Vibration premixing experimental device for phosphogypsum-based composite filler

Abstract

The utility model relates to an ardealite-based composite filler vibration premixing experimental device, which belongs to the field of highway engineering test auxiliary equipment and comprises a stirring component and a vibration component. The stirring assembly comprises a stirring barrel and a stirring paddle, and spiral blades which are sequentially and alternately arranged in the forward direction and the reverse direction are arranged on the stirring paddle; the vibration assembly comprises a vibration table, a stand column, a fixed table, supporting legs and a vibration motor. The four stand columns are connected between the vibration table and the fixed table. A limiting groove is formed in the upper end face of the vibration table, and a fixing hole right opposite to the limiting groove is formed in the fixing table. The stirring barrel is arranged between the limiting groove and the fixing hole; the vibration motor is arranged on the vibration table; the four supporting feet are fixed to the four end feet of the lower end face of the vibration table, and elastic pieces are arranged on the supporting feet. The phosphogypsum compound filler premixing device can quickly, conveniently and uniformly pre-mix phosphogypsum compound filler, the filler is not easy to break in the mixing process, materials with different particle sizes can be fully mixed, the mixing effect is good, and the phosphogypsum compound filler premixing device has the characteristics of convenience in operation, time saving and labor saving.

Description

Technical Field

[0001] The utility model belongs to the field of highway engineering test auxiliary equipment, in particular to a phosphogypsum-based composite filler vibration premixing test device. Background Art

[0002] Phosphogypsum composite filler is made of phosphogypsum as the main raw material, and then mixed with one or more other fillers. It is a composite filler based on the mixture of phosphogypsum solid waste material and other materials. It is a component of phosphogypsum-based asphalt mixture material.

[0003] The Technical Specifications for Highway Asphalt Pavement Construction (JTG F40-2004) stipulates that filler particle size requirements are as follows: 100% for particles less than 0.6 mm, 90-100% for particles less than 0.15 mm, and 70-100% for particles less than 0.075 mm. The particle sizes of individual fillers that make up the phosphogypsum composite filler are also within this range.

[0004] When the phosphogypsum-based composite filler is used as a filler in an asphalt mixture, the individual materials of the composite filler must first be weighed separately, then mixed in a container according to the formula ratio, and then added to the asphalt after mixing.

[0005] Since phosphogypsum fillers are fragile, the commonly used stirring devices will cause great crushing of the materials, which affects the particle size of phosphogypsum-based composite fillers. At present, when mixing phosphogypsum composite fillers in the laboratory, open mixing basins are mostly used, and they are mixed manually. This method requires a lot of manual force during the mixing process. If the force is not well controlled, the filler is easy to splash out of the container, which can easily cause the quality loss of the composite filler and affect the accuracy of the proportion of the phosphogypsum-based composite filler materials. In addition, small particle materials are difficult to mix completely and evenly by manpower; and the manual mixing method consumes a lot of manpower and has low mixing efficiency. Utility Model Content

[0006] In order to overcome the problems existing in the background technology, the utility model provides a vibration premixing experimental device for phosphogypsum-based composite fillers. By designing the blades of the stirring paddle as spiral blades that alternate in forward and reverse directions, the mixing of materials at a lower speed can be achieved, and the mixing movement of the materials in the mixing drum is relatively gentle, which is not easy to cause the fillers to break. In addition, the use of the stirring assembly and the vibration table of the utility model can quickly, conveniently and evenly premix the phosphogypsum composite filler, and can ensure the full mixing of small particle materials, with good mixing effect, and it is also easy to operate, saving time and labor.

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0008] The phosphogypsum-based composite filler vibration premixing experimental device includes a stirring component; the stirring component includes a stirring drum and a stirring paddle arranged in the stirring drum; the stirring paddle is provided with a spiral blade; the spiral blades are alternately arranged in forward and reverse directions, and the outer diameter of the spiral blades is smaller than the inner diameter of the stirring drum; a detachable discharge pipe is provided at the lower end of the stirring drum.

[0009] Preferably, a discharge port is provided at the lower portion of the mixing drum; the discharge pipe is detachably connected to the discharge port; the discharge pipe is a reducer, and its larger aperture end is threadedly connected or clamped to the discharge port.

[0010] Preferably, a plug plate is provided on the discharge port.

