CN110721819A

CN110721819A - Fly ash flotation separation equipment

Info

Publication number: CN110721819A
Application number: CN201911214986.1A
Authority: CN
Inventors: 赵建军; 刘沐鑫; 张现峰; 吴景梅; 史宜望; 姜绯; 周密
Original assignee: Bengbu College
Current assignee: Bengbu College
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-01-24

Abstract

The invention discloses fly ash flotation separation equipment which comprises a raw pool, a first flotation pool, a second flotation pool, a collecting pool and a tail ash pool, wherein outlet ends of a feeding pipe and a drainage hose are arranged on a nozzle end block; the rotary rod extends into inner cavities of the first flotation tank and the second flotation tank respectively, a rotary plate is fixedly arranged on the rotary rod, a plurality of outlet channels are arranged on the side wall of the rotary plate in a penetrating mode, the outlet channels are arranged in an inclined mode at different angles, L-shaped air inlet pipes are symmetrically communicated with the air compressor and penetrate through the center of the driven gear and are arranged in the inner cavity of the rotary rod, and the L-shaped air inlet pipes are communicated with the outlet channels. The invention provides fly ash flotation separation equipment, which is internally provided with multiple devices for increasing air flow in a first flotation tank and a second flotation tank and accelerating mixing of fly ash slurry and flotation reagents, effectively improves separation efficiency, enables reaction to be more thorough, and is very worthy of popularization.

Description

Fly ash flotation separation equipment

Technical Field

The invention relates to the technical field of fly ash flotation, in particular to fly ash flotation separation equipment.

Background

In the prior art, a trough type fly ash multistage flotation separation device with application number "201210258144.8" comprises an elongated trough body, wherein the trough body comprises a head part and a tail part, wherein the upper part or the top of the head part is provided with a raw material inlet, and the upper part or the top of the tail part is provided with a flotation outlet; the trough body is divided into at least two flotation units by at least one plate inserting device; the bottom of each flotation unit is provided with a tail ash outlet; the multistage flotation separation equipment also comprises an aeration device for generating bubbles, wherein the aeration device comprises bubble diffusion devices which are consistent with the number of the flotation units and are respectively positioned in each flotation unit, and each bubble diffusion device comprises a gas diffusion hole or a gas diffusion pipe for overflowing bubbles; each plate inserting device comprises an adjusting weir flow plate which can move up and down, the size of an overflow hole on the plate inserting device is adjusted by adjusting the depth or height of the adjusting weir flow plate, and the groove type coal ash multistage flotation separation equipment has the advantages of low power consumption, simple structure, easy processing and reduced manufacturing cost; in addition, by utilizing the multistage flotation equipment disclosed by the invention, the ash content in the high-carbon ash obtained by flotation can be reduced by about 3-5%, the flotation effect is improved, and the high-carbon ash with higher carbon content is obtained.

However, the method still has the obvious defects in the using process: 1. the flotation tank of the device is lack of a necessary stirring device, so that the flotation reagent cannot be thoroughly mixed with the fly ash, and the subsequent separation effect is influenced; 2. although the gas diffusion tubes are inclined at different angles in the above-mentioned apparatus, the gas diffusion tubes are still static, and the range that can be covered is limited, and the air content in the fly ash slurry cannot be increased more comprehensively, so that the flotation reagent cannot react sufficiently.

