CN112619514B

CN112619514B - Red mud processing system is used in hollow brick production

Info

Publication number: CN112619514B
Application number: CN202011391943.3A
Authority: CN
Inventors: 鄢亮; 乐红志; 鄢俊杰; 毕研娜; 朱俊阁; 王倩
Original assignee: ZOUPING YONGHE NEW BUILDING MATERIAL CO Ltd; Shandong University of Technology
Current assignee: ZOUPING YONGHE NEW BUILDING MATERIAL CO Ltd; Shandong University of Technology
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2023-04-18
Anticipated expiration: 2040-12-01
Also published as: CN112619514A

Abstract

The invention discloses a red mud treatment system for hollow brick production, which comprises an installation frame, a mixing tank, a screening machine and a feeding assembly, wherein during feeding, a feeding auger is used for leading materials to pass through a feeding pipe with a longer length, so that the materials have longer drying time, the contact degree of the materials with high-temperature high-pressure dry gas is improved, the water control effect is improved, then the materials enter the screening machine, the screening machine can send screened materials into the mixing tank, and the mixing tank is fixed on the installation frame; the top of compounding jar is provided with feed inlet one for the discharge end with the screening machine links to each other, the side of compounding jar is provided with feed inlet two, is used for linking to each other with the feed supplement jar, the inside of compounding jar is provided with compounding leaf and the broken subassembly that can rotate the compounding, and the material body refines the back through the breakage of broken subassembly and carries out the compounding by the compounding leaf to improve the compounding effect, subsequent brickmaking of being convenient for is handled.

Description

Red mud processing system is used in hollow brick production

Technical Field

The invention relates to the technical field of red mud treatment, in particular to a red mud treatment system for hollow brick production.

Background

Red mud is a red, powdery and high-water-content strong-alkaline solid waste material remained after alumina is extracted from bauxite in the aluminum industry for preparing high-water content, so that the stacking of the red mud not only occupies a large amount of land, but also alkali existing in the red mud can permeate underground to pollute underground water and influence the ecological environment, and how to realize the waste utilization of the red mud becomes a key point of concern.

At present, red mud is often used for manufacturing hollow bricks, and the main process comprises the following steps: preprocessing, batching, profiling, drying and calcining, specifically, after filtering and dehydrating the red mud slurry, grinding the red mud slurry together with sandstone, limestone, iron powder and the like to prepare raw slurry, adjusting the raw slurry to meet technical indexes, and then performing subsequent processing such as profiling and the like, wherein the material mixing process is important;

at present, the red mud is usually crushed in the dehydration process of the red mud slurry, and then is mixed with other materials, so that the materials are easily adhered in the process of re-transportation after crushing, the subsequent mixing effect is general or the mixing efficiency is low, and the adaptability of the current crushing device is poor.

Therefore, there is a need to provide a red mud treatment system for producing hollow bricks, which solves the above problems in the background art.

Disclosure of Invention

In order to achieve the purpose, the invention provides the following technical scheme: the red mud treatment system for the production of the hollow bricks comprises a mounting frame, a mixing tank, a screening machine and a feeding assembly, wherein the feeding assembly can continuously feed materials into the screening machine, the screening machine can feed the screened materials into the mixing tank, and the mixing tank is fixed on the mounting frame;

the top of compounding jar is provided with feed inlet one for link to each other with the discharge end of screening machine, the side of compounding jar is provided with feed inlet two for link to each other with the feed supplement jar, the inside of compounding jar is provided with can rotate the compounding leaf and the broken subassembly of compounding, and the material body carries out the compounding by the compounding leaf after the broken refinement of broken subassembly.

Further, as preferred, be fixed with three group's compounding jars on the mounting bracket 1, every group the below of compounding jar all is provided with the collecting vessel, just the bottom of compounding jar is provided with the discharge gate for be linked together with the collecting vessel, and discharge gate department is provided with the valve body.

Further, preferably, the mixing tank comprises a tank body, the mixing blades are coaxially fixed at one end of a rotating shaft, the other end of the rotating shaft rotatably penetrates through the tank body to be connected with the output end of a mixing motor, and the mixing motor is fixed above the tank body;

the crushing assembly is arranged above the mixing blades.

