Dosing equipment

Abstract

The utility model provides dosing equipment. The dosing equipment comprises a dosing device and a flow adjusting assembly, the dosing device comprises a magnetic vortex pump, a first pipeline and a second pipeline, one end of the first pipeline is communicated with a liquid inlet of the magnetic vortex pump, one end of the second pipeline is communicated with a liquid outlet of the magnetic vortex pump, and the other end of the second pipeline is communicated with the flotation equipment; the flow adjusting assembly comprises a flow adjusting part and a third pipeline, one end of the third pipeline is communicated with a liquid outlet of the magnetic vortex pump, the other end of the third pipeline is communicated with the first pipeline, the flow adjusting part is arranged on the second pipeline, and the third pipeline is arranged between the liquid outlet of the magnetic vortex pump and the flow adjusting part. According to the chemical adding equipment, the change range of the chemical adding amount can be expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of ore dressing and dosing, in particular to a dosing device. Background Art

[0002] Flotation is one of the most important mineral processing methods. According to statistics, 90% of non-ferrous metal ores are processed by flotation. Flotation is also widely used in the selection of rare metals, precious metals, ferrous metals, non-metallic materials such as coal and other mineral raw materials. The addition of flotation reagents is an important link in the flotation production process. The amount of addition and its accuracy directly affect the quantity, quality and benefits of the product. Traditional dosing equipment usually changes the dosage by changing the frequency of the pump or by using different types of pumps in combination. When the dosage is changed by changing the frequency of the pump, the range of change of the dosage is small and cannot meet the needs of multiple scenarios. When the dosage is changed by using different types of pumps in combination, it leads to too many dosing equipment structures and increases a lot of maintenance costs. Utility Model Content

[0003] In view of this, the purpose of the present invention is to overcome the deficiencies in the prior art and to provide a dosing device that can expand the range of variation of the dosing amount.

[0004] The utility model provides the following technical solutions:

[0005] The dosing equipment according to the embodiment of the utility model includes: a dosing device, the dosing device includes a magnetic vortex pump, a first pipeline and a second pipeline, one end of the first pipeline is connected to the liquid inlet of the magnetic vortex pump, one end of the second pipeline is connected to the liquid outlet of the magnetic vortex pump, and the other end of the second pipeline is connected to a flotation device; a flow regulating component, the flow regulating component includes a flow regulating member and a third pipeline, one end of the third pipeline is connected to the liquid outlet of the magnetic vortex pump, and the other end of the third pipeline is connected to the first pipeline, the flow regulating member is arranged on the second pipeline, and the third pipeline is arranged between the liquid outlet of the magnetic vortex pump and the flow regulating member; wherein, a pipeline opening regulating member is arranged on the third pipeline.

[0006] The dosing equipment of the utility model has the following advantages:

[0007] In the above-mentioned dosing equipment, the reagent enters into the above-mentioned dosing equipment through the first pipeline, and then enters into the flotation equipment through the second pipeline. Since the liquid inlet of the magnetic vortex pump is connected to the first pipeline, and the liquid outlet of the magnetic vortex pump is connected to the second pipeline, the dosing flow rate from the first pipeline to the second pipeline can be adjusted by adjusting the frequency of the magnetic vortex pump, so as to control the dosing flow rate entering the flotation equipment. Since a flow regulating member is provided on the second pipeline, the dosing flow rate in the second pipeline can be further adjusted by controlling the flow regulating member, so as to expand the adjustment range of the dosing flow rate in the second pipeline. At the same time, since one end of the third pipeline is connected to the outlet of the magnetic vortex pump, the dosing flow rate in the second pipeline can be further adjusted by controlling the flow regulating member. The liquid port is connected, and the other end of the third pipeline is connected to the first pipeline, and the third pipeline is arranged between the liquid outlet of the magnetic vortex pump and the flow regulating member. Therefore, a part of the medicine flowing into the second pipeline from the liquid outlet of the magnetic vortex pump can flow back to the first pipeline via the third pipeline. In this way, the size of the medicine flow in the third pipeline can be changed by the pipeline opening regulating member to further change the size of the dosing flow in the second pipeline, so as to further expand the adjustment range of the dosing flow in the second pipeline. In this way, the above-mentioned dosing equipment can expand the adjustment range of the dosing flow in the second pipeline through the cooperation of the magnetic vortex pump, the flow regulating member and the third pipeline, so that the above-mentioned dosing equipment can meet the use requirements of multiple scenarios.

[0008] According to the dosing device of the embodiment of the utility model, the magnetic vortex pump includes an impeller assembly, the impeller assembly includes a driven shaft, a first impeller and a second impeller, the first impeller is fixedly sleeved on the driven shaft, the second impeller is movably sleeved on the first impeller, and the second impeller is threadedly connected to the first impeller;

[0009] Wherein, the driven shaft rotates along a first direction, the second impeller and the first impeller are tightened with each other along a second direction, and the second direction is opposite to the first direction.

[0010] According to the dosing device of the embodiment of the utility model, the first impeller includes a first hub and a plurality of first blades, the first hub is fixedly mounted on the driven shaft, and the plurality of first blades are arranged on the surface of the first hub at intervals along the circumference of the first hub, the second impeller includes a second hub and a plurality of second blades, the second hub is movably mounted on the first hub, and the second hub is threadedly connected to the first hub, the plurality of second blades are arranged on the surface of the second hub close to the first blades at intervals along the circumference of the second hub, and each of the second blades is arranged between any two adjacent first blades.

