A moisture-proof limestone powder bin

Abstract

The utility model discloses a kind of moisture-proof limestone powder bins, including storage bin, storage bin is double-layer structure and double-layer structure is formed with inner cavity between, the inside of inner cavity is connected with electric heat tracing band, the top surface one side of storage bin is equipped with dehumidifier, dehumidifier is connected with conduit, the end of conduit extends downward along storage bin outer wall, the outer wall of storage bin is equipped with several fixing rings. The utility model uses double-layer bin wall+electric heat tracing band, inner cavity circumferential electric heat tracing directly eliminates outer wall condensate water root, blocks external humidity low temperature penetration path, insulates moisture source from physical level. Subarea multi-point air supply, dehumidifier dry air is into powder layer evenly through conduit, branch pipe, fixed ring air guide cavity, realizes whole bin humidity accurate regulation and control, avoid bottom humidity accumulation.

Description

Technical Field

[0001] This utility model relates to the field of limestone powder silo technology, specifically to a limestone powder silo designed to prevent moisture backflow. Background Technology

[0002] Limestone powder is a white powdery substance with calcium carbonate as its main component. Industrial limestone powder is mainly used in the construction field, including the preparation of mortar, silicate products, and road base materials. Based on the preparation process, it can be divided into heavy calcium carbonate and light calcium carbonate. Limestone powder (such as that used in desulfurization, building materials, etc.) is highly susceptible to absorbing moisture from the air during storage, leading to clumping and reduced fluidity, blockage of the discharge port, and even arching of the silo walls, severely impacting production efficiency and material quality.

[0003] Existing limestone silos using a single heating method can only alleviate condensation on the silo walls, but cannot solve the problems of moisture penetration and internal moisture absorption by the powder. Furthermore, the dehumidified air from the top cannot be evenly distributed to the lower part of the silo, leaving the powder at the bottom susceptible to moisture. Clumped powder adheres to the silo walls, creating "dead zones," exacerbating localized compaction and making cleaning difficult. Therefore, a moisture-proof limestone powder silo is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a limestone powder silo designed to prevent moisture regain, which solves the following problems: existing limestone silos using a single heating method can only alleviate condensation on the silo walls, but cannot solve the problems of moisture penetration and internal moisture absorption by the powder; the dehumidifying and drying air from the top is difficult to diffuse evenly to the lower part of the silo, and the powder at the bottom of the silo is still prone to moisture; and clumps of powder adhere to the silo walls, forming "dead zones," which exacerbate the problem of localized caking and make cleaning difficult.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a limestone powder silo designed to prevent moisture regain, comprising a storage silo with a double-layer structure and an inner cavity formed between the two layers. An electric heating tape is connected around the inside of the inner cavity. A dehumidifier is installed on one side of the top surface of the storage silo, and a duct is connected to the dehumidifier. The end of the duct extends downward along the outer wall of the storage silo. Several fixing rings are installed on the outer wall of the storage silo, and branch pipes are fixedly connected to the outer walls of the fixing rings. The ends of the branch pipes are connected to the ducts. An air guide cavity is formed on the inner wall of the fixing rings and communicates with the inside of the storage silo. A filter screen is installed at the opening of the air guide cavity.

[0008] As a further preferred embodiment of this utility model, a motor is installed in the center of the top surface of the storage compartment, a transmission column is provided inside the storage compartment, the upper end of the transmission column is connected to the power output end of the motor, a connecting rod is installed on the side wall of the transmission column, a scraper is installed at the end of the connecting rod, and the scraper is in close contact with the inner wall of the storage compartment.

[0009] As a further preferred embodiment of this utility model, an air guide block is sleeved on the upper surface of the transmission column, and a fixing column is installed on the top of the air guide block. The upper end of the fixing column is fixedly connected to the inner top of the storage compartment.

[0010] As a further preferred embodiment of this utility model, a connecting pipe is installed on the outer wall of the air guide block, the end of the connecting pipe is connected to the dehumidifier, a cavity is formed inside the air guide block, and several through holes are opened on the surface of the transmission column and inside the cavity.

[0011] As a further preferred embodiment of this utility model, an air guide plate is installed on the surface of the connecting rod. The air guide plate has an arc-shaped structure and several micro-holes on its surface. The air guide plate is connected to the transmission column through the connecting rod. Both the transmission column and the connecting rod are hollow structures.

