Digestion tank for tracing calcium carbonate

Abstract

The utility model relates to the field of digestion tanks, and discloses a digestion tank for source tracing of calcium carbonate, which comprises a tank cover, the tank cover is detachably arranged at the top of a tank body, external threads are arranged on the outer wall of the tank body, internal threads are arranged on the inner wall of the tank cover, a sealing element is detachably arranged in the tank cover, and the sealing element is arranged on the inner wall of the tank cover. A sealing part is arranged on the top face of the tank cover, a pressure relief groove is formed in the bottom face of the sealing part, a plurality of first pressure relief holes are formed in the front side and the rear side of the sealing part respectively and communicate with the pressure relief groove, a connecting hole is formed in the top face of the tank cover, and a pressure relief cylinder is fixed in the connecting hole. According to the utility model, through the cooperative use of the external thread, the internal thread, the sealing element, the pressure relief groove, the first pressure relief hole, the connecting hole and the pressure relief cylinder, the function of gradually discharging the internal pressure of the tank body when the tank cover is opened is realized, the instant release of high-pressure gas when the sealing element is directly pulled out is prevented, the potential safety hazards such as scalding are reduced, and the operation safety is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of digestion vessels, specifically a digestion vessel for calcium carbonate traceability. Background Technology

[0002] Precipitated calcium carbonate (light calcium carbonate) is a widely used inorganic salt industrial product, used as a filler in the production of plastics, paper, coatings, and rubber. Some processes for producing industrial calcium carbonate typically use limestone as raw material, which not only consumes high-quality limestone resources but also leads to vegetation destruction and environmental pollution due to mining. In particular, the traditional process of producing industrial calcium carbonate requires high-temperature combustion of fuel to calcine limestone into calcium oxide, resulting in high energy consumption and significant carbon dioxide emissions. When traceability testing of calcium carbonate is required, it is usually treated using a digestion tank.

[0003] According to Chinese Patent No. CN204536099U, a high-pressure sealed digestion vessel includes at least a steel sleeve, a steel sleeve cap threaded onto the upper part of the steel sleeve and connected to the steel sleeve, a hollow inner liner located in the steel sleeve, and an inner liner cap located above the inner liner. The center of the lower surface of the inner liner cap protrudes downward to form a boss, the shape of which matches the shape of the upper part of the inner liner cavity. The end face of the boss is a conical surface with a downward protruding cone angle of 168° to 172°. A wedge-shaped annular groove is formed on the lower surface of the inner liner cap along the bottom of the boss. The top of the inner liner wall is embedded in the wedge-shaped annular groove. The boss is embedded in the upper part of the inner liner cavity, and the shape of the top of the liner wall matches the shape of the wedge-shaped annular groove.

[0004] In the above solution, rotating the steel sleeve cap causes the pressure block to move downward, which in turn presses the inner liner cap to seal the inside of the steel sleeve. This results in the following disadvantage: when the digestion vessel is in use, directly pulling out the inner liner cap will cause the high-pressure gas inside the steel sleeve to be released instantly, which increases the risk of burns and other safety hazards, thereby reducing the safety of operation. Utility Model Content

[0005] The purpose of this invention is to provide a digestion vessel for calcium carbonate tracing, in order to solve the problem that when the inner cap of the digestion vessel is pulled out directly, the high-pressure gas inside the steel sleeve is released instantly, which increases the risk of burns and other safety hazards, thereby reducing the safety of operation.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a digestion vessel for calcium carbonate traceability, comprising a vessel lid, the vessel lid being detachably mounted on the top of the vessel body, the outer wall of the vessel body being provided with external threads, the inner wall of the vessel lid being provided with internal threads, the internal threads being threadedly connected to the external threads, a sealing element being detachably mounted inside the vessel lid, the outer wall of the sealing element contacting the inner wall of the vessel body, a pressure relief groove being provided on the bottom surface of the sealing element, a plurality of first pressure relief holes being provided on the front and rear sides of the sealing element, the plurality of first pressure relief holes being respectively connected to the pressure relief groove, a connecting hole being provided on the top surface of the vessel lid, and a pressure relief cylinder being fixed inside the connecting hole.

[0007] Preferably, the outer wall of the tank has several second pressure relief holes on the front and rear sides respectively.

[0008] Preferably, the inner wall of the can lid is provided with an installation groove, and a sealing ring is fixed to the inner wall of the installation groove. The inner wall of the sealing ring is in contact with the outer wall of the can body.

