A foam pump

Abstract

This application relates to the field of centrifugal pump equipment and provides a foam pump, including a tank, a centrifugal mechanism, and a drive mechanism. The tank has an inlet, through which slurry, including foam, enters the tank. The centrifugal mechanism includes a pump body, an impeller, and a cantilever shaft. The pump body has an outlet and is connected to the tank. The impeller is disposed within the pump body. One end of the cantilever shaft is fixed to the impeller, and the other end of the cantilever shaft faces away from the tank. The drive mechanism is disposed at the other end of the cantilever shaft. When the slurry enters the tank through the inlet, the drive mechanism drives the impeller to rotate via the cantilever shaft, thereby moving the slurry relative to the tank to defoam and transporting the slurry to the outside through the outlet. Compared to traditional horizontal pumps, the foam pump in this application has stronger defoaming capabilities and is less prone to foam overflow. Furthermore, the cantilever shaft is shorter than that of existing vertical foam pumps, allowing it to withstand greater radial forces and thus adapt to faster speeds, increasing defoaming efficiency.

Description

Technical Field

[0001] This invention relates to the field of foam pump technology, and in particular to a foam pump. Background Technology

[0002] A pump is a mechanical device that transports or pressurizes fluids. A foam pump is a pump that transports fluids containing foam. With the emergence of many new processes in industrial manufacturing, mining and food processing, the production capacity and efficiency have greatly improved. However, the amount of foam in the media produced during manufacturing has also increased dramatically. For example, mineral slurries and mud contain a lot of foam due to the mixing of air. Foam pumps are needed when transporting these media.

[0003] There are currently two types of defoaming pumps on the market: horizontal foam pumps and vertical foam pumps.

[0004] Horizontal foam pumps are typically a set of horizontal pumps connected to the bottom of the tank via pipelines. However, when conveying foam slurry, especially flotation foam, the horizontal foam pump relies solely on the inlet pressure of the tank to rotate the medium inside because the conveying force is provided through the pipeline. In actual use, the flotation slurry has virtually no pressure, causing the medium inside the tank to hardly rotate. Therefore, the defoaming capacity of horizontal foam pumps is much worse than that of vertical foam pumps, often resulting in insufficient conveying capacity and easy foam overflow.

[0005] Vertical foam pumps use an impeller below the hopper to rotate the medium flowing inwards, creating relative motion between the foam particles and thus defoaming. However, the drive mechanism, such as the motor, is located above the hopper, while the flow-through components are below. The motor drives the flow-through components through a cantilever shaft that passes through the hopper. Therefore, the cantilever shaft of a vertical foam pump is typically very long. The longer the cantilever shaft, the greater the radial force required. If the foam pump rotates at high speed, the cantilever shaft may break. Consequently, vertical foam pumps are generally operated at very low speeds, resulting in insufficient throughput when conveying media such as slurry, leading to slurry overflow. This is especially true when processing large quantities of foamed slurry. The larger the foam pump hopper, the longer the cantilever shaft and the lower the speed, resulting in a large foam pump but a small throughput of foamed slurry.

[0006] In summary, existing foam pumps still have problems such as small delivery capacity and easy foam overflow when conveying foam media. Summary of the Invention

[0007] The main objective of this invention is to provide a defoaming device that addresses the problems of low foam pump capacity and easy foam overflow in existing technologies.

[0008] To solve the above-mentioned technical problems, the technical solution provided in this application is as follows:

[0009] A foam pump, comprising:

[0010] The material bin has an inlet, through which slurry enters the material bin, and the slurry includes foam.

[0011] A centrifugal mechanism includes a pump body, an impeller, and a cantilever shaft. The pump body has a discharge port and is connected to the material box. The impeller is disposed in the pump body. One end of the cantilever shaft is fixed to the impeller, and the other end of the cantilever shaft is disposed towards the end away from the material box.

[0012] The drive mechanism is located at the other end of the cantilever shaft;

[0013] When the slurry enters the hopper from the feed inlet, the drive mechanism drives the impeller to rotate through the cantilever shaft, thereby moving the slurry relative to the hopper to degas it, and then transporting the slurry to the outside from the discharge outlet.

[0014] In some embodiments, the extension direction of the cantilever shaft toward one end of the hopper points into the hopper, the impeller is provided with a plurality of blades on the side facing the hopper, and a first sealing element is provided on the side of the impeller near the pump body. The blades rotate to make the slurry flow toward the discharge port, and the first sealing element is used to prevent the slurry from leaking out from the gap between the impeller and the pump body to the cantilever shaft.