[0012] As a further preferred embodiment of this utility model, a feed inlet is provided on one side of the top of the storage compartment, and a discharge outlet is provided at the bottom of the storage compartment.

[0013] (III) Beneficial Effects

[0014] This invention provides a moisture-proof limestone powder silo. It has the following beneficial effects:

[0015] This invention employs a double-layered chamber wall and an electric heating cable with a surrounding inner cavity to directly eliminate the source of condensation on the outer wall, blocking the low-temperature penetration path of external moisture and physically isolating the moisture source. Multi-point air supply in zones ensures that the dehumidifier's dried air, through ducts, branch pipes, and a fixed ring air guide cavity, evenly penetrates the powder layer through filters distributed around the chamber wall, achieving precise humidity control throughout the chamber and preventing moisture accumulation at the bottom. The dehumidifier connects to the air guide block, drive column through-holes, hollow connecting rod, and microporous air guide plate, forming a dry airflow channel penetrating the core of the powder chamber, directly acting on areas prone to clumping. A motor-driven scraper rotates against the chamber wall, simultaneously removing adhering powder; as the arc-shaped air guide plate moves with the connecting rod, the dry airflow ejected from its surface micropores instantly loosens the newly scraped powder, preventing secondary clumping. The microporous airflow of the air guide plate keeps the powder in a micro-flow state, disrupting the conditions for moisture adsorption and suppressing moisture regain from a kinetic perspective. Attached Figure Description

[0016] Figure 1 This is an external structural diagram of the moisture-proof limestone powder silo described in this utility model;

[0017] Figure 2 This is a diagram showing the internal structure of the moisture-proof limestone powder silo described in this utility model.

[0018] Figure 3 This is a diagram showing the internal structure of the air guide block described in this utility model.

[0019] In the diagram: 1. Storage compartment; 2. Feed inlet; 3. Motor; 4. Dehumidifier; 5. Fixing ring; 6. Conduit; 7. Branch pipe; 8. Inner cavity; 9. Electric heating tape; 10. Air guide cavity; 11. Connecting rod; 12. Filter screen; 13. Air guide plate; 14. Scraper; 15. Transmission column; 16. Air guide block; 17. Connecting pipe; 18. Cavity; 19. Through hole; 20. Fixing column. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 This utility model provides a technical solution: a limestone powder silo for preventing moisture regain, including a storage silo 1. The storage silo 1 has a double-layer structure and an inner cavity 8 is formed between the double layers. An electric heating tape 9 is connected around the inside of the inner cavity 8. The electric heating tape 9 between the double-layer silo walls directly heats the air in the inner cavity 8, eliminating the temperature difference between the inside and outside of the silo wall, completely blocking the formation of condensate on the outer wall, and solving the condensation problem caused by the "external heat and internal cold" of traditional single-layer silos. A dehumidifier 4 is installed on one side of the top surface of storage chamber 1. A duct 6 is connected to the dehumidifier 4, and the end of the duct 6 extends downwards along the outer wall of storage chamber 1. Several fixing rings 5 ​​are installed on the outer wall of storage chamber 1, and branch pipes 7 are fixedly connected to the outer wall of the fixing rings 5. The ends of the branch pipes 7 are connected to the duct 6. An air guide cavity 10 is formed on the inner wall of the fixing rings 5 ​​and is connected to the interior of storage chamber 1. Dry air from the dehumidifier 4 passes through the duct 6, branch pipes 7, fixing rings 5, and air guide cavity 10, and is evenly penetrated into the powder layer through circumferentially distributed filters 12, achieving full-area humidity control of the chamber wall and preventing moisture accumulation at the bottom. A filter 12 is installed at the opening of the air guide cavity 10. The filter 12 at the opening of the air guide cavity 10 prevents powder backflow, ensuring long-term unobstructed airflow and reducing maintenance frequency.