[0011] According to the dosing equipment of the embodiment of the utility model, the magnetic vortex pump also includes a guide member, which approaches or moves away from the second impeller along the radial direction of the driven shaft. When the guide member approaches the second impeller, the guide member is movably connected to the axial surface of the second impeller, and the second impeller moves axially along the driven shaft relative to the guide member.

[0012] According to the dosing equipment of the embodiment of the utility model, the guide member is provided with a guide portion and two limiting portions, the guide portion approaches or moves away from the second impeller along the radial direction of the driven shaft, the two limiting portions are arranged at intervals at one end of the guide member close to the second impeller to define a guide space, and the second impeller is provided with a plurality of guide grooves at intervals on its axial surface, when the guide member approaches the second impeller, each limiting portion is penetrated into any one of the guide grooves, and the part of the second impeller located between the two limiting portions is penetrated in the guide space along the axial direction of the driven shaft.

[0013] According to the dosing device of the embodiment of the utility model, the dosing device further comprises an impurity removal device, and the liquid outlet of the impurity removal device is connected to an end of the first pipeline away from the magnetic vortex pump.

[0014] According to the dosing equipment of the embodiment of the utility model, the impurity removal device includes an impurity removal cylinder and a filter cylinder, the impurity removal cylinder is provided with a first inlet, an outlet and a slag discharge port, the slag discharge port is arranged in front of the first inlet and the outlet along the third direction, the filter cylinder is arranged inside the impurity removal cylinder, and the filter cylinder is arranged between the first inlet and the outlet, the filter cylinder is provided with a second inlet, the second inlet is arranged at an angle to the third direction, and the end of the second inlet close to the outlet is located in front of the outlet along the third direction, and the end of the second inlet close to the first inlet is located behind the first inlet along the third direction.

[0015] According to the dosing equipment of the embodiment of the utility model, the impurity removal device also includes a spiral conveyor, which is arranged inside the impurity removal cylinder and penetrates the filter cylinder through the second inlet. The spiral conveyor rotates around the third direction, the spiral line of the spiral conveyor is a right-handed spiral line, and the front end of the spiral conveyor along the third direction is located at the slag discharge port.

[0016] According to the dosing equipment of the embodiment of the utility model, the impurity removal device also includes an air blowing assembly, which includes an outer cover, a partition plate, an air bag and an air nozzle. The outer cover is fixedly arranged on the outer wall of the impurity removal barrel, and the outer cover is arranged at one end of the impurity removal barrel away from the slag discharge port along the third direction. The partition plate is arranged inside the outer cover to define an air blowing chamber and a sealing chamber inside the outer cover. The air bag is fixedly arranged in the sealing chamber, and the air blowing chamber and the end of the sealing chamber away from the impurity removal barrel are both provided with air inlet holes. The air nozzle is fixedly arranged on the inner wall of the impurity removal barrel, and the air nozzle is arranged at one end of the impurity removal barrel away from the slag discharge port along the third direction and is located between the outer wall of the filter barrel and the air bag, and the air nozzle is communicated with the sealing chamber.

[0017] According to the dosing device of the embodiment of the utility model, the flow regulating component further comprises a flow meter, the flow meter is arranged on the second pipeline, and the flow meter is arranged at an end of the flow regulating member away from the magnetic vortex pump.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram showing the structure of a dosing device according to an embodiment of the utility model is shown;

[0021] Figure 2 A schematic cross-sectional view of a magnetic vortex pump according to an embodiment of the present utility model is shown;

[0022] Figure 3 Shows Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 4 A schematic diagram showing the structure of an impeller assembly according to an embodiment of the utility model is shown;

[0024] Figure 5 Shows Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0025] Figure 6 A schematic diagram showing the structure of the guide member of an embodiment of the utility model is shown;

[0026] Figure 7 The structure diagram of the impurity removal device according to the embodiment of the utility model is shown;

[0027] Figure 8 Shows Figure 7 Schematic diagram of the enlarged structure at point C in the middle.

[0028] Description of main component symbols:

[0029] 100-dosing device; 110-magnetic vortex pump; 111-impeller assembly; 1111-driven shaft; 1112-first impeller; 1112a-first hub; 1112b-first blade; 1113-second impeller; 1113a-second hub; 1113b-second blade; 1113c-guide groove; 1114-flow channel; 112-guide member; 1121-guide portion; 1122-limiting portion ;1123-guide space;113-first driving member;114-driving shaft;115-magnetic component;1151-first magnetic member;1152-second magnetic member;1153-third magnetic member;1154-isolation protection member;116-isolation component;1161-isolation sleeve;1162-isolation end cover;117-housing;1171-avoidance groove;120-first pipeline;130-second pipeline;

[0030] 200-flow regulating assembly; 210-flow regulating member; 220-third pipeline; 221-pipeline opening regulating member; 230-flow meter;

[0031] 300-impurity removal device; 310-impurity removal cylinder; 311-first inlet; 312-outlet; 313-slag discharge port; 320-filter cylinder; 321-second inlet; 330-screw conveyor; 340-second driving member; 350-air blowing assembly; 351-outer cover; 3511-air blowing chamber; 3512-sealing chamber; 3513-air inlet; 352-partition plate; 353-air bag; 354-air nozzle; 360-pressure detection member. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the template herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0037] Reference Figure 1 As shown, the dosing equipment involved in the embodiment of the utility model includes: a dosing device 100 and a flow regulating component 200.

