A cement ship tank

Abstract

The present invention discloses a cement ship tank, which includes a tank body assembly, an air intake system and a feeding port. The air intake system is installed on the front side of the tank body assembly. The air intake system is composed of a main air intake pipeline, a ball valve, an auxiliary air intake pipeline and a check valve. A plurality of feeding ports are provided and are evenly arranged on the top of the tank body assembly. The tank also includes a fluidizing device installed at the bottom inside the tank body assembly; and an air chamber balance system arranged at the top inside the tank body assembly. Firstly, the present invention enables the cement to be discharged more fully during unloading, avoiding the problem of a relatively high material residue rate. Secondly, it ensures air pressure balance, thereby preventing the tank body from deforming due to excessive pressure difference and improving the reliability of the air chamber. Thirdly, it avoids problems such as easy cracking and difficult maintenance caused by the large volume. Fourthly, it increases the cement unloading rate, further reduces the residue rate, and can prevent blockage at the bottom thereof.

Description

Technical Field

[0001] The present invention belongs to the technical field of cement ships. Specifically, the present invention relates to a cement ship tank. Background Art

[0002] Cement is a powdery hydraulic inorganic binder. After being mixed with water and stirred, it becomes a paste that can harden in the air or in water and can firmly cement materials such as sand and stone together. As an important binder, cement is widely used in civil engineering, water conservancy, national defense and other projects. At present, cement needs to be transported by water using a bulk cement ship. The cement ship is equipped with special cement transportation equipment, and a dust collection chamber or an air filter is installed on the hatch cover. The cement ship tank is installed on the cement ship for loading cement.

[0003] With the completion of more and more large-scale new dry-process cement plants along the river and coastal areas, water transportation of bulk cement has the advantages of relatively low transportation cost and large single shipment volume, which has led to the rapid development of bulk cement ships in recent years. Moreover, the existing cement ships are inexpensive, the materials are easy to obtain, the construction equipment and construction technology are simple, the maintenance cost is low, and wood and steel can be saved.

[0004] However, the above-mentioned cement ship tank still has the following disadvantages:

[0005] First, the volume utilization rate of the existing cement ship tank itself is relatively low, and there is a problem of a relatively high material residue rate when discharging materials.

[0006] Second, the existing cement ship tank lacks a device for automatically balancing the pressure difference between the air chamber and the silo, and the tank body may be deformed due to excessive pressure difference during transportation.

[0007] Third, the air chamber of the existing cement ship tank is relatively large in volume, and there are problems such as easy cracking and difficult maintenance.

[0008] Fourth, the discharging structure of the existing cement ship tank is set in a straight cylinder shape, resulting in a slow discharging speed. Summary of the Invention

[0009] The present invention provides a cement ship tank, which solves the problems raised in the above background art.

[0010] To achieve the above object, the technical solution adopted by the present invention is as follows: A cement ship tank, comprising a tank assembly, an air inlet system and a feeding port. The air inlet system is installed on the front side of the tank assembly. The air inlet system consists of a main air inlet pipe, a ball valve, an auxiliary air inlet pipe and a check valve. A plurality of feeding ports are provided and are evenly arranged on the top of the tank assembly. It further includes a fluidizing device installed at the bottom inside the tank assembly; an air chamber balance system provided at the top inside the tank assembly; a discharging system provided inside the tank assembly; an air inlet pipe provided outside the tank assembly and communicating with the tank assembly; and a sliding plate laid on the front and rear sides of the tank assembly.

[0011] Preferably, the fluidizing device includes an air chamber, a plurality of throat-shaped canvases and a fluidized bed support plate. The air chamber is set as an independent air chamber and is laid on the left and right sides of the tank assembly. The fluidized bed support plate is also laid on the left and right sides of the tank assembly. The throat-shaped canvases are fixedly connected to the fluidized bed support plate through pressing blocks. The upper side of the throat-shaped canvases is breathable and the lower side is non-breathable.

[0012] Preferably, the air chamber includes a throat pipe fixing plate, an upper sealing plate, a side sealing plate and a throat pipe joint. The angle between the upper sealing plate and the horizontal plane is greater than the angle of repose of cement. The throat pipe joint is installed on the surface of the throat pipe fixing plate.

