Heavy medium floating and sinking detection device
By designing a heavy medium floating and sink detection device including a solution tank and sorting tank, using the combination of motor A and tooth plates to rotate the sorting tank and throw out moisture by centrifugation, the problems of increasing viscosity and fluidity changes caused by excessive coal sludge are solved, and efficient and accurate density detection of coal washing and selection are achieved.
Patent Information
- Application Number
- CN202510334018.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2025-06-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the coal washing and selection process, the existing heavy medium floating and sinking detection devices have problems such as excessive coal sludge, which leads to increased viscosity of heavy medium, changes in fluidity, turbulence and wear of heavy medium, which affects the sorting effect.
A heavy medium floating and sinking detection device is designed, including a solution tank and sorting tank. By setting up motor A, tooth plate A and tooth plate B, the sorting tank can rotate, use centrifugal action to throw out moisture, reduce the coal sludge content, and increase the contact between the sample and the solution through the stirring device, and promote the separation of refined coal and gangue.
The rapid removal of coal sludge in raw coal pretreatment and the rapid drying of samples are achieved, which improves the efficiency of coal washing and density detection accuracy, avoids the loss of heavy media and the reduction of sorting effect.
Smart Images
Figure CN120132993A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of coal screening equipment, and particularly relates to a heavy medium floating and sinking detection device. Background Art
[0002] The heavy medium floating and sinking device is a device that separates materials by using density differences and is widely used in the field of coal washing. The current floating and sinking detection devices mainly include a sorting tank, a feeding device, a heavy medium system, a discharging device, etc.; among them, the sorting tank provides a space for the floating and sinking separation of materials, the feeding device is used to stably supply materials into the sorting tank, the heavy medium system is used to provide floating and sinking media into the sorting tank, and the discharging device is used to discharge light products and heavy products.
[0003] Before coal washing, it is necessary to crush and screen raw coal, and wash it after crushing the raw coal to an appropriate particle size; coal slime is a substance contained in raw coal, and when its excessive presence will increase the viscosity of the heavy medium, thereby deteriorating the separation effect of clean coal and gangue; moreover, when there is too much coal slime, the fluidity of the heavy medium will change, causing unstable phenomena such as turbulence in the heavy medium, affecting the separation effect; in addition, the collision and friction between coal slime and the heavy medium will cause wear of the heavy medium particles and when the coal slime adsorbs on the surface of the heavy medium, it is easy to cause the problem of heavy medium loss. Therefore, it is of great significance to remove coal slime before coal washing.
[0004] Currently, during the heavy medium floating and sinking detection process, it is usually processed by manual cleaning, and the cleaned samples also need to have their moisture drained before floating and sinking detection; although the above method can remove the coal slime on the surface of raw coal, there is a problem of low efficiency, which is not conducive to quickly detecting the density of samples. Summary of the Invention
[0005] In view of this, the present invention provides a heavy medium floating and sinking detection device, specifically a detection device provided with a solution tank, a sorting tank, a motor A, a gear disk A, a gear disk B, and a bearing. This floating and sinking detection device has the advantages of reasonable design, strong practicability, and flexible use.
[0006] The technical solution of the present invention is as follows: A heavy medium floating and sinking detection device includes a solution tank and a sorting tank. The solution tank is sleeved outside the sorting tank, and a solution space is formed between the solution tank and the sorting tank; The sorting tank is provided with through holes, and the solution tank is provided with a liquid discharge port; A bearing is sleeved on the outer side surface of the sorting tank, and the bearing is located above the solution tank; Two support plates are evenly distributed on the outer ring of the bearing, and the support plates are fixed on the bracket; A motor A is provided on one of the support plates; a toothed disc A is sleeved on the output shaft of the motor A, and a toothed disc B is sleeved on the outer side of the sorting tank. The toothed disc B is located between the bearing and the solution tank; The toothed disc A and the toothed disc B are used in cooperation; through the cooperation of the toothed disc A and the toothed disc B, the sorting tank can rotate; During use, the crushed raw coal is placed in the sorting tank, and a cleaning solution such as water is injected into the solution tank and / or the sorting tank. Through stirring, the coal slime is separated from the coal and gangue. The separated coal slime will gradually enter the solution tank through the through holes and then be discharged through the drain port; after the cleaning is completed, driven by the motor A, the sorting tank starts to rotate, and the centrifugal force generated throws out the water in the sample, reducing the coal slime content in the sample. At the same time, it can reduce the influence of the presence of water in the sample on the density of the heavy medium. While achieving high-efficiency detection of the sample, it can also improve the accuracy of the density result.