Further, preferably, the mixing device further comprises a pressurizing tank, and the pressurizing tank can be used for filling pressurizing gas into the mixing tank.

Further, as preferred, broken subassembly includes striker plate, broken awl and broken motor, wherein, the striker plate is fixed in on the inner wall of the jar body, the through-hole has been seted up at the middle part of striker plate for the pivot passes wherein, just set up the lower hopper that the multiunit was the circumference and arranges on the striker plate, every the top of hopper is coaxial to be provided with broken awl down, broken awl is fixed in broken motor's output, just the surface equipartition of broken awl and lower hopper is equipped with broken arch.

Further, as preferred, broken motor adopts the linking arm to be fixed in on the connecting ring seat, the fixed cover of connecting ring seat is established in the outside of follow-up ring seat, the below of follow-up ring seat links to each other with the output of multiunit telescopic link, the other end of telescopic link is fixed on fixed baseplate, fixed baseplate is fixed in on the striker plate, fixed baseplate still adopts the bearing to rotate with the pivot and links to each other.

Further, preferably, a guide ring seat capable of guiding the telescopic end of the telescopic rod is coaxially fixed above the fixed base;

a guide sleeve is coaxially fixed on the inner wall of the follow-up ring seat so as to provide guidance for the rotating shaft;

the telescopic link can change the distance between broken awl and the lower hopper through flexible, and its flexible mode is oscillating or intermittent type formula regulation formula.

Further, as preferred, still coaxially be fixed with the unloading leaf on the pivot, the unloading leaf is located the below of feed inlet one and above broken subassembly.

Further, as preferred, the pay-off subassembly includes conveying pipe, pay-off flood dragon and hopper, wherein the pay-off flood dragon rotate set up in the conveying pipe, and it is driven by external motor and rotates, the one end of conveying pipe still is provided with the hopper.

Further, preferably, a plurality of groups of air holes are formed in the outer surface of the feeding pipe, the air holes are located at the position of the feeding screw, an air feeding bin is arranged outside the feeding pipe and at the position of the air holes, and the air feeding bin can continuously convey high-temperature high-pressure dry gas;

the feeding pipe is further fixed with an air pumping bin, the air pumping bin is communicated with the top of the feeding pipe through an air pumping pipe, the joint of the air pumping bin and the feeding pipe is far away from the air pumping bin, and the air pumping bin can pump water vapor in the feeding pipe to the outside of the feeding pipe.

Compared with the prior art, the invention provides a red mud treatment system for hollow brick production, which has the following beneficial effects:

1. according to the red mud material mixing device, a plurality of groups of discharging hoppers which are circumferentially arranged are arranged on the material baffle, the crushing cone is coaxially arranged above each discharging hopper, so that the red mud material can enter the position of the material mixing blade to be mixed by passing through the discharging hoppers, the discharging hoppers are matched with the crushing cones, the materials can be crushed and refined, the materials can be directly mixed after being refined, and the material mixing effect is improved.

2. According to the invention, the telescopic rod can change the distance between the crushing cone and the lower hopper through stretching and retracting, the stretching mode is an oscillation type or an intermittent adjustment type, wherein when the telescopic rod is continuously stretched and retracted, the stretching mode is an oscillation type, when the telescopic rod is stretched and retracted for one time or a plurality of times with longer clearance time so as to adjust the distance between the crushing cone and the lower hopper, the stretching mode is an intermittent adjustment type, and when the stretching mode is an oscillation type, the power for crushing materials comes from equivalent rotation between the crushing cone and the lower hopper on one hand and up and down crushing of the crushing cone on the other hand, so that the corresponding change can be carried out according to the characteristics of the materials, and the crushing and refining efficiency can be improved on the basis of meeting refining requirements.

