Production equipment for iron tailing sand concrete

Abstract

The invention relates to production equipment for iron tailing sand concrete, which comprises a concrete mixing drum and an iron tailing sand mixing box, the iron tailing sand mixing box is provided with an iron tailing sand inlet and an iron tailing sand outlet, and the iron tailing sand outlet is communicated with the inside of the concrete mixing drum through a filter screen; a driving roller, an extrusion plate and an extrusion roller are arranged in the iron tailing sand stirring box, the extrusion plate is in a V shape and divides the interior of the iron tailing sand stirring box into an upper space and a lower space, the upper space and the lower space are communicated through a through hole of the extrusion plate, and the through hole of the extrusion plate is located in the bottom position of the V shape. Protruding blocks are arranged on the inner wall of the iron tailing sand stirring box. The iron tailing sand stirring box is specially arranged, and iron tailing sand can be filtered, crushed and ground in advance before iron tailing sand concrete is stirred, so that the fineness modulus of the iron tailing sand during production of the iron tailing sand concrete is guaranteed, and the quality stability of the iron tailing sand concrete is guaranteed.

Description

Technical Field

[0001] The invention relates to production equipment for iron tailings sand concrete. Background Art

[0002] Iron tailings sand concrete is a type of concrete that uses extra-fine iron tailings sand instead of natural sand when preparing concrete. Among them, the fineness modulus of iron tailings sand is generally required to be between 1.0-1.2. When producing iron tailings sand concrete, it is generally mixed with other concrete raw materials by purchasing iron tailings sand that meets the fineness modulus. However, sometimes there is iron tailings sand that does not meet the fineness modulus left in the purchased iron tailings sand, resulting in unstable quality of the prepared iron tailings sand concrete. Summary of the invention

[0003] The technical problem to be solved by the present invention is: In order to overcome the above technical problems, the present invention provides a production equipment for iron tailings sand concrete.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a production equipment for iron tailings sand concrete, comprising a concrete mixing drum, the concrete mixing drum having a raw material inlet and a concrete outlet, and also comprising an iron tailings sand mixing box, the iron tailings sand mixing box is arranged on the top of the concrete mixing drum, the iron tailings sand mixing box has an iron tailings sand inlet and an iron tailings sand outlet, the iron tailings sand outlet is connected with the interior of the concrete mixing drum through a filter screen; the iron tailings sand mixing box is provided with an active roller, an extrusion plate and an extrusion roller, the extrusion plate is V-shaped and the extrusion plate divides the interior of the iron tailings sand mixing box into two upper and lower spaces, the upper and lower spaces are connected through the through hole of the extrusion plate, the through hole of the extrusion plate is located at the bottom of the V-shape, the active roller is arranged at the iron tailings sand The squeezing roller is arranged in the upper space inside the mixing box, and the squeezing roller is arranged in the lower space inside the iron tailings sand mixing box. A driven roller is arranged on each of the left and right sides of the active roller. There is a gap between the driven roller and the active roller. The surface of the active roller is provided with a convex rib extending along the axial direction of the active roller, and the minimum gap between the surface of the active roller and the driven roller is smaller than the target particle size of the iron tailings sand, and the minimum spacing between the surface of the active roller and the squeezing plate is smaller than the target particle size of the iron tailings sand; the surface of the squeezing roller is provided with an squeezing rib extending along the axial direction of the roller, and the minimum spacing between the surface of the squeezing roller and the inner wall of the iron tailings sand mixing box is smaller than the target particle size of the iron tailings sand, the surface of the squeezing rib is an arc surface, and the inner wall of the iron tailings sand mixing box is provided with a convex block, and the convex block is located below the minimum spacing between the surface of the squeezing roller and the inner wall of the iron tailings sand mixing box.

[0005] The iron tailings sand inlet is composed of two inclined plates arranged opposite to each other, and the inclined plates are inclined to each other, so that the iron tailings sand inlet gradually decreases from top to bottom.