[0007] Preferably, the bracket is a U-shaped frame, and the solution tank is located on the bracket; the arrangement of the solution tank on the bracket can better control its relative position with the sorting tank.
[0008] Preferably, there are legs between the solution tank and the bracket, and springs are sleeved outside the legs; the setting of the springs can buffer the solution tank to a certain extent, slow down the impact generated after the heavy medium enters the solution tank, and enable the heavy medium to participate in the flotation process more smoothly.
[0009] Preferably, a stirring device is provided in the sorting tank. The stirring device is used in the coal slime treatment stage and the sample flotation stage, and can make the sample better contact with the solution (water or heavy medium), improving the treatment efficiency and treatment effect.
[0010] Preferably, the stirring device includes a motor B, and the output shaft of the motor B is connected to the stirring shaft; S-shaped stirring blades are provided on the stirring shaft, and both ends and the middle of the S-shaped stirring blades are respectively connected to the stirring shaft; the setting of the S-shaped stirring blades can cause the sample settled at the bottom to move upward along its shape during the stirring process. In the stage of pretreating raw coal, it can make the coal slime quickly separate from the sample; in the floating and sinking stage, it can make the sample better contact with the heavy medium and promote the separation of clean coal and gangue; thereby effectively improving the detection efficiency and accuracy of the detection effect of the sample.
[0011] Preferably, the stirring shaft is a hollow shaft; an air supply pipe is installed at the bottom end of the stirring shaft, and the air supply pipe is communicated with the inside of the stirring shaft; nozzles are provided on the bottom surface of the air supply pipe; during use, air is sent into the air supply pipe through the stirring shaft and then discharged through the nozzles; the setting of the nozzles can bulge the raw coal or sample located on the bottom surface of the sorting tank, enabling the raw coal or sample to actively participate in the stirring process and improving the treatment efficiency.
[0012] Preferably, the nozzle is of a tapered structure, which can pressurize the incoming gas.
[0013] Preferably, telescopic devices are respectively arranged on the two support plates, and a cross plate is arranged on the two telescopic devices; the motor B is fixed on the cross plate; through the telescopic devices, the height of the stirring device can be controlled. During the flotation process, after the stirring is completed, the telescopic devices are started until the nozzle is located above the heavy medium; then it is left to stand. After the clean coal and gangue are stratified, the clean coal and gangue are collected respectively, avoiding the influence of the stirring device on the subsequent separation process.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting the solution tank and the separation tank, and setting the solution tank outside the separation tank, on the one hand, the raw coal can be soaked during the pretreatment of the raw coal, so that the coal slime can be quickly wetted and separated from the sample. On the other hand, with the action of the motor A, the liquid in the separation tank can be quickly drained, improving the efficiency and effect of the raw coal pretreatment; in addition, during the floating and sinking detection process, heavy media with different concentrations can be added into the solution tank according to requirements. For example, low-concentration heavy media are first added to wet the sample, and then the sample is centrifuged dry. The low-concentration heavy media can be quickly emptied from the liquid discharge port; then high-concentration heavy media are added to conduct the floating and sinking detection, improving the detection efficiency of the sample; by setting the motor A, the gear disk A and the gear disk B, the separation tank can be rotated, and then the raw coal and the sample can be quickly centrifuged dry, thereby improving the sample detection efficiency. The above settings make the floating and sinking detection device have the advantages of reasonable design, strong practicability and flexible use. Using this floating and sinking detection device, the sample floating and sinking detection can be directly carried out after the pretreatment of the raw coal is completed, so that the density detection of the sample can be realized quickly, efficiently and accurately. Description of the Drawings
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.
