A continuous production device of solid waste-based microcrystalline glass

Abstract

The utility model discloses a kind of continuous production device of solid waste base microcrystalline glass, it is related to glass production field, including horizontally parallelly arranged preheating bin, melting bin and clarifying tank, preheating bin, melting bin and clarifying tank outer surface are all provided with electric heating module, preheating bin upper surface is fixedly installed with mixing bin, mixing bin outer surface both sides are all provided with feeding port, mixing bin lower bottom is extended to the inside fixed mounting of preheating bin with conveying pipe, preheating bin one side top is provided with first driving part;By the segmented independent electric heating module design of preheating bin, melting bin, clarifying tank, form gradient temperature control structure, can respectively accurately control the temperature of preheating, melting, clarifying each link, adapt to the melting characteristic of oil shale residue and phosphorous slag, avoid the problem of local overheating or incomplete melting caused by traditional single temperature zone, compared with prior art, improve the melting efficiency and melting fullness of solid waste raw material.

Description

Technical Field

[0001] This utility model relates to glass production technology, specifically to a continuous production apparatus for solid waste-based microcrystalline glass. Background Technology

[0002] Solid waste-based microcrystalline glass is a new type of inorganic non-metallic material made from industrial solid waste such as oil shale slag and phosphorus slag as main raw materials through processes such as pretreatment, mixing, melting, molding, crystallization, and cooling. It forms a dense crystal structure through the crystallization reaction of silicon, aluminum, calcium and other components in solid waste, and has core characteristics such as high hardness and strong corrosion resistance. When this type of microcrystalline glass is used to make acid storage tanks, it can resist the corrosion of various acidic media (such as sulfuric acid, hydrochloric acid, nitric acid, etc.) with its excellent acid resistance. At the same time, the high-strength structure can ensure the stability of the acid storage tank during long-term use, reduce the risk of acid leakage, extend the service life of equipment, and realize the resource utilization of industrial solid waste, which is in line with the development concept of green environmental protection and circular economy.

[0003] In the current process of producing solid waste-based microcrystalline glass using oil shale slag and phosphorus slag as raw materials, the melting process is a key step that determines the product performance. It requires a stable high-temperature field to ensure that the solid waste raw materials are fully melted and the components are uniformly mixed. However, traditional melting devices mostly adopt a single-temperature zone melting pool structure, which is prone to uneven temperature distribution during the heating process. This results in some refractory components in the oil shale slag and phosphorus slag not being completely melted, and the residual solid particles will directly affect the subsequent crystallization effect. Furthermore, the solid waste raw materials tend to accumulate in the melting pool, which not only hinders heat transfer but also causes unmelted impurities to mix with the glass melt, reducing the purity of the glass melt and ultimately affecting the hardness and acid resistance of the microcrystalline glass, making it difficult to meet the stringent material performance requirements of acid storage tanks. Utility Model Content

[0004] The purpose of this invention is to provide a continuous production device for solid waste-based microcrystalline glass, in order to solve the problems in the existing technology of uneven temperature in traditional melting devices leading to incomplete melting of raw materials, easy accumulation of continuous feed, and low purity of glass melt.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a continuous production device for solid waste-based microcrystalline glass, comprising a preheating chamber, a melting chamber, and a clarification tank arranged horizontally in parallel, wherein an electric heating module is provided on the outer surface of the preheating chamber, the melting chamber, and the clarification tank;

[0006] A mixing chamber is fixedly installed on the upper surface of the preheating chamber. Feed ports are provided on both sides of the outer surface of the mixing chamber. A conveying pipe is fixedly installed on the lower bottom surface of the mixing chamber extending into the interior of the preheating chamber. A first driving part is provided on the top of one side of the preheating chamber. A support shaft is installed on the output end of one side of the first driving part extending into the interior of the conveying pipe. A spiral conveying disc is fixedly connected to the outer surface of the support shaft inside the conveying pipe.

[0007] The bottom of the clarification tank is integrally formed with a sludge hopper, and a filter element is provided at the top of the sludge hopper. The upper surface of the filter element has several filter holes. A conveyor frame is installed below the clarification tank at the bottom opening of the sludge hopper.