[0022] In a further improvement, a motor 3 is installed in the center of the top surface of the storage bin 1. A transmission column 15 is installed inside the storage bin 1, with its upper end connected to the power output end of the motor 3. A connecting rod 11 is installed on the side wall of the transmission column 15, and a scraper 14 is installed at the end of the connecting rod 11, fitting snugly against the inner wall of the storage bin 1. The motor 3 drives the transmission column 15, which in turn drives the connecting rod 11 and the scraper 14. The scraper 14 rotates against the bin wall, removing adhering wet powder in real time, preventing material blockage caused by arching of the bin wall. This provides a moving platform for the subsequent air guide plate 13, achieving simultaneous mechanical cleaning and airflow drying.

[0023] In a further improvement, an air guide block 16 is fitted onto the upper surface of the transmission column 15, and a fixing column 20 is installed on the top of the air guide block 16. The upper end of the fixing column 20 is fixedly connected to the inner top of the storage compartment 1. A connecting pipe 17 is installed on the outer wall of the air guide block 16, and the end of the connecting pipe 17 is connected to the dehumidifier 4. A cavity 18 is formed inside the air guide block 16, and several through holes 19 are opened on the surface of the transmission column 15 inside the cavity 18. The dry airflow passes through the cavity 18 of the air guide block 16, enters the hollow connecting rod 11 through the through holes 19 of the transmission column 15, and directly reaches the center area of ​​the powder compartment, solving the pain point of "difficulty in reaching the moisture in the center of the compartment" in traditional solutions.

[0024] In a further improvement, a guide plate 13 is mounted on the surface of the connecting rod 11. The guide plate 13 has an arc-shaped structure and several micro-holes on its surface. The guide plate 13 is connected to the transmission column 15 through the connecting rod 11. Both the transmission column 15 and the connecting rod 11 are hollow structures. When the scraper 14 scrapes off the wet powder, a dry airflow is ejected from the micro-holes of the guide plate 13, simultaneously drying the newly exposed powder and preventing secondary agglomeration.

[0025] Further improvements include a feed inlet 2 on one side of the top of storage bin 1 and a discharge outlet at the bottom of storage bin 1.

[0026] Working Principle: The electric heating tape 9 in the inner cavity 8 continuously heats the air layer between the double-layered chamber walls, raising the chamber wall temperature above the dew point, completely eliminating the conditions for condensation formation on the outer wall, and forming a thermal barrier to block the path of external ambient moisture to penetrate into the low-temperature interior through the chamber walls. The dehumidifier 4 draws in ambient air, deeply dehumidifies it, and outputs low-temperature dry air. The dry air overflows from the air guide cavity 10 of the fixed ring 5 distributed around the circumference of the chamber wall, and is evenly diffused into the gaps between the powder particles through the filter screen 12. The airflow slowly permeates from the chamber wall towards the center, replacing the water molecules adsorbed by the powder. The dry air enters the cavity 18 of the air guide block 16, flows through the through holes 19 on the surface of the transmission column 15, flows into the hollow connecting rod 11, and is finally sprayed from the micropores of the arc-shaped air guide plate 13. When the air guide plate 13 rotates with the scraper 14, the micropore airflow directly impacts the powder in the chamber center and along the path of the scraper 14, destroying the water molecule adsorption layer. Motor 3 drives transmission column 15, which in turn drives scraper 14 at the end of connecting rod 11 to rotate against the bin wall, removing adhering powder and preventing arching of the bin wall. As scraper 14 moves, micropores in its surface air guide plate 13 simultaneously spray out dry airflow, instantly drying the newly scraped damp powder and preventing secondary agglomeration due to high local moisture content during the powder's descent. The micropore airflow keeps the powder in a slightly fluidized state, increasing the gaps between powder particles, reducing capillary water absorption, and inhibiting deep moisture regain.

