Coal washing flotation device

Abstract

The utility model discloses a coal washing flotation device which comprises a flotation box, a discharging assembly, a solvent supplementing assembly, a stirring assembly, a reciprocating extrusion assembly and a bubble introducing assembly, and the stirring assembly is arranged on the flotation box; the reciprocating extrusion assembly comprises a sealing shell, a reciprocating piston, an air inlet pipe and a one-way liquid extrusion valve, and the sealing shell is fixedly arranged on the flotation box; the reciprocating piston is in sliding sealing connection with the sealing shell; the stirring assembly is respectively in rotating sealing connection with the sealing shell and the reciprocating piston; the reciprocating piston divides the sealing shell into a liquid squeezing chamber and an air squeezing chamber; the air inlet pipe is communicated with the air extrusion chamber and is provided with a one-way air inlet valve; the one-way liquid squeezing valve is communicated with the liquid squeezing chamber; the solvent supplementing assembly is communicated with the liquid squeezing chamber; the bubble introduction assemblies are arranged on the air inlet pipe and the flotation box correspondingly. Therefore, the coal washing agent can be added and bubbles can be generated in the stirring process, so that the use cost of the device and the labor intensity of related personnel are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coal processing, in particular to a coal washing flotation device. Background Art

[0002] Coal washing and flotation is a commonly used coal processing process, which aims to separate impurities and minerals in coal through washing and flotation processes to improve coal quality and utilization rate.

[0003] In this process, coal is mixed with water and coal washing agent, and stirred to disperse or dissolve impurities on the surface of the coal. Subsequently, the bubble generating device generates bubbles, which are attached to the surface of the coal, and flotation is achieved by utilizing the density difference between the coal and the impurities. However, in order to generate bubbles, it is usually necessary to set up an additional bubble generating device, which increases the equipment cost, and it is also necessary to manually add the coal washing agent multiple times, which increases the labor intensity of the relevant personnel. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] Therefore, the purpose of the utility model is to provide a coal washing flotation device, which can add coal washing agent and generate bubbles during the stirring process, thereby reducing the use cost of the device and the labor intensity of related personnel.

[0006] To achieve the above-mentioned purpose, the utility model proposes a coal washing flotation device, comprising a flotation box, a feeding assembly, a solvent replenishing assembly, a stirring assembly, a reciprocating extrusion assembly and a bubble introduction assembly, wherein a bracket is arranged on the flotation box; the stirring assembly is arranged on the bracket; the reciprocating extrusion assembly comprises a sealing shell, a reciprocating piston, an air inlet pipe and a one-way liquid squeezing valve, wherein the sealing shell is fixedly arranged on the flotation box; the reciprocating piston is slidingly and sealingly connected to the sealing shell, and the reciprocating screw rod arranged in the stirring assembly is rotationally and sealingly connected to the sealing shell, and is rotationally and sealingly connected to the reciprocating piston; the reciprocating piston separates the sealing shell into a liquid squeezing chamber and an air squeezing chamber; one end of the air inlet pipe is connected to the air squeezing chamber, and the other end of the air inlet pipe extends to the outside of the flotation box and is provided with a one-way air inlet valve; the one-way liquid squeezing valve is connected to the liquid squeezing chamber; the feeding assembly is arranged on one side of the flotation box; the solvent replenishing assembly is connected to the liquid squeezing chamber; one end of the bubble introduction assembly is connected to the air inlet pipe, and the other end of the bubble introduction assembly is arranged in the flotation box.

[0007] The utility model discloses a coal washing flotation device, which can add a coal washing agent and generate bubbles during the stirring process, thereby reducing the use cost of the device and the labor intensity of related personnel.

[0008] In addition, the coal washing flotation device proposed in the present application may also have the following additional technical features:

[0009] Specifically, the stirring assembly includes a motor, a reciprocating screw and a stirring blade, wherein the motor is arranged on a bracket; one end of the reciprocating screw is connected to the output shaft of the motor, and the other end of the reciprocating screw is connected to the stirring blade; the stirring blade is arranged at the bottom of the sealed shell.

[0010] Specifically, the material discharge assembly includes a material discharge enclosure, a material discharge pipe and a material collection box, wherein the material discharge enclosure is arranged outside the flotation box; the material discharge pipe is connected to the material discharge enclosure; and the material collection box is arranged at the bottom of the material discharge pipe.

[0011] Specifically, the solvent refill assembly includes a refill tank, a refill tube and a liquid check valve, wherein the refill tank is arranged on one side of the flotation tank; one end of the refill tube is connected to the refill tank, and the other end of the refill tube is connected to the liquid squeezing chamber; the liquid check valve is arranged in the refill tube.