[0015] In some embodiments, the first sealing member includes a first protrusion and at least one second protrusion. When the impeller rotates, the first protrusion is disposed between the cantilever shaft and the pump body. The first and second protrusions follow the rotation of the impeller and abut against the pump body to prevent the slurry from flowing to the cantilever shaft.

[0016] In some embodiments, a second sealing element is provided between the cantilever shaft and the pump body. The second sealing element is used to prevent slurry leaking from the gap between the impeller and the pump body from leaking out of the gap between the cantilever shaft and the pump body. The second sealing element is a mechanical seal or a packing seal. When the second sealing element is a mechanical seal, a receiving cavity is formed between the second sealing element and the pump body. When the second sealing element is a packing seal, the second sealing element includes a secondary impeller shaft seal, an oil seal, or a water seal.

[0017] In some embodiments, the hopper includes a cylinder and a cone, the cylinder is disposed above the cone, the cylinder and the bottom surface of the cone are integrally formed, the cone has an opening at the apex, the pump body is connected to the opening, the cantilever shaft is perpendicularly connected to the impeller, and the extension direction of the cantilever shaft toward one end of the hopper points between the included angles of the side surface of the cone.

[0018] In some embodiments, the discharge port is horizontally positioned, the impeller is horizontally positioned and faces the bottom opening of the hopper, and the extension direction of the cantilever shaft toward one end of the hopper coincides with the centerline of the hopper.

[0019] In some embodiments, the centrifugal mechanism further includes an elastic seal and a height adjustment component. The elastic seal has a hollow channel disposed between the material bin and the pump body to conduct communication between the pump body and the material bin. The height adjustment component is sleeved on the outside of the rubber ring and is detachably connected to the material bin and / or the pump body to adjust the height of the elastic seal.

[0020] In some embodiments, the elastic seal is a rubber ring, and the adjusting assembly includes a first adjusting screw, a first adjusting member, and a second adjusting member. The first adjusting member is detachably connected to the material box, and the second adjusting member is detachably connected to the pump body. The first adjusting screw is disposed between the first adjusting member and the second adjusting member. The first adjusting member and the second adjusting member clamp the rubber ring. The height of the elastic seal is adjusted by rotating the first adjusting screw to adjust the distance between the first adjusting member and the second adjusting member.

[0021] In some embodiments, the centrifugal mechanism further includes a centrifugal base, on which the pump body is mounted on the side away from the material tank. The cantilever shaft is rotatably connected to the centrifugal base, and its end away from the impeller is driven by the drive mechanism. When the drive mechanism drives the cantilever shaft to rotate, the cantilever shaft drives the impeller to rotate within the pump body, thereby generating centrifugal force at the bottom of the material tank, which causes the slurry to move relative to the material tank to defoam and transport the slurry from the outlet to the outside.

[0022] In some embodiments, the foam pump further includes a trolley on which the centrifuge seat is mounted. When the adjustment component is removed from the hopper or centrifuge assembly, the trolley is pushed to separate the centrifuge seat or the pump body from the hopper, thereby facilitating maintenance of the centrifuge mechanism or the hopper.

[0023] Beneficial effects:

[0024] In this application, when the slurry enters through the inlet, the pressure at the inlet causes the slurry to rotate, thereby defoaming the foam in the slurry through the tank wall. Furthermore, the impeller rotation generates centrifugal force at the bottom of the tank, further driving the slurry inside the tank to rotate and defoam. Compared to traditional horizontal pumps, the foam pump in this embodiment has a stronger defoaming capacity and is less prone to foam overflow. On the other hand, one end of the cantilever shaft is fixed to the impeller, and the other end is positioned away from the tank, meaning the cantilever shaft does not pass through the tank. Therefore, the length of the cantilever shaft is not limited by the tank size. The cantilever shaft is shorter than existing vertical foam pumps and can withstand greater radial force, thus adapting to faster rotation speeds and increasing defoaming efficiency. In summary, the foam pump in this application can adapt to centrifugal force at higher rotation speeds, and the slurry inside the tank can rotate, ensuring high defoaming efficiency, thereby increasing the slurry delivery rate and preventing foam overflow. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 This is a three-dimensional view of the foam pump in the embodiment of this application.

[0027] Figure 2 This is a top view of the foam pump in an embodiment of this application.

[0028] Figure 3 for Figure 2 A cross-sectional view along the AA direction.

[0029] Figure 4 for Figure 3 An enlarged schematic diagram of the structure at point A in the middle.

[0030] Figure 5 This is a schematic diagram of the blocker in the embodiments of this application.