3. In the invention, during feeding, the material passes through the feeding pipe with a longer length by using the feeding screw dragon, so that the material has longer drying time, the contact degree of the material with high-temperature high-pressure dry gas is improved, and the water control effect is improved.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic structural view of a mixing bowl according to the present invention;

FIG. 3 is a partially enlarged schematic view of FIG. 2;

FIG. 4 is a schematic view of the feed assembly of the present invention;

in the figure: 1. a mounting frame; 2. a mixing tank; 3. screening machine; 4. a booster tank; 5. a collection tank; 6. a feeding assembly; 7. an exhaust pipe; 8. an air pumping bin; 9. a gas delivery bin; 21. a tank body; 22. mixing leaves; 23. a rotating shaft; 24. blanking leaves; 25. a first feeding hole; 26. a discharge port; 27. a mixing motor; 28. a crushing assembly; 281. a striker plate; 282. feeding a hopper; 283. a crushing cone; 284. a crushing motor; 285. a connecting arm; 286. a connecting ring seat; 287. a follower ring seat; 288. a guide ring seat; 289. a fixed base; 290. a telescopic rod; 291. a guide sleeve; 61. a feed pipe; 62. air holes are formed; 63. feeding flood dragon; 64. a feed hopper.

Detailed Description

Referring to fig. 1 to 4, in the embodiment of the invention, a red mud treatment system for producing hollow bricks comprises a mounting frame 1, a mixing tank 2, a screening machine 3 and a feeding assembly 6, wherein the feeding assembly 6 can continuously feed materials into the screening machine 3, the screening machine 3 can feed screened materials into the mixing tank 2, and the mixing tank 2 is fixed on the mounting frame 1;

the top of compounding jar 2 is provided with feed inlet one 25 for the discharge end with screening machine 3 links to each other, the side of compounding jar 2 is provided with feed inlet two, be used for linking to each other with the feed supplement jar, it needs to explain, the feed supplement jar is a plurality of (not drawn in the picture), a plurality of feed supplement jars can be mended reductant, cosolvent and other materials in compounding jar 2 respectively, wherein, the reductant can carry out the reduction to iron oxide in the iron-bearing red mud, and the cosolvent then is arranged in follow-up reduction reaction, react iron-bearing red mud and generate low melting point compound, mix with other materials afterwards, constitute the raw materials of suppressing the hollow brick, the inside of compounding jar 2 is provided with compounding leaf 22 and the broken subassembly 28 that can rotate the compounding, and the compounding is carried out by the compounding leaf after the breakage of broken subassembly 28 to the material body.

As a preferred embodiment, three groups of mixing tanks 2 are fixed on the mounting frame 1, a collecting tank 5 is arranged below each group of mixing tanks 2, a discharge port 26 is arranged at the bottom of each mixing tank 2 and is used for communicating with the collecting tank 5, and a valve body is arranged at the discharge port 26.

In this embodiment, the mixing tank 2 includes a tank body 21, the mixing blade 22 is coaxially fixed at one end of a rotating shaft 23, the other end of the rotating shaft 23 rotatably penetrates through the tank body 21 to be connected with an output end of a mixing motor 27, and the mixing motor 27 is fixed above the tank body 21;

the crushing assembly 28 is disposed above the mixing blade 22.

In addition, as shown in fig. 1, a pressurizing tank 4 is also included, and the pressurizing tank 4 can be used for filling pressurizing gas into the mixing tank 2.

In this embodiment, as shown in fig. 2, the crushing assembly 28 includes a striker plate 281, a crushing cone 283 and a crushing motor 284, wherein the striker plate 281 is fixed on the inner wall of the tank body 21, a through hole is opened in the middle of the striker plate 281 for the rotating shaft 23 passes through the through hole, and the striker plate 281 is provided with a plurality of sets of lower hoppers 282 arranged circumferentially, each of which is coaxially provided with the crushing cone 283 above the lower hopper 282, the crushing cone 283 is fixed on the output end of the crushing motor 284, and the surface equipartition of the crushing cone 283 and the lower hopper 282 is provided with crushing protrusions, and the set striker plate 281 enables the red mud material body to enter the position of the mixing leaves through the lower hopper 282 for mixing, and the red mud material body is matched with the crushing cone 283, so that the crushing and refining of the material can be realized, and the mixing can be directly performed after the refining, thereby improving the mixing effect.