Disclosure of Invention

The invention aims to provide fly ash flotation separation equipment to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a coal ash flotation separation device comprises a raw pool, a first flotation pool, a second flotation pool, a collecting pool and a tail ash pool, wherein the raw pool is communicated with the first flotation pool through a feeding pipe, one end of the feeding pipe extending into the first flotation pool is fixedly penetrated through the upper wall of the first flotation pool, a feeding pump is arranged on the feeding pipe, the first flotation pool is communicated with the second flotation pool through a drainage hose, one end of the drainage hose extending into the second flotation pool is fixedly penetrated through the upper wall of the second flotation pool, the outlet ends of the feeding pipe and the drainage hose are both arranged in a nozzle end block, a plurality of spray outlets are arranged in the nozzle end block and are respectively communicated with the feeding pipe and the drainage hose, one end of the drainage hose far away from the nozzle end block is fixedly arranged in a clamping groove formed in a first adjusting plate, the first adjusting plate is fixed at the output end of a first air cylinder, the first air cylinder is arranged on the outer wall of the first flotation tank, the second flotation tank is communicated with the collection tank through an overflow hose, the overflow hose extends into one end of the collection tank and fixedly penetrates through the upper wall of the collection tank, one end, far away from the collection tank, of the overflow hose is fixedly arranged in a clamping groove formed in an adjusting plate II, the adjusting plate II is fixed at the output end of the second air cylinder, the second air cylinder is arranged on the outer wall of the second flotation tank, outlet pipes are respectively communicated with the bottom ends of the first flotation tank and the second flotation tank and communicated with an inverted U-shaped communicating pipe, two end outlets of the inverted U-shaped communicating pipe are respectively provided with a first electric valve and a second electric valve, and two end outlets of the inverted U-shaped communicating pipe are respectively communicated with the original tank and the tail ash tank;

a base is fixedly arranged between the upper ends of the first flotation tank and the second flotation tank, a rotating motor is arranged on the base, a driving gear is fixedly arranged at the output end of the rotating motor, driven gears are respectively meshed with the two sides of the driving gear, a rotating rod is fixedly arranged at the lower end of the driven gear and respectively extends into the inner cavities of the first flotation tank and the second flotation tank, a rotating plate is fixedly arranged on the rotating rod, a plurality of outlet channels are arranged on the side wall of the rotating plate in a penetrating manner and are inclined at different angles, a connecting column is fixedly arranged at the center of one side of the driving gear, which is far away from the rotating motor, is movably arranged in a bearing seat, the bearing seat is fixedly arranged at the bottom end of the bearing plate, a supporting column is fixedly connected between the bearing plate and the base, and an air compressor is arranged at one side of the bearing plate, the air compressor is symmetrically communicated with L-shaped air inlet pipes, the L-shaped air inlet pipes penetrate through the center of the driven gear and then are arranged in the inner cavity of the rotating rod, and the L-shaped air inlet pipes are communicated with the outlet channel.

Preferably, the rotating lever and the rotating plate are integrally formed.

Preferably, the outer walls of the top ends of the first flotation tank and the second flotation tank are provided with circular bearings, and the rotating rod is movably arranged in the circular bearings in a penetrating mode.

Compared with the prior art, the invention has the beneficial effects that:

1. when the device conveys the fly ash slurry to the first flotation tank and the second flotation tank, the fly ash slurry flows out from the spraying outlet of the end block of the spray head, so that the fly ash slurry impacts the slurry at the bottom in the descending process to promote the mixing of the flotation reagent and the slurry, and the fly ash slurry brings air in the natural falling process to form bubbles and increase the aeration amount;

2. the first flotation tank and the second flotation tank are respectively provided with a rotating rod and a rotating plate, so that the flotation liquid medicine can be promoted to be uniformly mixed in the fly ash slurry, the reaction is more thorough, and the first flotation tank and the second flotation tank are driven by the same rotating motor, so that a power system can be simplified, and the power consumption in use can be reduced;

3. all be provided with L type intake pipe in first flotation cell and the second flotation cell, and L type intake pipe setting in the inner chamber of rotary rod, be linked together with the exit channel, consequently final air current can flow from the exit channel, along with the rotation of rotor plate, on the one hand, the rotor plate can promote the mixture of thick liquid and flotation medicament, and on the other hand, the exit channel that can rotate on the rotor plate also rotates thereupon for the air current direction constantly changes, and internal mixing accelerates, improves the coverage of aeration.

The invention provides fly ash flotation separation equipment, which is internally provided with multiple devices for increasing air flow in a first flotation tank and a second flotation tank and accelerating mixing of fly ash slurry and flotation reagents, effectively improves separation efficiency, enables reaction to be more thorough, and is very worthy of popularization.

Drawings

FIG. 1 is a schematic cross-sectional view of the overall structure of the present invention;

FIG. 2 is a schematic sectional view of the first flotation cell and the second flotation cell according to the present invention;

fig. 3 is an enlarged view of the invention at a in fig. 2.