[0031] Figure 6 This is a top view of the impeller and cantilever shaft in an embodiment of this application.

[0032] Figure 7 for Figure 6 A cross-sectional view along the BB direction.

[0033] Figure 8 This is a schematic diagram of the impeller structure in an embodiment of this application.

[0034] Figure 9This is a schematic diagram of the structure of the impeller and blades in the embodiments of this application.

[0035] Figure 10 for Figure 2 A schematic diagram of another embodiment of the cross-section along the AA direction.

[0036] Figure 11 for Figure 10 Enlarged schematic diagram of the structure at point B.

[0037] Icon description:

[0038] 10-Foam Pump;

[0039] 1-Bin; 11-Inlet; 12-Cylinder; 13-Cone; 14-Opening;

[0040] 2-Centrifugal mechanism; 21-Pump body; 211-Discharge port; 212-Upper pump cover; 213-Lower pump cover; 214-Upper guard plate; 215-Lower guard plate; 216-Sheath; 22-Impeller; 221-Blade; 2211-First blade; 2212-Second blade; 222-First sealing element; 223-First protrusion; 224-Second protrusion; 225-Mounting groove; 226-First groove; 23-Cantilever shaft; 24-Centrifugal base; 241-Bearing body; 242-Bearing body support;

[0041] 3-Drive mechanism; 31-Drive motor; 32-Conveyor belt; 33-Driving wheel; 34-Driven wheel.

[0042] 4-Second sealing component; 41-Receiving cavity; 42-Pressure relief cover; 421-Extension section; 422-Bent section; 423-Third protrusion; 43-Sealing disc; 431-Annular protrusion; 4311-First protrusion; 4312-Second protrusion; 432-Second groove; 44-Secondary impeller shaft seal; 45-Oil seal;

[0043] 5-Elastic seal;

[0044] 6-Height adjustment component; 61-First adjustment component; 62-Second adjustment component; 63-First adjustment screw;

[0045] 7-Trolley; 71-Carriage body; 72-Mounting base; 73-Second adjusting screw.

[0046] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0047] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0048] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0049] Furthermore, the descriptions using "first," "second," etc., in this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0050] Please see Figure 1 This application provides a foam pump 10, including a material tank 1, a centrifugal mechanism 2, and a drive mechanism 3. The material tank 1 has an inlet 11, through which slurry, including foam, enters the material tank 1. The centrifugal mechanism 2 includes a pump body 21, an impeller 22, and a cantilever shaft 23. The pump body 21 has an outlet 211 and is connected to the material tank 1. The impeller 22 is disposed in the pump body 21. One end of the cantilever shaft 23 is fixed to the impeller 22, and the other end of the cantilever shaft 23 is disposed away from the end of the material tank 1. The drive mechanism 3 is disposed at the other end of the cantilever shaft 23. When the slurry enters the material tank 1 from the inlet 11, the drive mechanism 3 drives the impeller 22 to rotate through the cantilever shaft 23, thereby moving the slurry relative to the material tank 1 to defoam and transporting the slurry to the outside from the outlet 211.

[0051] In this embodiment, when the slurry enters the hopper from the feed inlet 11, the pressure at the feed inlet 11 causes the slurry to rotate, thereby defoaming the foam in the slurry through the wall of the hopper 1. Furthermore, the impeller 22 rotates at the bottom of the hopper 1 to generate centrifugal force, which further drives the slurry in the hopper 1 to rotate and defoam.

[0052] Compared to traditional horizontal foam pumps, the foam pump 10 in this embodiment has stronger defoaming capabilities and is less prone to foam overflow. Furthermore, one end of the cantilever shaft 23 is fixed to the impeller 22, and the other end is positioned away from the material tank 1. That is, the cantilever shaft 23 does not pass through the material tank 1. Therefore, the length of the cantilever shaft 23 is not limited by the size of the material tank 1. The cantilever shaft 23 is shorter than that of existing vertical foam pumps 10, allowing it to withstand greater radial force and thus adapt to faster rotational speeds, increasing defoaming efficiency. In summary, the foam pump 10 in this application can adapt to centrifugal force at higher rotational speeds, and the slurry in the material tank 1 can rotate, thereby ensuring high defoaming efficiency.

[0053] Please refer to Figure 1-4 ( Figure 3-4 In this embodiment, the extension direction of the cantilever shaft 23 towards the end of the material box 1 points into the material box 1. The impeller 22 is provided with multiple blades 221 on the side facing the material box 1. The impeller 22 is provided with a first sealing element 222 on the side near the pump body 21. The blades 221 rotate to make the slurry flow centrifugally towards the discharge port 211. The first sealing element 222 is used to prevent the slurry from leaking out from the gap between the impeller 22 and the pump body 21 to the cantilever shaft 23.