In this embodiment, as shown in fig. 2 and 3, the crushing motor 284 is fixed on a connecting ring seat 286 by using a connecting arm 285, the connecting ring seat 286 is fixedly sleeved outside a follower ring seat 287, the lower side of the follower ring seat 287 is connected with the output ends of a plurality of sets of telescopic rods 290, the other ends of the telescopic rods 290 are fixed on a fixed base 289, the fixed base 289 is fixed on a material blocking plate 281, and the fixed base 289 is further rotatably connected with the rotating shaft 23 by using a bearing.

In a preferred embodiment, a guide ring seat 288 capable of guiding the telescopic end of the telescopic rod is coaxially fixed above the fixing base 289;

a guide sleeve 291 is coaxially fixed on the inner wall of the follower ring base 287 so as to provide guidance for the rotating shaft 23;

the telescopic rod 290 can change the distance between the crushing cone 283 and the lower hopper 282 by extension and retraction, and the extension and retraction mode is an oscillation type or an intermittent adjustment type, specifically, when the telescopic rod is continuously extended and retracted, the extension and retraction mode is an oscillation type, when the telescopic rod is only extended and retracted once or for a long time, so as to adjust the distance between the crushing cone 283 and the lower hopper 282, the extension and retraction mode is an intermittent adjustment type, and when the extension and retraction mode is an oscillation type, the power for crushing materials comes from the equivalent rotation between the crushing cone and the lower hopper on one hand, and the up-and-down crushing of the crushing cone on the other hand.

In a preferred embodiment, a feeding blade 24 is coaxially fixed on the rotating shaft 23, and the feeding blade 24 is positioned below the feeding hole one 25 and above the crushing assembly 28 so as to disperse the materials.

In this embodiment, as shown in fig. 1 and 4, the feeding assembly 6 includes a feeding pipe 61, a feeding flood dragon 63 and a feeding hopper 64, wherein the feeding flood dragon 63 is rotatably disposed in the feeding pipe 61 and is driven by an external motor to rotate, and the feeding hopper 64 is further disposed at one end of the feeding pipe 61.

In addition, a plurality of groups of air holes 62 are formed in the outer surface of the feeding pipe 61, the air holes 62 are located at the position of the feeding screw 63, an air feeding bin 9 is arranged outside the feeding pipe 61 and at the position of the air holes 62, and the air feeding bin 9 can continuously feed high-temperature high-pressure dry air;

an air exhaust bin 8 is further fixed on the feeding pipe 61, the air exhaust bin 8 is communicated with the top of the feeding pipe 61 through an air exhaust pipe 7, the joint of the air exhaust bin 8 and the air supply bin 9 is far away, and the air exhaust bin 8 can exhaust water vapor in the feeding pipe 61 to the outside of the feeding pipe, so that water control treatment on red mud is achieved.

In the concrete implementation, the red mud raw materials are continuously delivered into the feed hopper 64, then the red mud raw materials are fed by a feeding flood dragon, the materials enter the sieving machine through the feeding pipe 61 with a long length and are sieved, and before the materials enter the sieving machine, high-temperature, high-pressure and dry gas is continuously conveyed by the gas feeding bin 9 so as to dry the red mud through the high-temperature, high-pressure and dry gas, so that the water control treatment of the red mud is realized, in addition, the sieved materials can be conveyed into the mixing tank 2 by the sieving machine 3, the side surface of the mixing tank 2 is also provided with a feed inlet II for being connected with a feed supplement tank, a plurality of feed supplement tanks can respectively supplement reducing agents, auxiliary solvents and other materials into the mixing tank 2, wherein the reducing agents can reduce iron oxides in the iron-containing red mud, the auxiliary solvents are used for generating low-melting-point compounds through the reaction of the red mud in the subsequent reduction reaction, and then the low-melting-point compounds are mixed with the other materials to form raw materials for pressing hollow bricks, and finally, the mixed materials passing through the mixing tank 2 enter the collecting tank for waiting for the subsequent brick making treatment for manufacturing hollow bricks.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.