[0038] Specifically, the dosing device 100 includes a magnetic vortex pump 110, a first pipeline 120 and a second pipeline 130, one end of the first pipeline 120 is connected to the liquid inlet of the magnetic vortex pump 110, one end of the second pipeline 130 is connected to the liquid outlet of the magnetic vortex pump 110, and the other end of the second pipeline 130 is connected to the flotation device; the flow regulating component 200 includes a flow regulating member 210 and a third pipeline 220, one end of the third pipeline 220 is connected to the liquid outlet of the magnetic vortex pump 110, and the other end of the third pipeline 220 is connected to the first pipeline 120, the flow regulating member 210 is arranged on the second pipeline 130, and the third pipeline 220 is arranged between the liquid outlet of the magnetic vortex pump 110 and the flow regulating member 210; wherein, the third pipeline 220 is provided with a pipeline opening regulating member 221.

[0039] It should be noted that, in the above-mentioned embodiment, the flow regulating member 210 is a back-pressure valve, which is a valve that can be used to adjust the pipeline pressure and flow. The pressure regulating screw and spring on the back-pressure valve apply a certain pressure to the agent through the diaphragm. When the flow pressure and flow rate of the agent in the second pipeline 130 exceed the set pressure, the diaphragm and the spring can be lifted, and the agent can flow out from the outlet of the back-pressure valve. Therefore, the back-pressure valve can preliminarily limit the maximum flow rate of the dosing equipment; and the back-pressure valve has the function of avoiding the siphoning phenomenon of the high liquid level agent in the medicine storage box (not shown) connected to the dosing equipment, thereby avoiding excessive addition.

[0040] Furthermore, in the above-mentioned embodiment, the pipeline opening adjustment member 221 is a valve, and the flow rate of the medicine in the third pipeline 220 can be adjusted by adjusting the opening of the valve.

[0041] In the above-mentioned dosing device, the medicine enters the above-mentioned dosing device through the first pipeline 120, and then enters the flotation device through the second pipeline 130. Since the liquid inlet of the magnetic vortex pump 110 is connected to the first pipeline 120, and the liquid outlet of the magnetic vortex pump is connected to the second pipeline 130, the dosing flow rate from the first pipeline 120 to the second pipeline 130 can be adjusted by adjusting the frequency of the magnetic vortex pump, so as to control the dosing flow rate entering the flotation device. Since the second pipeline 130 is provided with a flow regulating member 210, the dosing flow rate in the second pipeline 130 can be further adjusted by controlling the flow regulating member 210, so as to adjust the adjustment range of the dosing flow rate in the second pipeline 130. At the same time, since one end of the third pipeline 220 is connected to the liquid outlet of the magnetic vortex pump 110, The other end of the third pipeline 220 is connected to the first pipeline 120, and the third pipeline 220 is arranged between the liquid outlet of the magnetic vortex pump 110 and the flow regulating member 210. Therefore, a part of the medicine flowing into the second pipeline 130 from the liquid outlet of the magnetic vortex pump 110 can flow back to the first pipeline 120 via the third pipeline 220. In this way, the size of the medicine flow in the third pipeline 220 can be changed by the pipeline opening regulating member 221 to further change the size of the dosing flow in the second pipeline 130, so as to further expand the adjustment range of the dosing flow in the second pipeline 130. In this way, the above-mentioned dosing equipment can expand the adjustment range of the dosing flow in the second pipeline 130 through the cooperation of the magnetic vortex pump 110, the flow regulating member 210 and the third pipeline 220, so as to enable the above-mentioned dosing equipment to meet the usage requirements of multiple scenarios.

[0042] Reference Figure 4 as well as Figure 5 As shown, the magnetic vortex pump 110 includes an impeller assembly 111, and the impeller assembly 111 includes a driven shaft 1111, a first impeller 1112 and a second impeller 1113. The first impeller 1112 is fixedly mounted on the driven shaft 1111, and the second impeller 1113 is movably mounted on the first impeller 1112, and the second impeller 1113 is threadedly connected to the first impeller 1112; wherein the driven shaft 1111 rotates along a first direction, and the second impeller 1113 and the first impeller 1112 are tightened with each other along a second direction, and the second direction is opposite to the first direction.

[0043] It should be noted that the first direction is Figure 1 The direction indicated by x, the second direction is Figure 1 The direction opposite to the direction indicated by x.

[0044] Specifically, in the above-mentioned embodiment, the first impeller 1112 , the second impeller 1113 and the driven shaft 1111 are coaxially arranged.

[0045] Furthermore, in the above-mentioned embodiment, when the reagent enters the magnetic vortex pump 110 from the liquid inlet of the magnetic vortex pump 110 through the first pipeline 120, the reagent can be rotated around the first impeller 1112 in a first direction by the first impeller 1112, and then enter the second pipeline 130 through the liquid outlet of the magnetic vortex pump 110. In this way, the flow rate of the reagent entering the second pipeline 130 can be increased by the first impeller 1112, so that the reagent can enter the flotation device through the second pipeline 130.

