Automatic plugging device for waste salt port of molten salt grate

Abstract

The utility model relates to the field of molten salt furnace, especially to a molten salt furnace salt discharge automatic plugging device, including the sealing salt head of installation on the molten salt furnace body, still including fixed recess and protective cover, the horn shape salt discharge opening of the through sealing salt head is set up in the top of sealing salt head, the bottom of horn shape salt discharge opening is connected with the setting in the molten salt furnace inner salt discharge pipeline, the fixed recess of setting in the outside of horn shape salt discharge opening is set up in the top of horn shape salt discharge opening, the plug of matching with horn shape salt discharge opening is inserted in horn shape salt discharge opening, the piston axle is installed in the top of plug, the protective cover of setting in the outside of plug is inserted in the fixed recess, the protective cover is fixedly connected in the outside of piston axle, the utility model discloses through setting up fixed recess on the sealing salt head, and the protective cover of inserting fixed in the outside of plug in the fixed recess, once the gap of the plug of horn shape salt discharge opening appearance deformation causes and cannot match appears when, the protective cover can avoid high temperature molten salt splash.

Description

Technical Field

[0001] This utility model belongs to the field of molten salt furnace waste discharge, specifically relating to an automatic sealing device for the waste salt outlet of a molten salt furnace. Background Technology

[0002] Titanium tetrachloride is needed in the production of sponge titanium and titanium dioxide. The production of titanium tetroxide often requires molten salt chlorination technology. During the chlorination reaction, the gaseous products generated enter the dust collector, while the liquid and other solid impurities remain in the molten salt and are eventually discharged with the waste salt. In order to maintain a constant molten salt level and control the proportion of insoluble media in the molten salt, and to accelerate the material reaction rate, it is necessary to continuously add furnace charge to replenish the molten salt and periodically discharge the waste salt.

[0003] Currently, after the waste salt is discharged, it needs to be manually sealed by holding an iron rod with a conical metal plug welded to the front end. This sealing device is too simple in structure, simply matching the funnel-shaped salt discharge port. However, once the funnel-shaped salt discharge port is washed by high-temperature molten salt for a long time, it will become an irregular conical circle. At this time, it will not be able to fully match the current sealing device, making sealing very difficult and easily causing high-temperature molten salt to splash out and burn the operators and cause production to stop.

[0004] Therefore, in view of the problem that the existing sealing device structure is too simple and cannot be fully matched once the funnel-shaped salt discharge port is deformed due to long-term high temperature, an automatic sealing device for the waste salt discharge port of molten salt furnace can be designed. Utility Model Content

[0005] To overcome the problem that the existing sealing device has an overly simple structure and cannot be fully matched once the horn-shaped salt outlet deforms due to long-term high temperature.

[0006] The technical solution of this utility model is as follows: an automatic sealing device for the waste salt outlet of a molten salt furnace, including a sealing salt outlet head installed on the molten salt furnace body; it also includes a fixing groove and a protective cover. The top of the sealing salt outlet head is provided with a funnel-shaped salt outlet that penetrates the sealing salt outlet head. The bottom end of the funnel-shaped salt outlet is connected to a salt outlet pipe installed inside the molten salt furnace. The top of the funnel-shaped salt outlet is provided with a fixing groove located on the outside of the funnel-shaped salt outlet. A plug that matches the funnel-shaped salt outlet is inserted into the funnel-shaped salt outlet. A piston shaft is installed on the top of the plug. A protective cover located on the outside of the plug is inserted into the fixing groove. The protective cover is fixedly connected to the outside of the piston shaft.

[0007] Preferably, the piston shaft drives the plug to move and insert it into the funnel-shaped salt discharge port to form a seal. The protective cover is inserted into the fixed groove to form a second layer of sealing protection, preventing high-temperature molten salt from splashing out from the gap between the plug and the funnel-shaped salt discharge port after deformation.

[0008] Preferably, a cylinder is movably connected to the top of the piston shaft, and a solenoid valve is installed on the top of the cylinder. The cylinder is used to control the extension and retraction of the piston shaft.

[0009] Preferably, the top of the plug has a mounting groove, and the bottom of the piston shaft is fixedly connected to a mounting ring set in the mounting groove, with an anchoring hole penetrating the mounting ring inside the mounting ring.