[0011] Preferably, the phosphogypsum-based composite filler vibration premixing experimental device also includes a vibration component; the vibration component includes a vibration table, a column, a fixed table, a support leg and a vibration motor; four columns are connected between the vibration table and the fixed table; a limiting groove is provided on the upper end surface of the vibration table, and a fixing hole opposite to the limiting groove is provided on the fixed table; the mixing drum is arranged between the vibration table and the fixed table through the limiting groove and the fixing hole; the vibration motor is arranged on the vibration table; the four support legs are fixed to the four end legs of the lower end surface of the vibration table, and elastic parts are provided on the support legs.

[0012] Preferably, the inner diameter of the limiting groove is larger than the outer diameter of the mixing drum, and a spring is circumferentially provided between the limiting groove and the mixing drum; the inner diameter of the fixing hole is larger than the outer diameter of the mixing drum, and a spring is circumferentially provided between the fixing hole and the mixing drum.

[0013] Preferably, through fixing holes are provided on the column and the fixing platform, and the fixing platform is detachably fixed to the column by fixing pins.

[0014] Preferably, the elastic member is a spring.

[0015] Preferably, the vibration table is provided with an avoidance groove for avoiding the discharge pipe.

[0016] Beneficial effects of the utility model:

[0017] The utility model adopts a dual mode of combining a stirring paddle with a vibration mixing phase to achieve uniform mixing of phosphogypsum-based composite fillers with different particle diameters.

[0018] The utility model designs the stirring paddle as a forward and reverse spiral blade that alternates in sequence. During the operation of the stirring paddle, the rotation of the forward and reverse spiral blades pushes the material in the horizontal direction to achieve horizontal mixing of the material. At the same time, the forward and reverse rotation of the spiral blades is alternately set in the process of pushing the material in the horizontal direction, so that the extrusion density of the material changes in the same horizontal direction (that is, the density of the material in the same horizontal direction is different). This density change causes the material to move up and down to complete the mixing of materials at different heights. The setting of the vibration component strengthens the mixing between the materials. The mixing method of the utility model can achieve the mixing of materials at a relatively low speed. The mixing movement of the materials in the mixing drum is relatively gentle. Compared with the straight blade, the spiral blade is not easy to break the filler and is not easy to cause the filler to break, which ensures the material mixing effect, can achieve the mixing of small particle materials, and improve the material mixing effect.

[0019] The vibration component of the utility model can vibrate the mixing drum up and down, thereby enhancing the mixing effect of the materials in the mixing drum. By arranging a spring between the limiting groove and the fixing hole and the mixing drum, the mixing drum can be shaken 360 degrees in the horizontal direction, thereby further enhancing the mixing effect. In addition, the vibration effect can avoid the formation of dead angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the vibration component of the utility model;

[0022] Figure 3 This is a schematic diagram of the stirring paddle structure of the utility model;

[0023] Figure 4 yes Figure 3 A local enlarged view of point A;

[0024] Figure 5 It is a schematic diagram of the plug board structure of the utility model;

[0025] In the figure, 1-mixing drum, 2-mixing shaft, 3-spiral blade, 4-discharging pipe, 5-discharging port, 6-plug plate, 7-vibrating table, 8-column, 9-fixing table, 10-support foot, 11-vibrating motor, 12-limiting groove, 13-fixing hole, 14-elastic part, 15-spring, 16-avoidance groove, 17-handle, 18-fixing pin. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to facilitate understanding by technicians.

[0027] In the description of the present invention, unless otherwise specified, the terms "left", "right", etc. indicating directions or state relationships are based on the directions or state relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "provided with" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention will be understood according to specific circumstances.

