A phosphogypsum composite mixing system

Abstract

The present invention provides a phosphogypsum composite mixing system, which includes a feeding part and a mixing part, wherein: the feeding part includes a horizontally arranged conveying pipe, one end of the conveying pipe is fixedly connected to a plurality of feed hoppers connected thereto in sequence along its axial direction, and a conveying screw is coaxially arranged in the conveying pipe; the mixing part includes a mixing bucket connected to one end of the conveying pipe away from all the feed hoppers, the mixing bucket is located below the conveying pipe and the end of the mixing bucket away from the conveying pipe is fixedly connected to a discharge pipe, a driving shaft is coaxially arranged in the mixing bucket, a stirring blade is fixedly connected to the outside of the driving shaft, a liquid distributor is also arranged in the mixing bucket, the liquid distributor is fixedly connected to a first liquid inlet pipe connected thereto and the first liquid inlet pipe extends outside the mixing bucket; and a dust removal component is also arranged in the conveying pipe. The present invention solves the problems of high equipment occupancy rate and low production efficiency in the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of phosphogypsum processing auxiliary equipment, and in particular to a phosphogypsum composite mixing system. Background Art

[0002] Phosphogypsum is a new type of material that can be used as a building material. When processing phosphogypsum products, it is generally necessary to dry-mix a variety of materials (other materials except phosphogypsum powder), add water and phosphogypsum, and stir to form a slurry. In the prior art, a stirring device can generally be used. Specifically, the stirring device includes a cylinder and a stirring assembly arranged in the cylinder. The various materials are dry-mixed, and water and phosphogypsum powder are added to stir. Other raw materials such as slag, sand and gravel may have dust on their surfaces, which may cause dust generation during the dry mixing of materials. In the prior art, water washing, wind blowing or exhaustion are generally used to guide the dust away, but these operations are generally performed by other equipment, thus causing the problem of high equipment occupancy rate. At the same time, the transfer of materials between various equipments leads to low material production efficiency. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a phosphogypsum composite mixing system, which solves the problems of high equipment occupancy rate and low production efficiency in the prior art.

[0004] According to an embodiment of the present invention, a phosphogypsum composite mixing system comprises a feeding part and a mixing part, wherein:

[0005] The feeding part comprises a horizontally arranged conveying pipe, one end of which is fixedly connected to a plurality of feed hoppers which are sequentially connected to the conveying pipe along its axial direction, and a conveying screw is also arranged in the conveying pipe to rotate coaxially;

[0006] The mixing part includes a mixing bucket connected to one end of the conveying pipe away from all the feed hoppers, the mixing bucket is located below the conveying pipe and the end of the mixing bucket away from the conveying pipe is fixedly connected to a discharge pipe, a driving shaft is coaxially arranged in the mixing bucket, a stirring blade is fixedly connected to the outside of the driving shaft, a liquid distributor is also arranged in the mixing bucket, the liquid distributor is fixedly connected to a first liquid inlet pipe connected thereto, and the first liquid inlet pipe extends to the outside of the mixing bucket;

[0007] Also included is a dust removal assembly disposed in the conveying pipe.

[0008] In the above embodiment, a plurality of feed hoppers are provided at one end of the horizontally arranged conveying pipe for the introduction of various materials, which are then moved forward under the propulsion of the conveying screw and finally introduced into the mixing bucket, and then water is introduced through the first liquid inlet pipe for final stirring, thereby realizing the stirring operation. During the process, the dust on the surface of the material is guided away by the built-in dust removal component, and in the subsequent stirring, the dust removal is realized during the movement of the material, thus avoiding the occupation of other equipment. At the same time, the whole process is carried out continuously, so the efficiency can be further improved, solving the problems of high equipment occupancy and low production efficiency in the prior art.