[0009] Preferably, the top surface of the seal has two threaded grooves, and the top surface of the can lid has two threaded holes. Bolts are threaded into the two threaded holes respectively, and the threaded ends of the two bolts are respectively threaded into the two threaded grooves.

[0010] Preferably, the outer wall of the can lid is fixed with several arc-shaped protrusions.

[0011] Preferably, support plates are fixed to the left and right sides of the outer wall of the tank.

[0012] Compared with existing technologies, a digestion vessel for calcium carbonate traceability that adopts the above technical solution has the following beneficial effects:

[0013] I. During use, after the calcium carbonate powder inside the tank is dissolved by the heating equipment, the tank is removed. Then, the operator rotates the tank lid, utilizing the engagement of the external and internal threads to gradually move the lid upwards. As the lid rises, the seal is pulled out, and several first pressure relief holes gradually open from top to bottom. The pressure inside the tank enters the first pressure relief holes through the pressure relief grooves and flows along these channels into the inside of the tank lid, finally being discharged through the pressure relief cylinder, achieving safe pressure relief. The coordinated use of external and internal threads, seals, pressure relief grooves, first pressure relief holes, connecting holes, and the pressure relief cylinder enables the gradual release of internal pressure when the tank lid is opened, preventing the instantaneous release of high-pressure gas when the seal is directly pulled out, reducing safety hazards such as burns, and improving operational safety.

[0014] II. During use, when the operator rotates and opens the can lid, several second pressure relief holes open one by one from bottom to top as the lid gradually rises. The second pressure relief holes, together with the first pressure relief holes, further accelerate the pressure relief process inside the can, improving pressure relief efficiency. Before opening the can lid, the sealing ring is tightly fitted to the outer wall of the can, effectively sealing the second pressure relief holes. It also works in conjunction with the sealing components to provide a double seal from both the inner and outer walls of the can, ensuring a tight seal during the digestion process.

[0015] Thirdly, during use, the combination of threaded grooves, threaded holes, and bolts facilitates the disassembly and assembly of the seals, making it easy to clean or replace them. When rotating the can lid, the curved convex strip provides a good grip, making it easier and less strenuous to rotate, thus improving the lid's usability. When operating the can body, the support plate provides a stable support point, allowing the operator to hold the can body more firmly and preventing slippage or falls during operation. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of an embodiment.

[0017] Figure 2 This is a breakdown diagram of an embodiment.

[0018] Figure 3 This is a cross-sectional schematic diagram of the can lid and seal in an embodiment.

[0019] Figure 4 For the example Figure 2 Enlarged diagram of point A in the middle.

[0020] In the diagram: 1. Tank lid; 2. Tank body; 3. External thread; 4. Internal thread; 5. Seal; 6. Pressure relief groove; 7. First pressure relief hole; 8. Connection hole; 9. Pressure relief cylinder; 10. Second pressure relief hole; 11. Mounting groove; 12. Sealing ring; 13. Threaded groove; 14. Threaded hole; 15. Bolt; 16. Arc-shaped protrusion; 17. Support plate. Detailed Implementation

[0021] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figures 1-4As shown, a digestion vessel for calcium carbonate traceability includes a lid 1, which is detachably mounted on the top of a vessel body 2. The outer wall of the vessel body 2 is provided with an external thread 3, and the inner wall of the lid 1 is provided with an internal thread 4. The internal thread 4 is threadedly connected to the external thread 3. A sealing element 5 is detachably mounted inside the lid 1. The outer wall of the sealing element 5 is in contact with the inner wall of the vessel body 2. A pressure relief groove 6 is provided on the bottom surface of the sealing element 5. Several first pressure relief holes 7 are provided on the front and rear sides of the sealing element 5, and the several first pressure relief holes 7 are respectively connected to the pressure relief groove 6. A connecting hole 8 is provided on the top surface of the lid 1, and a pressure relief cylinder 9 is fixed inside the connecting hole 8.

[0023] During use, after the calcium carbonate powder inside the canister 2 is dissolved by the heating equipment, the canister 2 is removed. Then, the operator rotates the canister lid 1, utilizing the thread engagement of the external thread 3 and the internal thread 4 to gradually move the lid 1 upwards. As the lid 1 rises, the seal 5 is also pulled out. At this time, several first pressure relief holes 7 gradually open from top to bottom. The pressure inside the canister 2 enters the first pressure relief holes 7 through the pressure relief groove 6 and flows along these channels into the canister lid 1, finally being discharged through the pressure relief cylinder 9, achieving safe pressure relief. Through the coordinated use of the external thread 3, internal thread 4, seal 5, pressure relief groove 6, first pressure relief holes 7, connecting hole 8, and pressure relief cylinder 9, the function of gradually releasing the internal pressure of the canister 2 when opening the canister lid 1 is achieved. This prevents the instantaneous release of high-pressure gas when the seal 5 is directly pulled out, reducing safety hazards such as burns and improving operational safety.