[0013] Preferably, the air chamber balance system includes a cavity air chamber and an air-solid separator. The cavity air chamber is formed by the tank assembly, the fluidized bed support plate and the sliding plate. The air-solid separator is provided at the top of the tank assembly, and the cavity air chamber is connected to the air-solid separator through a separation pipe.

[0014] Preferably, the discharging system includes a discharging pipe. A reduced-diameter bell mouth is provided at the bottom end of the discharging pipe. A flow guiding cone is provided inside the reduced-diameter bell mouth. One end cross-section of the reduced-diameter bell mouth is circular, and the other end cross-section is circular, elliptical or oblong.

[0015] Preferably, head ends are provided on both the front and rear sides of the tank assembly, and the head ends are set as dish-shaped head ends, elliptical head ends, spherical head ends or special-shaped head ends.

[0016] Preferably, the inside of the tank assembly is composed of a plurality of independent bins, and a partition board is installed between every two adjacent independent bins.

[0017] Preferably, a filter screen is provided inside the feeding port.

[0018] Preferably, holes are formed on the surface of the sliding plate, and a filter material canvas assembly is installed.

[0019] The beneficial effects of adopting the above technical solutions are as follows: First, by dividing the interior of the tank body assembly into multiple independent bins, the volume utilization rate of the cement ship tank itself is improved. During the unloading process, by adjusting the angle of the fluidized bed support plate in the fluidization device, the cement can be more fully unloaded during unloading, avoiding the problem of a high material residue rate. Second, the cavity air chamber formed by the fluidized bed support plate, the sliding plate and the tank body assembly ensures air pressure balance with the inside of the tank through the air and material separator, thereby preventing the tank body from deforming due to excessive pressure difference and improving the reliability of the air chamber. When unloading is required, the air chamber balance system is closed, and then the cement is unloaded. Third, the original cement ship tank only has one air chamber. In the present invention, the volume of the air chamber is reduced and placed in each independent bin, thus avoiding problems such as easy cracking and difficult maintenance caused by its large volume. Fourth, by changing the original straight tube of the discharge pipe into a variable-diameter bell mouth, the flow guiding cone inside the variable-diameter bell mouth plays a guiding role, thereby increasing its unloading rate, further reducing the residue rate, and preventing blockage at its bottom. Description of the Drawings

[0020] Figure 1 is the assembly drawing of the cement ship tank provided by the present invention;

[0021] Figure 2 is the assembly drawing of the tank body assembly and the fluidization device;

[0022] Figure 3 is the assembly drawing of the tank body assembly and the air chamber balance system;

[0023] Figure 4 is the partial assembly drawing of the tank body assembly;

[0024] Figure 5 is the side assembly drawing of the tank body assembly;

[0025] Figure 6 is the partial side view of the tank body assembly;

[0026] Figure 7 is the assembly drawing of the air chamber;

[0027] Figure 8 is the assembly drawing of the air chamber from another perspective;

[0028] Figure 9 is the assembly drawing of the discharge system;

[0029] Figure 10 is the assembly drawing of the filter fabric assembly;

[0030] Among them:

[0031] 1. Tank assembly; 2. Fluidization device; 21. Air chamber; 211. Throat pipe fixing plate; 212. Upper sealing plate; 213. Side sealing plate; 214. Throat pipe joint; 22. Throat-shaped canvas; 23. Fluidized bed support plate; 24. Pressing block; 3. Air chamber balance system; 31. Cavity air chamber; 32. Air and material separator; 33. Separation pipeline; 4. Intake system; 5. Discharge system; 51. Discharge pipeline; 52. Reducing bell mouth; 53. Flow guiding cone; 6. Feeding port; 7. Inlet pipe; 8. Slide plate; 9. Head; 10. Independent bin; 11. Partition board; 12. Filter material canvas assembly. Detailed implementation manners

[0032] The following is a more detailed description of the specific implementation manners of the present invention by referring to the accompanying drawings and describing the embodiments, aiming to help those skilled in the art have a more complete, accurate and in-depth understanding of the concept and technical solution of the present invention and facilitate its implementation.