[0029] like Figure 1-5 As shown, the phosphogypsum-based composite filler vibration premixing experimental device comprises a stirring component and a vibration component. The stirring component comprises a stirring drum 1, a stirring paddle arranged in the stirring drum 1, and the paddle of the stirring paddle is a spiral blade 3, and the outer diameter of the spiral blade 3 is smaller than the inner diameter of the stirring drum 1. The spiral blades 3 are arranged alternately in positive and negative directions, that is, the rotation directions of the two adjacent spiral blades 3 are opposite. The stirring paddle is driven by a stirring motor (given that the stirring paddle is driven by a stirring motor as a conventional structure, the transmission connection mode between the stirring motor and the stirring shaft is a conventional mechanism, and the stirring motor is omitted in the attached drawings). Under the drive of the stirring motor, the spiral blade 3 rotates, and the rotation of the spiral blade 3 arranged in positive and negative directions pushes the material in the horizontal direction to achieve the mixing of the material in the horizontal direction. At the same time, the alternating positive and negative rotation of the spiral blade 3 pushes the material in the horizontal direction, so that the material undergoes a change in extrusion density in the same horizontal direction (that is, the material density in the same horizontal direction is different). The density change causes the material to move up and down, and the mixing of materials at different heights is completed. The setting of the vibration component strengthens the mixing between the upper and lower materials. The mixing method of the utility model can achieve material mixing at a relatively low rotation speed. The mixing movement of the materials in the mixing drum 1 is relatively gentle. Compared with the straight blades, the propeller blades are not easy to crush the filler and the seasoning. When mixing the materials, the spiral blades can move the materials without particle size difference, thereby ensuring the material mixing effect, achieving the mixing of small particle materials, and improving the material mixing effect.

[0030] As a preferred solution, the mixing drum 1 is set to have a height-to-diameter ratio of less than 0.8, and is overall short and fat. The mixing distance of the material in the up and down directions is short. Experimental verification shows that the "short and fat" mixing drum 1 has a better mixing effect. Not only is the mixing speed fast, but smaller particle materials are mixed more evenly.

[0031] The vibration assembly includes a vibration table 7, four columns 8, a fixed table 9, four legs 10 and a vibration motor 11. The lower ends of the four columns 8 are fixed to the four end legs of the upper end surface of the vibration table 7, and the fixed table 9 is arranged at the top of the four columns 8; the upper end surface of the vibration table 7 is provided with a limiting groove 12, and the fixed table 9 is provided with a fixing hole 13 directly opposite to the limiting groove 12, the mixing drum 1 is clamped between the limiting groove 12 and the fixing hole 13, and the vibration motor 11 is arranged on the vibration table 7. The inner diameter of the limiting groove 12 is larger than the outer diameter of the mixing drum 1, and a spring 15 is arranged circumferentially between the limiting groove 12 and the mixing drum 1; the inner diameter of the fixing hole 13 is larger than the outer diameter of the mixing drum 1, and a spring 15 is arranged circumferentially between the fixing hole 13 and the mixing drum 1. The operation of the vibration motor 11 causes the vibration table 7 to vibrate, thereby causing the mixing drum 1 to vibrate. At the same time, the inner diameter of the limiting groove 12 and the fixing hole 13 is larger than the outer diameter of the mixing drum 1, and the use of a spring causes the mixing drum 1 to vibrate up and down while vibrating 360 degrees in the horizontal direction, thereby enhancing the material mixing effect. There is a certain dead angle between the mixing blade and the mixing drum, and the vibration can vibrate this part of the remaining material in the mixing drum 1, thereby achieving dead angle-free mixing of the materials. At the same time, the vibration component drives the mixing drum 1 to vibrate, and the dual mode of vibration mixing combined with stirring mixing can ensure that the materials are fully mixed.

[0032] In order to cooperate with the vibration of the mixing drum 1, an elastic member 14 is provided on the support foot 10 so that the vibration table 7 can fully vibrate. The elastic member 14 can be a suitable elastic device, such as a spring.

[0033] The lower end of the mixing drum 1 has a discharge port 5, and a discharge pipe 4 is connected to the discharge port. The discharge pipe 4 is threadedly connected to the discharge port 5. When mixing, the discharge pipe 4 is removed to avoid increasing the deadweight of the mixing drum 1 and preventing the vibration of the mixing drum 1 from damaging the discharge pipe 4. The upper surface of the vibration table 7 is provided with an avoidance groove 16 for avoiding the discharge pipe 4. The discharge port 5 is provided with a plug plate 6, specifically: a plug slot is cut on the discharge pipe 5, the plug slot is slightly larger than 1 / 2 of the diameter of the discharge pipe 5, and the width of the plug slot is slightly larger than the thickness of the plug plate 6. Specifically, the plug plate 6 can be inserted into the plug slot, and the material will not leak out from the gap between the plug plate 6 and the plug slot. The lower half and the upper half of the plug plate 6 are both circular, the lower half is tangent to the inner wall of the discharge port 5, and the outer diameter of the upper half is larger than the outer diameter of the discharge pipe 5. When it is necessary to discharge the material, the plug plate 6 is removed, and during the mixing process, the plug plate 6 is inserted to prevent the material from gushing out of the discharge port 5.

