A system for producing a material for backfilling based on sodium sulfate desulfurization by-products

Abstract

The utility model discloses a kind of backfilling material production systems based on sodium sulfate desulfurization by-product, comprising: cladding bearing shell, small reaction kettle, discharge pipeline and desulfurization product conveying pipeline;The utility model relates to backfilling material production technical field, and the production system is through solid-liquid mixed continuous screening structure, and the sodium sulfate desulfurization by-product solution of preliminary reaction is implemented continuous oscillation filtration, realize the efficient separation of solid phase impurity and liquid phase;Subsequently utilize filtrate catalytic spraying structure and uniformly spray gelling agent in refined solution, promote reagent rapid fusion by atomization mixing technology;Mixed liquid is finally transported to closed storage tank or reaction pool and deposited and depth reaction with standing, the system integrates traditional dispersed filtration, dosing, curing process into continuous production line, both avoid material transfer loss, and ensure each link accurate link by process parameter intelligent matching.

Description

Technical Field

[0001] This utility model relates to the field of backfill material production technology, specifically to a backfill material production system based on sodium sulfate desulfurization byproducts. Background Technology

[0002] Sodium sulfate desulfurization byproducts are industrial waste residues produced by coal-fired power plants, metallurgical plants, and other enterprises after removing sulfur dioxide from flue gas using sodium sulfate solution. These waste residues contain a large amount of sulfates, and open-air dumping of such waste residues can lead to soil salinization and groundwater pollution. The process of converting these waste residues into backfill material faces several bottlenecks: in traditional processes, the waste residues must first be crushed and screened to remove impurities before being mixed with slag, fly ash, and other solid wastes. However, the independent operation of each stage leads to time-consuming material transfer; when adding gelling agents and stirring, poor equipment compatibility often results in fluctuations in slurry fluidity; the lack of coordinated control between the high-pressure equipment and curing process in the molding stage leads to unstable block strength compliance rates. These disconnections significantly reduce overall production efficiency compared to theoretical values. Although this technology achieves the resource utilization of solid waste, the lack of process continuity still restricts its large-scale promotion. It is necessary to overcome efficiency bottlenecks through equipment integration and intelligent control system optimization. While existing technologies may already offer solutions to these problems, this project aims to provide an alternative or replacement technical solution. Utility Model Content

[0003] To achieve the above objectives, this utility model is implemented through the following technical solution: a backfill material production system based on sodium sulfate desulfurization byproducts, comprising: a covered support shell, a small reactor, a discharge pipe, and a desulfurization product conveying pipe, wherein the desulfurization product conveying pipe is installed on the small reactor, the discharge pipe is installed on the covered support shell, the small reactor is installed on the covered support shell, a solid-liquid mixing continuous screening structure is installed inside the covered support shell, and a filtrate catalytic spraying structure is installed on the covered support shell, wherein the solid-liquid mixing continuous screening structure comprises: a first solenoid valve, a first connecting hose, a solid-liquid separation box, an integrated filter plate, a second solenoid valve, several connecting spring columns, several integrated electromagnets, a second connecting hose, a solid presentation box, a closed box cover, and a closing lock.

[0004] The first solenoid valve is installed on the covered support shell and connected to the small reaction vessel. The first connecting hose is connected to the first solenoid valve and to the solid-liquid separation box. The integrated filter plate is installed on the solid-liquid separation box. The second solenoid valve is installed on the solid-liquid separation box and connected to the second connecting hose. A plurality of connecting spring posts are respectively installed on the covered support shell and connected to the solid-liquid separation box. A plurality of integrated electromagnets are respectively installed on a plurality of connecting spring posts. The second connecting hose is connected to the solid presentation box. The solid presentation box is inserted into the covered support shell. The closed box cover is installed on the solid presentation box via a rotating shaft. The closing lock head is installed on the solid presentation box and connected to the closed box cover.