[0009] Furthermore, the dust removal assembly includes an arc plate fixedly arranged in the conveying pipe, the arc plate and the inner top wall of the conveying pipe together form a horizontal columnar channel connected to the mixing bucket, and the conveying spiral is located in the columnar channel and is in sliding contact with the inner bottom wall of the columnar channel; wherein, a small hole is opened on the arc plate and the conveying pipe is also connected to a guide pipe, and the small hole is connected to the guide pipe; the feed hopper includes three, and the feed hopper close to the mixing bucket is staggered in the vertical direction with the small hole.

[0010] Furthermore, the delivery pipe is fixedly connected with a connecting bucket, the connecting bucket is communicated with the delivery pipe and is located below the arc-shaped plate, and the outlet pipe is communicated with an end of the connecting bucket away from the delivery pipe.

[0011] Furthermore, a mounting sleeve is fixedly connected to one end of the conveying pipe located above the mixing bucket, the conveying screw is rotatably connected to the mounting sleeve, and the driving shaft is rotatably connected to the mounting sleeve.

[0012] Furthermore, the liquid distributor includes a mounting plate fixedly surrounding the outside of the driving shaft, the driving shaft is in sliding contact with the mounting plate, a cavity surrounding the outside of the driving shaft is provided in the mounting plate, and the first liquid inlet pipe is connected to the cavity; a nozzle connected to the cavity is installed on the lower plate surface of the mounting plate.

[0013] Furthermore, a connecting pipe is fixedly connected between the mounting plate and the mounting sleeve, and the first liquid inlet pipe passes through the connecting pipe.

[0014] Furthermore, the delivery pipe is also fixedly connected to a second liquid inlet pipe located above the mixing bucket.

[0015] Furthermore, a first driving motor is fixedly mounted on one end of the conveying pipe away from the mixing bucket, and a rotating shaft of the first driving motor is fixedly connected to the conveying screw.

[0016] Furthermore, a second drive motor is fixedly installed just below the mixing bucket, and the drive shaft rotates and extends to the bottom of the mixing bucket and is fixedly connected to the rotating shaft of the second drive motor.

[0017] Further, the discharging pipe is inclined, and its higher end is fixedly connected to the side wall of the lower end of the mixing hopper. The inner bottom surface of the mixing hopper is inclined, and the outer edge of the lower side is connected to the discharging pipe.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] Through the horizontally arranged conveying pipe and the multiple feeding hoppers arranged thereon, the material can be continuously added, and the dust is removed during the movement of the material, avoiding occupying other equipment. Finally, the equipment occupancy rate is reduced to the lowest, and at the same time, the stirring efficiency is improved, solving the problems of high equipment occupancy rate and low production efficiency in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0021] Figure 2 is Figure 1 a partially enlarged schematic diagram of the structure at A in

[0022] In the above drawings:

[0023] conveying pipe 1, feeding hopper 2, conveying screw 3, mixing hopper 4, discharging pipe 5, drive shaft 6, stirring blade 7, first liquid inlet pipe 8, first drive motor 9, central shaft 10, spiral blade 11, mounting sleeve 12, reinforcing rod 13, arc plate 14, second drive motor 15, lead-out pipe 16, connecting hopper 17, mounting plate 18, connecting pipe 19, cavity 20, spray head 21, second liquid inlet pipe 22. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the present invention will be further described below with reference to the drawings and embodiments.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0026] As Figure 1 shown, this embodiment provides a phosphogypsum composite mixing system, which includes a feeding part and a mixing part, wherein:

[0027] The feeding part comprises a horizontally arranged conveying pipe 1, one end of which is fixedly connected to a plurality of feed hoppers 2 which are sequentially connected to the conveying pipe 1 along its axial direction, and a conveying screw 3 is coaxially arranged in the conveying pipe 1 to rotate;

[0028] The mixing part includes a mixing bucket 4 connected to one end of the conveying pipe 1 away from all the feeding buckets 2, the mixing bucket 4 is located below the conveying pipe 1 and the end of the mixing bucket 4 away from the conveying pipe 1 is fixedly connected to a discharge pipe 5, a driving shaft 6 is coaxially arranged in the mixing bucket 4, a stirring blade 7 is fixedly connected to the outside of the driving shaft 6, and a liquid distributor is also arranged in the mixing bucket 4, the liquid distributor is fixedly connected to a first liquid inlet pipe 8 connected thereto and the first liquid inlet pipe 8 extends to the outside of the mixing bucket 4;

[0029] It also includes a dust removal component arranged in the conveying pipe 1.

