A waste heat recovery device for magnesium sulfate production
By designing the heat storage components and flow guiding components inside the heat storage tank, the problem of direct discharge of waste heat in magnesium sulfate production was solved, realizing efficient storage and reuse of waste heat and improving energy utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LAIZHOU SHOUXI MAGNESIUM CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-26
AI Technical Summary
The waste heat generated during the existing magnesium sulfate production process is directly emitted, resulting in energy waste, and existing waste heat recovery devices cannot effectively store and utilize it.
A waste heat recovery device is designed, comprising a heat storage tank, a heat storage component, a plug-in component, a flow guiding component, and a heat utilization component. The flow guiding component increases the heat retention time, the heat storage component stores the heat, and the heat utilization component removes the heat for reuse.
It improves energy utilization, enables effective storage and reuse of waste heat, and reduces heat waste.
Smart Images
Figure CN224285586U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of energy recovery, and in particular to a waste heat recovery device for magnesium sulfate production. Background Technology
[0002] Magnesium sulfate is an inorganic compound, usually a white crystal or white powder. It has no odor, a salty and bitter taste, is hygroscopic, readily soluble in water, slightly soluble in ethanol and glycerol, and insoluble in acetone. Industrially, magnesium sulfate is commonly prepared by recrystallization, atmospheric leaching, and hot-melt leaching. The production process requires a reaction at a specific temperature, generating a large amount of heat energy, which is directly released into the environment, wasting valuable energy resources. Existing technology publication number CN209188776U proposes a waste heat recovery device for chemical production, including a reaction vessel. A heating shell is fixedly connected to the bottom of the reaction vessel, and two electric heating tubes are installed inside the heating shell. Support rods are installed on both sides of the bottom of the heating shell, and a waste heat recovery pipe is connected to the right side of the heating shell. A fixing rod is fixedly connected to the outer right end of the waste heat recovery pipe, and a connecting top frame is fixedly connected to the top of the fixing rod. However, its application is limited; it cannot store heat, resulting in poor practicality. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a waste heat recovery device for magnesium sulfate production that can store heat for subsequent use and improve energy efficiency.
[0004] This utility model discloses a waste heat recovery device for magnesium sulfate production, comprising a heat storage tank, a heat storage component, a plug-in component, a heat utilization component, and a flow guiding component. The heat storage component is installed inside the heat storage tank, the plug-in component is installed on the top of the heat storage tank, the heat utilization component can export and utilize the heat in the heat storage component, and the flow guiding component is installed inside the heat storage tank. Waste heat is stored in the heat storage tank, and the flow guiding component can increase the heat retention time inside the heat storage tank, allowing the heat storage component to store the heat for subsequent use. The heat utilization component can export and utilize the heat in the heat storage component, improving practicality.
[0005] Preferably, the heat storage component includes an inner cylinder and an outer cylinder of heat storage material. The inner and outer cylinders are installed in the middle of the heat storage tank, and the outer cylinder is located outside the inner cylinder. The interior of the inner cylinder is a first heating chamber, the space between the heat storage tank and the outer cylinder is a second heating chamber, and the space between the inner and outer cylinders is a heat utilization chamber. Waste heat enters the first and second heating chambers, transferring heat to the inner and outer cylinders, which store the heat and improve energy utilization.
[0006] Preferably, the insert assembly includes a sealing ring, a sealing ring, a sealing top plate, and a fixed top plate. The sealing ring is installed at the bottom of the inner end of the heat storage tank. A sealing ring is installed at the bottom of the outer cylinder of the heat storage material. The sealing ring is inserted into the sealing ring. An insert opening is provided at the top of the heat storage tank. A sealing top plate is installed at the top of the outer cylinder of the heat storage material. A fixed top plate is installed at the top of the sealing top plate. The fixed top plate is installed at the top of the heat storage tank by bolts. By unscrewing the fixing bolts and removing the fixed top plate from the top of the heat storage tank, the inner cylinder and outer cylinder of the heat storage material can be removed from the heat storage tank for easy cleaning and replacement, thus improving practicality.
[0007] Preferably, it further includes a heat-conducting pipe, a valve, a discharge pipe, a main drain pipe, a heat-conducting branch pipe, a second valve, an extension pipe, and a second discharge pipe. The output end of the heat-conducting pipe is connected to the first heating chamber at the bottom of the inner cylinder of the heat storage material. A valve is installed on the heat-conducting pipe. The discharge pipe is installed at the top of the first heating chamber. The output end of the discharge pipe is connected to the main drain pipe through a connecting flange. A heat-conducting branch pipe is connected to the heat-conducting pipe. The output end of the heat-conducting branch pipe is connected to the second heating chamber. A second valve is installed on the heat-conducting branch pipe. A second discharge pipe is connected to the upper part of the second heating chamber. The output end of the second discharge pipe is connected to an extension pipe through a connecting flange. The extension pipe is fixedly connected to the main drain pipe. Waste heat is transported through the heat-conducting pipe. Opening the valve and the second valve allows heat to enter the first and second heating chambers respectively, allowing the inner and outer cylinders of the heat storage material to absorb the heat. Then, the heat is discharged from the first and second heating chambers through the discharge pipe and the second discharge pipe, and then centrally discharged through the main drain pipe.
