Quantitative additive mixing mechanism

Abstract

The utility model discloses a quantitative additive mixing mechanism, which belongs to the technical field of red mud environment-friendly treatment and comprises a mixing tank, the mixing tank is sequentially divided into a blanking cavity, a mixing cavity and a stirring cavity from top to bottom, a sliding seat is integrally arranged on the outer wall of the blanking cavity, and a driving motor is slidably connected above the sliding seat through a sliding block. A friction wheel B is fixedly installed at the end of an output shaft of the driving motor, an electric telescopic rod is installed on one side of the sliding base, and the telescopic end of the electric telescopic rod is connected with a sliding block of the driving motor. The interior of the discharging cavity is rotationally connected with a discharging impeller through a long shaft, and a driving wheel is installed at one end of the long shaft of the discharging impeller. According to the red mud discharging device, when the discharging impeller rotates, the driving wheel drives the driven wheel to rotate through the belt, and then the discharging impeller is linked to rotate, so that the discharging amount of pulverized coal and the discharging speed between the discharging impellers can be coordinated, and the purpose of quantifying the proportion of the pulverized coal and the red mud is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the red mud environmental protection treatment technical field, concretely is a kind of quantitative additive mixing mechanism. BACKGROUND

[0002] Red mud is the industrial solid waste discharged when extracting alumina in aluminum industry, is called red mud because of the large amount of iron oxide, appearance is similar to red soil, because of the difference of ore grade, production method and technical level, about 1.0-1.8 tons of red mud is discharged for every 1 ton of alumina production, as a big country of alumina production, with the increasing of red mud stock and the increasing of pollution to environment.

[0003] With in-depth research, the existing multiple red mud treatment technologies, but in general, it is divided into dry method and wet method, wherein the dry method process is as follows, red mud is filtered, dried, crushed, and mixed with coal powder in proportion, then roasted through rotary kiln, coal powder is used as reducing agent, high-grade metal in red mud is reduced, tailings are ground and selected, and metal is recovered, and other tailings can be used as building materials.

[0004] In the mixing operation of red mud and coal powder, the material is generally put into the mixer by the equal amount of unloading valve, but there are the following two situations, one is that the amount of red mud on the production line is not uniform, and the other is that the staff needs to rest at night, and the rotary kiln generally does not stop after the hot kiln, and must have material to participate in reduction, so the amount of material is more difficult to control, therefore, the two will cause the mixing ratio of red mud and coal powder to be not uniform, causing waste of coal powder.

[0005] Accordingly, in the above background, a coal powder feeding mechanism that can intelligently feed coal powder according to red mud is designed to improve production efficiency. INVENTION CONTENTS

[0006] The utility model aims at: in order to solve the above -mentioned problem, provide a kind of quantitative additive mixing mechanism.

[0007] The technical scheme adopted by the utility model is as follows: a kind of quantitative additive mixing mechanism, including mixing trough, the mixing trough is sequentially divided into lower chamber, mixing chamber and stirring chamber from top to bottom, lower chamber, mixing chamber and stirring chamber are respectively provided with lower chamber component, mixing component and stirring component;

[0008] Lower chamber component includes: sliding seat, electric telescopic rod, lower chamber, lower chamber impeller, driving wheel, friction wheel A, drive motor, friction wheel B;

[0009] The outer wall of the blanking cavity is integrally provided with a sliding seat, a driving motor is slidably connected above the sliding seat through a sliding block, a friction wheel B is fixedly installed at the output shaft end of the driving motor, an electric telescopic rod is installed on one side of the sliding seat, and the telescopic end of the electric telescopic rod is connected with the sliding block of the driving motor; a blanking impeller is rotatably connected inside the blanking cavity through a long shaft, a driving wheel is installed at one end of the long shaft of the blanking impeller, and a friction wheel A is installed at the other end of the long shaft of the blanking impeller;

[0010] The mixing assembly comprises a connecting seat, a material conveying pipe, a discharging impeller, a driven wheel, a motor mounting cavity, a material scattering blade, a material cavity and a vibration motor.

[0011] The connecting seat is symmetrically installed on the outer wall of the mixing cavity, the material cavity is connected to the top of the connecting seat through a spring, and the vibration motor is installed on the outer wall of the material cavity; the material conveying pipe is installed inside the mixing cavity, the discharging impeller is rotatably connected inside the material conveying pipe, the driven wheel is extendedly connected to the shaft center on one side of the discharging impeller, the motor mounting cavity is arranged at the bottom of the mixing cavity, and the material scattering blade is rotatably connected below the motor mounting cavity.

[0012] The stirring assembly comprises fixed blades, a rotating column and stirring blades; the stirring cavity is annularly arranged, the fixed blades are integrally arranged around the inner wall of the stirring cavity, the rotating column is rotatably connected inside the stirring cavity, and the stirring blades are integrally arranged around the rotating column.