[0006] The extrusion plate is arranged in the middle of the iron tailings sand mixing box.

[0007] The extrusion plate is fixed to the inner wall of the iron tailings sand mixing box through a support frame.

[0008] The cross section of the extrusion rib is semicircular, and the protrusion is rectangular.

[0009] The beneficial effect of the present invention is that the production equipment for iron tailings sand concrete of the present invention is specially provided with an iron tailings sand mixing box, which can filter, crush and grind the iron tailings sand in advance before mixing the iron tailings sand concrete, thereby ensuring the fineness modulus of the iron tailings sand during the production of the iron tailings sand concrete, thereby ensuring the stability of the quality of the iron tailings sand concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0011] Figure 1 It is a structural schematic diagram of a production device for iron tailings sand concrete according to the present invention.

[0012] Figure 2 The present invention is a schematic diagram of the internal structure of an iron tailings sand mixing box in a production device for iron tailings sand concrete.

[0013] Figure 3 The present invention is a schematic diagram of the top view of an iron tailings sand mixing box in a production device for iron tailings sand concrete.

[0014] Figure 4 It is a schematic diagram of the top structure of the extruded plate of the present invention.

[0015] Figure 5 It is a schematic diagram of the top structure of the squeezing roller of the present invention.

[0016] Figure 6 yes Figure 2 A partial enlarged view of point A in the middle.

[0017] In the figure, 100 is a concrete mixing drum, 101 is a raw material inlet, 102 is a concrete outlet, 200 is an iron tailings sand mixing box, 1 is an iron tailings sand inlet, 2 is an iron tailings sand outlet, 2-1 is a filter screen, 3 is an active roller, 3-1 is a convex rib, 4 is an extrusion plate, 4-1 is a through hole, 5 is an extrusion roller, 5-1 is an extrusion rib, 6 is a driven roller, 7 is a convex block, 8 is an inclined plate, 9 is a motor, and 10 is a support frame. DETAILED DESCRIPTION

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0019] like Figure 1 As shown, a production equipment for iron tailings sand concrete of the present invention comprises a concrete mixing drum 100, the concrete mixing drum 100 has a raw material inlet 101 and a concrete outlet 102, and also comprises an iron tailings sand mixing box 200, the iron tailings sand mixing box 200 is arranged at the top of the concrete mixing drum 100, the iron tailings sand mixing box 200 has an iron tailings sand inlet 1 and an iron tailings sand outlet 2, and the iron tailings sand outlet 2 is connected to the inside of the concrete mixing drum 100 through a filter screen 2-1. The present invention is particularly provided with an iron tailings sand mixing box 200, which can filter, crush and grind the iron tailings sand in advance before mixing the iron tailings sand concrete, thereby ensuring the fineness modulus of the iron tailings sand during the production of the iron tailings sand concrete, thereby ensuring the stability of the quality of the iron tailings sand concrete. Pour the iron tailings sand into the iron tailings sand inlet 1, and other raw materials into the raw material inlet 101, and the iron tailings sand after filtering, crushing and grinding enters the interior of the concrete mixing drum 100 from the filter screen 2-1 of the iron tailings sand outlet 2. The mesh number of the filter screen 2 - 1 can be selected according to the requirements of the iron tailings sand concrete for the fineness of the iron tailings sand. Then, the concrete mixing drum 100 is used to mix the raw materials with the iron tailings sand, and the iron tailings sand concrete is produced and discharged from the concrete outlet 102 .