[0008] Furthermore, a second drive unit is provided at the top center of the mixing chamber, and a connecting rod is installed inside the mixing chamber from the bottom output end of the second drive unit. Several stirring blades are fixedly installed on the outer surface of the connecting rod.

[0009] Furthermore, one side of the conveying pipe extends through the preheating chamber and into the melting chamber, with a through hole. A flow guide bracket is fixedly installed on the top side of the inner wall of the melting chamber near the bottom of the through hole, and the flow guide bracket is inclined downward.

[0010] Furthermore, a flow guide is fixedly installed on the bottom side of one side of the inner wall of the melting chamber, and the flow guide is located near the top of the filter element.

[0011] Furthermore, a square opening is provided on one side of the outer surface of the clarification tank, and a sealing door is rotatably installed on one end of the inner wall of the square opening. A sealing gasket is provided on one side of the inner wall of the sealing door, and the sealing gasket is snapped into the inside of the square opening.

[0012] Furthermore, the volume of the filter element is smaller than the volume of the top of the sludge hopper, the filter element and the top of the sludge hopper are interlocked, and the bottom of the sludge hopper has a conical structure.

[0013] Compared with the prior art, the continuous production apparatus for solid waste-based microcrystalline glass provided by this utility model has the following beneficial effects:

[0014] 1. This utility model uses a segmented independent electric heating module design for the preheating chamber, melting chamber, and clarification tank to form a gradient temperature control structure, which can accurately control the temperature of each stage of preheating, melting, and clarification. It is suitable for the melting characteristics of oil shale slag and phosphorus slag, and avoids the problems of local overheating or incomplete melting caused by traditional single temperature zone. Compared with the existing technology, it improves the melting efficiency and melting fullness of solid waste raw materials.

[0015] 2. This utility model uses a linkage structure between a mixing chamber and a spiral conveyor disc. The mixing chamber enables premixing of raw materials, and the spiral conveyor disc is driven by a first drive unit to achieve quantitative and continuous feeding. In addition, the inclined guide support in the melting chamber guides the raw materials to be evenly dispersed to the bottom of the melting chamber, avoiding the accumulation of raw materials that hinders heat transfer. Compared with the prior art, this improves the stability of continuous production and the utilization rate of raw materials.

[0016] 3. This utility model forms a graded impurity removal structure by using a filter element installed in the clarification tank and an integrally formed conical sludge hopper. The filter element intercepts large unmelted particles of impurities through the filter holes, and the conical sludge hopper collects the settled impurities by gravity. The interlocking design of the filter element and the sludge hopper facilitates disassembly and cleaning. At the same time, the guide port guides the glass melt to the top of the filter element, ensuring that all the glass melt has been filtered and impurities removed. Compared with the prior art, this improves the purity of the glass melt, thereby ensuring the hardness and acid resistance of the microcrystalline glass. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0019] Figure 2 A schematic diagram of the sealing door structure provided in an embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the flow guide support structure provided in an embodiment of the present utility model;

[0021] Figure 4 This is a schematic cross-sectional view of the filter element provided in an embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Preheating chamber; 2. Melting chamber; 3. Clarifying tank; 4. Electric heating module; 5. Mixing chamber; 6. Feeding port; 7. Conveying pipe; 8. First drive unit; 9. Support shaft; 10. Spiral conveyor disc; 11. Flow guide bracket; 12. Flow guide port; 13. Sludge hopper; 14. Filter element; 15. Filter hole; 16. Conveying frame; 17. Sealing door; 18. Second drive unit; 19. Stirring blade. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] As attached Figure 1 To be continued Figure 4 As shown:

[0026] Example 1:

[0027] This utility model provides a continuous production device for solid waste-based microcrystalline glass, including a preheating chamber 1, a melting chamber 2 and a clarification tank 3 arranged horizontally in parallel. The outer surfaces of the preheating chamber 1, the melting chamber 2 and the clarification tank 3 are all provided with electric heating modules 4.