[0054] Please also refer to Figure 9 In a preferred embodiment, the number of blades 221 is an even number, and each blade 221 is symmetrically arranged around the rotation axis of the impeller 22. With this arrangement, when the cantilever shaft 23 drives the blades 221 to rotate, it is not easy to generate eccentric force during rotation, thereby preventing the cantilever shaft 23 from breaking due to lateral eccentric pressure. Specifically, in this embodiment, there are 4 blades 221. In other preferred embodiments, there are 2, 6, or 8 blades 221.

[0055] Each blade 221 includes a first blade 2211. The impeller 22 is circular or polygonal. The first blade 2211 extends vertically upward from the impeller surface and extends from the outer edge of the impeller 22 towards the center of rotation of the impeller 22. The middle part of the first blade 2211 is concave and curved away from the rotation direction of the impeller 22. When the impeller 22 rotates, the first blade 2211 rotates, thereby facilitating the guidance of slurry to the discharge port 221 and reducing the vortex backflow generated by the slurry when the impeller rotates, thus reducing the lateral breaking force of the cantilever shaft. The discharge direction of the discharge port 221 is perpendicular to the rotation circumference of the impeller 22. When the impeller 22 rotates, its centrifugal force is directed towards the discharge port 221, and the slurry is guided to the discharge port 221 by the rotation of the first blade 2211.

[0056] The impeller 22 has a central region that protrudes towards the feed box 1 and transitions from the center of the impeller 22 to the outer edge of the impeller 22 so that the slurry slides to the edge of the impeller 22.

[0057] Each blade 221 also includes a second blade 2212, which is disposed on the first blade 2211. The second blade 2212 and the first blade 2211 are integrally formed. The second blade 2212 is flipped toward the edge of the impeller 22 so that the blade surface of the second blade 2212 faces the material box 1. The second blade 2212 and the first blade 2211 have an angle. By adjusting the size of the angle between the second blade 2212 and the first blade 2211, the degassing height and effect toward the material box 1 when the impeller 22 rotates can be adjusted.

[0058] In this embodiment, the blades 221 of the impeller 22 are close to the bottom of the hopper 1 and face the hopper 1, so that the blades 221 rotate. The first blade 2211 rotates and, under the action of centrifugal force in the first direction, guides the slurry towards the discharge port to transport the slurry to external equipment. The second blade 2212 rotates and provides centrifugal force towards the hopper 1 to blow into the hopper 1. Under the action of centrifugal force in the second direction, the slurry in the hopper 1 rotates, which further causes the foam in the slurry to break down, thereby reducing the amount of foam in the slurry, increasing the slurry delivery rate, and preventing foam overflow.

[0059] Compared to the cantilever shaft 23 being located inside the material box 1, the bottom of the pump body 21 of the centrifugal mechanism 2 is fully enclosed, so there is no need to consider slurry leakage. In this embodiment, since the other end of the cantilever shaft 23 is located away from the material box 1, that is, outside the material box 1, the bottom of the pump body 21 needs to be provided with an opening to accommodate the rotating cantilever shaft 23. Its bottom is not fully enclosed, so the problem of slurry leakage needs to be considered, and corresponding sealing components need to be provided. If the slurry leaks from the bottom of the pump body and comes into contact with the surface of the cantilever shaft 23, the slurry is likely to overflow to the outside along the surface of the cantilever shaft 23 and affect the rotation of the cantilever shaft and ultimately affect the service life of the cantilever shaft.

[0060] In this embodiment, a first sealing element 222 is provided, which is located near the bottom of the pump body 21 to seal the bottom outlet of the pump body 21 and prevent slurry from flowing out from the bottom of the pump body 21. The top of the cantilever shaft 23 is rotatably mounted on the first sealing element 222, separating the bottom of the pump body 21 from the cantilever shaft 23. This prevents slurry in the pump body 21 from flowing along the gap to the surface of the cantilever shaft 23, and further avoids slurry in the pump body 21 flowing to the outside through the surface of the cantilever shaft 23, thus preventing slurry overflow.

