A calcium hydroxide finished product storage tank

Abstract

This invention discloses a calcium hydroxide product storage tank, comprising a tank body, a filter box and a matching cover plate on the tank body, a partition plate inside the filter box, which seals and divides the filter box into a dehumidification chamber and a molecular sieve chamber, the dehumidification chamber containing concentrated sulfuric acid, and the molecular sieve chamber containing granular molecular sieves, the top of the partition plate having an air vent, the cover plate having a first air inlet pipe, one end of the first air inlet pipe passing through the cover plate and extending below the surface of the concentrated sulfuric acid, and the bottom of the molecular sieve chamber having a second air inlet pipe, the second air inlet pipe connecting to the interior of the tank body. This invention achieves the functions of dehumidification and removal of acidic gases, avoiding the problem of calcium hydroxide deterioration during storage in the tank.

Description

Technical Field

[0001] This utility model relates to the field of storage tank technology, and in particular to a calcium hydroxide finished product storage tank. Background Technology

[0002] Calcium hydroxide, commonly known as slaked lime or quicklime, is an important industrial alkali compound. It is hygroscopic and easily reacts with acidic gases such as CO2 in the air, causing it to deteriorate. Therefore, it needs to be stored in a sealed environment.

[0003] Patent CN211002839U discloses a calcium hydroxide storage tank. It uses an external hot air blower, periodically activated, to circulate heated air into the tank, thus drying and dehumidifying the calcium hydroxide. However, this process requires exhausting moisture through the air vent, disrupting the tank's airtight environment. This allows acidic gases like carbon dioxide to enter and react, forming calcium carbonate, rendering the calcium hydroxide unusable and requiring disposal. The challenge lies in achieving airtight, dry storage of calcium hydroxide to prevent deterioration. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a calcium hydroxide finished product storage tank to solve the problems of moisture absorption and deterioration caused by contact with air during the storage process of calcium hydroxide storage tanks in the prior art.

[0005] The objective of this utility model is achieved through the following technical solution: a calcium hydroxide finished product storage tank, comprising a tank body, a filter box and a matching cover plate on the tank body, a partition plate inside the filter box, the partition plate sealingly dividing the filter box into a dehumidification chamber and a molecular sieve chamber, the dehumidification chamber containing concentrated sulfuric acid, the molecular sieve chamber containing granular molecular sieves, an air vent at the top of the partition plate, a first air inlet pipe on the cover plate, one end of the first air inlet pipe passing through the cover plate and extending below the liquid surface of the concentrated sulfuric acid, a second air inlet pipe at the bottom of the molecular sieve chamber, the second air inlet pipe connecting to the interior of the tank body.

[0006] Furthermore, the cover plate is provided with a sealing plate to block the first air intake pipe.

[0007] Furthermore, the tank body is provided with a limiting slide rod, the bottom end of which is vertically fixed to the top surface of the tank body, and a baffle is fixedly provided at the top of the limiting slide rod. The limiting slide rod passes through one side of the sealing plate and is slidably connected to the sealing plate. A spring is sleeved on the limiting slide rod, and the spring is located between the baffle and the sealing plate. A motor is provided below the sealing plate and is fixed to the tank body. The motor is vertically arranged, and a top plate is fixedly provided at the output end of the motor. An arc-shaped first protrusion is provided on the lower surface of the sealing plate, and an arc-shaped second protrusion matching the first protrusion is provided on the upper surface of the top plate.

[0008] Furthermore, the motor is a dual-shaft motor, and a stirring rod is fixedly provided at the other output end of the motor. The stirring rod passes through the tank and extends to the bottom of the tank.

[0009] Furthermore, the filter box and the cover plate are connected by a snap-fit ​​seal.

[0010] This utility model has the following advantages:

[0011] 1. By setting up a concentrated sulfuric acid chamber and a molecular sieve chamber, the air entering the storage tank is dehumidified and acidic gases are removed, thus avoiding the problem of calcium hydroxide deterioration during storage in the storage tank;

[0012] 2. By setting the sealing plate driven by the motor to reciprocate up and down, the function of opening and closing the gas inlet in the storage tank is realized. It is compatible with the screw conveyor, ensuring the smoothness of material feeding during the conveying process and the airtightness during normal storage.

[0013] 3. The overall structure is simple, the concentrated sulfuric acid and molecular sieve are easy to replace, and maintenance is convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.

[0016] In the diagram, 1. Tank body; 2. Feed inlet; 3. Filter box; 4. Divider plate; 5. Cover plate; 6. Air vent; 7. Dehumidification chamber; 8. Molecular sieve chamber; 9. First air inlet pipe; 10. Second air inlet pipe; 11. Motor; 12. Limiting slide bar; 13. Baffle; 14. Sealing plate; 15. Spring; 16. Top plate; 17. First protrusion; 18. Second protrusion; 19. Stirring rod; 20. Screw conveyor. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] like Figure 1 , Figure 2 As shown, a calcium hydroxide finished product storage tank includes a tank body 1. A feed inlet 2 is opened at the top of the tank body 1, through which the finished product is fed into the tank body 1. The lower part of the tank body 1 is conical, serving as the discharge outlet. A screw conveyor 20 is installed at the lower part of the tank body 1. A filter box 3 and a matching cover plate 5 are installed on the tank body 1. The filter box 3 is rectangular, and the cover plate 5 is fastened to the filter box 3. A partition plate 4 is installed on the filter box 3, sealing it into a dehumidification chamber 7 and a molecular sieve chamber 8. Concentrated sulfuric acid is added to half-fill the dehumidification chamber 7, utilizing the concentrated sulfuric acid... The hygroscopic property of acid allows it to absorb moisture from the air. A granular molecular sieve is placed in the molecular sieve chamber 8. The molecular sieve can adsorb acidic gases such as carbon dioxide from the air. The top of the partition plate 4 is provided with multiple air passage holes 6. The height of the air passage holes 6 is greater than the liquid level of concentrated sulfuric acid. The cover plate 5 is provided with a first air inlet pipe 9. The bottom end of the first air inlet pipe 9 passes through the cover plate 5 and extends below the liquid level of concentrated sulfuric acid. The top end of the first air inlet pipe 9 does not exceed the upper surface of the cover plate 5. A second air inlet pipe 10 is installed at the bottom of the molecular sieve chamber 8. The second air inlet pipe 10 is connected to the inside of the tank 1.