[0030] In the above embodiment, a plurality of feed hoppers 2 are provided at one end of the horizontally arranged conveying pipe 1 for the introduction of various materials, which are then moved forward under the propulsion of the conveying screw 3 and finally introduced into the mixing hopper 4, and then water is introduced through the first liquid inlet pipe 8 for final stirring, thereby realizing the stirring operation. During the process, the dust on the surface of the material is guided away by the built-in dust removal component, and in the subsequent stirring, the dust removal is realized during the material movement process, thus avoiding the occupation of other equipment. At the same time, the whole process is carried out continuously, so the efficiency can be further improved, solving the problems of high equipment occupancy and low production efficiency in the prior art.

[0031] Specifically, the conveying screw 3 in this embodiment is driven by a first drive motor 9 arranged outside the conveying pipe 1. Specifically, the first drive motor 9 is fixedly installed at one end of the conveying pipe 1 away from the mixing bucket 4, and the rotating shaft of the first drive motor 9 is fixedly connected to the conveying screw 3, that is, the conveying screw 3 includes a central axis 10 and spiral blades 11 surrounding the outside of the central axis 10. One end of the central axis 10 rotates and extends outside the conveying pipe 1 and is fixedly connected to the rotating shaft of the first drive motor 9, and the other end is rotationally supported by a separately provided support assembly. The support assembly is specifically a mounting sleeve 12 fixedly installed in the end of the conveying pipe 1 away from the first drive motor 9, and the mounting sleeve 12 is located above the mixing bucket 4. The mounting sleeve 12 is sleeved on the end of the central axis 10 to provide rotation support for the central axis 10, so that the conveying screw 3 can run more smoothly;

[0032] Furthermore, the upper end of the drive shaft 6 is also rotatably connected to the mounting sleeve 12, that is, the mounting sleeve 12 also provides rotational support for the drive shaft 6. In order to make the mounting sleeve 12 more stable, a reinforcing rod 13 may be further provided to enhance the connection strength between the mounting sleeve 12 and the conveying pipe 1. However, the arrangement of the mounting sleeve 12 and the reinforcing rod 13 does not prevent the material from moving from the horizontal conveying pipe 1 to the mixing bucket 4.

[0033] In a further embodiment, Figure 1 As shown, the dust removal assembly includes an arc plate 14 fixedly arranged in the conveying pipe 1, and the arc plate 14 and the inner top wall of the conveying pipe 1 are combined to form a horizontal columnar channel connected to the mixing bucket 4, and the conveying screw 3 is located in the columnar channel and is in sliding contact with the inner bottom wall of the columnar channel. After the material falls from the feed hopper 2, it enters the columnar channel and then moves under the push of the conveying screw 3. During the movement, part of the material can also be pre-mixed, so that the mixing efficiency can be improved after it is finally introduced into the mixing bucket 4; wherein, the arc plate 14 is provided with a small hole and the conveying pipe 1 is also connected to a guide pipe 16, and the small hole is connected to the guide pipe 16. During the movement of the material, the material is also rolling, Therefore, the dust on the material can fall into the outlet pipe 16 through the small holes to a certain extent, and then be discharged through the outlet pipe 16. Furthermore, an exhaust fan can be connected to the end of the outlet pipe 16 away from the conveying pipe 1 to exhaust air, thereby making the dust discharge more efficient; the feed hopper 2 includes three, and the feed hopper 2 close to the mixing hopper 4 is staggered with the small holes in the vertical direction. When feeding, the phosphogypsum is introduced through the feed hopper 2 staggered with the small holes, that is, no small holes are set under the phosphogypsum to avoid the phosphogypsum powder being discharged in the form of dust, thereby avoiding the loss of raw materials, and a number of small holes are set under the other feed hoppers 2, which can make it more convenient to discharge dust on other materials.