[0061] Further, please refer to Figure 3-4 , Figure 6-8 ( Figure 3-4 and Figure 7In this embodiment, the first sealing component 222 is disposed at the bottom of the impeller 22 and is integrally formed with the impeller 22. The first sealing component 222 includes a plurality of first protrusions 223 and at least one second protrusion 224. When the impeller 22 rotates, the first protrusions 223 are disposed between the cantilever shaft 23 and the pump body 21. The first protrusions 223 and the second protrusions 224 follow the rotation of the impeller 22 and move against the pump body 21 to block the slurry from flowing to the cantilever shaft 23.

[0062] In this embodiment, the first protrusion 223 protrudes toward the side away from the blade 221 to form a mounting groove 225. The top of the cantilever shaft 23 is rotatably mounted in the mounting groove 225 to separate the cantilever shaft 23 from the pump body 21, thereby preventing slurry from flowing onto the surface of the cantilever shaft 23 and damaging the cantilever shaft 23, and also preventing slurry from flowing outward along the surface of the cantilever shaft 23 to the outside. In this embodiment, the first protrusion 223 is annular, and the cantilever shaft 23 is clamped inside the first protrusion 223 to connect with the impeller 22. The second protrusion 224 is elongated and extends radially from the first protrusion 223 toward the edge of the impeller 22. In other embodiments, the second protrusion 224 is spiral or annular. The impeller 22 has a first groove 226 corresponding to the second protrusion 224. The second protrusion 224 and the first groove 226 cooperate together and rotate together with the blade 221. During the rotation, the second protrusion 224 grinds and stirs the slurry and prevents the slurry from flowing toward the first protrusion 223, reducing the risk of slurry overflow. On the other hand, during the rotation of the second protrusion 224, the centrifugal force drives the slurry toward the discharge port 211, increasing the defoaming efficiency of the slurry.

[0063] Further, please refer to Figure 3 ( Figure 3 In this embodiment (the cross-sectional lines of the motor 31 and the cantilever shaft 23 are not shown), a second sealing element 4 is provided between the cantilever shaft 23 and the pump body 21. The second sealing element 4 is used to prevent slurry leaking from the gap between the impeller 22 and the pump body 21 from leaking out through the gap between the cantilever shaft 23 and the pump body 21. In this embodiment, the second sealing element 4 is movably connected to the cantilever shaft 23, and the upper end of the second sealing element 4 is held at the bottom of the pump body 21 to prevent slurry from overflowing from all directions.

[0064] Please refer to Figure 3-4 , Figure 6-8In this embodiment, the second sealing element 4 is a mechanical seal, and a receiving cavity 41 is formed between the second sealing element 4 and the pump body 21. Assuming that there is still a small amount of slurry overflow, the receiving cavity 41 can be used to store the overflowed slurry and can be cleaned periodically. Specifically, the second sealing element 4 includes a pressure reducing cover 42 and a sealing disc 43. The pressure reducing cover 42 is held in place by the pump body 21 and is also provided with an extension section 421 extending toward the cantilever shaft 23. The extension section 421 is bent downward to form a bent section 422. The sealing disc 43 is movably sleeved on the cantilever shaft 23 and has an annular protrusion 431 on its surface in a direction away from the cantilever shaft 23. The bent section 422 engages with the annular protrusion 431 to form a closed receiving cavity.

[0065] It is worth noting that the surface of the annular protrusion 431 facing the bent section 422 is provided with a third protrusion 423 or a second groove 432, and the surface of the bent section 422 facing the annular protrusion 431 is provided with a second groove 432 or a third protrusion 423. Specifically, in this embodiment, the surface of the annular protrusion 431 facing the bent section 422 is provided with a second groove 432, and the surface of the bent section 422 facing the annular protrusion 431 is provided with a third protrusion 423. The third protrusion 423 is engaged in the second groove 432. This arrangement greatly prevents slurry from overflowing from the contact surface between the annular protrusion 431 and the bend. In this embodiment, the annular protrusion 431 includes a first protrusion 4311 and a second protrusion 4312, which are stepped. A second groove 432 is located between the first and second protrusions 4311 and 4312. When the first protrusion 223 engages with the second groove 432, the first protrusion 4311 is adjacent to the side of the bent section 422, and the surface of the second protrusion 4312 is in contact with the bottom surface of the bent section 422. Even if there is overflowing slurry, it remains within the space formed by the first protrusion 4311 and the side of the bent section 422. Because the first protrusion 4311 is higher than the second protrusion 4312, it forms a first threshold that makes it difficult for slurry to pass through. Furthermore, the first protrusion 223 engages with the second groove 432, creating a second threshold that makes it difficult for slurry to pass through. In summary, this embodiment greatly reduces slurry overflow.