[0046] It can be understood that, since the driven shaft 1111 rotates in the first direction and the first impeller 1112 is fixedly sleeved on the driven shaft 1111, the driven shaft 1111 can drive the first impeller 1112 to rotate in the first direction. Since the second impeller 1113 is movably sleeved on the first impeller 1112 and the second impeller 1113 is threadedly connected to the first impeller 1112, when the driven wheel drives the first impeller 1112 to rotate in the first direction, the second impeller 1113 can be moved on the first impeller 1112. It rotates relative to the first impeller 1112 and moves along the axial direction of the first impeller 1112. Furthermore, since the second impeller 1113 and the first impeller 1112 are tightened together along the second direction, when the driven shaft 1111 drives the first impeller 1112 to rotate along the first direction, it can be ensured that the first impeller 1112 and the second impeller 1113 have no axial movement and are tightened together. In this way, the second impeller 1113 can be prevented from falling off from the first impeller 1112, thereby improving the structural stability of the impeller assembly 111.

[0047] Reference Figure 5 As shown, the first impeller 1112 includes a first hub 1112a and a plurality of first blades 1112b, the first hub 1112a is fixedly mounted on the driven shaft 1111, and the plurality of first blades 1112b are arranged on the surface of the first hub 1112a at intervals along the circumference of the first hub 1112a, and the second impeller 1113 includes a second hub 1113a and a plurality of second blades 1113b, the second hub 1113a is movably mounted on the first hub 1112a, and the second hub 1113a is threadedly connected to the first hub 1112a, and the plurality of second blades 1113b are arranged on the surface of the second hub 1113a close to the first blades 1112b at intervals along the circumference of the second hub 1113a, and each second blade 1113b is arranged between any two adjacent first blades 1112b.

[0048] It can be understood that since the multiple second blades 1113b are arranged at circumferential intervals along the second hub 1113a on the surface of the second hub 1113a close to the first blade 1112b, and each second blade 1113b is arranged between any two adjacent first blades 1112b, a flow channel 1114 is formed between any two adjacent first blades 1112b and the second blades 1113b. When the driven shaft 1111 moves along the first direction, the medicine can be brought into the flow channel 1114 by the first blades 1112b and the second blades 1113b, so that the medicine flows in the multiple flow channels 1114, thereby making the medicine into a turbulent state, thereby increasing the kinetic energy of the medicine and improving the flow speed of the medicine in the second pipeline 130.

[0049] Reference Figure 2 as well as Figure 6 As shown, the magnetic vortex pump 110 also includes a guide member 112, which approaches or moves away from the second impeller 1113 along the radial direction of the driven shaft 1111. When the guide member 112 approaches the second impeller 1113, the guide member 112 is movably connected to the second impeller 1113 along its axial surface, and the second impeller 1113 moves axially along the driven shaft 1111 relative to the guide member 112.

[0050] Specifically, in the above-mentioned embodiments, referring to Figure 2 as well as Figure 3 As shown, the magnetic vortex pump 110 also includes a first driving member 113, a driving shaft 114 and a magnetic assembly 115, the magnetic assembly 115 includes a first magnetic member 1151, a second magnetic member 1152 and a third magnetic member 1153, the first driving member 113 is drivingly connected to the driving shaft 114, the first magnetic member 1151 is fixedly connected to the driven shaft 1111, the second magnetic member 1152 is fixedly connected to the driving shaft 114, and the second magnetic member 1152 is sleeved on the first magnetic member 1151 and does not contact each other, the third magnetic member 1153 is sleeved on the second magnetic member 1152 and does not contact each other, when the first driving member 113 drives the driving shaft 114 to rotate, the second magnetic member 1152 can rotate with the driving shaft 11 4 is rotated, so as to drive the first magnetic member 1151 to rotate through the rotation of the second magnetic member 1152, thereby driving the driven shaft 1111 to rotate through the rotation of the first magnetic member 1151, and further making the second impeller 1113 and the first impeller 1112 rotate following the driven shaft 1111, and the second impeller 1113 and the first impeller 1112 maintain relative motion; when the driving shaft 114 stops rotating, manually rotate the third magnetic member 1153, so as to drive the second magnetic member 1152 to rotate through the rotation of the third magnetic member 1153, and further drive the third magnetic member 1153 to rotate through the rotation of the second magnetic member 1152, thereby driving the driven shaft 1111 to rotate through the rotation of the third magnetic member 1153.

[0051] Further, in the above-mentioned embodiment, referring to Figure 2 as well as Figure 3 As shown, the magnetic vortex pump 110 also includes a shell 117, a first magnetic component 1151 and a second magnetic component 1152 are both arranged in the shell 117, an avoidance groove 1171 is opened on the shell 117, a third magnetic component 1153 is inserted into the avoidance groove 1171, and the third magnetic component 1153 rotates around the active shaft 114 in the avoidance groove 1171, and the outer surface of the third magnetic component 1153 at least partially protrudes from the outside of the shell 117 to facilitate manual rotation of the third magnetic component 1153, and the magnetic component 115 also includes an isolation protective component 1154, and the isolation protective component 1154 is covered on the outer surface of the third magnetic component 1153, so that the avoidance groove 1171 and the third magnetic component 1153 are both hidden in the isolation protective component 1154, so that the magnetic component 115 can be isolated from the external environment through the isolation protective component 1154 to avoid magnetic leakage.

[0052] More specifically, in the above-mentioned embodiment, the first driving member 113 is a variable frequency motor.