[0005] It should be noted that, as described above, the solid-liquid mixture of sodium sulfate desulfurization byproducts is transported to a small reactor via a desulfurization product conveying pipeline. Simultaneously, a solid catalyst is added to the small reactor. After the reaction is fully completed, the first solenoid valve is opened, and the mixture flows into the solid-liquid separation tank below through the first connecting hose. This then drives multiple integrated electromagnets within multiple connecting spring columns. These corresponding integrated electromagnets generate corresponding magnetic attraction or repulsion forces, causing the multiple connecting spring columns to extend or contract synchronously. This, in turn, causes the solid-liquid separation tank containing the mixed solution to continuously oscillate back and forth. During this process, the liquid flows through the integrated filter plate into the side shell. Inside the internal reaction tank, after the liquid has been completely filtered, the second solenoid valve is opened, and the solid residue will fall into the solid container below through the second connecting hose. When the solid container is full, the lid can be easily opened by simply loosening the locking head, and the remaining residue can be removed from the solid container. This process is repeated. The operation panel on the protective shell can be used to adjust the operating parameters of the entire system, and the observation window on the protective shell allows for easy observation of the preparation of the solution product. The dust cover on the small reactor effectively prevents external dust and impurities from falling into the small reactor and interfering with the reaction.

[0006] Preferably, the filtrate catalytic spraying structure includes: an internal reaction tank, a gelling agent storage chamber, a pressurizing pump, a reagent transmission pipeline, a reagent transfer layer, and several reagent nozzles;

[0007] The gelling agent storage chamber is installed on the covered support shell, the pressure pump is installed on the gelling agent storage chamber, the agent transmission pipeline is connected to the pressure pump and the agent transmission pipeline is connected to the agent transfer layer, the agent transfer layer is installed inside the covered support shell, a plurality of agent nozzles are respectively installed on the agent transfer layer, and the discharge pipeline is connected to the reaction tank inside the shell;

[0008] It should be noted that, as described above, the gelling agent is added to the gelling agent storage silo through the injection port set on the gelling agent storage silo. The pressurization pump is driven to draw the gelling agent in the gelling agent storage silo into the agent transmission pipeline. Then, it is sprayed out from multiple agent nozzles through the agent transfer layer and finally sprayed into the reaction tank inside the shell. After it is fully mixed and reacted with the solution in the reaction tank inside the shell, it is discharged into the collection tank or collection pool through the discharge pipeline.

[0009] Preferably, the gelling agent storage chamber is provided with an injection port;

[0010] Preferably, the cover housing is provided with an operation panel;

[0011] Preferably, the encasing support shell is provided with an observation porthole;

[0012] Preferably, the small reactor is equipped with a dust cover.

[0013] Beneficial effects

[0014] This invention provides a production system for backfill materials based on sodium sulfate desulfurization byproducts. It offers the following advantages compared to existing technologies: This system utilizes a solid-liquid mixing and continuous sieving structure to continuously vibrate and filter the initially reacted sodium sulfate desulfurization byproduct solution, achieving efficient separation of solid impurities from the liquid phase. Subsequently, a catalytic spraying structure is used to uniformly spray a gelling agent into the refined solution, promoting rapid fusion of the agents through atomization mixing technology. Finally, the mixture is transported to a sealed storage tank or reaction pool for static sedimentation and deep reaction. This system integrates traditionally dispersed filtration, dosing, and maturation processes into a continuous production line, avoiding material transfer losses and ensuring precise connection of each stage through intelligent matching of process parameters. This significantly improves overall production efficiency compared to traditional processes while significantly reducing gelling agent consumption and reaction residue generation. Attached Figure Description

[0015] Figure 1 This is a front cross-sectional view of the backfill material production system based on sodium sulfate desulfurization byproducts described in this utility model.

[0016] Figure 2 for Figure 1A magnified view of the letter "A" in the diagram.