[0008] Preferably, the flow guiding assembly includes a vertical rod, an inner circulation flow vane, and an outer circulation spiral flow vane. The vertical rod is installed in the middle of the first heating chamber, and the inner circulation flow vane is installed on the outer wall of the vertical rod, which is in sealed contact with the inner wall of the heat storage material cylinder. The outer circulation spiral flow vane is installed on the inner wall of the heat storage tank and is in sealed contact with the outer wall of the heat storage material cylinder. After the heat enters the first and second heating chambers, the heat is guided by the vertical rod and the outer circulation spiral flow vane, which increases the heat flow and residence time inside the heat storage tank and improves the utilization rate.
[0009] Preferably, the heat-using component includes an inlet pipe, a control valve, a hot liquid pipe, and an outlet pipe. The output end of the inlet pipe is connected to the bottom of the heat-using chamber, and a control valve is installed on the inlet pipe. A hot liquid pipe is connected to the upper part of the heat-using chamber, and the output end of the hot liquid pipe is connected to the outlet pipe through a connecting flange. When the control valve is opened, the low-temperature heat-using liquid is input into the heat-using chamber through the inlet pipe. The heat is introduced into the heat-using chamber through the inner cylinder and outer cylinder of the heat storage material. The heated liquid is discharged through the hot liquid pipe and the outlet pipe, thus reusing the heat and improving the utilization rate.
[0010] Preferably, it also includes an insulation sleeve, an insulation layer, a support, and multiple fixing plates. The insulation sleeve is installed on the outer wall of the heat storage tank, and an insulation layer is installed inside the insulation sleeve. The support is installed at the bottom of the heat storage tank, and multiple fixing plates are evenly installed on the outer wall of the bottom of the support. The support supports the bottom of the heat storage tank, and the fixing plates can fix the equipment to ensure stability during use. The insulation sleeve and insulation layer can keep the inside of the heat storage tank warm, reduce heat waste, and improve practicality.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: waste heat is stored in the heat storage tank, and the heat retention time inside the heat storage tank can be increased through the flow guiding component, so that the heat storage component can store the heat for subsequent use. The heat utilization component can export and utilize the heat in the heat storage component, thereby improving practicality. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the isometric structure of this utility model;
[0014] Figure 3 This is a front view structural diagram of the present invention;
[0015] Figure 4 This is a front cross-sectional structural diagram of the present invention;
[0016] Figure 5 This is a schematic diagram of the internal structure of this utility model;
[0017] The following are labels in the attached diagram: 1. Heat storage tank; 2. Inner cylinder of heat storage material; 3. Outer cylinder of heat storage material; 4. Sealing ring; 5. Sealing ring; 6. Sealing top plate; 7. Fixed top plate; 8. Heat conduction pipe; 9. Valve; 10. Discharge pipe; 11. Connecting flange; 12. Main pipe; 13. Heat conduction branch pipe; 14. Second valve; 15. Extension pipe; 16. Second discharge pipe; 17. Vertical rod; 18. Internal circulation flow vane; 19. External circulation spiral flow vane; 20. Liquid inlet pipe; 21. Control valve; 22. Hot liquid pipe; 23. Heat outlet pipe; 24. Insulation jacket; 25. Insulation layer; 26. Support; 27. Fixing plate. Detailed Implementation
[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0019] like Figures 1 to 5As shown, the inner cylinder 2 and outer cylinder 3 of the heat storage material are installed in the middle of the heat storage tank 1, and the outer cylinder 3 is located outside the inner cylinder 2. The inside of the inner cylinder 2 is the first heating chamber, the space between the heat storage tank 1 and the outer cylinder 3 is the second heating chamber, and the space between the inner cylinder 2 and the outer cylinder 3 is the heat utilization chamber. A sealing ring 4 is installed at the bottom inside the heat storage tank 1, and a sealing ring 5 is installed at the bottom of the outer cylinder 3. The sealing ring 5 is inserted into the sealing ring 4. An insert is provided at the top of the heat storage tank 1. An opening is formed, and a sealing top plate 6 is installed on the top of the outer cylinder 3 of the heat storage material. A fixed top plate 7 is installed on the top of the sealing top plate 6. The fixed top plate 7 is bolted and sealed to the top of the heat storage tank 1. The output end of the heat conduction pipe 8 is connected to the first heating chamber at the bottom of the inner cylinder 2 of the heat storage material. A valve 9 is installed on the heat conduction pipe 8. A discharge pipe 10 is installed on the top of the first heating chamber. The output end of the discharge pipe 10 is connected to a main discharge pipe 12 through a connecting flange 11. A