[0028] A mixing chamber 5 is fixedly installed on the upper surface of the preheating chamber 1. A feeding port 6 is provided on both sides of the outer surface of the mixing chamber 5. A conveying pipe 7 is fixedly installed on the bottom surface of the mixing chamber 5 extending into the interior of the preheating chamber 1. A first drive unit 8 is provided on the top of one side of the preheating chamber 1. The first drive unit 8 is a first drive motor. A support shaft 9 is installed on the output end of one side of the first drive unit 8 extending into the interior of the conveying pipe 7. A spiral conveying disc 10 is fixedly connected to the outer surface of the support shaft 9 inside the conveying pipe 7.

[0029] A guide port 12 is fixedly installed on one side of the bottom of the inner wall of the melting chamber 2, and the guide port 12 is located above the filter element 14.

[0030] The bottom of the clarification tank 3 is integrally formed with a sludge hopper 13. A filter element 14 is provided at the top of the sludge hopper 13. The volume of the filter element 14 is smaller than the volume of the top of the sludge hopper 13. The filter element 14 and the top of the sludge hopper 13 are interlocked. The bottom of the sludge hopper 13 is a conical structure. Several filter holes 15 are opened through the upper surface of the filter element 14. A conveying frame 16 is installed below the clarification tank 3 at the bottom opening of the sludge hopper 13.

[0031] A square opening is provided on one side of the outer surface of the clarification tank 3. A sealing door 17 is rotatably installed on one end of the inner wall of the square opening. A sealing gasket is provided on one side of the inner wall of the sealing door 17, and the sealing gasket is snapped into the inside of the square opening.

[0032] Working principle: First, the staff will conduct a comprehensive inspection of the status of each component of the device to confirm that the connection and seal between the preheating chamber 1, the melting chamber 2, and the refining tank 3 are not loose, the insulation layer of the electric heating module 4 is intact, and the wiring connection of the first drive unit 8 and the conveyor frame 16 is normal; then, the sealing door 17 of the refining tank 3 will be closed to ensure that the sealing gasket is fully engaged in the square opening to form a high-temperature sealed environment and prevent heat leakage and glass melt overflow during subsequent heating.

[0033] Then, the staff put the pretreated oil shale slag and phosphorus slag raw materials into the mixing chamber 5 through the feeding ports 6 on both sides of the mixing chamber 5 according to the preset ratio. The raw materials fall naturally into the bottom of the mixing chamber 5. Then, the first drive unit 8 is started. The first drive unit 8 drives the support shaft 9 to rotate at a constant speed. The spiral conveyor disc 10 on the linkage surface of the support shaft 9 rotates synchronously in the conveying pipe 7. The spiral conveyor disc 10 conveys the raw materials quantitatively and continuously downward through the gap fit with the inner wall of the conveying pipe 7, avoiding the accumulation of raw materials in a large amount at one time into the subsequent chamber.

[0034] Next, the staff activated the electric heating modules 4 of the preheating chamber 1, melting chamber 2, and refining tank 3 respectively, setting the temperature of the preheating chamber 1 to 800-900℃, the melting chamber 2 to 1450-1550℃, and the refining tank 3 to 1500-1520℃, forming a gradient temperature control. The raw material in the conveying pipe 7 was gradually preheated in the preheating chamber 1, reducing the energy consumption required for subsequent melting and reducing the temperature fluctuation of the melting chamber 2. The preheated raw material continued to be pushed forward by the spiral conveyor 10 and finally entered the melting chamber 2 through the end of the conveying pipe 7, where it was gradually melted into molten glass in a high-temperature environment.

[0035] Afterwards, the molten glass is allowed to stand in the melting chamber 2 to ensure complete melting. Then, it slowly flows into the clarification tank 3 through the guide port 12 at the bottom of the melting chamber 2. The guide port 12 is aligned with the top of the filter element 14. The molten glass first contacts the filter element 14 and completes the initial filtration through the filter holes 15 on the filter element 14. Large unmelted impurities are intercepted. Fine impurities pass through the filter holes 15 with the molten glass and settle to the bottom of the conical sedimentation hopper 13 under the action of gravity, realizing the complete separation of the molten glass and impurities and ensuring the purity of the molten glass.

