Production device for preparing cementing material from superfine flotation phosphate tailings

Abstract

The utility model relates to the technical field of cementing material preparation equipment, in particular to a production device for preparing a cementing material from superfine flotation phosphate tailings, which is formed by assembling an elevator, a raw material bin, a screw feeder, a metering scale, a collecting hopper, a dry powder stirrer, a finished product bin and a packaging machine from top to bottom through a steel structure and is provided with a control system. The number of the raw material bins is multiple, an inverted-cone-shaped lifting hopper is installed on the top of the elevator, a disconnecting link is arranged at the bottom of the inverted-cone-shaped lifting hopper, and the inverted-cone-shaped lifting hopper is sequentially connected with the raw material bins, the spiral feeder, the metering scale, the collecting hopper, the dry powder stirrer, the finished product bin and the packaging machine. According to the production device for preparing the cementing material from the superfine flotation phosphate tailings, the elevator, the raw material bin, the screw feeder, the metering scale, the collecting hopper, the dry powder stirrer, the finished product bin, the packaging machine and the like are integrated, and a control system is matched, so that small-batch rapid processing of novel cementing materials with different raw materials and different proportions is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of cementitious material preparation, and specifically, to a production device for preparing cementitious materials from ultra-fine flotation phosphorus tailings. Background Art

[0002] Mining underground filling and open-pit backfilling in mines rely on cement as a gelling material, resulting in a large consumption of cement and high filling / backfilling costs. Therefore, more and more solutions using solid waste resources to replace cement as a new gelling material have been proposed. Such new gelling materials have low costs and can also consume a large amount of solid waste. Among them, ultra-fine flotation phosphorus tailings, water-quenched slag from iron and steel smelters, sulfur-free fly ash from thermal power plants, sintering red mud from aluminum plants, etc. in solid waste materials are all excellent cement substitutes. The new gelling material is prepared by mixing various solid waste materials with various reagents (such as water reducers, activators, etc.). However, the prior art cannot achieve the rapid processing of gelling materials with different raw material ratios, which limits the application of ultra-fine flotation phosphorus tailings in the preparation of new gelling materials. Content of the Utility Model

[0003] The purpose of the utility model is to provide a production device for preparing cementitious materials from ultra-fine flotation phosphorus tailings, so as to solve the problem in the above background art that the prior art cannot achieve the rapid processing of new cementitious materials with different raw materials and different ratios, which restricts the research and development and application of ultra-fine flotation phosphorus tailings in new cementitious materials.

[0004] To achieve the above purpose, the utility model provides a production device for preparing cementitious materials from ultra-fine flotation phosphorus tailings, which is assembled from a hoist, a raw material bin, a screw feeder, a weighing scale, an aggregate hopper, a dry powder mixer, a finished product bin, and a bagging machine from top to bottom through a steel structure, and is equipped with a control system. A plurality of raw material bins are provided, and an inverted conical feeding hopper is installed at the top of the hoist, and a knife gate is provided at the bottom of the inverted conical feeding hopper. The inverted conical feeding hopper is sequentially connected to the raw material bin, the screw feeder, the weighing scale, the aggregate hopper, the dry powder mixer, the finished product bin, and the bagging machine.

[0005] Preferably, the steel structure includes multiple working platforms, and the working platforms at each layer are connected by a ladder.

[0006] Preferably, 10 raw material bins are provided and are located on the working platforms of the same layer, including 4 large-capacity raw material bins and 6 small-capacity raw material bins. The volume of the four large bins is 4m 3 ~6m 3 , which are used to store raw materials with a large proportion in the ratio, such as solid waste materials like ultra-fine flotation phosphorus tailings. The other six small bins are 2m 3 ~3m 3 , which are used for reagent raw materials such as activators and water reducers with less consumption.

[0007] Preferably, there are two aggregate hoppers. Under each raw material bin, there is a screw feeder and a weighing scale. The raw materials from the weighing scale enter the corresponding aggregate hopper and then enter from the feeding ports on both sides at the top of the dry powder mixer. The weighing scale has a high-precision weighing function, with the weighing error of solid waste raw materials controlled within ±1 kg and the weighing error of reagent raw materials controlled within ±0.5 kg. The volume of the dry powder mixer is designed to be 0.5 m 3 ~1.5 m 3 , which is suitable for mixing and preparing new cementitious materials.