[0053] It can be understood that when the guide member 112 is close to the second impeller 1113, since the guide member 112 is movably connected to the second impeller 1113 along its axial surface, and the second impeller 1113 moves axially along the driven shaft 1111 relative to the guide member 112, the rotation of the second impeller 1113 relative to the first impeller 1112 can be limited by the guide member 112, so that the second impeller 1113 can move axially on the first impeller 1112 relative to the first impeller 1112 through the rotation of the first impeller 1112 relative to the second impeller 1113.

[0054] Reference Figure 6 As shown, the guide member 112 is provided with a guide portion 1121 and two limiting portions 1122. The guide portion 1121 approaches or moves away from the second impeller 1113 along the radial direction of the driven shaft 1111. The two limiting portions 1122 are arranged at intervals at one end of the guide member 112 close to the second impeller 1113 to define a guide space 1123. The second impeller 1113 is provided with a plurality of guide grooves 1113c at intervals on its axial surface. When the guide member 112 approaches the second impeller 1113, each limiting portion 1122 is penetrated into any one of the guide grooves 1113c, and the portion of the second impeller 1113 located between the two limiting portions 1122 is penetrated into the guide space 1123 along the axial direction of the driven shaft 1111.

[0055] Specifically, in the above-mentioned embodiment, a plurality of guide grooves 1113c are arranged at intervals on the surface of the second hub 1113a along the axial direction thereof, and the two limiting portions 1122 are respectively disposed in two adjacent guide grooves 1113c.

[0056] It can be understood that when the concentration of the medicine is high and the number of medicine particles increases, the viscosity of the medicine will also increase. At this time, the width of the flow channel 1114 needs to be changed. At this time, the interior of the magnetic vortex pump 110 is flushed, and then the magnetic vortex pump 110 is powered off as a whole to stop the rotation of the driving shaft 114, and then the guide member 112 is moved close to the second impeller 1113 along the radial direction of the driven shaft 1111, so that each limiting portion 1122 can be inserted into any one of the guide grooves 1113c, so that the rotation of the second impeller 1113 is limited by the cooperation of the two limiting portions 1122 and the guide grooves 1113c, and the second impeller 1113 is located between the two limiting portions 1122 and the guide grooves 1113c. The portion between 22 can be inserted into the guide space 1123 along the axial direction of the first impeller 1112, and then the third magnetic member 1153 is rotated to drive the driven shaft 1111 and the first impeller 1112 to rotate through the second magnetic member 1152 and the first magnetic member 1151 in turn, and the second impeller 1113 can move along the axial direction of the first impeller 1112 until each second blade 1113b is fitted with any first blade 1112b adjacent to it, so as to reduce the number of flow channels 1114 and increase the width of the flow channels 1114, which is conducive to the passage of large-particle fluids, so as to be suitable for media with high density, high viscosity and large-particle impurities.

[0057] Specifically, in the above-mentioned embodiment, the width of the flow channel 1114 can be increased by adjusting the number of the first blades 1112b and the second blades 1113b.

[0058] More specifically, in the above-mentioned embodiment, the first blade 1112b and the second blade 1113b have the same shape so that the first blade 1112b can fit with the second blade 1113b, and in the axial direction of the driven shaft 1111, the width of each first blade 1112b is smaller than the width of each second blade 1113b, so that the first blade 1112b and the second blade 1113b will not separate when the first blade 1112b and the second blade 1113b fit together.

[0059] Further, in the above-mentioned embodiment, referring to Figure 2As shown, the magnetic vortex pump 110 also includes an isolation component 116, which includes an isolation sleeve 1161 and an isolation end cover 1162. The isolation sleeve 1161 is sleeved on the first magnetic component 1151, and the isolation sleeve 1161 is located between the first magnetic component 1151 and the second magnetic component 1152, so that the second magnetic component 1152 is isolated from the medicine through the isolation sleeve 1161 to prevent the second magnetic component 1152 from being contaminated by the medicine. The isolation end cover 1162 is sleeved on the driven shaft 1111, and the isolation end cover 1162 is covered on the isolation sleeve 1161, so that the first magnetic component 1151 can be located between the isolation sleeve 1161 and the isolation end cover 1162, so that the first magnetic component 1151 is isolated from the medicine through the isolation end cover 1162 to prevent the first magnetic component 1151 from being contaminated by the medicine, thereby extending the service life of the magnetic vortex pump 110.

[0060] Reference Figure 1 As shown, the dosing equipment further includes an impurity removal device 300 , and a liquid outlet of the impurity removal device 300 is connected to an end of the first pipeline 120 away from the magnetic vortex pump 110 .

[0061] It is understandable that since the liquid outlet of the impurity removal device 300 is connected to the end of the first pipeline 120 away from the magnetic vortex pump 110, impurities in the medicine can be removed by the impurity removal device 300 before the medicine enters the magnetic vortex pump 110 through the first pipeline 120.

[0062] Reference Figure 7 As shown, the impurity removing device 300 includes an impurity removing cylinder 310 and a filter cylinder 320. The impurity removing cylinder 310 is provided with a first inlet 311, an outlet 312 and a slag discharge port 313. The slag discharge port 313 is arranged in front of the first inlet 311 and the outlet 312 along the third direction. The filter cylinder 320 is arranged inside the impurity removing cylinder 310, and the filter cylinder 320 is arranged between the first inlet 311 and the outlet 312. The filter cylinder 320 is provided with a second inlet 321, and the second inlet 321 is arranged at an angle to the third direction, and the end of the second inlet 321 close to the outlet 312 is located in front of the outlet 312 along the third direction, and the end of the second inlet 321 close to the first inlet 311 is located behind the first inlet 311 along the third direction.

