CN219540611U - Flotation concentrate vacuum defoaming device - Google Patents
Flotation concentrate vacuum defoaming device Download PDFInfo
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- CN219540611U CN219540611U CN202320414892.4U CN202320414892U CN219540611U CN 219540611 U CN219540611 U CN 219540611U CN 202320414892 U CN202320414892 U CN 202320414892U CN 219540611 U CN219540611 U CN 219540611U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
The utility model provides a flotation concentrate vacuum defoaming device, which belongs to the technical field of flotation mining auxiliary equipment and comprises a flotation concentrate pool/barrel, a sealing cover, a flotation concentrate pipe and a vacuum device. The sealing cover is arranged on the flotation concentrate pool/barrel; the flotation concentrate pipe is used for conveying ore pulp into the flotation concentrate pool/barrel, the flotation concentrate pipe passes through the sealing cover from top to bottom and stretches into the flotation concentrate pool/barrel, and the lower end opening of the flotation concentrate pipe is positioned below the liquid level of the flotation concentrate pool/barrel; the vacuum device is communicated with the inner cavity of the flotation concentrate pool/barrel through a vacuum pipeline, and the vacuum pipeline is positioned above the liquid level of the flotation concentrate pool/barrel; the vacuum device enables the lower part of the sealing cover to form a vacuum cavity through the vacuum pipeline. The vacuum defoaming device for the flotation concentrate greatly reduces the foam volume, increases the density of ore pulp, shortens the dehydration time of a filter press, reduces the energy consumption and greatly reduces the bursting probability of a feed pump of the filter press.
Description
Technical Field
The utility model belongs to the technical field of auxiliary equipment for flotation mining, and particularly relates to a flotation concentrate vacuum defoaming device.
Background
At present, a coal preparation plant with flotation is provided with a flotation concentrate pool/barrel, the concentrate in the flotation concentrate pool/barrel is transferred to a filter press by a slurry pump for dehydration treatment, the foam containing air bubbles enters a dehydration recovery device, and the air also needs to penetrate through capillary holes of a filter cake under the action of pressure and is discharged together with the filtrate, so that the energy consumption is necessarily increased and the dehydration time is prolonged. Because the air content in the foam is too large and the density is too small, the slurry pump cannot form enough pressure to send the foam to the pressure bin of the filter press, so that the foam with limited volume is continuously stirred by the impeller in the pump cavity, friction generates heat, water forms superheated steam, coal becomes dust, electric spark is generated in the oxygen environment, the volume of the mixture expands rapidly, and huge pressure is instantaneously generated to crack the pump shell of the feeding pump, thereby causing safety accidents.
Disclosure of Invention
The utility model aims to provide a flotation concentrate vacuum defoaming device, which aims to solve the problems that foam generated in the existing flotation concentrate production process is not easy to eliminate, so that energy consumption is too high, dehydration time is too long, and safety accidents are easy to occur.
In order to achieve the above purpose, the utility model adopts the following technical scheme: provided is a flotation concentrate vacuum defoaming device, comprising:
a flotation concentrate cell/bucket;
a sealing cover mounted on the flotation concentrate tank/barrel for sealing an upper end opening of the flotation concentrate tank/barrel;
the flotation concentrate pipe is used for conveying ore pulp into the flotation concentrate pool/barrel, the flotation concentrate pipe passes through the sealing cover from top to bottom and stretches into the flotation concentrate pool/barrel, and the lower end opening of the flotation concentrate pipe is positioned below the liquid level of the flotation concentrate pool/barrel; and
the vacuum device is communicated with the inner cavity of the flotation concentrate pool/barrel through a vacuum pipeline, and the vacuum pipeline is positioned above the liquid level of the flotation concentrate pool/barrel;
the vacuum device enables the lower part of the sealing cover to form a vacuum cavity through the vacuum pipeline.
In one possible implementation, a vacuum sensor is mounted in the flotation concentrate cell/tank, the sensing end of which is located above the liquid level of the flotation concentrate cell/tank.
In one possible implementation, a mute check valve is mounted on the vacuum line.
In one possible implementation, the vacuum line has a gas flow meter mounted thereon.
In one possible implementation, the outer side wall of the flotation concentrate basin/tank is fitted with an overflow pipe, on which an control valve is fitted.
In one possible implementation, the sealing cover comprises a rigid support fixedly connected to the inner side wall of the flotation concentrate cell/tank and a sealing membrane wrapped around the rigid support.
In one possible implementation, the rigid support comprises angle steel and wire netting, the angle steel is latticed, the wire netting is located the top surface of angle steel, the wire netting with the angle steel passes through welded fastening, sealing film covers the angle steel with the top surface of wire netting.
In one possible implementation, an annular pressing plate is mounted on the top of the angle steel, and the annular pressing plate is used for pressing and fixing the sealing film on the angle steel.