[0008] Preferably, the screw feeder is located below the discharge port of the raw material bin. The weighing scale and the aggregate hopper are successively located below the discharge end of the screw feeder. The dry powder mixer is located at the bottom discharge port of the aggregate hopper, and the finished product bin is located below the discharge end of the dry powder mixer.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0010] In the production device for preparing cementitious materials from ultrafine flotation phosphorus tailings, by integrating equipment such as an elevator, raw material bins, screw feeders, weighing scales, aggregate hoppers, dry powder mixers, finished product bins, and bagging machines, and equipped with a control system, it realizes the small-batch and rapid processing of new cementitious materials with different raw materials and different ratios. This device not only improves the storage and feeding efficiency of raw materials but also ensures the accuracy of raw material ratios through a high-precision weighing scale, thereby improving the preparation quality and stability of new cementitious materials. In addition, the design of the dry powder mixer meets the requirements for mixing and preparing new cementitious materials, making the entire preparation process more efficient and environmentally friendly. Generally speaking, this test device effectively solves the challenges faced by the prior art in the comprehensive utilization of ultrafine flotation phosphorus tailings, provides strong support for the research and application of new cementitious materials, and promotes the process of resource utilization of phosphorus tailings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0012] Figure 2 is a schematic diagram of the side structure of the present utility model;

[0013] Figure 3 is a schematic diagram of the structure of the raw material bin in the present utility model;

[0014] Figure 4 is a schematic diagram of the bottom structure of the inverted conical lifting hopper in the present utility model.

[0015] The meanings of each label in the figure are as follows:

[0016] 1. Hoist; 2. Inverted conical feeding hopper; 3. Knife switch; 4. Raw material bin; 5. Screw feeder; 6. Weighing scale; 7. Aggregate hopper; 8. Dry powder mixer; 9. Finished product bin; 10. Bagging machine; 11. Control system; 12. Steel structure; 13. Escalator. Detailed implementation manner

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] The present invention provides a production device for preparing cementitious materials from ultrafine flotation phosphorus tailings, as Figures 1 - 4 shown, which is assembled from a hoist 1, a raw material bin 4, a screw feeder 5, a weighing scale 6, an aggregate hopper 7, a dry powder mixer 8, a finished product bin 9, and a bagging machine 10 from top to bottom through a steel structure 12, and is equipped with a control system 11. The steel structure 12 includes multiple working platforms, and the working platforms at each layer are connected by an escalator 13, which is convenient for operators to maintain and observe.

[0019] An inverted conical feeding hopper 2 is installed at the top of the hoist 1, and a knife switch 3 is provided at the bottom of the inverted conical feeding hopper 2, which is convenient for the lifting and discharging operations of various raw materials.

[0020] There are 10 raw material bins 4 located on the same working platform, including 4 large-capacity raw material bins and 6 small-capacity raw material bins. The volume of the four large bins is 4m 3 ~6m 3 , which are used to store raw materials with a large proportion in the formula, such as solid waste materials like ultrafine flotation phosphorus tailings. The other six small bins are 2m 3 ~3m 3 , which are used for reagent raw materials such as activators and water reducers with less consumption. This classified storage design not only facilitates the management and access of different raw materials, but also ensures the quality and stability of the raw materials during storage.

[0021] There are two aggregate hoppers 7. A screw feeder 5 and a weighing scale 6 are provided below each raw material bin 4. The raw materials from the weighing scale 6 enter the corresponding aggregate hopper 7 and then enter the dry powder mixer 8 through the feeding ports on both sides at the top of the dry powder mixer 8. To facilitate the collection of raw materials, the reagent raw materials from the 6 small bins enter one of the aggregate hoppers 7, and the solid waste raw materials from the 4 large bins enter the other aggregate hopper 7.

[0022] The inverted conical feeding hopper 2 is successively connected to the raw material bin 4, the screw feeder 5, the weighing scale 6, the aggregate hopper 7, the dry powder mixer 8, the finished product bin 9, and the bagging machine 10. The screw feeder 5 is located below the discharge port of the raw material bin 4. The weighing scale 6 and the aggregate hopper 7 are successively located below the discharge end of the screw feeder 5. The dry powder mixer 8 is located at the bottom discharge port of the aggregate hopper 7. The finished product bin 9 is located below the discharge end of the dry powder mixer 8.

[0023] The utility model ensures the close cooperation and stable operation among various components. With the equipped control system 11, the entire test process can achieve automatic control, greatly improving the work efficiency. The control system 11 controls the on-off operation of each component through software, facilitating the flexible use of the equipment. Electric valve plates are installed at the bottoms of both the aggregate hopper 7 and the dry powder mixer 8, facilitating the opening and closing of the bottom discharge.

[0024] In summary, the technical effect of this test device lies in: through the highly integrated equipment design and the convenient raw material management system, it realizes the small-batch and rapid processing and preparation of the new cementitious material for the comprehensive utilization of ultra-fine flotation phosphorus tailings, providing strong technical support for the research and application of the cementitious material.