heat conduction branch pipe 13 is connected to the heat conduction pipe 8. The output end of the heat conduction branch pipe 13 is connected to the second... The heating chamber is connected, and a second valve 14 is installed on the heat-conducting branch pipe 13. A second discharge pipe 16 is connected to the upper part of the second heating chamber. The output end of the second discharge pipe 16 is connected to an extension pipe 15 through a connecting flange 11. The extension pipe 15 is fixedly connected to the main discharge pipe 12. A vertical rod 17 is installed in the middle of the first heating chamber. An inner circulation flow vane 18 is installed on the outer wall of the vertical rod 17. The inner circulation flow vane 18 is in sealed contact with the inner wall of the heat storage material inner cylinder 2. An outer circulation spiral flow vane 19 is installed on the inner wall of the heat storage tank 1, and the outer... The circulating spiral flow vane 19 is in sealed contact with the outer wall of the heat storage material outer cylinder 3. The output end of the liquid inlet pipe 20 is connected to the bottom of the heat-using chamber. A control valve 21 is installed on the liquid inlet pipe 20. A hot liquid pipe 22 is connected to the upper part of the heat-using chamber. The output end of the hot liquid pipe 22 is connected to the heat outlet pipe 23 through the connecting flange 11. An insulation sleeve 24 is installed on the outer wall of the heat storage tank 1. An insulation layer 25 is installed inside the insulation sleeve 24. A support 26 is installed at the bottom of the heat storage tank 1. Multiple fixing plates 27 are evenly installed on the outer wall of the bottom of the support 26.
[0020] The bottom of the heat storage tank 1 is supported by the support 26, and the equipment is fixed by the fixing plate 27 to ensure stability during use. The heat insulation sleeve 24 and the heat insulation layer 25 can keep the inside of the heat storage tank 1 warm, reduce heat waste, and improve practicality. Waste heat is transferred through the heat conduction pipe 8. Opening the valve 9 and the second valve 14 allows heat to enter the first and second heating chambers respectively, so that the inner cylinder 2 and the outer cylinder 3 of the heat storage material absorb the heat. Then, the heat is discharged from the first and second heating chambers through the discharge pipe 10 and the second discharge pipe 16, and then centrally discharged through the main discharge pipe 12. The inner cylinder 2 and the outer cylinder 3 of the heat storage material store heat, which improves the energy utilization rate. Unscrew the fixing bolts to remove the fixing top plate 7 from the top of the heat storage tank 1. This allows the inner cylinder 2 and outer cylinder 3 of the heat storage material to be removed from the heat storage tank 1 for easy cleaning and replacement, improving practicality. After the heat enters the first and second heating chambers, it is guided by the vertical rod 17 and the external circulation spiral flow blade 19, increasing the heat flow and residence time inside the heat storage tank 1 and improving utilization. Open the control valve 21 to input the low-temperature heat-using liquid into the heat-using chamber through the liquid inlet pipe 20. The heat is introduced into the heat-using chamber through the inner cylinder 2 and outer cylinder 3 of the heat storage material. The heated liquid is discharged through the hot liquid pipe 22 and the heat outlet pipe 23, allowing the heat to be reused and improving the utilization rate.
[0021] like Figures 1 to 5 As shown, this utility model discloses a waste heat recovery device for magnesium sulfate production. During operation, the bottom of the heat storage tank 1 is supported by a support 26, and the equipment is fixed by a fixing plate 27. Waste heat is transported through a heat pipe 8. Opening valves 9 and 14 allows heat to enter the first and second heating chambers respectively, where the inner and outer heat storage material cylinders 2 and 3 absorb the heat. After entering the first and second heating chambers, the heat is guided by a vertical rod 17 and an external circulating spiral flow vane 19, increasing the heat's residence time inside the heat storage tank 1. The heat is then discharged through a discharge pipe 10 and a second discharge pipe 16. The heat is discharged centrally through the main drain pipe 12. The inner cylinder 2 and outer cylinder 3 of the heat storage material store heat. The low-temperature heat-using liquid is introduced into the heat-using chamber through the inlet pipe 20 by opening the control valve 21. The heat is introduced into the heat-using chamber through the inner cylinder 2 and outer cylinder 3 of the heat storage material. The heated liquid is discharged through the hot liquid pipe 22 and the heat outlet pipe 23, and the heat is reused. The insulation jacket 24 and the insulation layer 25 can keep the inside of the heat storage tank 1 warm and reduce heat waste. The fixing bolts are unscrewed and the fixing top plate 7 is removed from the top of the heat storage tank 1. The inner cylinder 2 and outer cylinder 3 of the heat storage material can be taken out of the heat storage tank 1 for easy cleaning and replacement.