[0066] In another embodiment, please refer to Figure 10 and Figure 11 (The cross-sectional lines of the motor 31 and the cantilever shaft 23 are not shown). The second sealing component 4 is a packing seal. The second sealing component 4 includes an auxiliary impeller shaft seal 44 and an oil seal 45. The cantilever shaft 23 drives the auxiliary impeller shaft seal 44 to rotate to prevent slurry from overflowing. In other embodiments, the oil seal 45 can also be replaced with a water seal or a grease seal. The water seal is a device for sealing water. It is widely used in pumps, machines and other equipment. Most of them are used in shaft drives to prevent the medium from leaking to the outside or the external medium from entering the equipment.

[0067] Please see Figure 1-5 In this embodiment, the feed box 1 includes a cylinder 12 and a cone 13. The cylinder 12 is positioned above the cone 13, and the bottom surfaces of the cylinder 12 and the cone 13 are integrally formed. The cone 13 has an opening 14 at its apex, and the pump body 21 is connected to the opening 14. The cantilever shaft 23 is perpendicularly connected to the impeller 22, and the extension direction of the cantilever shaft 23 towards one end of the feed box 1 points between the included angles of the side surfaces of the cone 13. With this configuration, the slurry enters the cylinder 12 from the feed inlet 11 and spirals into the cone 13. While spiraling in, this effectively increases the contact area between the slurry and the inner wall of the feed box 1, which is beneficial for foam collapse and ensures the stability and balance of each structure during the rotation of the slurry.

[0068] Please see Figure 3 Furthermore, the discharge port 211 is horizontally positioned, the impeller 22 is horizontally positioned and directly opposite the bottom opening 14 of the material box 1, and the extension direction of the cantilever shaft 23 towards one end of the material box 1 coincides with the centerline of the material box, that is, it points towards the high line of the cone 13. With this configuration, when the slurry reaches the bottom of the cone 13, it enters the pump body 21 through the opening 14. Since both the impeller 22 and the discharge port 211 are horizontally positioned, that is, the discharge port 211 is located in the rotation direction of the impeller 22, the slurry is efficiently discharged from the discharge port 211 under the action of the centrifugal force of the impeller 22, avoiding accumulation in the pump body 21.

[0069] Please see Figure 3-4 , Figure 7-8 In this embodiment, the centrifugal mechanism 2 further includes an elastic seal 5 and a height adjustment component 6. The elastic seal 5 has a hollow channel and is disposed between the material tank 1 and the pump body 21 to conduct communication between the pump body 21 and the material tank 1. The height adjustment component 6 is sleeved on the outside of the rubber ring and is detachably connected to the material tank 1 and / or the pump body 21 to adjust the height of the elastic seal 5. In this embodiment, the height adjustment component 6 can securely install the elastic seal 5 between the material tank 1 and the pump body 21, conduct communication between the material tank 1 and the pump body 21, ensure the stability of the slurry flow, and prevent the slurry from damaging the elastic seal 5 during the flow process. In addition, the height adjustment component 6 adjusts the distance between the pump body 21 and the bottom of the material tank 1 by adjusting the elastic seal 5, that is, adjusts the distance between the impeller 22 and the bottom of the material tank 1, thereby adjusting the magnitude of the centrifugal force at the bottom of the material tank 1.

[0070] Specifically, the elastic seal 5 is a rubber ring. The adjusting assembly includes a first adjusting screw 63, a first adjusting member 61, and a second adjusting member 62. The first adjusting member 61 is detachably connected to the material box 1, and the second adjusting member 62 is detachably connected to the pump body 21. The first adjusting screw 63 is positioned between the first adjusting member 61 and the second adjusting member 62. The first adjusting member 61 and the second adjusting member 62 clamp the rubber ring. By rotating the second adjusting screw 63, the distance between the first adjusting member 61 and the second adjusting member 62 is adjusted, thereby adjusting the height of the elastic seal 5. This configuration facilitates both the adjustment of the height of the elastic seal 5 and its installation and removal.

[0071] Please see Figure 1 , Figure 3 The centrifugal mechanism 2 also includes a centrifugal seat 24. The side of the pump body 21 away from the material tank 1 is mounted on the centrifugal seat 24. The cantilever shaft 23 is rotatably connected to the centrifugal seat 24, and the end away from the impeller 22 is driven by the drive mechanism 3. When the drive mechanism 3 drives the cantilever shaft 23 to rotate, the cantilever shaft 23 drives the impeller 22 to rotate inside the pump body 21, so that centrifugal force is generated at the bottom of the material tank 1, thereby causing the slurry to move relative to the material tank 1 to defoam and transport the slurry from the discharge port 211 to the outside. In this embodiment, the impeller 22 is mounted on the top of the cantilever shaft 23. When the impeller 22 rotates, it may bring centrifugal force and vibration to the cantilever shaft 23. Therefore, the centrifugal seat 24 at the bottom can be used to fix the cantilever shaft 23 and balance the cantilever shaft 23 to avoid damage to the cantilever shaft 23.