[0034] The discharge pipe 4 is a reducer, and the end connected to the discharge port 5 has a large diameter. The large diameter at the interface can discharge materials to a greater extent, and the small diameter at the outlet can be more accurately aligned with the feeding port of the asphalt mixture mixing equipment.

[0035] As a preferred solution, through fixing holes are provided on the column 8 and the fixing platform 9, and the fixing platform 9 is detachably fixed to the column 8 by a fixing pin 18. When the materials are mixed, the fixing pin 18 is removed, the fixing platform 9 is removed, and the mixing drum 1 is taken out to dump the materials. The removal and dumping method can avoid the materials of the previous test remaining in the mixing drum 1, affecting the accuracy of the material ratio of the next test. When mixing is required, the mixing drum 1 is first placed in the limiting groove 12, and then the fixing platform 9 is covered, and the fixing pin 18 is inserted into the fixing hole to fix the fixing platform 9.

[0036] As a preferred solution, a handle 17 is provided on the inserting plate 6 .

[0037] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A vibration premixing experimental device for phosphogypsum-based composite fillers, characterized in that: The invention comprises a stirring assembly; the stirring assembly comprises a stirring drum (1) and a stirring paddle arranged in the stirring drum (1); the paddles of the stirring paddle are spiral blades (3); the spiral blades (3) are arranged alternately in forward and reverse directions, and the outer diameter of the spiral blades (3) is smaller than the inner diameter of the stirring drum (1); and a detachable discharge pipe (4) is provided at the lower end of the stirring drum (1).

2. The vibration premixing experimental device for phosphogypsum-based composite fillers according to claim 1, characterized in that: A discharge port (5) is provided at the lower part of the mixing drum (1); the discharge pipe (4) is detachably connected to the discharge port (5); the discharge pipe (4) is a reducer, and its larger diameter end is threadedly connected or clamped to the discharge port (5).

3. The vibration premixing experimental device for phosphogypsum-based composite fillers according to claim 2 is characterized in that: The discharge port (5) is provided with an insert plate (6).

4. The vibration premixing experimental device for phosphogypsum-based composite fillers according to any one of claims 1 to 3, characterized in that: The invention also comprises a vibration assembly; the vibration assembly comprises a vibration table (7), a column (8), a fixed table (9), a support foot (10) and a vibration motor (11); the four columns (8) are connected between the vibration table (7) and the fixed table (9); a limiting groove (12) is provided on the upper end surface of the vibration table (7); a fixing hole (13) facing the limiting groove (12) is provided on the fixed table (9); the mixing drum (1) is arranged between the vibration table (7) and the fixed table (9) via the limiting groove (12) and the fixing hole (13); the vibration motor (11) is arranged on the vibration table (7); the four support feet (10) are fixed to four end feet of the lower end surface of the vibration table (7), and an elastic member (14) is provided on the support feet (10).

5. The vibration premixing experimental device for phosphogypsum-based composite fillers according to claim 4 is characterized in that: The inner diameter of the limiting groove (12) is larger than the outer diameter of the mixing drum (1), and a spring (15) is provided circumferentially between the limiting groove (12) and the mixing drum (1); the inner diameter of the fixing hole (13) is larger than the outer diameter of the mixing drum (1), and a spring (15) is provided circumferentially between the fixing hole (13) and the mixing drum (1).

6. The vibration premixing experimental device for phosphogypsum-based composite fillers according to claim 4, characterized in that: The upright column (8) and the fixing platform (9) are provided with through fixing holes, and the fixing platform (9) is detachably fixed to the upright column (8) by a fixing pin (18).

7. The vibration premixing experimental device for phosphogypsum-based composite fillers according to claim 4, characterized in that: The elastic member (14) is a spring.

8. The vibration premixing experimental device for phosphogypsum-based composite fillers according to claim 5, characterized in that: The vibration table (7) is provided with an avoidance groove (16) for avoiding the discharge pipe (4).

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