[0063] It should be noted that the third party Figure 7 The direction that y points to.

[0064] Specifically, in the above-mentioned embodiment, the first inlet 311 is the liquid inlet of the impurity removing device 300 , and the outlet 312 is the liquid outlet of the impurity removing device 300 .

[0065] Furthermore, in the above-mentioned embodiment, the filter cartridge 320 is made of a filter mesh.

[0066] It can be understood that since the filter cartridge 320 is arranged inside the impurity removal cartridge 310 and the filter cartridge 320 is arranged between the first inlet 311 and the outlet 312, the medicine entering the impurity removal cartridge 310 through the first inlet 311 can enter the filter cartridge 320, and the medicine filtered by the filter cartridge 320 can enter the first pipeline 120 through the outlet 312. Since the end of the second inlet 321 of the filter cartridge 320 close to the outlet 312 is located in front of the outlet 312 along the third direction, and the end of the second inlet 321 of the filter cartridge 320 close to the first inlet 311 is located behind the first inlet 311 along the third direction, when the medicine enters the impurity removal cartridge 310 through the first inlet 311, it can be ensured that the medicine can enter the filter cartridge 320 through the second inlet 321, and it can be ensured that the medicine flowing out of the impurity removal cartridge 310 from the outlet 312 has been filtered by the filter cartridge 320, thereby improving the impurity removal rate of the impurity removal device 300. Furthermore, since the slag discharge port 313 is arranged in front of the first inlet 311 and the outlet 312 along the third direction, the slag in the filter cylinder 320 can be moved along the third direction and discharged out of the impurity removal cylinder 310 through the slag discharge port 313 to avoid accumulation of slag in the impurity removal cylinder 310.

[0067] Continue to refer to Figure 7 As shown, the impurity removal device 300 also includes a spiral conveyor 330, which is arranged inside the impurity removal cylinder 310 and penetrates the filter cylinder 320 through the second inlet 321. The spiral conveyor 330 rotates around a third direction, the spiral line of the spiral conveyor 330 is a right-handed spiral line, and the front end of the spiral conveyor 330 along the third direction is located at the slag discharge port 313.

[0068] Specifically, in the above-mentioned embodiments, referring to Figure 7 As shown, the impurity removal device 300 also includes a second driving member 340, which is drivingly connected to the spiral conveying member 330, and the second driving member 340 can drive the spiral conveying member 330 to rotate clockwise around a third direction, so that the slag can move spirally on the spiral conveying member 330 along the third direction.

[0069] It can be understood that since the spiral conveying member 330 rotates about the third direction, and in the third direction, the end of the spiral line of the spiral conveying member 330 close to the outlet 312 is located behind the end of the spiral line of the spiral conveying member 330 close to the slag discharge port 313, therefore, when the spiral conveying member 330 rotates about the third direction, the slag in the filter barrel 320 can adhere to the spiral conveying member 330 and move spirally along the third direction on the spiral conveying member 330, so as to transport the slag to the slag discharge port 313 through the spiral conveying member 330, and discharge it out of the removal barrel 310 through the slag discharge port 313, thereby avoiding the accumulation of slag in the filter barrel 320.

[0070] Specifically, in the above-mentioned embodiments, referring to Figure 7 As shown, the impurity removal device 300 further includes an air blowing assembly 350 to prevent flocculent or large particle impurities from adhering to the inner wall of the filter cartridge 320 or sinking to the bottom of the filter cartridge 320 after filtration.

[0071] More specifically, in the above-mentioned embodiments, referring to Figure 7 as well as Figure 8 As shown, the air blowing assembly 350 includes an outer cover 351, a partition plate 352, an air bag 353 and an air nozzle 354. The outer cover 351 is fixedly arranged at the bottom of the outer wall of the impurity removal barrel 310, and the partition plate 352 is arranged inside the outer cover 351 to divide the interior of the outer cover 351 into an air blowing chamber 3511 and a sealing chamber 3512. The air bag 353 is fixedly arranged in the sealing chamber 3512. The air blowing chamber 3511 and the sealing chamber 3512 are both provided with an air inlet hole 3513 at one end away from the impurity removal barrel 310, and the air blowing chamber 3511 is provided with an air inlet hole 3513. The air inlet 3513 of the cavity 3511 is connected to the normally open valve of the two-position five-way valve (not shown), and the air inlet 3513 of the sealed cavity 3512 is connected to the normally closed valve of the two-position five-way valve. The air nozzle 354 is fixedly arranged at the bottom of the inner wall of the impurity removal cylinder 310 and is connected to the sealed cavity 3512. The air nozzle 354 is located between the outer bottom wall of the filter cylinder 320 and the air bag 353, and the air nozzle 354 is arranged near the outlet 312. The two-position five-way valve is electrically connected to the control system (not shown). When the above-mentioned dosing device is dosing, The normally open valve of the two-position five-way valve is opened, and the normally closed valve of the two-position five-way valve is closed. At this time, air can be introduced into the air blowing chamber 3511 to compress the air bag 353, so that the gas in the sealing chamber 3512 enters the impurity removal barrel 310 through the air nozzle 354, so as to blow the impurities on the inner wall and bottom of the filter barrel 320 upwards, avoid the impurities from agglomerating in the filter barrel 320, and facilitate the slag discharge of the spiral conveyor 330. The outer wall of the impurity removal barrel 310 is installed with a pressure detection component 360 for detecting the pressure of the filter barrel. When the pressure detecting component 360 detects that the degree of impurity blockage in the filter cartridge 320 exceeds a preset value, the pressure detecting component 360 sends a signal to the control system for control through the control system. When the above-mentioned dosing equipment is disabled, the two-position five-way valve can be switched to close the normally open valve of the two-position five-way valve and open the normally closed valve of the two-position five-way valve. At this time, air can be introduced into the sealing chamber 3512 to expand the airbag 353 to block the air nozzle 354, thereby stopping the air intake in the filter cartridge 320.