[0012] Specifically, the bubble introduction component includes an air outlet pipe, a gas check valve and an introduction shell, wherein one end of the air outlet pipe is connected to the air inlet pipe, and the other end of the air outlet pipe is connected to the flotation box; the gas check valve is arranged in the air outlet pipe; the introduction shell is arranged in the flotation box and covered on the air outlet pipe.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a schematic structural diagram of a coal washing flotation device according to an embodiment of the utility model;

[0016] Figure 2 This is a schematic structural diagram of a stirring assembly and a reciprocating extrusion assembly according to an embodiment of the utility model;

[0017] Figure 3 The figure is a schematic structural diagram of a bubble introduction component according to an embodiment of the utility model.

[0018] As shown in the figure: 1. flotation box; 10. bracket; 2. stirring assembly; 20. motor; 21. reciprocating screw; 22. stirring blade; 3. reciprocating extrusion assembly; 30. sealing shell; 31. reciprocating piston; 310. liquid squeezing chamber; 311. gas squeezing chamber; 32. air inlet pipe; 33. one-way air inlet valve; 34. one-way liquid squeezing valve; 4. unloading assembly; 40. unloading baffle; 41. unloading pipe; 42. collecting box; 5. solvent refilling assembly; 50. refilling tank; 51. refilling pipe; 52. liquid check valve; 6. bubble inlet assembly; 60. air outlet pipe; 61. gas check valve; 62. inlet shell. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, examples of which 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 intended to be used to explain the present invention, and should not be construed as limitations on the present invention. On the contrary, the embodiments of the present invention include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.

[0020] The coal washing flotation device of the utility model embodiment is described below with reference to the accompanying drawings.

[0021] like Figure 1-Figure 3 As shown, the coal washing flotation device of the embodiment of the utility model may include a flotation box 1, a material discharge component 4, a solvent replenishing component 5, a stirring component 2, a reciprocating extrusion component 3 and a bubble introduction component 6.

[0022] A support 10 is provided on the flotation box 1 , and the stirring assembly 2 is provided on the support 10 .

[0023] It can be understood that the stirring assembly 2 is used to stir water and coal (crushed powdered coal) into coal slurry, and then mix the coal slurry with a coal washing agent and stir to wash out clean coal, thereby realizing the coal washing flotation of the device.

[0024] The reciprocating extrusion assembly 3 may include a sealing housing 30 , a reciprocating piston 31 , an air inlet pipe 32 and a one-way extrusion valve 34 .

[0025] The sealing housing 30 is fixedly arranged on the flotation box 1 .

[0026] It should be noted that a fixed support plate is provided on the flotation box 1 described in this embodiment, the sealing shell 30 is connected to the fixed support plate, and the fixed support plate is provided to achieve the limited fixation of the flotation box 1.

[0027] The reciprocating piston 31 is slidably and sealedly connected to the sealed shell 30, and the reciprocating screw 21 provided in the stirring assembly 2 is rotationally and sealedly connected to the sealed shell 30 and the reciprocating piston 31. The reciprocating piston 31 separates the sealed shell 30 into a liquid extrusion chamber 310 and an air extrusion chamber 311.

[0028] It can be understood that, through the arrangement of the reciprocating piston 31 and the reciprocating screw 21, the sealed shell 30 can absorb the coal washing agent from the solvent replenishing assembly 5 and squeeze it into the flotation box 1. At the same time, the sealed shell 30 can squeeze the air in the sealed shell 30 into the flotation box 1, so there is no need to separately arrange a bubble generating device in the flotation box 1, thereby reducing the maintenance and use costs of the equipment.

[0029] One end of the air inlet pipe 32 is communicated with the squeezing chamber 311 , and the other end of the air inlet pipe 32 extends to the outside of the flotation box 1 and is provided with a one-way air inlet valve 33 .

[0030] It can be understood that, through the connection between the air inlet pipe 32 and the squeezing chamber 311, when the reciprocating piston 31 moves upward, the external air enters the squeezing chamber 311 from the air inlet pipe 32, and when the piston moves downward, the air cannot be discharged from the one-way air inlet valve 33, so that it enters the flotation box 1 through the bubble introduction component 6, thereby completing the generation of bubbles, thereby eliminating the need to set up a separate bubble generating device, thereby reducing the use cost of the device.

[0031] The one-way squeezing valve 34 is in communication with the squeezing chamber 310 .