In one possible implementation, the angle steel is provided with an annular sealing ring at the periphery.
In one possible implementation manner, an annular groove for installing the annular sealing ring is formed in the peripheral side wall of the angle steel.
Compared with the prior art, the scheme provided by the embodiment of the utility model has the advantages that the sealing cover is arranged on the flotation concentrate pool/barrel, so that the flotation concentrate pool/barrel is sealed. The flotation concentrate pipe passes through the sealing cover from top to bottom and extends to the position below the liquid level in the flotation concentrate pond/barrel, the flotation concentrate pipe conveys ore pulp into the flotation concentrate pond/barrel, the vacuum device is communicated with the inner cavity of the flotation concentrate pond/barrel through a vacuum pipeline, and the vacuum pipeline is positioned above the liquid level of the flotation concentrate pond/barrel. Because of the small density of froth, the froth is located above the liquid level of the flotation concentrate cell/barrel. The vacuum device can vacuumize the space where the foam is located through the vacuum pipeline, so that negative pressure is formed in the flotation concentrate pool/barrel, the volume of the foam is greatly reduced, the density of ore pulp is increased, the dehydration time of the filter press can be shortened, the energy consumption is reduced, the probability of bursting of a feed pump of the filter press is greatly reduced, and the safety coefficient is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic cross-sectional structure diagram of a flotation concentrate vacuum defoaming device according to a first embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of a seal cap according to a second embodiment of the present utility model;
FIG. 3 is a top view of an annular platen according to a second embodiment of the present utility model;
fig. 4 is a schematic cross-sectional view of an angle steel according to a second embodiment of the present utility model.
In the figure: 1. a flotation concentrate cell/bucket; 101. a vacuum sensor; 102. a mute check valve; 103. an overflow pipe; 104. a control valve; 2. sealing cover; 201. a rigid support; 202. a sealing film; 203. angle steel; 204. a wire netting; 205. an annular pressing plate; 206. an annular seal ring; 207. an annular groove; 3. a flotation concentrate pipe; 4. a vacuum device; 5. a vacuum pipe; 501. a gas flow meter; 6. and a filter press feeding pump.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1, a description will now be given of a flotation concentrate vacuum defoaming device provided by the utility model. The flotation concentrate vacuum defoaming device comprises: a flotation concentrate pond/barrel 1, a sealing cover 2, a flotation concentrate pipe 3 and a vacuum device 4. The sealing cover 2 is arranged on the flotation concentrate pond/barrel 1 and is used for sealing an upper end opening of the flotation concentrate pond/barrel 1; the flotation concentrate pipe 3 is used for conveying ore pulp into the flotation concentrate pool/barrel 1, the flotation concentrate pipe 3 passes through the sealing cover 2 from top to bottom and stretches into the flotation concentrate pool/barrel 1, and the lower end opening of the flotation concentrate pipe 3 is positioned below the liquid level of the flotation concentrate pool/barrel 1; the vacuum device 4 is communicated with the inner cavity of the flotation concentrate pool/barrel 1 through a vacuum pipeline 5, and the vacuum pipeline 5 is positioned above the liquid level of the flotation concentrate pool/barrel 1; the vacuum device 4 forms a vacuum cavity below the sealing cover 2 through a vacuum pipe 5.
Compared with the prior art, the flotation concentrate vacuum defoaming device provided by the embodiment has the advantages that the sealing cover 2 is arranged on the flotation concentrate pool/barrel 1, so that the flotation concentrate pool/barrel 1 is sealed. The flotation concentrate pipe 3 passes through the sealing cover 2 from top to bottom and extends to below the liquid level in the flotation concentrate pond/barrel 1, the flotation concentrate pipe 3 conveys ore pulp into the flotation concentrate pond/barrel 1, the vacuum device 4 is communicated with the inner cavity of the flotation concentrate pond/barrel 1 through the vacuum pipeline 5, and the vacuum pipeline 5 is positioned above the liquid level of the flotation concentrate pond/barrel 1. Due to the small density of froth, the froth is located above the liquid level of the flotation concentrate basin/bowl 1. The vacuum device 4 can vacuumize the space where the foam is located through the vacuum pipeline 5, so that negative pressure is formed in the flotation concentrate pool/barrel 1, the volume of the foam is greatly reduced, the density of ore pulp is increased, the dehydration time of the filter press can be shortened, the energy consumption is reduced, the probability of bursting of the feed pump 6 of the filter press is greatly reduced, and the safety coefficient is improved.
In this embodiment, the vacuum device 4 may employ a vacuum pump. The feed inlet of the filter press feed pump 6 is communicated with the bottom of the inner cavity of the flotation concentrate pond/barrel 1. The distance H between the flotation concentrate pipe 3 and the bottom of the flotation concentrate pond/barrel 1 is less than or equal to 500mm, and is far away from the pump opening of the filter press feed pump 6.