[0016] Figure 1 It is a state diagram of the telescopic device of the floating and sinking detection device when it is extended.
[0017] Figure 2 It is a state diagram of the telescopic device of the floating and sinking detection device when it is reset.
[0018] In the figure, 1 - solution tank, 2 - separation tank, 3 - through hole, 4 - liquid discharge port, 5 - valve, 6 - bearing, 7 - support plate, 8 - bracket, 9 - leg, 10 - spring, 11 - motor A, 12 - gear disk A, 13 - gear disk B, 1401 - motor B, 1402 - stirring shaft, 1403 - stirring blade, 1404 - air supply pipe, 1405 - nozzle, 15 - telescopic device, 16 - cross plate. Detailed implementation mode
[0019] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0020] Combined with Figure 1 - Figure 2 , the present invention provides a heavy medium flotation detection device, which includes a solution tank 1 and a separation tank 2. The solution tank 1 is sleeved outside the separation tank 2, and a solution space is formed between the solution tank 1 and the separation tank 2; The separation tank 2 is provided with through holes 3, the solution tank 1 is provided with a liquid discharge port 4, and a valve 5 is provided on the liquid discharge port 4; A bearing 6 is sleeved on the outer side surface of the separation tank 2, and the bearing 6 is located above the solution tank 1; Two support plates 7 are evenly distributed on the outer ring of the bearing 6, and the support plates 7 are fixed on the bracket 8; The bracket 8 is a U-shaped frame, and the solution tank 1 is located on the bottom plate of the bracket 8; the arrangement of the solution tank 1 on the bracket 8 can better control its relative position with the separation tank 2; A support leg 9 is provided between the solution tank 1 and the bracket 8, and a spring 10 is sleeved outside the support leg 9, and the spring 10 is in a compressed state; the setting of the spring 10 can generate a certain buffer for the solution tank 1, and can slow down the impact generated after the heavy medium enters the solution tank 1, so that the heavy medium can participate in the flotation process more smoothly; A motor A11 is provided on one of the support plates 7; a gear disk A12 is sleeved on the output shaft of the motor A11, and a gear disk B13 is sleeved on the outer side surface of the separation tank 2, and the gear disk B13 is located between the bearing 6 and the solution tank 1; The gear disk A12 and the gear disk B13 are used in cooperation; through the cooperation of the gear disk A12 and the gear disk B13, the separation tank 2 can rotate; A stirring device is provided in the separation tank 2, which is used in the coal slime treatment stage and the sample flotation stage, and can enable the sample to better contact with the solution (water or heavy medium), improving the treatment efficiency and treatment effect; The stirring device includes motor B1401, and the output shaft of motor B1401 is connected to the stirring shaft 1402; an S-shaped stirring blade 1403 is provided on the stirring shaft 1402, and both ends and the middle part of the S-shaped stirring blade 1403 are respectively connected to the stirring shaft 1402; the setting of the S-shaped stirring blade 1403 can cause the sample settled at the bottom to move upward along its shape during the stirring process, and during the pre-treatment of raw coal, it can make the slime quickly separate from the sample; during the floating and sinking stage, it can make the sample better contact with the heavy medium and promote the separation of clean coal and gangue; thereby effectively improving the detection efficiency of the sample and the accuracy of the detection effect. The stirring shaft 1402 is a hollow shaft; an air supply pipe 1404 is installed at the bottom end of the stirring shaft 1402, and the air supply pipe 1404 is communicated with the inside of the stirring shaft 1402; a nozzle 1405 is provided on the bottom surface of the air supply pipe 1404; during use, air is sent into the air supply pipe 1404 through the stirring shaft 1402 and then discharged through the nozzle 1405; the setting of the nozzle 1405 can bulge the raw coal or sample located on the inner bottom surface of the separation tank 2, so that the raw coal or sample actively participates in the stirring process and improves the processing efficiency; in this embodiment, the structure of the stirring shaft 1402 is prior art and will not be described in detail. The nozzle 1405 is of a tapered structure and can pressurize the incoming gas. Two telescopic