In the figure: the device comprises a raw pool 1, a first flotation pool 2, a second flotation pool 3, a collection pool 4, a tail ash pool 5, a feed pipe 6, a feed pump 7, a drainage hose 8, a spray head end block 9, a spray outlet 10, a first adjusting plate 11, a first cylinder 12, an overflow hose 13, a second adjusting plate 14, a second cylinder 15, an outlet pipe 16, an inverted U-shaped communicating pipe 17, a first 18 electric valve, a second 19 electric valve, a base 20, a rotating motor 21, a driving gear 22, a driven gear 23, a rotating rod 24, a rotating plate 25, an outlet channel 26, a ring bearing 27, a connecting column 28, a bearing seat 29, a bearing plate 30, a supporting column 31, an air compressor 32 and an air inlet pipe 33L.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

a fly ash flotation separation device comprises a raw pool 1, a first flotation pool 2, a second flotation pool 3, a collecting pool 4 and a tail ash pool 5, wherein slurry mixed by fly ash and flotation reagents to be separated and processed is stored in the raw pool 1, the first flotation pool 2 and the second flotation pool 3 are respectively subjected to rough and fine double flotation separation, the collecting pool 4 is used for collecting refined carbon, carbon particles are adhered to bubbles to float in a scattered manner and move upwards under the action of the flotation reagents, so that the carbon particles are floated, ash with poor flotability falls into the tail ash pool 5, the raw pool 1 is communicated with the first flotation pool 2 through a feeding pipe 6, one end of the feeding pipe 6 extending into the first flotation pool 2 is fixedly penetrated through the upper wall of the first flotation pool 2, a feeding pump 7 is arranged on the feeding pipe 6, the feeding pump 7 can adopt a v180 type provided by a light spring pump industry, the first flotation pool 2 is communicated with the second flotation pool 3 through a drainage hose 8, one end of a drainage hose 8 extending into the second flotation tank 3 is fixedly penetrated through the upper wall of the second flotation tank 3, the outlet ends of a feed pipe 6 and the drainage hose 8 are arranged in a spray head end block 9, a plurality of spray outlets 10 are formed in the spray head end block 9, the spray outlets 10 are respectively communicated with the feed pipe 6 and the drainage hose 8, the spray outlets 10 are arranged to enable mixed slurry to bring more air in the falling process, the flotation effect is improved, one end of the drainage hose 8 far away from the spray head 9 is fixedly arranged in a clamping groove formed in a regulating plate I11, the regulating plate I11 is fixed at the output end of a cylinder I12, the cylinder I12 is arranged on the outer wall of the first flotation tank 2, the second flotation tank 3 is communicated with the collection tank 4 through an overflow hose 13, one end of the overflow hose 13 extending into the collection tank 4 is fixedly penetrated through the upper wall of the collection tank 4, one end of the overflow hose 13 far away from the collection tank 4 is fixedly arranged in the clamping groove formed in a regulating plate II, the adjusting plate II 14 is fixed at the output end of the air cylinder II 15, the air cylinder II 15 is arranged on the outer wall of the second flotation tank 3, the air cylinder I12 and the air cylinder II 15 can adopt SC50-350 models provided by Honeyanqi pneumatic company, the bottom ends of the first flotation tank 2 and the second flotation tank 3 are both communicated and provided with an outlet pipe 16, the outlet pipe 16 is communicated with an inverted U-shaped communicating pipe 17, the outlets at the two ends of the inverted U-shaped communicating pipe 17 are respectively provided with an electric valve I18 and an electric valve II 19, the electric valve I18 and the electric valve II 19 can adopt Q941F-16C/P models provided by Suzhou Mi self-control valve Limited company, the outlets at the two ends of the inverted U-shaped communicating pipe 17 are respectively communicated with the original tank 1 and the tail ash tank 5, if the standard flotation can directly remove the tail ash, the electric valve I18 is opened to ensure that the inverted U-shaped communicating pipe 17 is communicated with the tail, if the flotation needs to be performed again, the second electric valve 19 is opened, so that the inverted U-shaped communicating pipe 17 is communicated with the original pool 1, and the circulation is performed again.