[0010] Preferably, a high-temperature resistant seal is bonded to the inside of the protective cover and sleeved on the outside of the piston shaft, with the inner side of the high-temperature resistant seal embedded in the inner wall of the fixing groove.

[0011] Preferably, a support ring is fitted onto the outer side of the cylinder, and a fixing ring is provided on the right side of the support ring, which is in close contact with the support ring. Mounting plates are fixedly connected to the front and rear sides of the support ring and the fixing ring.

[0012] Preferably, a connecting rod is fixedly connected to the left side of the support ring, and a rotating shaft is fixedly connected to the front and rear sides of the connecting rod, with a support frame sleeved on the outside of the rotating shaft.

[0013] Preferably, a mounting base is fixedly connected to the bottom of the support frame, and a rotary motor is installed on the front side of the support frame. The output end of the rotary motor is fixedly connected to the rotating shaft on the rear side, and the rotary motor is used to drive the rotating shaft to rotate.

[0014] The beneficial effects of this utility model are:

[0015] 1. By opening a fixing groove on the sealed salt discharge head and inserting a protective cover fixed to the outside of the plug in the fixing groove, the protective cover can prevent high-temperature molten salt from splashing out and protect the staff and surrounding equipment if the horn-shaped salt discharge port deforms and the plug cannot match it and gaps appear.

[0016] 2. The sealing salt discharge head is made of inorganic ceramic material that does not shrink during sintering. After hot pressing, this inorganic ceramic material has properties such as high strength, low density, and high temperature resistance. Its decomposition temperature in air is 1800℃, and it has a low coefficient of thermal expansion and high thermal conductivity. Therefore, it has excellent resistance to thermal shock and erosion. After hot pressing and sintering, it will not crack when heated to 1000℃ and then immersed in cold water. It has high strength and impact resistance. After processing, the precision and surface smoothness of the material are very high. When used in the waste salt discharge port, it can fit perfectly with the plug, extending the service life of the sealing salt discharge head.

[0017] 3. The solenoid valve drives the cylinder to extend and retract the piston shaft to move the plug, replacing manual sealing of the funnel-shaped salt discharge port. This realizes remote control automatic sealing to achieve automatic waste salt discharge, reducing the labor intensity of workers and completely avoiding personal injury caused by high-temperature molten salt splashing.

[0018] 4. The cylinder rotates through a support ring that is movably connected to the support frame. The angle of the cylinder can be changed according to the different opening positions of the salt discharge port. At the same time, the support frame can be installed on the ground or a flat surface, which facilitates the installation of the cylinder and improves its versatility and stability. Attached Figure Description

[0019] Figure 1 The diagram shown is a three-dimensional structural representation of the internal structure of the sealed salt discharge head of this utility model.

[0020] Figure 2 The diagram shown is an isometric three-dimensional schematic diagram of the automatic sealing device of this utility model;

[0021] Figure 3 The diagram shown is an equiaxial three-dimensional structural schematic of the sealing salt discharge head of this utility model;

[0022] Figure 4 The diagram shown is an equiaxial three-dimensional structural schematic of the plug of this utility model;

[0023] Figure 5 The diagram shown is a three-dimensional isometric view of the automatic sealing device of this utility model.