[0033] As Figures 1 to 10 shown, the present invention is a cement ship tank, which has the advantages of high volume utilization rate, fast discharging speed, less residue, low failure rate and easy maintenance.

[0034] Specifically, as Figures 1 to 10 shown, it includes a tank assembly 1, an intake system 4 and a feeding port 6. The intake system 4 is installed on the front side of the tank assembly 1. The intake system 4 is composed of a main intake pipeline 41, a ball valve 42, an auxiliary intake pipeline 43 and a check valve 44. A plurality of feeding ports 6 are provided and are evenly arranged on the top of the tank assembly 1. It also includes a fluidization device 2, which is installed at the bottom inside the tank assembly 1; an air chamber balance system 3, which is arranged at the top inside the tank assembly 1; a discharge system 5, which is arranged inside the tank assembly 1; an inlet pipe 7, which is arranged outside the tank assembly 1 and is communicated with the tank assembly 1; a slide plate 8, which is laid on the front and rear sides of the tank assembly 1.

[0035] The fluidization device 2 includes an air chamber 21, a plurality of throat-shaped canvases 22 and a fluidized bed support plate 23. The air chamber 21 is set as an independent air chamber and is laid on the left and right sides of the tank assembly 1. The fluidized bed support plate 23 is also laid on the left and right sides of the tank assembly 1. The throat-shaped canvas 22 is fixedly connected to the fluidized bed support plate 23 through a pressing block 24. The upper side of the throat-shaped canvas 22 is breathable and the lower side is airtight.

[0036] The air chamber 21 includes a throat pipe fixing plate 211, an upper sealing plate 212, side sealing plates 213, and a throat pipe joint 214. The angle between the upper sealing plate 212 and the horizontal plane is greater than the angle of repose of cement. The throat pipe joint 214 is installed on the surface of the throat pipe fixing plate 211.

[0037] Furthermore, the air chamber 21 is arranged in the left and right side directions of the tank assembly 1, and each bin of the tank assembly 1 has an independent air chamber 21.

[0038] The air chamber balance system 3 includes a cavity air chamber 31 and an air - material separator 32. The cavity air chamber 31 is formed by the tank assembly 1, the fluidized bed support plate 23, and the slide plate 8. The air - material separator 32 is arranged at the top of the tank assembly 1, and the cavity air chamber 31 is connected to the air - material separator 32 through a separation pipeline 33.

[0039] Furthermore, the cavity air chamber 31 formed by the fluidized bed support plate 23, the slide plate 8 and the tank assembly 1 ensures air pressure balance in the tank through the air - material separator 21.

[0040] The discharging system 5 includes a discharging pipeline 51. A reduced - diameter flared opening 52 is provided at the bottom end of the discharging pipeline 51. A guiding cone 53 is arranged inside the reduced - diameter flared opening 52. One end cross - section of the reduced - diameter flared opening 52 is circular, and the other end cross - section is circular, elliptical or oblong.

[0041] Furthermore, the reduced - diameter flared opening 52 has three forms:

[0042] First, the reduced - diameter flared opening 52 is set as a hollow frustum of a cone, the guiding cone 53 is set as a solid cone. The upper and lower port cross - sections of the reduced - diameter flared opening 52 and the guiding cone 53 are both circular, and the diameter of the lower port cross - section is greater than that of the upper port cross - section.

[0043] Second, the reduced - diameter flared opening 52 is set as a hollow elliptical frustum of a cone, the guiding cone 53 is set as a solid elliptical cone. The upper and lower port cross - sections of the reduced - diameter flared opening 52 and the guiding cone 53 are both elliptical, and the diameter of the lower port cross - section is greater than that of the upper port cross - section.

[0044] Third, the reduced - diameter flared opening 52 is set as a hollow oblong frustum of a cone, the guiding cone 53 is set as a solid oblong cone. The upper and lower port cross - sections of the reduced - diameter flared opening 52 and the guiding cone 53 are both oblong, and the diameter of the lower port cross - section is greater than that of the upper port cross - section.