[0072] Reference Figure 1 As shown, the flow regulating assembly 200 further includes a flow meter 230 , which is disposed on the second pipeline 130 , and the flow meter 230 is disposed at one end of the flow regulating member 210 away from the magnetic vortex pump 110 .

[0073] It should be noted that medicines are generally corrosive and contain particulate matter, which can cause pipeline blockage, affect the suction pressure, and result in a decrease in the output amount of medicine. Therefore, traditional dosing equipment needs to be calibrated frequently and cannot determine the dosage in real time.

[0074] It can be understood that since the flow meter 230 is arranged on the second pipeline 130, and the flow meter 230 is arranged at the end of the flow regulating member 210 away from the magnetic vortex pump 110, the dosing flow rate on the second pipeline 130 after passing through the flow regulating member 210 can be displayed in real time by the flow meter 230, so as to adjust the dosing flow rate in real time without manual calibration and adjustment, and the dosing amount can be determined in real time, thereby improving the accuracy of the dosing amount of the above-mentioned dosing equipment and the timeliness of the adjustment.

[0075] In summary, the above-mentioned dosing equipment achieves high precision, wide range, and no calibration is required. It is not affected by the properties of the suspended particles and viscosity of the reagent medium, and realizes automated and precise dosing control of the mineral processing process. At the same time, the dosing machine is based on the vortex principle of magnetic drive. By adjusting the number of blades and the area of ​​the grooves between the blades, it is suitable for media with high density, high viscosity, and large impurities.

[0076] A dosing method according to an embodiment of the present utility model is applied to the above-mentioned dosing device, comprising:

[0077] S100: Control the magnetic vortex pump 110 to start at the maximum frequency;

[0078] S200: Determine the pressure value of the flow regulating member 210 according to the preset maximum dosing flow rate;

[0079] S300: adjusting the opening of the third pipeline 220 through the pipeline opening adjustment member 221 so that the flow rate in the second pipeline 130 is greater than the preset maximum dosing flow rate;

[0080] S400: Determine the operating frequency of the magnetic vortex pump 110 according to the required dosing flow rate;

[0081] S500: When the magnetic vortex pump 110 is adjusted to the lowest frequency and still cannot reduce the flow rate to the required dosing flow rate, the flow rate is reduced by adjusting the pressure of the flow regulating member 210 and the opening of the third pipeline 220 .

[0082] Specifically, in the above-mentioned embodiment, in S300, the opening of the third pipeline 220 is adjusted by the pipeline opening adjustment member 221 so that the flow value in the second pipeline 130 is between 1.1 times and 1.5 times the preset maximum dosing flow value, thereby further expanding the variation range of the dosing flow of the above-mentioned dosing equipment.

[0083] Furthermore, in the above embodiment, in S400 , the maximum frequency of the magnetic vortex pump 110 is 50 Hz. In order to extend the service life of the magnetic vortex pump 110 , the minimum frequency of the magnetic vortex pump 110 is not less than 10 Hz.

[0084] Furthermore, in the above embodiment, in S400, when the operating frequency of the magnetic vortex pump 110 is determined according to the required dosing flow rate, the pressure value of the flow regulating member 210 and the opening of the third pipeline 220 remain unchanged.

[0085] Furthermore, in the above-mentioned embodiment, the control system controls the magnetic vortex pump 110 to change the frequency so as to improve the dosing accuracy.

[0086] In the above-mentioned dosing method, under the condition that the frequency of the magnetic vortex pump 110 is the maximum frequency, the maximum dosing flow rate of the above-mentioned dosing equipment can be determined by adjusting the pressure value of the flow regulating member 210 and the opening of the third pipeline 220, and by adjusting the opening of the third pipeline 220, the maximum dosing flow rate is greater than the preset maximum dosing flow rate, thereby expanding the variation range of the dosing flow rate of the above-mentioned dosing equipment. Further, after determining the maximum dosing flow rate, the dosing flow rate of the above-mentioned dosing equipment can be reduced by adjusting the frequency of the magnetic vortex pump 110, thereby determining the frequency of the magnetic vortex pump 110 according to the required dosing flow rate, so as to facilitate real-time adjustment of the dosing flow rate according to actual working conditions. When the magnetic vortex pump 110 is adjusted to the lowest frequency and still cannot reduce the flow rate to the required dosing flow rate, the flow rate is reduced by adjusting the pressure of the flow regulating member 210 and the opening of the third pipeline 220. In this way, the minimum flow value of the dosing flow rate can be further reduced, thereby expanding the variation range of the dosing flow rate. In this way, the above-mentioned dosing method can expand the range of change of the dosing amount.