[0036] Finally, the clarified pure glass liquid flows to the conveyor frame 16 at the bottom of the clarification tank 3. The staff starts the conveyor frame 16 to continuously transport the glass liquid to the subsequent forming and crystallization stages. After production is completed, the staff first turns off each electric heating module 4 and the first drive unit 8. After the device cools down to room temperature naturally, the staff opens the sealing door 17, takes out the filter element 14 that is locked in the slag hopper 13 to clean the surface impurities, and cleans the internal slag through the bottom opening of the slag hopper 13. After cleaning, the filter element 14 is reset and locked, and the sealing door 17 is closed to prepare for the next production.

[0037] Example 2:

[0038] This embodiment is basically the same as the previous embodiment, except that a second drive unit 18 is provided at the top center of the mixing chamber 5. The second drive unit 18 is a second drive motor. The output end of the bottom surface of the second drive unit 18 extends into the interior of the mixing chamber 5 and is equipped with a connecting rod. Several stirring blades 19 are fixedly installed on the outer surface of the connecting rod.

[0039] Working principle: First, after the staff completes the device sealing check and closes the sealing door 17 according to the steps of Example 1, the oil shale slag and phosphorus slag raw materials are added through the feeding ports 6 on both sides of the mixing chamber 5 in a preset ratio; after the raw materials are added, the second drive unit 18 is started. The second drive unit 18 drives the connecting rod and the stirring blades 19 on the surface to rotate at high speed. The stirring blades 19 form a rotating airflow in the mixing chamber 5, which fully mixes the two solid waste raw materials with different densities and properties, and avoids the subsequent melting effect due to the stratification of raw materials or the segregation of local components.

[0040] Next, the staff kept the second drive unit 18 running continuously while starting the first drive unit 8. The spiral conveyor plate 10 quantitatively and continuously conveyed the uniformly mixed raw material to the conveying pipe 7. The continuous rotation of the stirring blade 19 can prevent the raw material from accumulating and clumping at the bottom of the mixing chamber 5, ensuring smooth material feeding and avoiding blockage of the conveying pipe 7. Subsequently, each electric heating module 4 is started. The process of preheating the raw material in the preheating chamber 1 and melting it in the melting chamber 2 is the same as in Example 1. The uniformly mixed raw material can absorb heat more quickly and evenly, avoiding local differences in melting speed caused by uneven composition, and improving melting efficiency and glass melt composition consistency.

[0041] Then, the molten glass flows into the clarification tank 3 through the guide port 12, and is clarified and impurities removed through the filter element 14 and the slag hopper 13. The pure glass liquid is transported to the subsequent stage by the conveyor frame 16. This process is the same as in Example 1. The uniform composition of the glass liquid can lay the foundation for the subsequent crystallization stage, ensure the uniformity of the microcrystalline glass crystal structure, and thus improve the hardness and acid resistance stability of the finished product.

[0042] Finally, after production is completed, the staff first shuts down the second drive unit 18, then shuts down other equipment according to the procedure in Example 1 and waits for the device to cool down; after cooling down, the maintenance cover of the mixing chamber 5 is opened, and the residual raw materials on the inner wall are cleaned to prevent the residual raw materials from getting damp and clumping, which would affect the next mixing effect. After cleaning, the maintenance cover is closed, and the maintenance of the entire set of equipment is completed.

[0043] Example 3:

[0044] This embodiment is basically the same as the previous embodiment, except that the conveying pipe 7 extends through the preheating chamber 1 to the inside of the melting chamber 2 and has a through hole. A flow guide bracket 11 is fixedly installed on the top of one side of the inner wall of the melting chamber 2 near the bottom of the through hole. The flow guide bracket 11 is inclined downward.

[0045] Working principle: First, after the staff completes the raw material input and mixing according to the steps of Example 2, the first drive unit 8 and each electric heating module 4 are started; the spiral conveyor 10 conveys the evenly mixed raw material to the end of the conveying pipe 7, and the raw material is discharged through the through hole inside the melting chamber 2 through the conveying pipe 7 and falls directly onto the guide support 11 on the inner wall of the melting chamber 2.

[0046] Next, the guide bracket 11 is set at an angle downwards. After the raw material falls on the bracket, it slides evenly along the surface of the bracket to the bottom of the melting chamber 2, avoiding the raw material from being discharged directly from the through hole and accumulating in a local area of ​​the melting chamber 2. This uniform material distribution method allows the raw material to fully contact the high temperature environment in the melting chamber 2, and the heat transfer is more uniform. It avoids insufficient heating and slow melting of the raw material in the accumulation area, while reducing heat waste in other areas and improving melting efficiency and melting completeness.

