Automatic feeding floatation machine for coal washing plant
By introducing connecting plates, reciprocating screws, and other structures into the automatic feeding flotation machine used in coal washing plants, multi-point addition and mixing of reagents can be achieved, solving the problems of high equipment cost and poor practicality, and improving the degree of automation and clean coal recovery efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEILONGJIANG LONGMAY HEGANG MINING CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-07-10
AI Technical Summary
Existing automatic feeding flotation machines used in coal washing plants are expensive and not suitable for small and medium-sized enterprises to purchase. The equipment is also bulky and has poor practicality.
By employing a combination of connecting plates, reciprocating lead screws, reciprocating lead screw sleeves, and fixing blocks, the system enables multi-point addition of chemicals within the machine body via the feeding pipe, eliminating the need for multiple dosing pumps. Combined with the transmission components and stirring rod structure, it achieves the mixing and timed, quantitative addition of chemicals.
It reduced equipment manufacturing and procurement costs, improved automation and practicality, and enhanced the efficiency of clean coal recovery.
Smart Images

Figure CN224475133U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flotation machines, and more specifically, to an automatic feeding flotation machine for coal washing plants. Background Technology
[0002] Automatic feeding flotation machines in coal washing plants are key equipment for coal separation. Through an automatic feeding system, the amount of reagent added is precisely controlled, ensuring thorough mixing with the slurry before entering the flotation cell. An air compressor generates bubbles, causing coal particles to float while gangue and other impurities sink, thus separating coal from impurities. These machines feature high automation, excellent separation efficiency, and low reagent consumption, effectively improving clean coal recovery rates and reducing production costs, playing a vital role in the coal washing process.
[0003] However, some existing coal washing plants use automatic feeding flotation machines, which typically have 2-3 fixed dosing points (such as the impeller area and the foam area) to achieve multi-point dosing. Therefore, multiple dosing pumps are required, which increases the procurement cost. In addition, multiple pumps require independent configuration of motors, controllers, pipelines and valves, which also increases the cost and is not conducive to the procurement of small and medium-sized enterprises. Furthermore, multiple pumps require independent reagent storage tanks and pipeline supports, which also increases the overall size of the equipment and makes it less practical in actual use.
[0004] Therefore, we have made improvements to this and proposed an automatic feeding flotation machine for coal washing plants. Utility Model Content
[0005] The purpose of this invention is to solve the problem of inconvenience in using automatic feeding flotation machines in some coal washing plants.
[0006] To achieve the above-mentioned objectives and improve the aforementioned problems, this utility model provides an automatic feeding flotation machine for coal washing plants, comprising a machine body, a storage tank fixedly connected to the rear surface of the machine body, a through groove on the upper surface of the machine body, a connecting block slidably connected inside the through groove, a feeding pipe fixedly sleeved inside the connecting block, a first connecting pipe provided on the upper side of the feeding pipe, a rotating flange provided between the first connecting pipe and the feeding pipe, a pump body fixedly connected to the lower surface of the storage tank, a second connecting pipe fixedly connected to the lower side of the pump body, the second connecting pipe and the first connecting pipe being connected by a flexible hose, a solenoid valve provided inside the second connecting pipe, a connecting plate fixedly connected to the upper surface of the machine body, a guide groove on the surface of the connecting plate, a reciprocating screw rotatably connected inside the guide groove, a reciprocating screw sleeve provided outside the reciprocating screw, a fixing block fixedly connected outside the reciprocating screw sleeve, the fixing block and the connecting block being fixedly connected, and a connecting assembly provided on the upper surface of the machine body.
[0007] As a preferred technical solution of this application, a transmission rod is provided on the surface of the machine body, the lower end of the transmission rod rotatably penetrates into the interior of the machine body, and a transmission wheel is fixedly connected to the upper end of the transmission rod.
[0008] As a preferred technical solution of this application, the connecting assembly includes a connecting box, the interior of which is hollow, an extension rod is rotatably connected to the left side surface of the connecting box, the left end of the extension rod rotatably penetrates into the interior of the connecting plate, the left end of the extension rod is fixedly connected to the right end of the reciprocating lead screw, and the right end of the extension rod rotatably penetrates into the interior of the connecting box.
[0009] As a preferred technical solution of this application, a rotating rod is rotatably connected to the upper surface of the connecting box, and the lower end of the rotating rod rotatably penetrates into the interior of the connecting box. Both the rotating rod and the extension rod are fixedly fitted with bevel gears at their ends inside the connecting box, and the two bevel gears are meshed together.