[0087] Specifically, the above-mentioned dosing method can achieve an ultra-wide adjustment range of 1:200, solving the problem that the dosage of the agent in the mineral processing process fluctuates widely and cannot be automatically controlled. At the same time, the flow meter 230 is configured to realize closed-loop control, truly realizing calibration-free dosing.

[0088] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limiting, and thus other examples of the exemplary embodiments may have different values.

[0089] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0090] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A dosing device, characterized in that: include: A dosing device, the dosing device comprising a magnetic vortex pump, a first pipeline and a second pipeline, one end of the first pipeline is connected to the liquid inlet of the magnetic vortex pump, one end of the second pipeline is connected to the liquid outlet of the magnetic vortex pump, and the other end of the second pipeline is connected to the flotation device; A flow regulating component, the flow regulating component comprising a flow regulating member and a third pipeline, one end of the third pipeline being connected to the liquid outlet of the magnetic vortex pump, the other end of the third pipeline being connected to the first pipeline, the flow regulating member being arranged on the second pipeline, and the third pipeline being arranged between the liquid outlet of the magnetic vortex pump and the flow regulating member; Wherein, a pipeline opening adjustment member is provided on the third pipeline.

2. The dosing device according to claim 1, characterized in that: The magnetic vortex pump comprises an impeller assembly, the impeller assembly comprises a driven shaft, a first impeller and a second impeller, the first impeller is fixedly sleeved on the driven shaft, the second impeller is movably sleeved on the first impeller, and the second impeller is threadedly connected to the first impeller; Wherein, the driven shaft rotates along a first direction, the second impeller and the first impeller are tightened with each other along a second direction, and the second direction is opposite to the first direction.

3. The dosing device according to claim 2, characterized in that: The first impeller includes a first hub and a plurality of first blades, the first hub is fixedly mounted on the driven shaft, and the plurality of first blades are arranged on the surface of the first hub at intervals along the circumference of the first hub. The second impeller includes a second hub and a plurality of second blades, the second hub is movably mounted on the first hub, and the second hub is threadedly connected to the first hub, the plurality of second blades are arranged on the surface of the second hub close to the first blades at intervals along the circumference of the second hub, and each of the second blades is arranged between any two adjacent first blades.

4. The dosing device according to claim 2, characterized in that: The magnetic vortex pump also includes a guide member, which approaches or moves away from the second impeller along the radial direction of the driven shaft. When the guide member approaches the second impeller, the guide member is movably connected to the axial surface of the second impeller, and the second impeller moves axially along the driven shaft relative to the guide member.

5. The dosing device according to claim 4, characterized in that: The guide member is provided with a guide portion and two limiting portions, the guide portion approaches or moves away from the second impeller along the radial direction of the driven shaft, the two limiting portions are arranged at intervals at one end of the guide member close to the second impeller to define a guide space, and the second impeller is provided with a plurality of guide grooves at intervals on its axial surface, when the guide member approaches the second impeller, each limiting portion is penetrated into any one of the guide grooves, and the part of the second impeller located between the two limiting portions is penetrated in the guide space along the axial direction of the driven shaft.

6. The dosing device according to any one of claims 1 to 5, characterized in that: The dosing equipment further comprises an impurity removal device, wherein a liquid outlet of the impurity removal device is connected to an end of the first pipeline away from the magnetic vortex pump.

7. The dosing device according to claim 6, characterized in that: The impurity removal device includes an impurity removal cylinder and a filter cylinder. The impurity removal cylinder is provided with a first inlet, an outlet and a slag discharge port. The slag discharge port is arranged in front of the first inlet and the outlet along a third direction. The filter cylinder is arranged inside the impurity removal cylinder and between the first inlet and the outlet. The filter cylinder is provided with a second inlet, which is arranged at an angle to the third direction, and an end of the second inlet close to the outlet is located in front of the outlet along the third direction, and an end of the second inlet close to the first inlet is located behind the first inlet along the third direction.

8. The dosing device according to claim 7, characterized in that: The impurity removal device also includes a spiral conveyor, which is arranged inside the impurity removal cylinder and penetrates the filter cylinder through the second inlet. The spiral conveyor rotates around the third direction, the spiral line of the spiral conveyor is a right-handed spiral line, and the front end of the spiral conveyor along the third direction is located at the slag discharge port.

9. The dosing device according to claim 7, characterized in that: The impurity removal device also includes an air blowing assembly, which includes an outer cover, a partition plate, an air bag and an air nozzle. The outer cover is fixedly arranged on the outer wall of the impurity removal barrel, and the outer cover is arranged at one end of the impurity removal barrel away from the slag discharge port along the third direction. The partition plate is arranged inside the outer cover to define an air blowing chamber and a sealing chamber inside the outer cover. The air bag is fixedly arranged in the sealing chamber, and the air blowing chamber and the end of the sealing chamber away from the impurity removal barrel are both provided with air inlet holes. The air nozzle is fixedly arranged on the inner wall of the impurity removal barrel, and the air nozzle is arranged at one end of the impurity removal barrel away from the slag discharge port along the third direction and is located between the outer wall of the filter barrel and the air bag, and the air nozzle is communicated with the sealing chamber.

10. The dosing device according to any one of claims 1 to 5, characterized in that: The flow regulating component further comprises a flow meter, which is arranged on the second pipeline and arranged at an end of the flow regulating member away from the magnetic vortex pump.

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