In some embodiments, referring to fig. 1, a vacuum sensor 101 is mounted in the flotation concentrate cell/bowl 1, with the sensing end of the vacuum sensor 101 being located in the flotation concentrate cell/bowl 1. In this embodiment, the vacuum sensor 101 is mounted on the sealing cover 2, the lower end of the vacuum sensor 101 is an induction end, and the vacuum sensor 101 extends to above the liquid level of the flotation concentrate cell/barrel 1 through the sealing cover 2. The vacuum sensor 101 works on the principle that the pressure of the medium directly acts on the diaphragm of the sensor, so that the diaphragm generates micro displacement proportional to the pressure of the medium, the resistance of the sensor changes, and the change is detected by an electronic circuit and converted to output a standard signal corresponding to the pressure. The vacuum sensor 101 can monitor the vacuum degree of the space where the foam is located in real time. When the vacuum degree of the space where the foam is located is lower than 0.015MPa, the vacuum sensor 101 transmits a signal to the controller, so that the vacuum device 4 is started; when the vacuum degree of the space where the foam is located reaches 0.02MPa, the vacuum sensor 101 transmits a signal to the controller, thereby stopping the operation of the vacuum device 4.
In some embodiments, referring to fig. 1, a mute check valve 102 is mounted on the vacuum line 5. In this embodiment, the mute check valve 102 is a valve for preventing the medium from flowing backward, which is also called a check valve, a one-way valve, a reverse flow valve, and a back pressure valve, by automatically opening and closing a valve flap depending on the flow of the medium itself. The check valve is an automatic valve and has the main functions of preventing the medium from flowing backwards, preventing the reverse rotation of the pump and the driving motor and preventing the medium in the container from leaking. The check valve may also be used on a line to provide makeup to auxiliary systems where the pressure may rise above the system pressure. The check valves are mainly classified into swing check valves (rotated about the center of gravity) and lift check valves (moved along the axis). The mute check valve 102 is effective to prevent the gas in the vacuum pipe 5 from flowing back into the flotation concentrate cell/bowl 1.
In some embodiments, referring to fig. 1, a gas flow meter 501 is mounted on the vacuum pipe 5. In this embodiment, the gas flow meter 501 is a meter for measuring the flow rate of gas, and is installed in a pipeline to record the amount of gas flowing therethrough. Gas, air, nitrogen, acetylene, phosgene, hydrogen, natural gas, nitrogen, liquefied petroleum gas, hydrogen peroxide, flue gas, methane, butane, chlorine, gas, biogas, carbon dioxide, oxygen, compressed air, argon, toluene, benzene, xylene, hydrogen sulfide, sulfur dioxide, ammonia, etc. can be measured. The flow of gas in the vacuum pipe 5 is monitored in real time by the gas flow meter 501.
In some embodiments, referring to fig. 1, an overflow pipe 103 is mounted on the outer side wall of the flotation concentrate cell/tank 1, and a control valve 104 is mounted on the overflow pipe 103. In this embodiment, the overflow pipe 103 is located below the sealing cover 2. By providing the overflow pipe 103 on the flotation concentrate basin/bowl 1, the liquid level in the flotation concentrate basin/bowl 1 is avoided from being too high. In the working process of the vacuum device 4, the overflow pipe 103 is closed by the control valve 104, so that the communication between the outside air and the air in the flotation concentrate pond/barrel 1 is prevented, and the smooth vacuum pumping operation of the vacuum device 4 in the flotation concentrate pond/barrel 1 is ensured.
In some embodiments, referring to fig. 2, the sealing cover 2 comprises a rigid support 201 and a sealing membrane 202, wherein the rigid support 201 is fixedly connected with the inner side wall of the flotation concentrate cell/tank 1, and the sealing membrane 202 is wrapped on the rigid support 201. In this embodiment, the rigid support 201 is fixedly connected to the inner wall of the flotation concentrate cell/bowl 1, and the sealing membrane 202 is wrapped around the rigid support 201. Rigid support 201 (rigid support 201 is the generic name for angle 203 and wire 204) provides support for sealing membrane 202. The sealing film 202 is made of rubber, which has a certain elasticity and has the characteristics of aging resistance, corrosion resistance and the like.
In some embodiments, referring to fig. 2 and 4, the rigid support 201 includes angle steel 203 and wire netting 204, the angle steel 203 is in a grid shape, the wire netting 204 is located on the top surface of the angle steel 203, the wire netting 204 and the angle steel 203 are fixed by welding, and the sealing film 202 covers the top surfaces of the angle steel 203 and the wire netting 204. In this embodiment, the rigid support 201 is formed of angle steel 203 and wire mesh 204. The plurality of angle steels 203 are welded into a grid shape, the grid spacing is 500mm, and the outer contour of the angle steels 203 is matched with the inner contour of the flotation concentrate pond/barrel 1. The wire netting 204 is located the top surface of angle steel 203, and is fixed through spot welding with angle steel 203. The flexible film is laid on top of the wire 204 and/or angle 203. Vacuum sensor 101 is fixedly mounted on angle 203. The outer contour of angle 203 may be circular or square.