A base 20 is fixedly arranged between the upper ends of the first flotation tank 2 and the second flotation tank 3, a rotating motor 21 is arranged on the base 20, the rotating motor 21 can adopt a model Y2-132M-4 provided by Taizhou Langbo motor Co., Ltd, a driving gear 22 is fixedly arranged at the output end of the rotating motor 21, driven gears 23 are respectively meshed with two sides of the driving gear 22, a rotating rod 24 is fixedly arranged at the lower end of the driven gear 23, the rotating rod 24 respectively extends into the inner cavities of the first flotation tank 2 and the second flotation tank 3, a rotating plate 25 is fixedly arranged on the rotating rod 24, the mixture of the fly ash and the flotation reagent can be stirred when the rotating plate 25 rotates, a plurality of outlet channels 26 are arranged on the side wall of the rotating plate 25 in a penetrating manner, the outlet channels 26 are arranged in an inclined manner at different angles, and a connecting column 28 is fixedly arranged at the center of one side, the connecting column 28 is movably arranged in the bearing seat 29, the connecting column 28 can rotate in the bearing seat 29, the bearing seat 29 is fixedly arranged at the bottom end of the bearing plate 30, a supporting column 31 is fixedly connected between the bearing plate 30 and the base 20, an air compressor 32 is arranged on one side, far away from the bearing seat 29, of the bearing plate 30, the air compressor 32 can adopt the model SJB 600X 2-950X 3 provided by the century leopard brand, L-shaped air inlet pipes 33 are symmetrically communicated with the air compressor 32, the L-shaped air inlet pipes 33 penetrate through the centers of the driven gears 23 and are arranged in the inner cavities of the rotating rods 24 and communicated with the outlet channels 26, and therefore air flow in the L-shaped air inlet pipes 33 is finally discharged from the outlet channels 26.

Preferably, the rotating rod 24 and the rotating plate 25 are integrally formed, which can reduce the complexity of assembling the device and increase the durability and stability of the device.

Preferably, the top end outer walls of the first flotation tank 2 and the second flotation tank 3 are provided with circular ring bearings 27, the rotating rod 24 is movably arranged in the circular ring bearings 27 in a penetrating manner, the rotating rod 24 can rotate in the circular ring bearings 27, and the circular ring bearings 27 play a role of movable support.

The working principle is as follows: when in use, the fly ash slurry is stored in the raw pool 1, a flotation reagent is added into the raw pool 1, then the feed pump 7 is started, the mixed slurry is introduced into the first flotation pool 2 through the feed pipe 6, the mixed slurry is sprayed out from the spraying outlet 10 formed in the nozzle end block 9 at the tail end of the feed pipe 6, so that the mixed slurry can bring more air in the falling process, the flotation effect is improved, according to the flotation separation condition in the first flotation pool 2, the height position of the inlet of the drainage hose 8 in the first flotation pool 2 is indirectly adjusted through the first air cylinder 12, the upper layer of flotation objects in the first flotation pool 2 is guided into the second flotation pool 3 through the guide pump, similarly, according to the flotation separation condition in the second flotation pool 3, the height position of the inlet of the flotation hose 13 in the second flotation pool 3 is indirectly adjusted through the second air cylinder 15, and finally the upper layer of refined carbon is introduced into the collection pool 4, the tail ash at the bottom layer enters the inverted U-shaped communicating pipe 17 through the outlet pipe 16, if the flotation reaches the standard, the tail ash can be directly discharged, the first electric valve 18 is opened, the inverted U-shaped communicating pipe 17 is communicated with the tail ash pool 5, and if the flotation needs to be performed again, the second electric valve 19 is opened, the inverted U-shaped communicating pipe 17 is communicated with the original pool 1, and the circulation is performed again.