[0013] The number of the material conveying pipes is multiple, every two of which are arranged in a "V" shape, and the top of the material conveying pipe is connected with the material cavity through a hose.

[0014] The material scattering blade is arranged with a plurality of arc-shaped flow guide protrusions, the motor is installed inside the motor mounting cavity, and the output shaft of the motor is bolted with the shaft center of the material scattering blade.

[0015] The shaft centers of the friction wheel B and the friction wheel A are on the same straight line, the discharging impellers in each column are connected through long shafts, and the driving wheel and the two driven wheels are connected through a belt.

[0016] The surfaces of the stirring blades and the fixed blades are both provided with triangular blades.

[0017] As the above technical scheme is adopted, the present application has the following beneficial effects:

[0018] 1. The utility model discloses, according to the red mud material has, has two kinds of unloading mode, when the material on the conveyer belt is even and large, utilize the contact between friction wheel B and friction wheel A, produce friction, and then utilize the friction drive to rotate the constant speed of the unloading impeller, the purpose of uniform speed control unloading is played, at the same time, when the material on the conveyer belt is uneven and small, break off between friction wheel B and friction wheel A, material falls on the unloading impeller, utilize gravity drive to rotate the unloading impeller, this design makes the whole device when controlling the amount of unloading, more flexible, can better cope with the specific situation at that time.

[0019] 2. The utility model discloses, when the unloading impeller is rotating, the driving wheel is rotated through the belt drive of driving wheel, and then the linkage unloading impeller is rotated, this design can make the unloading amount of coal powder and the unloading speed between unloading impeller cooperate, reach the purpose that the proportion of coal powder and red mud material is quantitative.

[0020] 3. The utility model discloses, coal powder contacts the bulk blade, and the motor drives the bulk blade rotation, and coal powder is mixed between the centrifugal force and the red mud material that enters into the mixing chamber, and the interval between the material that flows in the air can improve the uniformity of mixing, and finally mixed material enters the stirring chamber, and the motor drives the rotation column to rotate, and the triangular blade between the stirring blade and fixed blade is acted on, and further mixing and stirring are carried out to mixed material, and the uniformity is further improved. DRAWINGS

[0021] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0022] Figure 2 It is the side perspective structure schematic diagram of the utility model;

[0023] Figure 3 It is the utility model Figure 2 It is the enlarged structure schematic diagram of the utility model in A place;

[0024] Figure 4 It is the unloading chamber front inside structure schematic diagram of the utility model;

[0025] Figure 5 It is the local three-dimensional structure schematic diagram of the utility model;

[0026] Figure 6 It is the bulk blade corrosion structure schematic diagram of the utility model;

[0027] Figure 7 It is the unloading impeller structure schematic diagram of the utility model.

[0028] Marked in the figure: 1, mixing tank; 101, sliding seat; 102, electric telescopic rod; 103, connecting seat; 2, blanking cavity; 201, blanking impeller; 202, driving wheel; 203, friction wheel A; 3, mixing cavity; 301, material conveying pipe; 3011, discharging impeller; 3012, driven wheel; 302, motor mounting cavity; 303, bulk blade; 4, stirring cavity; 401, fixed blade; 5, material cavity; 501, vibration motor; 6, driving motor; 601, friction wheel B; 7, rotating column; 701, stirring blade. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] In the utility model,

[0031] Referring to Figures 1-7 A quantitative additive mixing mechanism, comprising a mixing tank 1, the mixing tank 1 is sequentially divided into blanking cavity 2, mixing cavity 3 and stirring cavity 4 from top to bottom, and blanking assembly, mixing assembly and stirring assembly are respectively arranged in blanking cavity 2, mixing cavity 3 and stirring cavity 4;

[0032] The blanking assembly comprises sliding seat 101, electric telescopic rod 102, blanking cavity 2, blanking impeller 201, driving wheel 202, friction wheel A 203, driving motor 6 and friction wheel B 601;

[0033] The outer wall of blanking cavity 2 is integrally provided with sliding seat 101, driving motor 6 is slidably connected above sliding seat 101 through a sliding block, the output shaft end of driving motor 6 is fixedly installed with friction wheel B 601, electric telescopic rod 102 is installed on one side of sliding seat 101, the telescopic end of electric telescopic rod 102 is connected with the sliding block of driving motor 6, the shaft centers of friction wheel B 601 and friction wheel A 203 are on the same straight line, when the materials on the conveying belt are uniform and large, the staff controls the elongation of electric telescopic rod 102, at this time, driving motor 6 moves along sliding seat 101, because the shaft centers of friction wheel B 601 and friction wheel A 203 are on the same straight line, friction wheel B 601 and friction wheel A 203 are in contact, friction is generated, and then the friction force is used to drive blanking impeller 201 to rotate at a constant speed, so that the purpose of uniform speed control of blanking is achieved;