[0047] Then, the raw material is fully melted into molten glass in the melting chamber 2, and then flows into the clarification tank 3 through the guide port 12. It is then clarified and impurities are removed by the filter element 14 and the slag hopper 13, and then transported to the subsequent stage by the conveyor frame 16. The process is the same as in Example 2. Because the raw material is melted more fully, the number of unmelted impurities in the molten glass is reduced, the impurity removal pressure of the filter element 14 and the slag hopper 13 is reduced, and the purity of the molten glass is further improved.

[0048] Finally, after production is completed, the staff shut down each piece of equipment according to the procedure in Example 2 and waited for the device to cool down. After cooling, in addition to cleaning the mixing chamber 5, filter element 14 and slag hopper 13, it is also necessary to focus on cleaning the molten slag that may remain on the surface of the guide bracket 11. Use a special tool to gently scrape off the attachments on the surface of the bracket to ensure that the surface of the bracket is smooth and to avoid affecting the guidance and uniform distribution of the raw materials next time. After cleaning, close each chamber door as required to complete the maintenance.

[0049] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A continuous production apparatus for solid waste-based microcrystalline glass, comprising a preheating chamber (1), a melting chamber (2), and a clarification tank arranged horizontally in parallel, characterized in that, The outer surfaces of the preheating chamber (1), melting chamber (2) and clarification tank (3) are all equipped with electric heating modules (4); A mixing chamber (5) is fixedly installed on the upper surface of the preheating chamber (1). A feeding port (6) is provided on both sides of the outer surface of the mixing chamber (5). A conveying pipe (7) is fixedly installed on the bottom surface of the mixing chamber (5) extending into the interior of the preheating chamber (1). A first driving part (8) is provided on the top of one side of the preheating chamber (1). A support shaft (9) is installed on the output end of one side of the first driving part (8) extending into the interior of the conveying pipe (7). A spiral conveying disc (10) is fixedly connected to the outer surface of the support shaft (9) inside the conveying pipe (7). The bottom of the clarification tank (3) is integrally formed with a sludge hopper (13), and a filter element (14) is provided at the top of the sludge hopper (13). Several filter holes (15) are opened through the upper surface of the filter element (14). A conveyor frame (16) is installed below the clarification tank (3) at the bottom opening of the sludge hopper (13).

2. The continuous production apparatus for solid waste-based microcrystalline glass according to claim 1, characterized in that, A second drive unit (18) is provided at the top center of the mixing chamber (5). The output end of the bottom surface of the second drive unit (18) extends into the mixing chamber (5) and a connecting rod is installed thereon. Several stirring blades (19) are fixedly installed on the outer surface of the connecting rod.

3. The continuous production apparatus for solid waste-based microcrystalline glass according to claim 1, characterized in that, The conveying pipe (7) extends through the preheating chamber (1) to the inside of the melting chamber (2) and has a through hole. A flow guide bracket (11) is fixedly installed on the top of one side of the inner wall of the melting chamber (2) near the bottom of the through hole. The flow guide bracket (11) is inclined downward.

4. The continuous production apparatus for solid waste-based microcrystalline glass according to claim 1, characterized in that, A flow guide (12) is fixedly installed on one side of the bottom of the inner wall of the melting chamber (2), and the flow guide (12) is located above the filter element (14).

5. The continuous production apparatus for solid waste-based microcrystalline glass according to claim 1, characterized in that, The clarification tank (3) has a square opening on one side of its outer surface. A sealing door (17) is rotatably installed on one end of the inner wall of the square opening. A sealing gasket is provided on one side of the inner wall of the sealing door (17), and the sealing gasket is snapped into the inside of the square opening.

6. The continuous production apparatus for solid waste-based microcrystalline glass according to claim 1, characterized in that, The volume of the filter element (14) is smaller than the top volume of the sludge hopper (13). The filter element (14) and the top of the sludge hopper (13) are interlocked. The bottom of the sludge hopper (13) has a conical structure.

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