[0025] When the production device for preparing the cementitious material from ultra-fine flotation phosphorus tailings of the utility model is in use, first, the inverted conical feeding hopper 2 at the top of the hoist 1 is used to lift the required raw materials above each raw material bin 4. The knife gate 3 at the bottom of the inverted conical feeding hopper 2 is designed to facilitate the lifting and discharging operations of the raw materials. The raw materials are fed into the raw material bin 4. There are a total of 10 such raw material bins, including four large bins (with a volume of 4m 3 ~6m 3 ) and six small bins (with a volume of 2m 3 ~3m 3 ), which are respectively used to store solid waste raw materials and reagent raw materials. This classified storage design not only facilitates the management and access of different raw materials but also ensures the quality and stability of the raw materials during storage.

[0026] When preparing the new cementitious material, the control system 11 controls the raw materials to be quantitatively fed through the screw feeder 5 from the lower part of the discharge port of the raw material bin 4. The raw materials are transported by the screw feeder 5 to the aggregate hopper 7. The aggregate hopper 7 is located below the discharge end of the screw feeder 5 and is equipped with a weighing scale 6 for weighing to ensure the accurate proportioning of the raw materials. Among them, the metering error of the solid waste is controlled within ±1 kg, while the metering error of the reagent raw materials is controlled within ±0.5 kg, ensuring the accuracy of the proportioning.

[0027] The metered solid waste raw materials and reagents are respectively and preliminarily mixed in the aggregate hopper 7 and then fall into the dry powder mixer 8 from the bottom discharge port. The volume of this mixer is designed to be 0.5m 3 ~1.5m 3, suitable for the mixed preparation of new gelling materials. In the dry powder mixer 8, the raw materials are fully mixed and stirred to form a uniform new gelling material.

[0028] Finally, the well-stirred new gelling material falls from the discharge end of the dry powder mixer 8 into the finished product bin 9 and is packaged by the bagging machine 10 for subsequent use or transportation. The entire test process can be automatically controlled through the control system 11, greatly improving the work efficiency and facilitating the flexible use of the equipment.

[0029] Finally, it should be noted that for the control system 11 in this embodiment, etc., the electronic components in the above components are all general standard components or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or obtained through conventional experimental methods. At the idle places of this device, all the above electrical components are respectively connected by wires. The specific connection means should refer to the sequence of operation of each electrical component in the above working principle to complete the electrical connection, which are all well-known technologies in the art.

[0030] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A production device for preparing gelling materials from ultrafine flotation phosphate tailings, characterized in that: The invention is composed of an elevator (1), a raw material bin (4), a screw feeder (5), a weighing scale (6), a collecting hopper (7), a dry powder mixer (8), a finished product bin (9), and a packaging machine (10) assembled from top to bottom through a steel structure (12), and is equipped with a control system (11). The raw material bin (4) is provided with a plurality of them. An inverted cone-shaped lifting hopper (2) is installed on the top of the elevator (1), and a knife gate (3) is provided at the bottom of the inverted cone-shaped lifting hopper (2). The inverted cone-shaped lifting hopper (2) is connected to the raw material bin (4), the screw feeder (5), the weighing scale (6), the collecting hopper (7), the dry powder mixer (8), the finished product bin (9), and the packaging machine (10) in sequence.

2. The production device for preparing gelling materials from ultrafine flotation phosphate tailings according to claim 1 is characterized in that: The steel structure (12) comprises multiple layers of work platforms, and each layer of the work platforms is connected by an escalator (13).

3. The production device for preparing gelling materials from ultrafine flotation phosphate tailings according to claim 2 is characterized in that: The raw material bin (4) is provided with 10 workbenches located on the same layer, of which 4 are large-capacity raw material bins and 6 are small-capacity raw material bins.

4. The production device for preparing gelling materials from ultrafine flotation phosphate tailings according to claim 1 is characterized in that: There are two collecting hoppers (7), and a screw feeder (5) and a weighing scale (6) are provided under each raw material bin (4). The raw materials from the weighing scale (6) enter the corresponding collecting hopper (7) and enter from the feed ports on both sides of the top of the dry powder mixer (8).

5. The production device for preparing gelling materials from ultrafine flotation phosphate tailings according to claim 1, characterized in that: The screw feeder (5) is located at the lower part of the discharge port of the raw material bin (4), the weighing scale (6) and the collecting hopper (7) are located in sequence at the lower part of the discharge end of the screw feeder (5), the dry powder mixer (8) is located at the bottom discharge port of the collecting hopper (7), and the finished product bin (9) is located at the lower part of the discharge end of the dry powder mixer (8).

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