[0072] Please see Figure 1 , Figure 3In this embodiment, the foam pump 10 also includes a trolley 7, and the centrifugal seat 24 is mounted on the trolley 7. After the adjustment component is removed from the material tank 1 or the centrifugal assembly, the trolley 7 is pushed to separate the centrifugal seat 24 from the material tank 1, thereby facilitating the maintenance of the centrifugal mechanism 2 or the material tank 1. In this embodiment, the centrifugal seat 24 can be mounted on the trolley 7, and the pump body 21 is connected to the centrifugal seat 24, which means there is a detachable part. It can be pushed away for maintenance by the trolley 7. For example, the elastic seal 5 can be separated from the material tank 1, and the elastic seal 5 and the lower centrifugal mechanism 2 can be pushed away for maintenance by the trolley 7; the pump body 21 and the elastic seal 5 can be disassembled, and the pump body 21, centrifugal seat 24, cantilever shaft 23 and impeller 22 can be pushed away for maintenance by the trolley 7; or the centrifugal seat 24 and the pump body 21 can be separated, and the centrifugal seat 24, cantilever shaft 23 and other structures can be pushed away for maintenance by the trolley 7. It is worth noting that in this embodiment, the pump body 21 includes an upper pump cover 212, a lower pump cover 213, an upper protective plate 214, a lower protective plate 215, and a protective sleeve 216. The upper protective plate 214 and the lower protective plate 215 are detachably connected to the upper and lower sides of the protective sleeve 216, respectively, to enclose the impeller 22 inside. The upper pump cover 212 and the lower pump cover 213 are detachably connected and enclose the upper protective plate 214, the lower protective plate 215, and the protective sleeve 216 inside. It is also worth noting that the upper protective plate 214 has a through hole for penetrating the interior of the material box 1.

[0073] The centrifugal support 24 includes a bearing body 241 and a bearing body bracket 242. One end of the bearing body bracket 242 is fixed to the trolley 7, and the other end is connected to the bottom side of the pump body 21. The bearing body bracket 242 has an installation space in its center, and the bearing body 241 is installed in the installation space. The pump shaft is rotatably installed at the center of the bearing body 241. In this embodiment, the drive mechanism 3 continuously drives the cantilever shaft 23 to rotate, so that the cantilever shaft 23 rotates continuously. In this embodiment, the bearing body 241 is installed at its center by the bearing body bracket 242, and the cantilever shaft 23 is installed at the center of the bearing body 241. Even though the cantilever shaft 23 rotates continuously, the bearing body 241 and the bearing bracket in this embodiment can greatly ensure the stability of all structures in the lower part of the material box 1, and avoid the lower structure of the material box 1 from deflecting during the defoaming process of the slurry, so as to prevent the material box 1 from tilting due to uneven force.

[0074] Furthermore, the trolley 7 includes a body 71, a mounting base 72, and a second adjusting screw 73. A centrifugal seat 24 is mounted at one end of the body 71, and the mounting base 72 is mounted at the other end. The drive mechanism 3 is mounted on the mounting base 72. One end of the adjusting screw is mounted on the end of the mounting base 72 opposite to the drive mechanism 3, and the other end is mounted on the body 71 to adjust the distance between the drive mechanism 3 and the body 71. Since both the centrifugal seat 24 and the drive mechanism 3 are connected to the cantilever shaft 23, if the body 71 tip over, the cantilever shaft 23 may deflect or break, further damaging the impeller 22. Therefore, in this embodiment, adjusting the distance between the drive mechanism 3 and the body 71 can adjust the balance of the centrifugal seat 24 and the drive mechanism relative to the body 71 to prevent the body 71 from tipping over.

[0075] The drive mechanism 3 includes a drive motor 31 and a conveyor belt 32. The drive motor 31 is mounted on the mounting base 72. The output end of the drive motor 31 is provided with a drive wheel 33. The end of the cantilever shaft 23 away from the impeller 22 is provided with a driven wheel 34. The conveyor belt 32 is located at the bottom of the trolley 7 and is sleeved on the drive wheel 33 and the driven wheel 34. When the drive motor 31 drives the drive wheel 33 to rotate, the drive wheel 33 drives the driven wheel 34 to rotate through the conveyor belt 32, so that the cantilever shaft 23 rotates.

