other end of the waste material pipe (1221); one end of the outlet pipe (1223) is connected to the waste material pump (1222), and the other end of the outlet pipe (1223) is connected to the top of the upstream mixing tank (1111).

7. The pharmaceutical dosing system according to any one of claims 1-6, characterized in that, The reagent addition system (1) also includes a disc feeder (13), which is located between the reagent addition device (11) and the slurry tank (2) and is fixed to the top of the slurry tank (2).

8. The pharmaceutical dosing system according to claim 7, characterized in that, The diameter of the disc feeder (13) is 0.1-0.6 times the diameter of the slurry tank (2).

9. The pharmaceutical dosing system according to claim 7, characterized in that, The disc feeder (13) includes an outer peripheral wall (131) that extends in a direction away from the slurry tank (2) and the extension distance of the outer peripheral wall (131) is 10-50 mm.

10. A pharmaceutical addition process, using the pharmaceutical addition system according to any one of claims 1-9, characterized in that, Includes the following steps: Add the reagent to the primary stirring and reducing assembly (111); The agent is sequentially stirred and shrunk using at least two of the stirring and shrunk components (111); The reagent after being stirred and shrunk by the final stirring and shrunk component (111) is transported into the slurry tank (2).

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