[0032] It can be understood that when the piston moves upward, the one-way squeeze valve 34 opens, allowing the coal washing agent in the squeeze chamber 310 to be discharged from the one-way squeeze valve 34 into the flotation box 1, and when the piston moves downward, the one-way squeeze valve 34 closes, so that a negative pressure is formed in the squeeze chamber 310, thereby sucking the coal washing agent in the solvent replenishing component 5 into the squeeze chamber 310, thereby eliminating the need to manually add the coal washing agent to the flotation box 1 multiple times, thereby reducing the labor intensity of related personnel.

[0033] The material discharge assembly 4 is arranged at one side of the flotation box 1 , the solvent replenishment assembly 5 is connected to the squeezing chamber 310 , one end of the bubble introduction assembly 6 is connected to the air inlet pipe 32 , and the other end of the bubble introduction assembly 6 is arranged in the flotation box 1 .

[0034] It can be understood that the material discharge assembly 4 is used to collect the clean coal floated by the bubble floatation.

[0035] Specifically, in the actual operation process, the relevant personnel put water and coal into the flotation box 1 and start the device. The stirring component 2 stirs the water and coal to form a coal slurry, and drives the reciprocating screw 21 to work the reciprocating piston 31. When the reciprocating piston 31 moves downward, the air in the squeezing chamber 311 is squeezed into the bubble introduction component 6 through the air inlet pipe 32, and squeezed out from the inner bottom of the flotation box 1, and a negative pressure is formed in the squeezing chamber 310, so that the washing liquid in the solvent replenishing component 5 is The coal agent is sucked into the squeezing chamber 310. When the reciprocating piston 31 moves upward, the coal washing agent in the squeezing chamber 310 is squeezed into the flotation box 1 through the one-way squeezing valve 34, and a negative pressure is formed in the squeezing chamber 311, so that air enters the squeezing chamber 311 from the one-way air inlet valve 33. In this reciprocating motion, the floated clean coal overflows from the flotation box 1 into the feeding assembly 4, thereby realizing the coal washing and flotation of the device, reducing the labor intensity of related personnel and the use cost of the device.

[0036] In one embodiment of the present invention, Figure 1-Figure 3 As shown, the stirring assembly 2 may include a motor 20 , a reciprocating screw 21 and a stirring blade 22 .

[0037] The motor 20 is arranged on the bracket 10 , one end of the reciprocating screw 21 is connected to the output shaft of the motor 20 , and the other end of the reciprocating screw 21 is connected to the stirring blade 22 , and the stirring blade 22 is arranged at the bottom of the sealed shell 30 .

[0038] It should be noted that the stirring blade 22 described in this embodiment is a propeller blade, so that when stirring the coal slurry, it can provide a higher shear force and a uniform mixing effect.

[0039] In one embodiment of the present invention, Figure 1-Figure 3 As shown, the material discharge assembly 4 may include a material discharge enclosure 40 , a material discharge pipe 41 and a material collection box 42 .

[0040] The material discharge enclosure 40 is arranged outside the flotation box 1 , the material discharge pipe 41 is connected with the material discharge enclosure 40 , and the material collection box 42 is arranged at the bottom of the material discharge pipe 41 .

[0041] It should be noted that the material discharge enclosure 40 described in this embodiment is enclosed on the outside of the flotation box 1 to form a material receiving chamber, so as to collect and discharge the flotation clean coal overflowing from the flotation box 1.

[0042] In one embodiment of the present invention, Figure 1-Figure 3 As shown, the solvent replenishing assembly 5 may include a replenishing tank 50 , a replenishing tube 51 and a liquid check valve 52 .

[0043] The liquid replenishment tank 50 is arranged on one side of the flotation tank 1 , one end of the liquid replenishment tube 51 is connected to the liquid replenishment tank 50 , the other end of the liquid replenishment tube 51 is connected to the liquid squeezing chamber 310 , and the liquid check valve 52 is arranged in the liquid replenishment tube 51 .

[0044] It should be noted that the liquid check valve 52 described in this embodiment is a common valve body on the market, which can close the channel of the liquid replenishing pipe 51 when the piston moves upward to squeeze out the coal washing agent in the squeezing chamber 310, thereby preventing the coal washing agent in the squeezing chamber 310 from flowing back.

[0045] In one embodiment of the present invention, Figure 1-Figure 3 As shown, the bubble introduction component 6 may include a gas outlet pipe 60 , a gas check valve 61 and an introduction shell 62 .

[0046] Among them, one end of the air outlet pipe 60 is connected to the air inlet pipe 32, and the other end of the air outlet pipe 60 is connected to the flotation box 1. The gas check valve 61 is arranged in the air outlet pipe 60, and the inlet shell 62 is arranged in the flotation box 1 and covered on the air outlet pipe 60.