[0010] As a preferred technical solution of this application, a first transmission assembly is provided on the outside of the transmission rod on the right and the outside of the rotating rod. The first transmission assembly includes two sprockets and a chain. The two sprockets are respectively fixedly sleeved on the outside of the transmission rod and the rotating rod on the right, and the chain is engaged with the outside of the two sprockets.
[0011] As a preferred technical solution of this application, a stirring rod is rotatably connected inside the storage box, and the vertical rod of the stirring rod rotatably extends through the interior of the storage box. A connecting rod is rotatably connected to the upper surface of the storage box, and the connecting rod and the stirring rod are fixedly connected. A second transmission assembly is provided outside the transmission rod and the connecting rod on the left side.
[0012] As a preferred technical solution of this application, the second transmission assembly also includes two sprockets and a chain. The two sprockets are respectively fixedly sleeved on the outside of the left transmission rod and the connecting rod, and the chain is engaged with the outside of the two sprockets.
[0013] As a preferred technical solution of this application, a first feeding port is fixedly connected to the outside of the storage box, and a second feeding port is fixedly connected to the upper surface of the storage box.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] In the scheme of this application:
[0016] 1. By coordinating the connecting plate, reciprocating screw, reciprocating screw sleeve, fixing block, connecting block, and other structures, the feed pipe can add reagents to different positions inside the machine body without the need for multiple dosing pumps, greatly reducing the overall manufacturing and procurement costs of the equipment. At the same time, thanks to the coordination between the first transmission component, rotating rod, bevel gear, extension rod, and other structures, no additional drive is required, allowing the flotation machine's own drive shaft to automatically move the feed pipe while mixing the internal coal particles and slurry, further improving the practicality and automation of the device.
[0017] 2. By coordinating the storage tank, stirring rod, connecting rod, and second transmission assembly, the reagents can be mixed and stirred synchronously during the operation of the flotation machine, thereby improving the subsequent coal particle washing effect, further enhancing the practicality of the device, and increasing the efficiency of subsequent clean coal recovery. Attached Figure Description
[0018] Figure 1 This is a structural schematic diagram of the automatic feeding flotation machine for coal washing plants provided in this application;
[0019] Figure 2 This is a cross-sectional structural diagram of the automatic feeding flotation machine for coal washing plants provided in this application;
[0020] Figure 3 This is a cross-sectional structural diagram of the connecting box in the automatic feeding flotation machine for coal washing plants provided in this application;
[0021] Figure 4 This is a schematic diagram of the lower structure of the storage tank in the automatic feeding flotation machine for coal washing plants provided in this application;
[0022] Figure 5 This is a cross-sectional structural diagram of the storage tank in the automatic feeding flotation machine for coal washing plants provided in this application.
[0023] The image shows:
[0024] 1. Machine body; 2. Storage tank; 3. Through groove; 4. Connecting block; 5. Feeding pipe; 6. First connecting pipe; 7. Rotating flange; 8. Second connecting pipe; 9. Connecting plate; 10. Guide groove; 11. Reciprocating screw; 12. Reciprocating screw sleeve; 13. Fixing block; 14. Transmission rod; 15. Transmission wheel; 16. Connecting box; 17. Extension rod; 18. Rotating rod; 19. Bevel gear; 20. First transmission assembly; 21. Stirring rod; 22. Second transmission assembly; 23. Connecting rod; 24. First feeding port; 25. Second feeding port; 26. Pump body; 27. Solenoid valve. Detailed Implementation
[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0026] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0029] Example 1
[0030] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 An automatic feeding flotation machine for a coal washing plant includes a body 1. A storage tank 2 is fixedly connected to the rear surface of the body 1. A through groove 3 is formed on the upper surface of the body 1. A connecting block 4 is slidably connected inside the through groove 3. A feeding pipe 5 is fixedly sleeved inside the connecting block 4. A first connecting pipe 6 is provided on the upper side of the feeding pipe 5. A rotating flange 7 is provided between the first connecting pipe 6 and the feeding pipe 5. A pump body 26 is fixedly connected to the lower surface of the storage tank 2. A second connecting pipe 8 is fixedly connected to the lower side of the pump body 26. The second connecting pipe 8 and the first connecting pipe 6 are connected by a flexible hose. The internal part is equipped with a solenoid valve 27. A connecting plate 9 is fixedly connected to the upper surface of the machine body 1. A guide groove 10 is opened on the surface of the connecting plate 9. A reciprocating screw 11 is rotatably connected inside the guide groove 10. A reciprocating screw sleeve 12 is provided outside the reciprocating screw 11. The reciprocating screw sleeve 12 cooperates with the spiral groove on the surface of the reciprocating screw 11 through an internal guide element, so that the reciprocating screw sleeve 12 can reciprocate along the axial direction of the reciprocating screw 11. A fixing block 13 is fixedly connected to the outside of the reciprocating screw sleeve 12. The fixing block 13 and the connecting block 4 are fixedly connected. A connecting assembly is provided on the upper surface of the machine body 1.