[0034] Referring to Figure 1 , 5The long shaft of the discharging impeller 201 is connected with a driving wheel 202 at one end and a friction wheel A 203 at the other end, and each column of discharging impellers 3011 is connected through a long shaft, and the driving wheel 202 is connected with two driven wheels 3012 through a belt, when the discharging impeller 201 rotates, the belt drives the driven wheel 3012 to rotate, and then the discharging impeller 3011 is driven to rotate, which can make the discharging amount of the coal powder and the discharging speed of the discharging impeller 201 work together, so as to achieve the purpose of quantitative proportioning of the coal powder and the red mud material;

[0035] The mixing assembly comprises a connecting seat 103, a material conveying pipe 301, a discharging impeller 3011, a driven wheel 3012, a motor mounting cavity 302, a bulk material blade 303, a material cavity 5 and a vibrating motor 501.

[0036] The connecting seat 103 is symmetrically arranged on the outer wall of the mixing cavity 3, and the top of the connecting seat 103 is connected with the material cavity 5 through a spring, and the outer wall of the material cavity 5 is provided with a vibrating motor 501.

[0037] Referring to Figures 1-5 The mixing cavity 3 is internally provided with a material conveying pipe 301, the material conveying pipe 301 is internally rotatably connected with a discharging impeller 3011, the discharging impeller 3011 is extendedly connected with a driven wheel 3012 at one side of the shaft, the mixing cavity 3 is provided with a motor mounting cavity 302 at the bottom, the motor mounting cavity 302 is rotatably connected with a bulk material blade 303 below, the bulk material blade 303 is arrayed with a plurality of arc-shaped flow guide protrusions on the surface, the motor mounting cavity 302 is internally provided with a motor, and the output shaft of the motor is bolted with the shaft of the bulk material blade 303, the motor drives the bulk material blade 303 to rotate, and since the bulk material blade 303 is arrayed with a plurality of arc-shaped flow guide protrusions on the surface, the coal powder is mixed with the red mud material entering the mixing cavity 3 under the centrifugal force, and the interval between the materials flowing in the air can improve the uniformity of the mixing.

[0038] Further, the stirring assembly comprises a fixed blade 401, a rotating column 7 and a stirring blade 701.

[0039] The stirring cavity 4 is annularly arranged, the fixed blade 401 is integrally arranged on the inner wall of the stirring cavity 4, the rotating column 7 is rotatably connected in the stirring cavity 4, and the stirring blade 701 is integrally arranged on the rotating column 7, the triangular blades are arranged on the surfaces of the stirring blade 701 and the fixed blade 401, the mixed material enters the stirring cavity 4, the motor drives the rotating column 7 to rotate, the triangular blades on the stirring blade 701 and the fixed blade 401 act on each other, the mixed material is further mixed and stirred, and the uniformity is improved.

[0040] Further, the number of material conveying pipes 301 is multiple, every two of which are arranged in a "V" shape, and the top of the material conveying pipe 301 is connected with the material cavity 5 through a hose. This design makes the material cavity 5 not collide with the material conveying pipe 301 when vibrating, and at the same time ensures the flowability of the pulverized coal inside the material cavity 5.

[0041] Further, the bottom of the mixing tank 1 is provided with a motor, and the motor output shaft is connected between the rotating column 7. The electric telescopic rod 102, the motor, the driving motor 6, and the vibration motor 501 are all electrically connected with the external power supply through the control switch.

[0042] Working principle: first, the external conveyor belt guides the red mud material from the inlet of the mixing tank 1. When the material on the conveyor belt is uniform and in large quantity, the staff controls the electric telescopic rod 102 to extend. At this time, the driving motor 6 moves along the sliding seat 101. Since the friction wheel B601 and the friction wheel A203 are on the same straight line, the friction wheel B601 and the friction wheel A203 are in contact, friction is generated, and then the friction drives the constant-speed rotation of the discharging impeller 201, which plays a role in uniform control of discharging. At the same time, when the material on the conveyor belt is not uniform and in small quantity, the electric telescopic rod 102 can be controlled to retract, so that the friction wheel B601 and the friction wheel A203 are not in contact, and the material falls on the discharging impeller 201, which is driven to rotate by gravity. This design makes the device more flexible when controlling the amount of discharging, and can better cope with the specific situation at that time.