In some embodiments, referring to fig. 2 and 3, an annular pressure plate 205 is mounted on top of the angle steel 203, and the annular pressure plate 205 is used to press and fix the sealing film 202 on the angle steel 203. In this embodiment, the annular pressing plate 205 is fixedly connected with the angle steel 203 through a fastener. The annular pressure plate 205 presses and fixes the circumferential edge of the sealing film 202 to the angle iron 203.
In some embodiments, referring to fig. 2, the outer perimeter of angle 203 is provided with an annular seal 206. In this embodiment, the annular sealing ring 206 is sleeved on the periphery of the angle steel 203, and is used for improving the tightness between the angle steel 203 and the inner side wall of the flotation concentrate pond/barrel 1.
In some embodiments, referring to fig. 4, an annular groove 207 for mounting an annular seal 206 is formed on the outer sidewall of angle 203. In this embodiment, the annular groove 207 plays a limiting role on the annular sealing ring 206, and improves the stability of the annular sealing ring 206 on the angle steel 203. The angle iron 203 is fixedly connected with the flotation concentrate cell/barrel 1 by screws.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. A flotation concentrate vacuum defoaming device, comprising:
a flotation concentrate cell/bucket;
a sealing cover mounted on the flotation concentrate tank/barrel for sealing an upper end opening of the flotation concentrate tank/barrel;
the flotation concentrate pipe is used for conveying ore pulp into the flotation concentrate pool/barrel, the flotation concentrate pipe passes through the sealing cover from top to bottom and stretches into the flotation concentrate pool/barrel, and the lower end opening of the flotation concentrate pipe is positioned below the liquid level of the flotation concentrate pool/barrel; and
the vacuum device is communicated with the inner cavity of the flotation concentrate pool/barrel through a vacuum pipeline, and the vacuum pipeline is positioned above the liquid level of the flotation concentrate pool/barrel;
the vacuum device enables the lower part of the sealing cover to form a vacuum cavity through the vacuum pipeline.
2. A flotation concentrate vacuum defoaming device according to claim 1, characterized in that a vacuum sensor is mounted in the flotation concentrate tank/barrel, the sensing end of the vacuum sensor being located above the liquid level of the flotation concentrate tank/barrel.
3. A flotation concentrate vacuum froth removal device according to claim 1, characterized in that the vacuum pipe is provided with a silent check valve.
4. A flotation concentrate vacuum froth removal device according to claim 1, characterized in that a gas flow meter is mounted on the vacuum pipe.
5. A flotation concentrate vacuum froth removal device according to claim 1, characterized in that the outer side wall of the flotation concentrate tank/barrel is provided with an overflow pipe, on which overflow pipe a control valve is arranged.
6. The flotation concentrate vacuum defoaming device according to claim 1, wherein the sealing cover comprises a rigid bracket and a sealing film, the rigid bracket is fixedly connected with the inner side wall of the flotation concentrate tank/barrel, and the sealing film is wrapped on the rigid bracket.
7. The flotation concentrate vacuum defoaming device according to claim 6, wherein the rigid support comprises angle steel and wire netting, the angle steel is in a grid shape, the wire netting is positioned on the top surface of the angle steel, the wire netting is fixed with the angle steel through welding, and the sealing film covers the top surfaces of the angle steel and the wire netting.
8. The flotation concentrate vacuum defoaming device according to claim 7, wherein an annular pressing plate is mounted on the top of the angle steel and used for pressing and fixing the sealing film on the angle steel.
9. The flotation concentrate vacuum defoaming device according to claim 7, wherein an annular sealing ring is arranged on the periphery of the angle steel.
10. The flotation concentrate vacuum defoaming device according to claim 9, wherein the outer peripheral side wall of the angle steel is provided with an annular groove for installing the annular sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320414892.4U CN219540611U (en) | 2023-03-07 | 2023-03-07 | Flotation concentrate vacuum defoaming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320414892.4U CN219540611U (en) | 2023-03-07 | 2023-03-07 | Flotation concentrate vacuum defoaming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219540611U true CN219540611U (en) | 2023-08-18 |
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ID=87737761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320414892.4U Active CN219540611U (en) | 2023-03-07 | 2023-03-07 | Flotation concentrate vacuum defoaming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219540611U (en) |
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2023
- 2023-03-07 CN CN202320414892.4U patent/CN219540611U/en active Active
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