Cement bulk device

Abstract

A cement bulk device belongs to the cement technology, is positioned at a discharging end of a cement bulk machine and is used for bearing a discharger of the cement bulk machine, and comprises a mounting platform and a bulk head arranged on the mounting platform, the bulk head is connected below a telescopic pipe, a winch is arranged on the mounting platform, and the telescopic pipe is connected with the winch. A traction rope driven by the winch penetrates through the outer pipe and the inner pipe of the telescopic pipe to be connected to the bulk head, and flow deflectors are arranged on the inner wall of the inner pipe of the telescopic pipe to guide flowing cement flow so as to prevent the cement from being retained and adsorbed into telescopic wrinkles. The bulk head is novel in conception and ingenious in design, the failure rate of the bulk head is effectively reduced, the possibility of cement leakage of the bulk head is effectively reduced, the service life is prolonged, and environmental pollution is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of cement technology, and in particular relates to cement conveying, specifically a conveying device for transferring finished bulk cement to the packaging stage. Background Technology

[0002] A bulk cement loading machine is a specialized piece of equipment for loading bulk cement. It connects a cement silo with a bulk cement truck and uses a series of interlocking control devices to automatically load the bulk cement onto the truck, thereby transferring the ground bulk cement to the packaging stage.

[0003] The bulk cement loading machine mainly includes equipment such as a feeder, gate valve, unloading switch valve, conveying chute, unloader, bulk loading head, material level control device and electrical control cabinet. Among them, the bulk loading head receives the unloader at the end of the conveying chute and discharges the cement bulk truck downwards. It is the discharge terminal of the entire bulk cement loading system and an important part of the conveying process. Current bulk cement loading heads have various problems: The inner and outer cylinders are concentrically arranged, and the loading head is raised and lowered via a double-layer telescopic tube. The winch's traction rope passes through the inner tube of the double-layer telescopic tube and connects to the upper end of the inner cylinder of the loading head below the double-layer telescopic tube. This structure means that during bulk unloading, the part of the winch rope connected to the inner cylinder of the loading head is constantly eroded by the cement flow, making it prone to loosening and causing the loading head to become uncontrollable by the winch, thus preventing it from rising and retracting. Furthermore, stopping the machine for repairs at this fault location requires disassembling the entire loading head, which is time-consuming and labor-intensive. Because the double-layer telescopic tube needs to be folded, its inner wall cannot be made smooth. Even with a lubricating coating, wrinkles caused by folding are inevitable. These wrinkles inevitably trap and retain cement as it flows through. As the loading head rises and falls, some of the cement residue remaining on the inner wall of the double-layer telescopic tube escapes from the loading head due to vibration and falls to the ground, causing environmental pollution. Both of these problems, when applied to actual production and daily life, lead to imperfections and malfunctions in the bulk packaging head. In response, people have been studying the root causes of these problems and trying to find solutions. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model proposes a bulk cement dispensing device that effectively reduces the failure rate of the dispensing head and also reduces the possibility of cement leakage from the dispensing head.

[0005] The technical problem to be solved by this utility model is achieved through the following technical solution:

[0006] A cement bulk loading device, located at the unloading end of a cement bulk loading machine, receives the unloader from the cement bulk loading machine. This invention includes an installation platform and a bulk loading head mounted on the installation platform. The bulk loading head has openings at both ends and includes an inner cylinder and an outer cylinder coaxially sleeved together. The outer cylinder is conical. A connecting rod is provided between the outer cylinder and the inner cylinder. The two ends of the connecting rod are respectively connected and fixed to the inner wall of the outer cylinder and the outer wall of the inner cylinder. A traction rope fixing ring is provided on the connecting rod. A telescopic tube is connected to the upper end of the bulk loading head. The telescopic tube is a coaxial sleeve. The lower end of the outer tube of the telescopic tube is connected to the upper end of the outer cylinder of the bulk loading head, and the lower end of the inner tube of the telescopic tube is connected to the upper end of the inner cylinder of the bulk loading head. A winch is mounted on the installation platform. The traction rope of the winch passes between the outer tube and the inner tube of the telescopic tube and is connected to the traction rope fixing ring of the connecting rod inside the bulk loading head.