[0024] Figure 6 The diagram shown is a schematic representation of the equiaxial three-dimensional structure of the support ring of this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. Sealed salt discharge head; 2. Fixing groove; 3. Protective cover; 4. Horn-shaped salt discharge port; 5. Salt discharge pipe; 6. Plug; 7. Piston shaft; 8. Cylinder; 9. Solenoid valve; 10. Mounting groove; 11. Mounting ring; 12. High-temperature resistant seal; 13. Support ring; 14. Fixing ring; 15. Mounting plate; 16. Connecting rod; 17. Rotating shaft; 18. Support frame; 19. Mounting base; 20. Rotary motor. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Please see Figures 1-6This utility model provides an embodiment of an automatic sealing device for the waste salt outlet of a molten salt furnace, including a sealing salt outlet head 1 installed on the molten salt furnace body; it also includes a fixing groove 2 and a protective cover 3. The top of the sealing salt outlet head 1 has a funnel-shaped salt outlet 4 that penetrates the sealing salt outlet head 1. The bottom end of the funnel-shaped salt outlet 4 is connected to a salt outlet pipe 5 disposed inside the molten salt furnace. The top of the funnel-shaped salt outlet 4 has a fixing groove 2 disposed on the outside of the funnel-shaped salt outlet 4. A funnel-shaped salt outlet pipe is inserted into the funnel-shaped salt outlet 4. A plug 6 is matched to the opening 4. A piston shaft 7 is installed at the top of the plug 6. A protective cover 3 is inserted into the fixing groove 2 and is located on the outside of the plug 6. The protective cover 3 is fixedly connected to the outside of the piston shaft 7. The piston shaft 7 drives the plug 6 to move and insert it into the funnel-shaped salt discharge port 4 to form a seal. The protective cover 3 inserted into the fixing groove 2 can form a second layer of sealing protection to prevent high-temperature molten salt from splashing out from the gap between the plug 6 and the funnel-shaped salt discharge port 4 after deformation. The top of the piston shaft 7 moves. A cylinder 8 is connected, and a solenoid valve 9 is installed at the top of the cylinder 8. The cylinder 8 controls the extension and retraction of the piston shaft 7. By controlling the opening and closing of the solenoid valve 9, compressed air is controlled to enter the piston cylinder 8, thereby controlling the forward and backward movement of the piston shaft 7. The front end of the piston shaft 7 is connected to a conical plug 6 that seals the salt discharge port. The opening and closing of the waste salt discharge port is achieved by the forward and backward movement of the piston shaft 7. The top of the plug 6 has an installation groove 10, and the bottom end of the piston shaft 7 is fixedly connected to an installation ring 11 that is set in the installation groove 10. An anchoring hole is provided inside the mounting ring 11. The piston shaft 7 and the plug 6 are designed to be separate through the mounting groove 10 and the mounting ring 11. This design allows for the replacement of plugs 6 of different shapes according to the size of the flared salt discharge port 4. A high-temperature resistant seal 12 is bonded to the inside of the protective cover 3 and sleeved on the outside of the piston shaft 7. The high-temperature resistant seal 12 is embedded in the inner wall of the fixing groove 2. The high-temperature resistant seal 12 can seal the gap between the protective cover 3 and the fixing groove 2 to prevent high-temperature molten salt from splashing out.

[0028] Please see Figures 5-6In this embodiment, a support ring 13 is sleeved on the outside of the cylinder 8. A fixing ring 14 is provided on the right side of the support ring 13, which is in close contact with the support ring 13. Mounting plates 15 are fixedly connected to the front and rear sides of the support ring 13 and the fixing ring 14. Anchors pass through the fixing ring 14 and the support ring 13 in sequence to clamp and fix the cylinder 8 from the outside. A connecting rod 16 is fixedly connected to the left side of the support ring 13. A rotating shaft 17 is fixedly connected to the front and rear sides of the connecting rod 16. A support frame 18 is sleeved on the outside of the rotating shaft 17. The support frame 18 rotates, thereby driving the support ring 13, which is fixedly connected to the rotating shaft 17, to rotate. This changes the angle of the cylinder 8, which is fixed in the support ring 13 and the fixed ring 14. The bottom end of the support frame 18 is fixedly connected to the mounting base 19. A rotary motor 20 is installed on the front side of the support frame 18. The output end of the rotary motor 20 is fixedly connected to the rotating shaft 17 on the rear side. The rotary motor 20 is used to drive the rotating shaft 17 to rotate. By passing the anchor through the mounting base 19, the support frame 18 can be fixed on the ground or a flat surface.

[0029] During installation, first insert the sealing salt discharge head 1 into the slot opened on the molten salt furnace, so that the salt discharge pipe 5 is inserted into the funnel-shaped salt discharge port 4. Then, pass the anchor through the sealing salt discharge head 1 to fix the sealing salt discharge head 1 to the outside of the molten salt furnace. Pass the anchor through the mounting base 19 and fix the support frame 18 on the ground or plane. Place the cylinder 8 in the support ring 13 and cover the other side with the fixing ring 14. Then, pass the anchor through the mounting plate 15, which is fixedly connected to the support ring 13 and the fixing ring 14, to clamp and fix the cylinder 8. Then, select the appropriate size plug 6 according to the shape of the funnel-shaped salt discharge port 4, press the mounting ring 11 tightly against the inner wall of the mounting groove 10, and pass the anchor through the anchor hole opened on the mounting ring 11 to connect the plug 6.