[0031] Furthermore, such as Figure 1 , Figure 2 , Figure 3, Figure 4 , Figure 5 As shown, a transmission rod 14 is provided on the surface of the machine body 1. The lower end of the transmission rod 14 rotates and penetrates into the interior of the machine body 1. An impeller is provided at the lower end of the transmission rod 14. A transmission wheel 15 is fixedly connected to the upper end of the transmission rod 14. The transmission wheel 15 is connected to an external drive device, thereby realizing the rotation of the transmission rod 14 and thus realizing the stirring of the material inside the machine body 1.
[0032] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the connecting assembly includes a connecting box 16, which is hollow inside. An extension rod 17 is rotatably connected to the left side surface of the connecting box 16. The left end of the extension rod 17 rotatably penetrates into the interior of the connecting plate 9. The left end of the extension rod 17 is fixedly connected to the right end of the reciprocating screw 11. The right end of the extension rod 17 rotatably penetrates into the interior of the connecting box 16.
[0033] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a rotating rod 18 is rotatably connected to the upper surface of the connecting box 16. The lower end of the rotating rod 18 rotates through into the interior of the connecting box 16. Both the rotating rod 18 and the extension rod 17 are fixedly fitted with bevel gears 19 at one end inside the connecting box 16. The two bevel gears 19 are meshed together.
[0034] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a first transmission assembly 20 is provided on the outside of the right transmission rod 14 and the outside of the rotating rod 18. The first transmission assembly 20 includes two sprockets and a chain. The two sprockets are respectively fixedly sleeved on the outside of the right transmission rod 14 and the rotating rod 18. The chain is meshed and connected to the outside of the two sprockets. By setting the first transmission assembly 20, when the external drive device drives the right transmission rod 14 to rotate, the rotating rod 18 can be driven to rotate synchronously by the first transmission assembly 20, so that no additional drive is required.
[0035] Example 2
[0036] The automatic feeding flotation machine for coal washing plants provided in Example 1 has been further optimized, specifically, as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, a stirring rod 21 is rotatably connected inside the storage tank 2. The vertical rod of the stirring rod 21 rotatably passes through the interior of the storage tank 2. A connecting rod 23 is rotatably connected to the upper surface of the storage tank 2. The connecting rod 23 and the stirring rod 21 are fixedly connected. A second transmission assembly 22 is provided outside the left transmission rod 14 and the connecting rod 23.
[0037] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the second transmission assembly 22 also includes two sprockets and a chain. The two sprockets are fixedly sleeved on the outside of the left transmission rod 14 and the connecting rod 23, respectively, and the chain is engaged with the outside of the two sprockets.
[0038] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a first feeding port 24 is fixedly connected to the outside of the storage tank 2, and a second feeding port 25 is fixedly connected to the upper surface of the storage tank 2. The first feeding port 24 facilitates the addition of solid agents, and the second feeding port 25 facilitates the addition of liquid agents. Subsequently, the internal stirring rod 21 facilitates the mixing of different agents.
[0039] The operation process of the automatic feeding flotation machine for coal washing plants provided by this utility model is as follows:
[0040] First, the workers add the coal particles to be sorted into the machine body 1. Then, the reagent is added into the storage tank 2 through the first feed port 24 and the second feed port 25. Subsequently, the transmission wheel 15 drives the transmission rod 14 to rotate through the external control device, thereby driving the impeller of the machine body 1 to rotate, so as to achieve the mixing of coal particles and slurry inside. At the same time, the air compressor is used to generate bubbles inside the machine body, so that the coal particles attach to the bubbles and float to the top, while gangue and other impurities sink to the bottom, thus achieving the separation of coal and impurities.
[0041] When the left transmission rod 14 rotates, the connecting rod 23 can be driven to rotate by the second transmission component 22. The rotation of the connecting rod 23 drives the rotation of the stirring rod 21, thereby achieving the mixing of the medicine inside the storage box 2 and ensuring the mixing effect of the medicine.