[0020] like Figure 2-3 As shown, the iron tailings sand mixing box 200 is provided with a driving roller 3, a squeezing plate 4 and a squeezing roller 5. Figure 4 As shown, the extrusion plate 4 is V-shaped and the extrusion plate 4 divides the interior of the iron tailings sand mixing box 200 into two upper and lower spaces, which are connected through the through hole 4-1 of the extrusion plate 4. The through hole 4-1 of the extrusion plate 4 is located at the bottom of the V-shape. The active roller 3 is arranged in the upper space inside the iron tailings sand mixing box 200, and the extrusion roller 5 is arranged in the lower space inside the iron tailings sand mixing box 200. A driven roller 6 is arranged on the left and right sides of the active roller 3, and there is a gap between the driven roller 6 and the active roller 3. Figure 2 As shown, the surface of the active roller 3 is provided with a rib 3-1 extending along the axial direction of the active roller 3, and the minimum gap between the surface of the active roller 3 and the driven roller 6 is smaller than the target particle size of the iron tailings sand, and the minimum distance between the surface of the active roller 3 and the extrusion plate 4 is smaller than the target particle size of the iron tailings sand. The target particle size of the iron tailings sand refers to the maximum value in the particle size range required for preparing the iron tailings sand concrete. Figure 2 , 5 As shown, the surface of the squeezing roller 5 is provided with squeezing ribs 5-1 extending along the roller axis, the minimum distance between the surface of the squeezing roller 5 and the inner wall of the iron tailings sand mixing box 200 is smaller than the target particle size of the iron tailings sand, and the surface of the squeezing ribs 5-1 is a curved surface. Figure 2 , 6 As shown, a protrusion 7 is provided on the inner wall of the iron tailings sand mixing box 200 , and the protrusion 7 is located below the minimum distance between the surface of the squeezing roller 5 and the inner wall of the iron tailings sand mixing box 200 .

[0021] The driving roller 3 and the driven roller 6 realize transmission through the entry of the iron tailings. The driving roller 3 is driven to rotate by the motor 9. The minimum gap between the surface of the driving roller 3 and the driven roller 6 is smaller than the target particle size of the iron tailings. When the iron tailings enter the gap between the driven roller 6 and the driving roller 3, the iron tailings are larger than the above minimum gap, so that the iron tailings are squeezed by the driving roller 3 and the driven roller 6 while rotating with the driving roller 3, and the iron tailings are conveyed downward and the larger iron tailings are crushed and ground. Similarly, when the iron tailings enter between the driving roller 3 and the squeezing roller 5, since the minimum gap between the surface of the driving roller 3 and the squeezing plate 4 is smaller than the target particle size of the iron tailings, the iron tailings are squeezed by the driving roller 3 and the squeezing plate 4 while rotating with the driving roller 3, and the iron tailings are conveyed downward and the larger iron tailings are crushed and ground. The iron tailings sand slides down along the V-shaped extrusion plate 4 to the through hole 4-1 and enters the space below, and is crushed and ground by the extrusion ribs 5-1 of the extrusion roller 5 and the protrusions 7 on the inner wall of the iron tailings sand mixing box 200, and is finally filtered through the filter screen 2-1 and enters the concrete mixing drum 100.

[0022] like Figure 2 , 3 As shown, the iron tailings inlet 1 is composed of two inclined plates 8 arranged opposite to each other, and the inclined plates 8 are inclined to each other, so that the iron tailings inlet 1 gradually shrinks from top to bottom, and the smaller opening of the iron tailings inlet 1 is close to the active roller 3 and smaller than the outer diameter of the active roller 3. In this way, the poured iron tailings can fall toward the active roller 3. The squeezing plate 4 is arranged in the middle of the iron tailings mixing box 200.

[0023] like Figure 2 As shown, the extrusion plate 4 is fixed to the inner wall of the iron tailings sand mixing box 200 through the support frame 10.

[0024] like Figure 6 As shown, the cross section of the extrusion rib 5-1 is semicircular, and the protrusion 7 is rectangular. The semicircular extrusion rib 5-1 and the rectangular protrusion 7 work together to achieve collision with the iron tailings, and the tip of the protrusion 7 can achieve tip impact with the iron tailings. The extrusion rib 5-1 can increase the contact surface with the iron tailings, increase the friction force on the iron tailings during collision, ensure the adhesion of the iron tailings and the tip of the protrusion 7, and improve the crushing effect of the collision on the iron tailings.