[0017] In the diagram: 1. Encasing shell; 2. Small reactor; 3. Discharge pipe; 4. Desulfurization product conveying pipe; 5. First solenoid valve; 6. First connecting hose; 7. Solid-liquid separation chamber; 8. Integrated filter plate; 9. Second solenoid valve; 10. Connecting spring column; 11. Integrated electromagnet; 12. Second connecting hose; 13. Solid presentation box; 14. Sealed lid; 15. Sealing lock; 16. Internal reaction tank; 17. Gelatinizer storage chamber; 18. Pressure pump; 19. Reagent transfer pipe; 20. Reagent transfer layer; 21. Reagent nozzle. Detailed Implementation

[0018] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0020] Example

[0021] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-2As shown, a backfill material production system based on sodium sulfate desulfurization byproducts includes: a covered support shell 1, a small reactor 2, a discharge pipe 3, and a desulfurization product conveying pipe 4. The desulfurization product conveying pipe 4 is installed on the small reactor 2, the discharge pipe 3 is installed on the covered support shell 1, and the small reactor 2 is installed on the covered support shell 1. A solid-liquid mixing continuous screening structure is installed inside the covered support shell 1, and a filtrate catalytic spraying structure is installed on the covered support shell 1. The solid-liquid mixing continuous screening structure includes: a first solenoid valve 5, a first connecting hose 6, a solid-liquid separation box 7, an integrated filter plate 8, and a second... The system includes a solenoid valve 9, several connecting spring posts 10, several integrated electromagnets 11, a second connecting hose 12, a solid presentation box 13, a sealing lid 14, and a sealing lock 15. The first solenoid valve 5 is mounted on the covering support shell 1 and connected to the small reaction vessel 2. The first connecting hose 6 is connected to the first solenoid valve 5 and also to the solid-liquid separation chamber 7. The integrated filter plate 8 is mounted on the solid-liquid separation chamber 7. The second solenoid valve 9 is mounted on the solid-liquid separation chamber 7 and connected to the second connecting hose 12. If... Several connecting spring posts 10 are respectively installed on the covering support shell 1, and several connecting spring posts 10 are respectively connected to the solid-liquid separation box 7. Several integrated electromagnets 11 are respectively installed on several connecting spring posts 10. The second connecting hose 12 is connected to the solid presentation box 13, and the solid presentation box 13 is inserted into the covering support shell 1. The sealing box cover 14 is installed on the solid presentation box 13 through a rotating shaft. The sealing lock head 15 is installed on the solid presentation box 13, and the sealing lock head 15 is connected to the sealing box cover 14; the filtrate catalytic spraying structure The system includes: an internal reaction tank 16, a gelling agent storage chamber 17, a pressurizing pump 18, a chemical transmission pipeline 19, a chemical transfer layer 20, and several chemical nozzles 21. The gelling agent storage chamber 17 is installed on the covering support shell 1, the pressurizing pump 18 is installed on the gelling agent storage chamber 17, the chemical transmission pipeline 19 is connected to the pressurizing pump 18 and the chemical transfer layer 20 is connected to the chemical transfer layer 20, the chemical transfer layer 20 is installed inside the covering support shell 1, several chemical nozzles 21 are respectively installed on the chemical transfer layer 20, and the discharge pipeline 3 is connected to the internal reaction tank 16.