[0030] The rotary motor 20 is started according to the angle of the sealed salt discharge head 1. The rotary motor 20 drives the rotating shaft 17 to rotate, thereby driving the support ring 13 to rotate. After changing the angle of the cylinder 8 fixed in the support ring 13 to a suitable position, the rotary motor 20 is stopped, and the solenoid valve 9 installed at the top of the cylinder 8 is opened. By controlling the opening and closing of the solenoid valve 9, compressed air is controlled to enter the piston cylinder 8, thereby controlling the advance and retreat of the piston shaft 7. The front end of the piston shaft 7 is connected to the conical plug 6 that seals the salt discharge port. The opening and sealing of the waste salt discharge port is realized by the advance and retreat of the piston shaft 7. When the plug 6 is inserted into the horn-shaped salt discharge port 4, the protective cover 3 will also be inserted into the fixed groove 2, forming double protection with the internal high-temperature resistant seal 12.

[0031] Through the above steps, a fixing groove 2 is opened on the sealed salt discharge head 1, and a protective cover 3 fixed to the outside of the plug 6 is inserted into the fixing groove 2. Once the horn-shaped salt discharge port 4 deforms and the plug 6 cannot match it, resulting in a gap, the protective cover 3 can prevent high-temperature molten salt from splashing out, thus protecting the staff and surrounding equipment. This solves the problem that the existing sealing device structure is too simple and cannot be fully matched once the horn-shaped salt discharge port 4 deforms due to long-term high temperature.

Claims

1. An automatic sealing device for the waste salt outlet of a molten salt furnace, comprising a sealing salt discharge head (1) installed on the molten salt furnace body; characterized in that: It also includes a fixed groove (2) and a protective cover (3). The top of the sealed salt discharge head (1) is provided with a funnel-shaped salt discharge port (4) that penetrates the sealed salt discharge head (1). The bottom of the funnel-shaped salt discharge port (4) is connected to a salt discharge pipe (5) installed in the molten salt furnace. The top of the funnel-shaped salt discharge port (4) is provided with a fixed groove (2) installed on the outside of the funnel-shaped salt discharge port (4). A plug (6) matching the funnel-shaped salt discharge port (4) is inserted into the funnel-shaped salt discharge port (4). A piston shaft (7) is installed on the top of the plug (6). A protective cover (3) installed on the outside of the plug (6) is inserted into the fixed groove (2). The protective cover (3) is fixedly connected to the outside of the piston shaft (7).

2. The automatic sealing device for the waste salt outlet of the molten salt furnace according to claim 1, characterized in that: A cylinder (8) is movably connected to the top of the piston shaft (7), and a solenoid valve (9) is installed at the top of the cylinder (8). The cylinder (8) is used to control the extension and retraction of the piston shaft (7).

3. The automatic sealing device for the waste salt outlet of the molten salt furnace according to claim 2, characterized in that: The top of the plug (6) is provided with an installation groove (10), and the bottom of the piston shaft (7) is fixedly connected with an installation ring (11) set in the installation groove (10). An anchoring hole through the installation ring (11) is provided in the installation ring (11).

4. The automatic sealing device for the waste salt outlet of the molten salt furnace according to claim 1, characterized in that: The inner side of the protective cover (3) is bonded with a high-temperature resistant seal (12) that is sleeved on the outside of the piston shaft (7), and the inner side of the high-temperature resistant seal (12) is embedded in the inner wall of the fixing groove (2).

5. The automatic sealing device for the waste salt outlet of the molten salt furnace according to claim 2, characterized in that: A support ring (13) is sleeved on the outside of the cylinder (8). A fixing ring (14) is provided on the right side of the support ring (13) and is in close contact with the support ring (13). Mounting plates (15) are fixedly connected to the front and rear sides of the support ring (13) and the fixing ring (14).

6. The automatic sealing device for the waste salt outlet of the molten salt furnace according to claim 5, characterized in that: A connecting rod (16) is fixedly connected to the left side of the support ring (13), and a rotating shaft (17) is fixedly connected to the front and rear sides of the connecting rod (16). A support frame (18) is sleeved on the outside of the rotating shaft (17).

7. The automatic sealing device for the waste salt outlet of the molten salt furnace according to claim 6, characterized in that: The support frame (18) is fixedly connected to the mounting base (19) at the bottom. A rotary motor (20) is installed on the front side of the support frame (18). The output end of the rotary motor (20) is fixedly connected to the rotating shaft (17) on the rear side. The rotary motor (20) is used to drive the rotating shaft (17) to rotate.

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