[0025] The driving roller 3 and the squeezing roller 5 can be driven to rotate by the motor 9 respectively. Figure 3 The top view shows the motor 9 of the active roller 3. The motor 9 can realize forward and reverse rotation. The forward and reverse rotation of the motor 9 can make the active roller 3 and the squeezing roller 5 rotate forward or reverse to prevent the material from being stuck and accumulated in one place. When rotating in the reverse direction, the material at the stuck accumulation place can be driven in the reverse direction to get rid of the stuck state.

[0026] The production equipment for iron tailings sand concrete of the present invention is specially provided with an iron tailings sand mixing box 200, which can filter, crush and grind the iron tailings sand in advance before mixing the iron tailings sand concrete, thereby ensuring the fineness modulus of the iron tailings sand during the production of the iron tailings sand concrete, thereby ensuring the stability of the quality of the iron tailings sand concrete.

[0027] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A production device for iron tailings sand concrete, comprising a concrete mixing drum (100), wherein the concrete mixing drum (100) has a raw material inlet (101) and a concrete outlet (102), characterized in that: It also comprises an iron tailings sand mixing box (200), the iron tailings sand mixing box (200) is arranged on the top of the concrete mixing drum (100), the iron tailings sand mixing box (200) has an iron tailings sand inlet (1) and an iron tailings sand outlet (2), and the iron tailings sand outlet (2) is connected to the inside of the concrete mixing drum (100) through a filter screen (2-1); The iron tailings sand mixing box (200) is provided with a driving roller (3), a squeezing plate (4) and a squeezing roller (5) inside. The squeezing plate (4) is V-shaped and the squeezing plate (4) divides the inside of the iron tailings sand mixing box (200) into two upper and lower spaces. The upper and lower spaces are connected through a through hole (4-1) of the squeezing plate (4). The through hole (4-1) of the squeezing plate (4) is located at the bottom of the V shape. The driving roller (3) is arranged in the upper space inside the iron tailings sand mixing box (200). The squeezing roller (5) is arranged in the lower space inside the iron tailings sand mixing box (200). A driven roller (6) is respectively arranged on the left and right sides of the driving roller (3). There is a gap between the driven roller (6) and the driving roller (3). The driving roller (3) ) is provided with a convex rib (3-1) extending along the axial direction of the active roller (3), and the minimum gap between the surface of the active roller (3) and the driven roller (6) is smaller than the target particle size of the iron tailings sand, and the minimum spacing between the surface of the active roller (3) and the extrusion plate (4) is smaller than the target particle size of the iron tailings sand; the surface of the extrusion roller (5) is provided with an extrusion rib (5-1) extending along the axial direction of the roller, and the minimum spacing between the surface of the extrusion roller (5) and the inner wall of the iron tailings sand mixing box (200) is smaller than the target particle size of the iron tailings sand, the surface of the extrusion rib (5-1) is an arc surface, and the inner wall of the iron tailings sand mixing box (200) is provided with a convex block (7), and the convex block (7) is located below the minimum spacing between the surface of the extrusion roller (5) and the inner wall of the iron tailings sand mixing box (200).

2. The production equipment for iron tailings sand concrete according to claim 1, characterized in that: The iron tailings inlet (1) is composed of two inclined plates (8) arranged opposite to each other, and the inclined plates (8) are inclined to each other, so that the iron tailings inlet (1) gradually decreases from top to bottom.

3. The production equipment for iron tailings sand concrete according to claim 1, characterized in that: The extrusion plate (4) is arranged in the middle of the iron tailings sand mixing box (200).

4. The production equipment for iron tailings sand concrete according to claim 1, characterized in that: The extrusion plate (4) is fixed to the inner wall of the iron tailings sand mixing box (200) via a support frame (10).

5. The production equipment for iron tailings sand concrete according to claim 1, characterized in that: The cross section of the extrusion rib (5-1) is semicircular, and the protrusion (7) is rectangular.

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