[0034] like Figure 1 As shown, the conveying pipe 1 is fixedly connected to a connecting bucket 17, the connecting bucket 17 is communicated with the conveying pipe 1 and is located below the arc plate 14, and the outlet pipe 16 is communicated with an end of the connecting bucket 17 away from the conveying pipe 1, that is, the dust falling through all the small holes enters the connecting bucket 17, and then enters the outlet pipe 16 and is guided away.

[0035] In a further embodiment, Figure 1 , 2As shown, the liquid distributor includes a mounting plate 18 fixedly surrounding the outside of the driving shaft 6, a connecting pipe 19 is fixedly connected between the mounting plate 18 and the mounting sleeve 12, and the first liquid inlet pipe 8 passes through the connecting pipe 19, so that the connection strength between the mounting plate 18 and the mounting sleeve 12 can be enhanced, so that the mounting sleeve 12 also provides a reinforcement foundation for the mounting plate 18, so that the stability of the mounting plate 18 is improved;

[0036] The drive shaft 6 is in sliding contact with the mounting plate 18, and a cavity 20 surrounding the outside of the drive shaft 6 is provided in the mounting plate 18, and the first liquid inlet pipe 8 is connected to the cavity 20; a nozzle 21 connected to the cavity 20 is installed on the lower plate surface of the mounting plate 18, that is, when the water is added in the present embodiment, the water is introduced into the cavity 20 in the mounting plate 18 through the first liquid inlet pipe 8, and then guided into the mixing bucket 4 through the nozzle 21, and the nozzle 21 is arranged on the lower plate surface of the entire mounting plate 18, and water is introduced at a certain pressure when adding water, so as to form a spray water column in the mixing bucket 4, so that the water addition can be more uniform, and the local material agglomeration caused by the water entering in strands is avoided, so that the mixing can be carried out efficiently in the end; further, the mounting plate 18 of the present embodiment also continues to provide rotation support for the drive shaft 6, so that there are three support points on the drive shaft 6, and the operation is more stable, and the stirring blade 7 is arranged below the mounting plate 18, that is, the stirring operation is carried out at the lower end of the mixing bucket 4;

[0037] In a further embodiment, the present embodiment is further fixedly connected to the conveying pipe 1 with a second liquid inlet pipe 22 located above the mixing bucket 4. During specific operation, the second liquid inlet pipe 22 is used to introduce a large amount of water, which can assist in improving the water inlet efficiency, and the provided liquid distributor plays a major role. Specifically, water is first introduced evenly through the liquid distributor to make the material mixing evenly at the initial stage. After the mixing reaches a certain degree, a large amount of water is introduced in conjunction with the second liquid inlet pipe 22 to accelerate the speed. At the same time, the second liquid inlet pipe 22 is located above the mounting sleeve 12, and can be used for the mixing of the materials. The mounting sleeve 12 is flushed to flush away the material accumulated on the mounting sleeve 12 (the same is true for the upper surface of the mounting plate 18); however, the mounting sleeve 12 is separated from the arc plate 14 in the vertical direction, that is, there is a gap between the two, which can prevent the water of the second liquid inlet pipe 22 from entering the columnar channel, thereby preventing the water from causing adverse effects on the lateral movement of the material in the conveying pipe 1; in a further embodiment, the conveying screw 3 can also be arranged to be inclined, that is, the lower end is arranged close to the mounting sleeve 12, which can prevent water from migrating into the columnar channel along the conveying screw 3.