[0027] The components of this utility model are: 1. storage compartment; 2. feed inlet; 3. motor; 4. dehumidifier; 5. fixing ring; 6. conduit; 7. branch pipe; 8. inner cavity; 9. electric heating tape; 10. air guide cavity; 11. connecting rod; 12. filter screen; 13. air guide plate; 14. scraper; 15. transmission column; 16. air guide block; 17. connecting pipe; 18. cavity; 19. through hole; 20. fixing column. All components are general standard parts or parts known to those skilled in the art. Their structure and principles can be obtained by those skilled in the art through technical manuals or conventional experimental methods. The new design addresses the problem that existing limestone compartments, using a single heating method, only alleviate condensation on the compartment walls but fail to solve the problems of moisture penetration and powder internal absorption. Furthermore, the dehumidified air from the top is difficult to diffuse evenly to the lower part of the compartment, leaving the powder at the bottom susceptible to moisture. Clumped powder adheres to the compartment walls, creating "dead zones" that exacerbate localized caking and are difficult to clean. This new design addresses these issues through the combination of the aforementioned components. It employs a double-layered compartment wall and an electric heating tape 9, with an inner cavity 8 surrounded by electric heating to directly eliminate the source of condensation on the outer wall, blocking the low-temperature penetration path of external moisture and physically isolating the moisture source. Multi-point air supply in zones allows the dehumidifier 4 to deliver dry air through ducts 6, branch pipes 7, and a fixed ring 5, then through a circumferentially distributed filter screen 12 to evenly penetrate the powder layer, achieving precise humidity control throughout the compartment and preventing moisture accumulation at the bottom. The dehumidifier 4 is connected to the air guide block 16, the transmission column 15 through hole 19, the hollow connecting rod 11, and the microporous air guide plate 13, forming a dry airflow channel that penetrates the core of the powder hopper, directly acting on the area prone to clumping. The motor 3 drives the scraper 14 to rotate against the hopper wall, simultaneously removing the attached powder; when the arc-shaped air guide plate 13 moves with the connecting rod 11, the dry airflow ejected from the micropores on its surface immediately loosens the newly scraped powder, preventing secondary clumping. The microporous airflow of the air guide plate 13 keeps the powder in a micro-flow state, disrupting the conditions for moisture adsorption and inhibiting re-moistening from a kinetic perspective. The above shows and describes the basic principles and main features of this utility model and its advantages. For those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A moisture-proof limestone powder silo, comprising a storage silo (1), characterized in that: The storage chamber (1) has a double-layer structure and an inner cavity (8) is formed between the two layers. An electric heating tape (9) is connected around the inside of the inner cavity (8). A dehumidifier (4) is installed on one side of the top surface of the storage chamber (1). A duct (6) is connected to the dehumidifier (4). The end of the duct (6) extends downward along the outer wall of the storage chamber (1). Several fixing rings (5) are installed on the outer wall of the storage chamber (1). A branch pipe (7) is fixedly connected to the outer wall of the fixing ring (5). The end of the branch pipe (7) is connected to the duct (6). An air guide cavity (10) is formed on the inner wall of the fixing ring (5) and the air guide cavity (10) is connected to the inside of the storage chamber (1). A filter screen (12) is installed at the opening of the air guide cavity (10).

2. The limestone powder silo for preventing moisture regain according to claim 1, characterized in that: A motor (3) is installed in the middle of the top surface of the storage compartment (1). A transmission column (15) is provided inside the storage compartment (1). The upper end of the transmission column (15) is connected to the power output end of the motor (3). A connecting rod (11) is installed on the side wall of the transmission column (15). A scraper (14) is installed at the end of the connecting rod (11). The scraper (14) is in close contact with the inner wall of the storage compartment (1).

3. A moisture-proof limestone powder silo according to claim 2, characterized in that: An air guide block (16) is fitted on the upper surface of the transmission column (15), and a fixing column (20) is installed on the top of the air guide block (16). The upper end of the fixing column (20) is fixedly connected to the inner top of the storage compartment (1).

4. A limestone powder silo for preventing moisture regain according to claim 3, characterized in that: A connecting pipe (17) is installed on the outer wall of the air guide block (16). The end of the connecting pipe (17) is connected to the dehumidifier (4). A cavity (18) is formed inside the air guide block (16). Several through holes (19) are opened on the surface of the transmission column (15) and inside the cavity (18).

5. A moisture-proof limestone powder silo according to claim 2, characterized in that: The surface of the connecting rod (11) is equipped with an air guide plate (13). The air guide plate (13) has an arc-shaped structure and several micro holes on its surface. The air guide plate (13) is connected to the transmission column (15) through the connecting rod (11). Both the transmission column (15) and the connecting rod (11) are hollow structures.

6. A limestone powder silo for preventing moisture regain according to claim 1, characterized in that: The storage chamber (1) has a feed inlet (2) on one side of the top and a discharge outlet at the bottom.

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