[0021] The first air inlet pipe 9 is directly connected to the outside air. Concentrated sulfuric acid is prone to rapid deterioration. A dual-shaft motor 11 is installed on the top of the tank body 1. The output end of the motor 11 is vertically set. A sealing plate 5 and a baffle 13 are installed above the motor 11. The sealing plate 5 extends outward to the top of the sealing plate 14. Multiple symmetrically arranged limiting slide rods 12 are installed around the motor 11. The bottom end of the limiting slide rod 12 is vertically fixed to the top surface of the tank body 1. The top of the limiting slide rod 12 is fixed horizontally with the baffle 13. The limiting slide rod 12 passes through the left side of the sealing plate 14 and is slidably connected to the sealing plate 14. A spring 15 is sleeved on each limiting slide rod 12. 15 is located between baffle 13 and sealing plate 14. Spring 15 presses and pushes sealing plate 14 downward. The lower surface of sealing plate 14 is provided with arc-shaped first protrusion 17, which is hemispherical. The upper surface of top plate 16 is provided with arc-shaped second protrusion 18 that corresponds to and matches the first protrusion 17. The second protrusion 18 is also hemispherical. The upper output end of motor 11 is fixedly connected to top plate 13. The other output end of motor 11 is fixedly provided with stirring rod 19. The end of stirring rod 19 is also provided with multiple stirring horizontal rods. Stirring rod 19 is a round rod structure. Stirring rod 19 passes through tank 1 and extends to the bottom of tank 1.

[0022] The working principle of this utility model is as follows: When the screw conveyor 20 is started to convey material outward, the internal air pressure in the sealed tank 1 is lower than that outside due to the material conveying, which is not conducive to smooth material conveying. Simultaneously, the motor 11 is started. The rotation of the motor 11 drives the stirring rod 19 and the top plate 16 to rotate. During the rotation of the top plate 16 relative to the sealing plate 14, when the first protrusion 17 contacts the second protrusion 18, they squeeze and push the sealing plate 14 upward. When the first protrusion 17 passes the second protrusion 18, the sealing plate 14 is pushed downward under the action of the spring 15. The reciprocating motion of the sealing plate 14 closes and opens the first air inlet pipe 9. When the first air inlet pipe 9 is opened, due to the low air pressure inside the tank 1, external air passes through the first air inlet pipe 9, concentrated sulfuric acid water absorption, air passage 6, molecular sieve chamber to remove acidic gas, and the second air inlet pipe 10 to enter the tank 1, balancing the internal pressure and ensuring smooth material conveying. The screw conveyor 20 and motor 11 are paused, and the sealing plate 14 closes the first air inlet pipe 9, cutting off air circulation and preventing acidic gas from causing a large amount of calcium hydroxide to deteriorate.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A finished calcium hydroxide storage tank characterized by: The container includes a tank (1), on which a filter box (3) and a matching cover plate (5) are provided. The filter box (3) is provided with a partition plate (4), which seals the filter box (3) into a dehumidification chamber (7) and a molecular sieve chamber (8). The dehumidification chamber (7) contains concentrated sulfuric acid, and the molecular sieve chamber (8) contains granular molecular sieves. The top of the partition plate (4) is provided with an air passage (6). The cover plate (5) is provided with a first air inlet pipe (9), one end of which passes through the cover plate (5) and extends to the bottom of the concentrated sulfuric acid. The bottom of the molecular sieve chamber (8) is provided with a second air inlet pipe (10), which connects to the inside of the tank (1).

2. A calcium hydroxide finished product storage tank according to claim 1, characterized in that: The cover plate (5) is provided with a sealing plate (14) to block the first air intake pipe (9).

3. A calcium hydroxide finished product storage tank according to claim 2, characterized in that: The tank (1) is provided with a limiting slide rod (12). The bottom end of the limiting slide rod (12) is vertically fixed to the top surface of the tank (1). The top of the limiting slide rod (12) is fixedly provided with a baffle (13). The limiting slide rod (12) passes through one side of the sealing plate (14) and is slidably connected to the sealing plate (14). A spring (15) is sleeved on the limiting slide rod (12). The spring (15) is located between the baffle (13) and the sealing plate (14). A motor (11) is provided below the sealing plate (14). The motor (11) is fixed on the tank (1). The motor (11) is vertically arranged. The output end of the motor (11) is fixedly provided with a top plate (16). The lower surface of the sealing plate (14) is provided with an arc-shaped first protrusion (17). The upper surface of the top plate (16) is provided with an arc-shaped second protrusion (18) that matches the first protrusion (17).

4. A calcium hydroxide finished product storage tank according to claim 3, characterized in that: The motor (11) is a dual-axis motor (11), and a stirring rod (19) is fixedly provided at the other output end of the motor (11). The stirring rod (19) passes through the tank (1) and extends to the bottom of the tank (1).

5. A calcium hydroxide finished product storage tank as claimed in claim 1, wherein: The filter box (3) and the cover plate (5) are connected by a snap-fit ​​seal.

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