[0042] When the right transmission rod 14 rotates, the rotation rod 18 can be driven to rotate by the first transmission assembly 20. The rotation of the rotation rod 18 and the transmission of the two bevel gears 19 can drive the rotation of the extension rod 17. The rotation of the extension rod 17 can drive the rotation of the reciprocating screw 11. The rotation of the reciprocating screw 11 can drive the reciprocating screw sleeve 12 to move back and forth inside the guide groove 10. The movement of the reciprocating screw sleeve 12 and the movement of the fixed block 13 can drive the movement of the connecting block 4. The movement of the connecting block 4 can drive the feeding pipe 5 to move inside the through groove 3. Subsequently, through the cooperation between the pump body 26, solenoid valve 27, second connecting pipe 8 hose, first connecting pipe 6 and rotating flange 7, the medicine can be added to the inside of the machine body 1 in a timely and quantitative manner from the inside of the feeding pipe 5. During the feeding process, the feeding pipe 5 will always move back and forth, thereby achieving the purpose of multi-point drug addition.
[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0044] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.
Claims
1. An automatic feeding flotation machine for a coal washing plant, characterized in that, Includes a body (1), a storage box (2) fixedly connected to the rear surface of the body (1), a through groove (3) opened on the upper surface of the body (1), a connecting block (4) slidably connected inside the through groove (3), a feeding pipe (5) fixedly sleeved inside the connecting block (4), a first connecting pipe (6) provided on the upper side of the feeding pipe (5), a rotating flange (7) provided between the first connecting pipe (6) and the feeding pipe (5), a pump body (26) fixedly connected to the lower surface of the storage box (2), a second connecting pipe (8) fixedly connected to the lower side of the pump body (26), the second connecting pipe (8) 8) is connected to the first connecting pipe (6) via a hose. The second connecting pipe (8) is equipped with a solenoid valve (27). A connecting plate (9) is fixedly connected to the upper surface of the machine body (1). A guide groove (10) is opened on the surface of the connecting plate (9). A reciprocating screw (11) is rotatably connected inside the guide groove (10). A reciprocating screw sleeve (12) is provided outside the reciprocating screw (11). A fixing block (13) is fixedly connected outside the reciprocating screw sleeve (12). The fixing block (13) and the connecting block (4) are fixedly connected. A connecting assembly is provided on the upper surface of the machine body (1).
2. The automatic feeding flotation machine for a coal washing plant according to claim 1, characterized in that, The surface of the body (1) is provided with a transmission rod (14), the lower end of the transmission rod (14) rotates through into the interior of the body (1), and the upper end of the transmission rod (14) is fixedly connected to a transmission wheel (15).
3. The automatic feeding flotation machine for a coal washing plant according to claim 2, characterized in that, The connecting assembly includes a connecting box (16), which is hollow inside. An extension rod (17) is rotatably connected to the left side surface of the connecting box (16). The left end of the extension rod (17) rotatably penetrates into the interior of the connecting plate (9). The left end of the extension rod (17) is fixedly connected to the right end of the reciprocating screw (11). The right end of the extension rod (17) rotatably penetrates into the interior of the connecting box (16).
4. The automatic feeding flotation machine for a coal washing plant according to claim 3, characterized in that, A rotating rod (18) is rotatably connected to the upper surface of the connecting box (16). The lower end of the rotating rod (18) rotates through into the interior of the connecting box (16). A bevel gear (19) is fixedly sleeved at one end of the rotating rod (18) and the extension rod (17) inside the connecting box (16). The two bevel gears (19) are meshed together.
5. An automatic feeding flotation machine for a coal washing plant according to claim 4, characterized in that, A first transmission assembly (20) is provided on the outside of the right transmission rod (14) and the outside of the rotating rod (18). The first transmission assembly (20) includes two sprockets and a chain. The two sprockets are respectively fixedly sleeved on the outside of the right transmission rod (14) and the rotating rod (18), and the chain is meshed and connected to the outside of the two sprockets.
6. An automatic feeding flotation machine for a coal washing plant according to claim 5, characterized in that, The storage tank (2) is rotatably connected to a stirring rod (21), and the vertical rod of the stirring rod (21) rotates through the interior of the storage tank (2). The upper surface of the storage tank (2) is rotatably connected to a connecting rod (23), and the connecting rod (23) and the stirring rod (21) are fixedly connected. A second transmission assembly (22) is provided on the outside of the transmission rod (14) and the connecting rod (23) on the left side.
7. An automatic feeding flotation machine for a coal washing plant according to claim 6, characterized in that, The second transmission assembly (22) also includes two sprockets and a chain. The two sprockets are fixedly sleeved on the outside of the left transmission rod (14) and the connecting rod (23), respectively, and the chain is engaged with the outside of the two sprockets.
8. An automatic feeding flotation machine for a coal washing plant according to claim 7, characterized in that, The storage box (2) is fixedly connected to the outside of a first feeding port (24), and the upper surface of the storage box (2) is fixedly connected to a second feeding port (25).