[0076] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A foam pump characterized by, The utility model relates to a slurry centrifugal device, comprising: a material box with an inlet for the slurry to enter, the slurry including foam; a centrifugal mechanism including a pump body, an impeller and a cantilever shaft, the pump body having an outlet, the pump body being in communication with the material box, the impeller being arranged in the pump body, one end of the cantilever shaft being fixed to the impeller, the other end of the cantilever shaft being arranged away from the material box, the extension direction of the cantilever shaft towards the material box being coincident with the center line of the material box; a driving mechanism arranged at the other end of the cantilever shaft; when the slurry enters the material box through the inlet, the driving mechanism drives the impeller to rotate through the cantilever shaft to drive the slurry to move relative to the material box to remove foam and to deliver the slurry from the outlet to the outside.

2. The foam pump of claim 1, wherein The extension direction of the cantilever shaft towards the material box points to the inside of the material box, a plurality of blades are arranged on the side of the impeller towards the material box, a first slurry blocking member is arranged on the side of the impeller close to the pump body, the blades rotate to make the slurry flow to the outlet, and the first slurry blocking member is used to block the slurry from leaking out from the gap between the impeller and the pump body to the cantilever shaft.

3. The foam pump of claim 2, wherein, The first slurry blocking member includes a first protrusion and at least one second protrusion, the first protrusion is arranged between the cantilever shaft and the pump body, when the impeller rotates, the first protrusion and the second protrusion rotate with the impeller and move in abutment with the pump body to block the slurry from flowing to the cantilever shaft.

4. The foam pump of claim 3, wherein, A second slurry blocking member is arranged between the cantilever shaft and the pump body, the second slurry blocking member is used to block the slurry from leaking out from the gap between the cantilever shaft and the pump body, wherein the second slurry blocking member is a mechanical seal or a packing seal, when the second slurry blocking member is a mechanical seal, a containing cavity is formed between the second slurry blocking member and the pump body, when the second slurry blocking member is a packing seal, the second slurry blocking member includes a secondary impeller shaft seal, an oil seal or a water seal.

5. The foam pump of claim 1, wherein, The material box includes a cylinder and a cone, the cylinder is arranged above the cone, the cylinder and the bottom surface of the cone are integrally formed, the top point of the cone has an opening, the pump body is in communication with the opening, the cantilever shaft is vertically connected with the impeller, and the extension direction of the cantilever shaft towards the material box points to the included angle between the side surfaces of the cone.

6. The foam pump of claim 5, wherein, The outlet is horizontally arranged, the impeller is horizontally arranged and faces the opening at the bottom of the material box.

7. The foam pump according to any one of claims 1-6, wherein, The centrifugal mechanism further includes an elastic seal and an adjusting member, the elastic seal has a hollow channel arranged between the material box and the pump body to communicate the pump body and the material box, the adjusting member is detachably connected to the material box and / or the pump body to adjust the height of the elastic seal.

8. The foam pump of claim 7, wherein, The elastic seal is a rubber ring, the height adjusting member comprises a first adjusting screw rod, a first adjusting member and a second adjusting member, the first adjusting member is detachably connected to the material box, the second adjusting member is detachably connected to the pump body, the first adjusting screw rod is arranged between the first adjusting member and the second adjusting member, the first adjusting member and the second adjusting member clamp the rubber ring, and the height of the elastic seal is adjusted by rotating the first adjusting screw rod to adjust the distance between the first adjusting member and the second adjusting member.

9. The foam pump of claim 8, wherein, The centrifugal mechanism further comprises a centrifugal seat, the pump body is installed on the centrifugal seat away from the material box, the cantilever shaft is rotatably connected to the centrifugal seat, and the end away from the impeller is in transmission with the driving mechanism, when the driving mechanism drives the cantilever shaft to rotate, the cantilever shaft drives the impeller to rotate in the pump body, so that the centrifugal force is generated at the bottom of the material box, thereby making the slurry relatively move away from the material box, defoaming and conveying the slurry from the discharge port to the outside.

10. The foam pump of claim 9, wherein, The foam pump further comprises a trolley, the centrifugal seat is installed on the trolley, when the height adjusting member is detached from the material box or the centrifugal assembly, the trolley is pushed to separate the centrifugal seat or the pump body from the material box, thereby facilitating the maintenance of the centrifugal mechanism or the material box.

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