[0038] In a further embodiment, Figure 1As shown, a second driving motor 15 is fixedly installed directly below the mixing hopper 4. The driving shaft 6 rotatably extends below the mixing hopper 4 and is fixedly connected to the rotating shaft of the second driving motor 15, that is, the driving shaft 6 is driven by the second driving motor 15. Further, the discharge pipe 5 is inclined, and its higher end is fixedly connected to the side wall of the lower end of the mixing hopper 4. The inner bottom surface of the mixing hopper 4 is inclined, and the outer edge of the lower side is connected to the discharge pipe 5. The inclined inner bottom surface can enable all materials to enter the discharge pipe 5 faster, and thus be quickly guided away through the inclined discharge pipe 5.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A phosphogypsum composite mixing system, characterized in that, It includes a feeding section and a mixing section, wherein: The feeding part comprises a horizontally arranged conveying pipe, one end of which is fixedly connected to a plurality of feed hoppers which are sequentially connected to the conveying pipe along its axial direction, and a conveying screw is also arranged in the conveying pipe to rotate coaxially; The mixing part includes a mixing bucket connected to one end of the conveying pipe away from all the feed hoppers, the mixing bucket is located below the conveying pipe and the end of the mixing bucket away from the conveying pipe is fixedly connected to a discharge pipe, a driving shaft is coaxially arranged in the mixing bucket, a stirring blade is fixedly connected to the outside of the driving shaft, a liquid distributor is also arranged in the mixing bucket, the liquid distributor is fixedly connected to a first liquid inlet pipe connected thereto, and the first liquid inlet pipe extends to the outside of the mixing bucket; It also includes a dust removal component arranged in the conveying pipe; the dust removal component includes an arc plate fixedly arranged in the conveying pipe, the arc plate and the inner top wall of the conveying pipe together form a horizontal columnar channel connected to the mixing bucket, and the conveying spiral is located in the columnar channel and is in sliding contact with the inner bottom wall of the columnar channel; wherein, a small hole is opened on the arc plate and the conveying pipe is also connected to a guide pipe, and the small hole is connected to the guide pipe; the feed hopper includes three, and the feed hopper close to the mixing bucket is staggered in the vertical direction with the small hole.

2. The phosphogypsum composite mixture system according to claim 1, characterized in that The conveying pipe is fixedly connected with a connecting bucket, the connecting bucket is communicated with the conveying pipe and is located below the arc plate, and the outlet pipe is communicated with an end of the connecting bucket away from the conveying pipe.

3. The phosphogypsum composite mixing system according to claim 1, wherein A mounting sleeve is fixedly connected to one end of the conveying pipe located above the mixing bucket, the conveying screw is rotatably connected to the mounting sleeve, and the driving shaft is rotatably connected to the mounting sleeve.

4. The phosphogypsum composite mixing system according to claim 3, characterized in that, The liquid distributor includes a mounting plate fixedly surrounding the outside of the driving shaft, the driving shaft is in sliding contact with the mounting plate, a cavity surrounding the outside of the driving shaft is provided in the mounting plate, and the first liquid inlet pipe is connected to the cavity; a nozzle connected to the cavity is installed on the lower plate surface of the mounting plate.

5. The phosphogypsum composite mixing system according to claim 4, characterized in that A connecting pipe is fixedly connected between the mounting plate and the mounting sleeve, and the first liquid inlet pipe passes through the connecting pipe.

6. The phosphogypsum composite mixing system according to claim 3, characterized in that, The delivery pipe is also fixedly connected with a second liquid inlet pipe located above the mixing bucket.

7. The phosphogypsum composite mixture system according to any one of claims 1-6, characterized in that, A first driving motor is fixedly mounted on one end of the conveying pipe away from the mixing bucket, and a rotating shaft of the first driving motor is fixedly connected to the conveying screw.

8. The phosphogypsum composite mixture system according to any one of claims 1-6, characterized in that, A second drive motor is fixedly installed just below the mixing bucket, and the drive shaft rotates and extends to the bottom of the mixing bucket and is fixedly connected to the rotating shaft of the second drive motor.

9. The phosphogypsum composite mixture system according to claim 8, wherein, The discharge pipe is arranged obliquely and its higher end is fixedly connected to the lower side wall of the mixing bucket. The inner bottom surface of the mixing bucket is arranged obliquely and the outer edge of the lower side is connected to the discharge pipe.

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