Claims

1. The red mud treatment system for producing the hollow bricks comprises a mounting frame (1), a mixing tank (2), a screening machine (3) and a feeding assembly (6), wherein the feeding assembly (6) can continuously feed materials into the screening machine (3), the screening machine (3) can feed the screened materials into the mixing tank (2), and the mixing tank (2) is fixed on the mounting frame (1);

the method is characterized in that: the mixing device is characterized in that a first feeding hole (25) is formed in the top of the mixing tank (2) and used for being connected with a discharging end of the screening machine (3), a second feeding hole is formed in the side face of the mixing tank (2) and used for being connected with a material supplementing tank, mixing blades (22) capable of rotatably mixing materials and a crushing assembly (28) are arranged inside the mixing tank (2), and materials are mixed through the mixing blades after being crushed and refined by the crushing assembly (28);

the mixing tank (2) comprises a tank body (21), the mixing blades (22) are coaxially fixed at one end of a rotating shaft (23), the other end of the rotating shaft (23) rotatably penetrates through the tank body (21) to be connected with the output end of a mixing motor (27), and the mixing motor (27) is fixed above the tank body (21);

the crushing assembly (28) is arranged above the mixing blade (22);

the crushing assembly (28) comprises a material baffle plate (281), a crushing cone (283) and a crushing motor (284), wherein the material baffle plate (281) is fixed on the inner wall of the tank body (21), a through hole is formed in the middle of the material baffle plate (281) and is used for a rotating shaft (23) to penetrate through the through hole, a plurality of groups of circumferentially arranged lower hoppers (282) are formed in the material baffle plate (281), the crushing cone (283) is coaxially arranged above each lower hopper (282), the crushing cone (283) is fixed at the output end of the crushing motor (284), and crushing protrusions are uniformly distributed on the surfaces of the crushing cone (283) and the lower hoppers (282);

the crushing motor (284) is fixed on a connecting ring seat (286) by adopting a connecting arm (285), the connecting ring seat (286) is fixedly sleeved outside a follow-up ring seat (287), the lower part of the follow-up ring seat (287) is connected with the output ends of a plurality of groups of telescopic rods (290), the other ends of the telescopic rods (290) are fixed on a fixed base (289), the fixed base (289) is fixed on a material baffle plate (281), and the fixed base (289) is also rotatably connected with a rotating shaft (23) by adopting a bearing;

a guide ring seat (288) capable of guiding the telescopic end of the telescopic rod is coaxially fixed above the fixed base (289);

a guide sleeve (291) is coaxially fixed on the inner wall of the follow-up ring seat (287) so as to provide guidance for the rotating shaft (23);

the telescopic rod (290) can change the distance between the crushing cone (283) and the blanking hopper (282) through expansion and contraction, and the expansion and contraction mode is oscillation type or intermittent adjustment type;

the feeding assembly (6) comprises a feeding pipe (61), a feeding flood dragon (63) and a feeding hopper (64), wherein the feeding flood dragon (63) is rotatably arranged in the feeding pipe (61) and is driven by an external motor to rotate, and one end of the feeding pipe (61) is also provided with the feeding hopper (64;

a plurality of groups of air holes (62) are formed in the outer surface of the feeding pipe (61), the air holes (62) are located at the position of the feeding screw (63), an air feeding bin (9) is arranged outside the feeding pipe (61) and at the position of the air holes (62), and the air feeding bin (9) can continuously convey high-temperature high-pressure dry gas;

an air extraction bin (8) is further fixed on the feeding pipe (61), the air extraction bin (8) is communicated with the top of the feeding pipe (61) through an air extraction pipe (7), the connection position of the air extraction bin is far away from the air supply bin (9), and the air extraction bin (8) can pump water vapor in the feeding pipe (61) to the outside of the air extraction bin;

the mixing device also comprises a pressurizing tank (4), wherein the pressurizing tank (4) can charge pressurizing gas into the mixing tank (2);

and a feeding blade (24) is coaxially fixed on the rotating shaft (23), and the feeding blade (24) is positioned below the feeding hole I (25) and above the crushing assembly (28).

2. The red mud treatment system for producing the air brick of claim 1, wherein: be fixed with three group compounding jars (2) on mounting bracket (1), every group the below of compounding jar (2) all is provided with collecting vessel (5), just the bottom of compounding jar (2) is provided with discharge gate (26) for be linked together with collecting vessel (5), and discharge gate (26) department is provided with the valve body.