[0047] It should be noted that the gas check valve 61 described in this embodiment is a common valve body on the market. When the piston moves upward, it can close the channel of the air outlet pipe 60, so that negative pressure is formed in the air squeezing chamber 311, and external air can only enter from the one-way air inlet valve 33.

[0048] Specifically, in the actual operation process, the relevant personnel put water and coal into the flotation box 1 and start the device. The motor 20 drives the reciprocating screw 21 and the stirring blade 22 to rotate, stir the water and coal to form coal slurry, and drives the reciprocating screw 21 to work the reciprocating piston 31. When the reciprocating piston 31 moves downward, the air in the squeezing chamber 311 is squeezed into the outlet pipe 60 through the air inlet pipe 32, and squeezed out from the inlet shell 62 of the outlet pipe 60 covered at the inner bottom of the flotation box 1, thereby forming a large number of bubbles, and forming a negative pressure in the squeezing chamber 310, so that the liquid replenishing pipe 51 sucks the coal washing agent in the liquid replenishing tank 50 into the squeezing chamber 310.

[0049] When the reciprocating piston 31 moves upward, the coal washing agent in the squeezing liquid chamber 310 is squeezed into the flotation box 1 through the one-way squeezing liquid valve 34, and a negative pressure is formed in the squeezing air chamber 311, so that air enters the squeezing air chamber 311 from the one-way air inlet valve 33. In this reciprocating motion, the floated clean coal overflows from the flotation box 1 into the feeding assembly 4, thereby realizing the coal washing and flotation of the device, reducing the labor intensity of related personnel and the use cost of the device.

[0050] In summary, the coal washing flotation device of the embodiment of the utility model can add coal washing agent and generate bubbles during the stirring process, thereby reducing the use cost of the device and the labor intensity of related personnel.

[0051] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot 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 at least one of the features. In the description of the utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0053] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A coal washing flotation device, characterized in that: It includes a flotation box, a feeding assembly, a solvent replenishing assembly, a stirring assembly, a reciprocating extrusion assembly and a bubble introduction assembly, wherein: The flotation box is provided with a bracket; The stirring assembly is arranged on the bracket; The reciprocating extrusion assembly includes a sealing housing, a reciprocating piston, an air inlet pipe and a one-way extrusion valve, wherein: The sealing shell is fixedly arranged on the flotation box; The reciprocating piston is connected to the sealing housing in a sliding and sealing manner, and the reciprocating screw rod provided in the stirring assembly is connected to the sealing housing in a rotational and sealing manner, and is also connected to the reciprocating piston in a rotational and sealing manner; The reciprocating piston separates the sealed housing into a liquid squeezing chamber and a gas squeezing chamber; One end of the air inlet pipe is in communication with the squeezing chamber, and the other end of the air inlet pipe extends to the outside of the flotation box and is provided with a one-way air inlet valve; The one-way squeezing valve is in communication with the squeezing chamber; The material discharge assembly is arranged on one side of the flotation box; The solvent replenishing component is in communication with the squeezing chamber; One end of the bubble introduction component is communicated with the air inlet pipe, and the other end of the bubble introduction component is arranged in the flotation box.

2. The coal washing flotation device according to claim 1, characterized in that: The stirring assembly includes a motor, a reciprocating screw and a stirring blade, wherein: The motor is arranged on the bracket; One end of the reciprocating screw rod is connected to the output shaft of the motor, and the other end of the reciprocating screw rod is connected to the stirring blade; The stirring blade is arranged at the bottom of the sealed housing.

3. The coal washing flotation device according to claim 1, characterized in that: The material unloading assembly includes a material unloading enclosure, a material unloading pipe and a material collecting box, wherein: The unloading enclosure is arranged on the outside of the flotation box; The material discharge pipe is in communication with the material discharge enclosure; The material collecting box is arranged at the bottom of the material discharge pipe.

4. The coal washing flotation device according to claim 1, characterized in that: The solvent refill assembly includes a refill tank, a refill tube and a liquid check valve, wherein: The liquid replenishment tank is arranged on one side of the flotation tank; One end of the liquid infusion tube is connected to the liquid infusion tank, and the other end of the liquid infusion tube is connected to the liquid squeezing chamber; The liquid check valve is arranged in the liquid replenishing pipe.

5. The coal washing flotation device according to claim 1, characterized in that: The bubble inlet assembly comprises an air outlet pipe, a gas check valve and an inlet shell, wherein: One end of the air outlet pipe is connected to the air inlet pipe, and the other end of the air outlet pipe is connected to the flotation box; The gas check valve is arranged in the gas outlet pipe; The inlet shell is arranged in the flotation box and covers the air outlet pipe.

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