[0022] According to the appendix Figure 1-2The solid-liquid mixture of sodium sulfate desulfurization byproducts is transported to a small reactor 2 via desulfurization product conveying pipe 4. Simultaneously, a solid catalyst is added to the small reactor 2. After the reaction is complete, the first solenoid valve 5 is opened, allowing the mixture to flow into the lower solid-liquid separation tank 7 through the first connecting hose 6. This drives multiple integrated electromagnets 11 within multiple connecting spring columns 10. These integrated electromagnets 11 generate corresponding magnetic attraction or repulsion forces, causing the connecting spring columns 10 to extend or contract synchronously. This causes the solid-liquid separation tank 7, containing the mixed solution, to oscillate continuously. During this process, the liquid flows through the integrated filter plate 8 into the side-mounted internal reaction pool 16. Once the liquid is completely filtered, the second solenoid valve 9 is opened, allowing solid residue to fall into the lower solid presentation box 13 through the second connecting hose 12. When the solid presentation box 13 is full, the locking mechanism is released. The first step 15 allows for easy opening of the sealed box cover 14, and removal of any remaining residue from the solid container 13. This process is repeated. The control panel on the protective shell 1 allows for adjustment of the system's operating parameters, while the observation window on the protective shell 1 facilitates observation of the solution product preparation. The dust cover on the small reactor 2 effectively prevents external dust and impurities from entering the reactor 2 and interfering with the reaction. The gelling agent is added to the gelling agent storage chamber 17 through the injection port. The pressurization pump 18 draws the gelling agent from the storage chamber 17 into the reagent transfer pipeline 19, which then sprays it from multiple reagent nozzles 21 through the reagent transfer layer 20. Finally, the gelling agent is sprayed into the reaction tank 16 inside the shell, where it mixes and reacts fully with the solution. Finally, it is discharged into a collection tank or collection pool through the discharge pipeline 3.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A backfill material production system based on sodium sulfate desulfurization byproducts, comprising: The system comprises a covered support shell, a small reactor, a discharge pipe, and a desulfurization product conveying pipe. The desulfurization product conveying pipe is installed on the small reactor, the discharge pipe is installed on the covered support shell, and the small reactor is installed on the covered support shell. A solid-liquid mixing and continuous screening structure is installed inside the covered support shell, and a filtrate catalytic spraying structure is installed on the covered support shell. The solid-liquid mixing and continuous screening structure includes: a first solenoid valve, a first connecting hose, a solid-liquid separation box, an integrated filter plate, a second solenoid valve, several connecting spring columns, several integrated electromagnets, a second connecting hose, a solid presentation box, a closed box cover, and a closing lock. The first solenoid valve is mounted on the covered support shell and connected to the small reaction vessel. The first connecting hose is connected to the first solenoid valve and to the solid-liquid separation chamber. The integrated filter plate is mounted on the solid-liquid separation chamber. The second solenoid valve is mounted on the solid-liquid separation chamber and connected to the second connecting hose. A plurality of connecting spring posts are respectively mounted on the covered support shell and connected to the solid-liquid separation chamber. A plurality of integrated electromagnets are respectively mounted on a plurality of connecting spring posts. The second connecting hose is connected to the solid presentation box. The solid presentation box is inserted into the covered support shell. The sealing cover is mounted on the solid presentation box via a rotating shaft. The sealing lock is mounted on the solid presentation box and connected to the sealing cover.

2. The backfill material production system based on sodium sulfate desulfurization byproducts according to claim 1, characterized in that, The filtrate catalytic spraying structure includes: an internal reaction tank, a gelling agent storage chamber, a pressurizing pump, a reagent transmission pipeline, a reagent transfer layer, and several reagent nozzles; The gelling agent storage chamber is installed on the covered support shell, the pressure pump is installed on the gelling agent storage chamber, the agent transmission pipeline is connected to the pressure pump and the agent transmission pipeline is connected to the agent transfer layer, the agent transfer layer is installed inside the covered support shell, a plurality of agent nozzles are respectively installed on the agent transfer layer, and the discharge pipeline is connected to the reaction tank inside the shell.

3. The backfill material production system based on sodium sulfate desulfurization byproducts according to claim 2, characterized in that, The gelling agent storage chamber is equipped with an injection port.

4. The backfill material production system based on sodium sulfate desulfurization byproducts according to claim 3, characterized in that, An operation panel is provided on the encasing shell.

5. A backfill material production system based on sodium sulfate desulfurization byproducts according to claim 4, characterized in that, The protective shell is equipped with an observation porthole.

6. The backfill material production system based on sodium sulfate desulfurization byproducts according to claim 5, characterized in that, The small reactor is equipped with a dust cover.

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