[0043] Then, through the operation of the vibration motor 501, the material cavity 5 vibrates to maintain the flowability of the pulverized coal. The pulverized coal enters the material conveying pipe 301. When the discharging impeller 201 rotates, the driving wheel 202 drives the driven wheel 3012 to rotate through the belt, and then the discharging impeller 3011 rotates in linkage. This design can make the discharging amount of the pulverized coal and the discharging speed of the discharging impeller 201 work together to achieve the purpose of quantitative proportioning of the pulverized coal and the red mud material. At this time, the pulverized coal is transported by the grooves on the surface of the discharging impeller 3011, and then slides down under the action of gravity, and then contacts the scattering blade 303. The motor drives the scattering blade 303 to rotate. Since the scattering blade 303 is arrayed with a plurality of arc-shaped flow guide protrusions on the surface, the pulverized coal is mixed with the red mud material entering the mixing cavity 3 under the action of centrifugal force. Finally, the mixed material enters the stirring cavity 4, the motor drives the rotating column 7 to rotate, and the stirring blade 701 and the triangular blade on the fixed blade 401 act on each other to further mix and stir the mixed material, improve the uniformity, and finally the material is discharged from the discharge port for rotary kiln.

[0044] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A dosing additive mixing mechanism comprising a mixing tank (1), characterized in that: The mixing tank (1) is sequentially divided into a discharging cavity (2), a mixing cavity (3) and a stirring cavity (4) from top to bottom, and the discharging cavity (2), the mixing cavity (3) and the stirring cavity (4) are respectively provided with a discharging assembly, a mixing assembly and a stirring assembly; The discharging assembly comprises a sliding seat (101), an electric telescopic rod (102), the discharging cavity (2), a discharging impeller (201), a driving wheel (202), a friction wheel A (203), a driving motor (6) and a friction wheel B (601); The sliding seat (101) is integrally arranged on the outer wall of the discharging cavity (2), a driving motor (6) is slidably connected to the upper portion of the sliding seat (101) through a sliding block, a friction wheel B (601) is fixedly installed on the output shaft end of the driving motor (6), an electric telescopic rod (102) is installed on one side of the sliding seat (101), and the telescopic end of the electric telescopic rod (102) is connected between the sliding block of the driving motor (6). The discharging impeller (201) is rotatably connected to the inside of the discharging cavity (2) through a long shaft, the driving wheel (202) is installed on one end of the long shaft of the discharging impeller (201), and the friction wheel A (203) is installed on the other end of the long shaft of the discharging impeller (201). The mixing assembly comprises a connecting seat (103), a material conveying pipe (301), a discharging impeller (3011), a driven wheel (3012), a motor mounting cavity (302), a bulk material blade (303), a material cavity (5) and a vibrating motor (501). The connecting seat (103) is symmetrically installed on the outer wall of the mixing cavity (3), the material cavity (5) is connected to the top of the connecting seat (103) through a spring, and the vibrating motor (501) is installed on the outer wall of the material cavity (5). The material conveying pipe (301) is installed in the mixing cavity (3), the discharging impeller (3011) is rotatably connected to the inside of the material conveying pipe (301), the driven wheel (3012) is extendedly connected to the shaft center of one side of the discharging impeller (3011), the motor mounting cavity (302) is arranged at the bottom of the mixing cavity (3), and the bulk material blade (303) is rotatably connected below the motor mounting cavity (302).

2. A dosing additive mixing mechanism as claimed in claim 1, characterized in that: The stirring assembly comprises a fixed blade (401), a rotating column (7) and a stirring blade (701). The stirring cavity (4) is annularly arranged, the fixed blade (401) is integrally arranged on the inner wall of the stirring cavity (4), the rotating column (7) is rotatably connected to the inside of the stirring cavity (4), and the stirring blade (701) is integrally arranged on the rotating column (7).

3. A dosing additive mixing mechanism as claimed in claim 1, characterized in that: The number of the material conveying pipes (301) is multiple, every two of which are arranged in a "V" shape, and the top of the material conveying pipe (301) is connected with the material cavity (5) through a hose.

4. A dosing additive mixing mechanism as claimed in claim 1, characterized in that: The surface of the bulk material blade (303) is arrayed with a plurality of arc-shaped flow guide protrusions.

5. A dosing additive mixing mechanism as claimed in claim 1, characterized in that: A motor is installed in the motor mounting cavity (302), and the output shaft of the motor is bolted with the shaft center of the bulk material blade (303).

6. A metering additive mixing mechanism as claimed in claim 1, characterized in that: The shaft centers of the friction wheel B (601) and the friction wheel A (203) are on the same straight line.

7. A metering additive mixing mechanism as claimed in claim 1, wherein: The discharge impeller (3011) in each column is connected through a long shaft, and the driving wheel (202) and the two driven wheels (3012) are connected through a belt.

8. A dosing additive mixing mechanism as claimed in claim 2, characterized in that: The stirring blade (701) and the fixed blade (401) are provided with triangular blades.

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