[0045] Corresponding reduced - diameter flared openings 52 can be selected according to different bottom structures, so as to enable a wider material suction coverage area.

[0046] Both the front and rear sides of the tank body assembly 1 are provided with heads 9, and the heads 9 are provided as dished heads, elliptical heads, spherical heads or special-shaped heads.

[0047] The interior of the tank body assembly 1 is composed of a plurality of independent bins 10, and a partition plate 11 is installed between every two adjacent independent bins 10.

[0048] Furthermore, the fluidized bed of each independent bin 10 is fed with gas independently by an intake pipeline and an air chamber, and each independent bin 10 also has an independent discharge pipeline, which is aggregated into the main discharge pipeline.

[0049] A filter screen is arranged inside the feeding port 6.

[0050] Furthermore, the filter screen ensures that when loading materials into the tank body assembly 1 through the feeding port 6, stones or large lumps will not enter the interior of the tank body assembly 1.

[0051] Holes are formed on the surface of the sliding plate 8, and a filter material canvas assembly 12 is installed.

[0052] Furthermore, through the holes formed on the surface of the sliding plate 8, the air pressure balance is supplemented and guaranteed, and the filter material canvas assembly 12 prevents cement from entering the holes.

[0053] The following uses specific embodiments to elaborate on the specific working methods:

[0054] Embodiment 1:

[0055] First, move the cement ship tank to the cement plant by a cement ship, and then load materials into the interior of the tank body assembly 1 through the feeding port 6. During the loading process, the filter screen ensures that when loading materials into the tank body assembly 1 through the feeding port 6, stones or large lumps will not enter the interior of the tank body assembly 1. After loading is completed, transport it to the destination by a cement ship. During the transportation process, keep the air chamber balance system 3 in the open state. When unloading is required, first close the air chamber balance system 3, then unload the cement, and then inflate the interior of the tank body assembly 1 through the intake system 4. When the inflation reaches the predetermined threshold, open the valve in the discharge system 5 and unload through the discharge pipeline 51, thereby completing the transportation of the cement. By dividing the interior of the tank body assembly 1 into a plurality of independent bins 10, the volume utilization rate of the cement ship tank itself is improved. This tank body structure can transport the cement stably and safely, increase the cement unloading rate, and reduce the remaining rate of cement in the tank body assembly 1.

[0056] Embodiment 2:

[0057] Based on Embodiment 1, when discharging is required, first close the air chamber balance system 3, then discharge the cement, and then inflate the interior of the tank assembly 1 through the air intake system 4. When the inflation reaches a predetermined threshold, open the valve in the discharge system 5 and discharge through the discharge pipeline 51. During the discharging process, adjust the angle of the fluidized bed support plate 23 in the fluidization device 2, so that the cement is discharged more fully when discharging, avoiding the problem of a relatively high material residue rate.

[0058] Embodiment 3:

[0059] Based on Embodiment 1, transport it to the destination by a cement ship. During the transportation process, keep the air chamber balance system 3 in the open state. The cavity air chamber 31 formed by the fluidized bed support plate 23, the sliding plate 8 and the tank assembly 1 is kept in air pressure balance with the inside of the tank through the air and material separator 21, thereby preventing the tank from deforming due to excessive pressure difference and improving the reliability of the air chamber. When discharging is required, close the air chamber balance system 3 and then discharge the cement.

[0060] Embodiment 4:

[0061] Based on Embodiment 1, inflate the interior of the tank assembly 1 through the air intake system 4. When the inflation reaches a predetermined threshold, open the valve in the discharge system 5 and discharge through the discharge pipeline 51. The air chamber 21 is arranged above the fluidized bed support plate 23 on the left and right sides of the tank body, and each independent bin 10 has an independent air chamber 21. In the original cement ship tank, only one air chamber 21 is provided. In the present invention, the volume of the air chamber 21 is reduced and placed in each independent bin 10, thereby avoiding problems such as easy cracking and difficult maintenance caused by its large volume.