During the flotation process of the first flotation tank 2 and the second flotation tank 3, the rotating motor 21 and the air compressor 32 are started, the rotating motor 21 drives the driven gear 23 to rotate through the driving gear 22, the rotating rod 24 and the rotating plate 25 at the lower end of the driven gear 23 rotate along with the rotating rod, the rotating plate 25 accelerates and mixes the mixed slurry of the medicament and the fly ash, on the other hand, the L-shaped air inlet pipe 33 penetrates through the center of the driven gear 23 and is arranged in the inner cavity of the rotating rod 24 and communicated with the outlet channel 26, when the rotating lever 24 rotates, the position of the L-shaped air inlet pipe 33 remains unchanged, but the air flow in the L-shaped air inlet pipe 33 is finally discharged from the outlet channel 26, the rotating plate 25 rotates the outlet channel 26, the direction of the airflow in the outlet channel 26 is changed continuously, the aeration coverage range is enlarged, and the water flow is stirred and mixed, so that a better flotation effect is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fly ash flotation separation equipment, includes former pond (1), first flotation cell (2), second flotation cell (3), collecting pit (4) and tail ash pond (5), its characterized in that: the raw pool (1) is communicated with a first flotation pool (2) through an inlet pipe (6), one end of the inlet pipe (6) extending into the first flotation pool (2) is fixedly penetrated through the upper wall of the first flotation pool (2), a feed pump (7) is arranged on the inlet pipe (6), the first flotation pool (2) is communicated with a second flotation pool (3) through a drainage hose (8), one end of the drainage hose (8) extending into the second flotation pool (3) is fixedly penetrated through the upper wall of the second flotation pool (3), the outlet ends of the inlet pipe (6) and the drainage hose (8) are both arranged in a nozzle end block (9), a plurality of spray outlets (10) are arranged in the nozzle end block (9), the spray outlets (10) are respectively communicated with the inlet pipe (6) and the drainage hose (8), one end of the drainage hose (8) far away from the nozzle end block (9) is fixedly arranged in a clamping groove formed in a first adjusting plate (11), adjusting plate (11) is fixed in the output of cylinder (12), cylinder (12) sets up on the outer wall of first flotation cell (2), second flotation cell (3) communicate in collecting pit (4) through overflow hose (13), the one end that overflow hose (13) extended into collecting pit (4) is fixed to run through in the upper wall of collecting pit (4), the one end that collecting pit (4) were kept away from in overflow hose (13) is fixed to be set up in the draw-in groove that adjusting plate two (14) were seted up, adjusting plate two (14) are fixed in the output of cylinder two (15), cylinder two (15) set up on the outer wall of second flotation cell (3), the bottom of first flotation cell (2) and second flotation cell (3) all communicates and is provided with outlet pipe (16), outlet pipe (16) communicate in type of falling U communicating pipe (17), the both ends exit of type of falling U communicating pipe (17) is provided with electric valve (18) and electric valve respectively The outlets at two ends of the inverted U-shaped communicating pipe (17) are respectively communicated with the original tank (1) and the tail ash tank (5);

a base (20) is fixedly arranged between the upper ends of the first flotation tank (2) and the second flotation tank (3), a rotating motor (21) is arranged on the base (20), a driving gear (22) is fixedly arranged at the output end of the rotating motor (21), driven gears (23) are respectively meshed with the two sides of the driving gear (22), a rotating rod (24) is fixedly arranged at the lower end of the driven gear (23), the rotating rod (24) respectively extends into the inner cavities of the first flotation tank (2) and the second flotation tank (3), a rotating plate (25) is fixedly arranged on the rotating rod (24), a plurality of outlet channels (26) are arranged on the side wall of the rotating plate (25) in a penetrating manner, the outlet channels (26) are arranged in an inclined manner at different angles, and a connecting column (28) is fixedly arranged at the center of one side of the driving gear (22) far away from the rotating motor (21), spliced pole (28) activity sets up in bearing frame (29), the fixed bottom that sets up at loading board (30) in bearing frame (29), fixed connection is provided with support column (31) between loading board (30) and base (20), one side that bearing frame (29) were kept away from in loading board (30) is provided with air compressor (32), the symmetry intercommunication is provided with L type intake pipe (33) on air compressor (32), L type intake pipe (33) run through and set up in the inner chamber of rotary rod (24) behind the center of driven gear (23), and are linked together with outlet channel (26).

2. A fly ash flotation separation apparatus as claimed in claim 1, wherein: the rotating rod (24) and the rotating plate (25) are integrally formed.

3. A fly ash flotation separation apparatus as claimed in claim 1, wherein: all be provided with ring bearing (27) on the top outer wall in first flotation cell (2) and second flotation cell (3), rotary rod (24) activity runs through the setting in ring bearing (27).