devices 15 are respectively provided on the two support plates 7, and a cross plate 16 is provided on the two telescopic devices 15; in this embodiment, the telescopic device 15 is an electric push rod. The motor B1401 is fixed on the cross plate 16; through the telescopic device 15, the height of the stirring device can be controlled. During the flotation process, after the stirring is completed, the telescopic device 15 is started until the nozzle 1405 is located above the heavy medium; let it stand, and after the clean coal and gangue are stratified, the clean coal and gangue can be collected respectively, avoiding the stirring device from affecting the subsequent separation process. During use, the crushed raw coal is placed in the separation tank 2, and a cleaning solution such as water is injected into the solution tank 1 and / or the separation tank 2. Through stirring, the slime is separated from the coal and gangue. The separated slime will gradually enter the solution tank 1 through the through hole 3 and then be discharged through the drain port 4; after the cleaning is completed, driven by the motor A11, the separation tank 2 starts to rotate, and the centrifugal force generated throws out the water in the sample, reducing the slime content in the sample. At the same time, it can reduce the influence of the water in the sample on the concentration of the heavy medium, and while achieving high-efficiency detection of the sample, it can also improve the accuracy of the density result.
[0021] Although the present invention has been described in detail by reference to the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, those of ordinary skill in the art can make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions should all fall within the scope of the present invention. / Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims
1. A heavy medium floating and sinking detection device, characterized in that: It comprises a solution box and a sorting tank, wherein the solution box is sleeved on the outside of the sorting tank, and a solution space is formed between the solution box and the sorting tank; The separation tank is provided with a through hole, and the solution tank is provided with a liquid discharge port; A bearing is sleeved on the outer side of the separation tank, and the bearing is located above the solution tank; Two support plates are evenly distributed on the outer ring of the bearing, and the support plates are fixed on the bracket; A motor A is arranged on one of the support plates; a toothed disc A is sleeved on the output shaft of the motor A, a toothed disc B is sleeved on the outer surface of the sorting tank, and the toothed disc B is located between the bearing and the solution tank; The toothed disc A and the toothed disc B are used in combination.
2. The heavy medium floating and sinking detection device according to claim 1, characterized in that: The support is a U-shaped support, and the solution tank is located on the support.
3. The heavy medium floating and sinking detection device according to claim 2, characterized in that: A support leg is arranged between the solution tank and the bracket, and a spring is sleeved outside the support leg.
4. The heavy medium floating and sinking detection device according to claim 1, characterized in that: A stirring device is provided in the sorting tank.
5. The heavy medium floating and sinking detection device according to claim 4, characterized in that: The stirring device comprises a motor B, the output shaft of which is connected to a stirring shaft; an S-shaped stirring blade is arranged on the stirring shaft, and both ends and a middle part of the S-shaped stirring blade are respectively connected to the stirring shaft.
6. The heavy medium floating and sinking detection device according to claim 5, characterized in that: The stirring shaft is a hollow shaft; an air supply pipe is installed at the bottom end of the stirring shaft, and the air supply pipe is connected with the inside of the stirring shaft; a nozzle is arranged on the bottom surface of the air supply pipe.
7. The heavy medium floating and sinking detection device according to claim 6, characterized in that: The nozzle is a tapered structure.
8. The heavy medium floating and sinking detection device according to claim 5, characterized in that: Telescopic devices are respectively provided on the two support plates, and a transverse plate is provided on the two telescopic devices; the motor B is fixed on the transverse plate.