[0022] The heat storage material inner cylinder 2, heat storage material outer cylinder 3, valve 9, second valve 14 and control valve 21 of the waste heat recovery device for magnesium sulfate production of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A waste heat recovery device for magnesium sulfate production, characterized in that, It includes a heat storage tank (1), a heat storage component, a plug-in component, a heat utilization component, and a flow guiding component. The heat storage tank (1) is equipped with a heat storage component, the plug-in component is installed on the top of the heat storage tank (1), the heat utilization component can export and utilize the heat in the heat storage component, and the flow guiding component is installed inside the heat storage tank (1).
2. The waste heat recovery device for magnesium sulfate production according to claim 1, characterized by, The heat storage component includes an inner cylinder (2) of heat storage material and an outer cylinder (3) of heat storage material. The inner cylinder (2) and the outer cylinder (3) of heat storage material are installed in the middle of the heat storage tank (1). The outer cylinder (3) of heat storage material is located outside the inner cylinder (2) of heat storage material. The inside of the inner cylinder (2) of heat storage material is the first heating chamber. The space between the heat storage tank (1) and the outer cylinder (3) of heat storage material is the second heating chamber. The space between the inner cylinder (2) and the outer cylinder (3) of heat storage material is the heat utilization chamber.
3. The waste heat recovery device for magnesium sulfate production according to claim 2, characterized by, The insert assembly includes a sealing ring (4), a sealing ring (5), a sealing top plate (6), and a fixed top plate (7). The sealing ring (4) is installed at the bottom inside the heat storage tank (1). The sealing ring (5) is installed at the bottom of the outer cylinder (3) of the heat storage material. The sealing ring (5) is inserted into the sealing ring (4). The top of the heat storage tank (1) has an insert opening. The top of the outer cylinder (3) of the heat storage material is installed with a sealing top plate (6). The top of the sealing top plate (6) is installed with a fixed top plate (7). The fixed top plate (7) is installed on the top of the heat storage tank (1) by bolt sealing.
4. The waste heat recovery device for magnesium sulfate production according to claim 2, characterized by, It also includes a heat-conducting pipe (8), a valve (9), a discharge pipe (10), a main drain pipe (12), a heat-conducting branch pipe (13), a second valve (14), an extension pipe (15), and a second discharge pipe (16). The output end of the heat-conducting pipe (8) is connected to the first heating chamber at the bottom of the inner cylinder (2) of the heat storage material. A valve (9) is installed on the heat-conducting pipe (8). The discharge pipe (10) is installed on the top of the first heating chamber. The output end of the discharge pipe (10) is connected to the main drain pipe (12) through a connecting flange (11). A heat-conducting branch pipe (13) is connected to the heat-conducting pipe (8). The output end of the heat-conducting branch pipe (13) is connected to the second heating chamber. A second valve (14) is installed on the heat-conducting branch pipe (13). The second discharge pipe (16) is connected to the upper part of the second heating chamber. The output end of the second discharge pipe (16) is connected to the extension pipe (15) through a connecting flange (11). The extension pipe (15) is fixedly connected to the main drain pipe (12).
5. The waste heat recovery device for magnesium sulfate production according to claim 2, wherein The flow guiding assembly includes a vertical rod (17), an inner circulation flow vane (18), and an outer circulation spiral flow vane (19). The vertical rod (17) is installed in the middle of the first heating chamber. The inner circulation flow vane (18) is installed on the outer wall of the vertical rod (17). The inner circulation flow vane (18) is in sealed contact with the inner wall of the inner cylinder (2) of the heat storage material. The outer circulation spiral flow vane (19) is installed on the inner wall of the heat storage tank (1) and is in sealed contact with the outer wall of the outer cylinder (3) of the heat storage material.
6. The waste heat recovery device for magnesium sulfate production according to claim 2, wherein The heating assembly includes an inlet pipe (20), a control valve (21), a hot liquid pipe (22), and an outlet pipe (23). The output end of the inlet pipe (20) is connected to the bottom of the heating chamber. The control valve (21) is installed on the inlet pipe (20). The hot liquid pipe (22) is connected to the upper part of the heating chamber. The output end of the hot liquid pipe (22) is connected to the outlet pipe (23) through a connecting flange (11).
7. The waste heat recovery device for magnesium sulfate production according to claim 1, characterized by, It also includes an insulation sleeve (24), an insulation layer (25), a support (26) and multiple fixing plates (27). The insulation sleeve (24) is installed on the outer wall of the heat storage tank (1). The insulation layer (25) is installed inside the insulation sleeve (24). The support (26) is installed at the bottom of the heat storage tank (1). Multiple fixing plates (27) are evenly installed on the outer wall of the bottom of the support (26).