[0024] like Figure 1 and Figure 2 As shown, several second pressure relief holes 10 are respectively opened on the front and rear sides of the outer wall of the tank 2.

[0025] During use, when the operator rotates and opens the can lid 1, as the can lid 1 gradually rises, several second pressure relief holes 10 open one by one from bottom to top. The second pressure relief holes 10 work together with the first pressure relief hole 7 to further accelerate the pressure relief process inside the can body 2 and improve the pressure relief efficiency.

[0026] like Figures 1-4 As shown, the inner wall of the can lid 1 is provided with an installation groove 11, and a sealing ring 12 is fixed on the inner wall of the installation groove 11. The inner wall of the sealing ring 12 is in contact with the outer wall of the can body 2. The top surface of the sealing element 5 is provided with two threaded grooves 13, and the top surface of the can lid 1 is provided with two threaded holes 14. Bolts 15 are threaded into the two threaded holes 14 respectively, and the threaded ends of the two bolts 15 are respectively threaded into the inner threads of the two threaded grooves 13.

[0027] During use, before opening the can lid 1, the sealing ring 12 fits tightly against the outer wall of the can body 2, effectively sealing the second pressure relief hole 10. It also works in conjunction with the sealing element 5 to provide a double seal from both the inner and outer walls of the can body 2, ensuring a tight seal during the digestion process. The use of the threaded groove 13, threaded hole 14, and bolt 15 facilitates the disassembly and assembly of the sealing element 5, making it easy to clean or replace it.

[0028] like Figures 1-4 As shown, the outer wall of the can lid 1 is fixed with several arc-shaped protrusions 16, and the left and right sides of the outer wall of the can body 2 are respectively fixed with support plates 17.

[0029] During use, when the operator needs to rotate the can lid 1, they can hold the curved protrusion 16, which provides a good grip and makes rotating the can lid 1 easier and less strenuous, improving the ease of use of the can lid 1. When the operator needs to hold the can body 2 for operation, they can rely on the support plate 17, which provides a stable support point, allowing the operator to hold the can body 2 more firmly and avoid accidents such as slipping or falling during operation.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A digestion vessel for calcium carbonate traceability, comprising a lid (1) detachably disposed on the top of a vessel body (2), characterized in that, The outer wall of the tank body (2) is provided with an external thread (3), and the inner wall of the tank cover (1) is provided with an internal thread (4). The internal thread (4) is threadedly connected to the external thread (3). The inside of the tank cover (1) is provided with a detachable sealing element (5). The outer wall of the sealing element (5) is in contact with the inner wall of the tank body (2). The bottom surface of the sealing element (5) is provided with a pressure relief groove (6). The front and rear sides of the sealing element (5) are respectively provided with a plurality of first pressure relief holes (7). The plurality of first pressure relief holes (7) are respectively connected to the pressure relief groove (6). The top surface of the tank cover (1) is provided with a connecting hole (8). The inside of the connecting hole (8) is fixed with a pressure relief cylinder (9).

2. The digestion vessel for calcium carbonate traceability according to claim 1, characterized in that: The outer wall of the tank (2) is provided with several second pressure relief holes (10) on the front and rear sides respectively.

3. A digestion vessel for calcium carbonate traceability according to claim 2, characterized in that: The inner wall of the can lid (1) is provided with an installation groove (11), and a sealing ring (12) is fixed on the inner wall of the installation groove (11). The inner wall of the sealing ring (12) is in contact with the outer wall of the can body (2).

4. A digestion vessel for calcium carbonate traceability according to claim 3, characterized in that: The top surface of the sealing element (5) has two threaded grooves (13), and the top surface of the can cover (1) has two threaded holes (14). Bolts (15) are threaded into the two threaded holes (14) respectively, and the threaded ends of the two bolts (15) are threaded into the two threaded grooves (13) respectively.

5. A digestion vessel for calcium carbonate traceability according to claim 1, characterized in that: The outer wall of the can lid (1) is fixed with several arc-shaped protrusions (16).

6. A digestion vessel for calcium carbonate traceability according to claim 5, characterized in that: Support plates (17) are fixed to the left and right sides of the outer wall of the tank (2).

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