[0062] Embodiment 5:

[0063] Based on Embodiment 1, when the inflation reaches a predetermined threshold, open the valve in the discharge system 5 and discharge through the discharge pipeline 51, thereby completing the transportation of the cement. When discharging, give a positive pressure air power to the discharge pipeline 51, so that it sucks the cement inside the tank through the reduced-diameter flared mouth 52 at the bottom. A flow guide cone 53 is arranged inside the reduced-diameter flared mouth 52, and the flow guide cone 53 plays a role in guiding the flow. Since the bottom of the flow guide cone 53 is in contact with the tank body, there will be no cement residue at its bottom. Finally, the cement is transported out through the discharge pipeline 51 to complete the discharging. By changing the original straight tube of the discharge pipeline 51 into a reduced-diameter flared mouth 52, its discharging rate is increased, the residue rate is further reduced, and blockage at its bottom can be prevented.

[0064] The present invention has been described exemplarily in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present invention; or without improvement, the above concept and technical solution of the present invention are directly applied to other occasions, all are within the protection scope of the present invention.

Claims

1. A cement ship tank, comprising a tank body assembly (1), an air intake system (4) and a feeding port (6). The air intake system (4) is installed on the front side of the tank body assembly (1). The air intake system (4) is composed of a main air intake pipe (41), a ball valve (42), an auxiliary air intake pipe (43) and a check valve (44). A plurality of feeding ports (6) are provided and are evenly arranged on the top of the tank body assembly (1). It is characterized in that: The interior of the tank assembly (1) is composed of multiple independent bins (10), and a partition plate (11) is installed between every two adjacent independent bins (10); It further includes a fluidization device (2), and the fluidization device (2) is installed at the bottom inside the tank assembly (1); An air chamber balance system (3), and the air chamber balance system (3) is arranged at the top inside the tank assembly (1); A discharging system (5), and the discharging system (5) is arranged inside the tank assembly (1); An air inlet pipe (7), and the air inlet pipe (7) is arranged outside the tank assembly (1) and is communicated with the tank assembly (1); A sliding plate (8), and the sliding plate (8) is laid on the front and rear sides of the tank assembly (1); The fluidization device (2) includes an air chamber (21), a plurality of throat-shaped canvases (22) and a fluidized bed support plate (23). The air chamber (21) is arranged in the left and right directions of the tank assembly (1), and each independent bin (10) of the tank assembly (1) has an independent air chamber (21). The fluidized bed support plate (23) is laid on the left and right sides of the tank assembly (1). The throat-shaped canvas (22) is fixedly connected to the fluidized bed support plate (23) through a pressing block (24). The upper side of the throat-shaped canvas (22) is air-permeable and the lower side is air-impermeable; The air chamber (21) includes a throat pipe fixing plate (211), an upper sealing plate (212), a side sealing plate (213) and a throat pipe joint (214). The angle between the upper sealing plate (212) and the horizontal plane is greater than the angle of repose of cement. The throat pipe joint (214) is installed on the surface of the throat pipe fixing plate (211); The air chamber balance system (3) includes a cavity air chamber (31) and an air and material separator (32). The cavity air chamber (31) is formed by the tank assembly (1), the fluidized bed support plate (23) and the sliding plate (8). The air and material separator (32) is arranged at the top of the tank assembly (1), and the cavity air chamber (31) is communicated with the air and material separator (32) through a separation pipe (33).

2. The cement ship tank according to claim 1, characterized in that: The discharging system (5) includes a discharging pipe (51). A reduced-diameter flared opening (52) is arranged at the bottom end of the discharging pipe (51). A flow guide cone (53) is arranged inside the reduced-diameter flared opening (52). One end cross-section of the reduced-diameter flared opening (52) is circular, and the other end cross-section is circular, oval or oblong.

3. A cement ship tank according to claim 1, characterized in that: Head covers (9) are arranged on both the front and rear sides of the tank assembly (1), and the head covers (9) are set as dish-shaped head covers, elliptical head covers, spherical head covers or special-shaped head covers.

4. A cement ship tank according to claim 1, characterized in that: A filter screen is arranged inside the feeding port (6).

5. A cement ship tank according to claim 1, characterized in that: Holes are formed on the surface of the sliding plate (8), and a filter material canvas assembly (12) is installed.

Images