[0007] In this invention, the bulk loading head has at least two symmetrically arranged connecting rods, preferably three or four, with each connecting rod corresponding to a traction rope, which rises and falls synchronously under the drive of a winch.

[0008] Furthermore, the cement bulk dispensing device also includes an end cap, which closes the upper end of the outer tube of the telescopic pipe, and the upper end of the inner tube of the telescopic pipe is connected to the unloading pipe of the unloader. The end cap has a central opening, through which the unloading pipe passes.

[0009] Furthermore, the end cap is provided with a pulley support column, and a traction rope guide pulley is provided at the top or upper part of the pulley support column. The traction rope passes around the traction rope guide pulley, and the pulley support column on the end cap is located directly above the traction rope fixing ring. The traction rope passes through a pre-set small hole on the end cap.

[0010] Furthermore, the installation platform is equipped with a pulley support column with a traction rope guide pulley, located between the winch and the end cover, which straightens the traction ropes from different angles from the end cover direction into a parallel distribution and sends them to the winch.

[0011] Furthermore, the end cap is also equipped with a dust collection pipe, the opening of which is between the inner and outer pipes of the telescopic tube, to collect the cement that rises therein and prevent it from escaping and polluting the environment.

[0012] In this utility model, the inner wall of the telescopic pipe is provided with a flexible guide plate. The upper end of the guide plate is connected to the inward wrinkle of the inner tube of the telescopic pipe, and the lower end of the guide plate is slightly inclined inward. The guide plate covers the outward wrinkle below it, and the lower end of the guide plate covers the upper end of the next adjacent guide plate, so that the guide plate can fully cover the inner wall of the inner tube of the telescopic pipe along the cement flow direction.

[0013] Furthermore, the guide vanes are in the form of rings or in the form of fish scales.

[0014] In this utility model, a pressure balance tube is provided inside the bulk head. The pressure balance tube is hollow and open at both ends. The lower end of the pressure balance tube is located at the central axis of the inner cylinder of the bulk head and is fixed inside the inner cylinder of the bulk head by a balance tube fixing rod. The upper end of the pressure balance tube is bent horizontally and passes through the inner cylinder and outer cylinder of the bulk head in sequence, opening at the outer wall of the outer cylinder of the bulk head.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] This application sets the traction rope of the winch that drives the bulk head to rise and fall in a space where no cement flows, namely between the outer and inner pipes of the telescopic pipe. This avoids the continuous impact of cement flow on the traction rope and the connection between the traction rope and the bulk head, effectively reducing the failure rate of the bulk head, reducing the maintenance frequency, and increasing its service life.

[0017] This application uses a dust collection pipe installed at the top of the device to collect a small amount of cement that enters the outer cylinder of the bulk head. This cement rises to the top of the device with the backflow generated after entering the bulk truck, and is discharged and collected through the dust collection pipe, thus preventing cement from falling to the ground and polluting the environment.

[0018] This application guides the flow of cement in one direction through a guide plate, effectively covering the expansion and contraction folds on the inner wall of the telescopic pipe, preventing cement from being retained and adsorbed at the folds, and falling off with the vibration of the bulk head, thus polluting the environment.

[0019] The pressure balance pipe installed in the bulk loading head of this application can introduce some air along with the cement flow when the cement flows through the bulk loading head and enters the bulk truck, which effectively facilitates the dispersion of cement in the bulk truck.

[0020] Therefore, this utility model has a novel concept and ingenious design, which effectively reduces the failure rate of bulk filling heads, reduces the possibility of cement leakage from bulk filling heads, improves service life, and avoids environmental pollution. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a half-sectional view of the bulk loading head and telescopic tube in this utility model;

[0023] Figure 3 This is a top view of the bulk head of this utility model.

[0024] In the diagram: 1. Bulk head, 11. Outer cylinder of bulk head, 12. Inner cylinder of bulk head, 13. Connecting rod, 14. Traction rope fixing ring, 15. Pressure balance pipe, 16. Balance pipe fixing rod;

[0025] 2. Telescopic tube; 21. Telescopic tube outer tube; 22. Telescopic tube inner tube; 23. Guide plate;

[0026] End cap 3, dust collection pipe 31;

[0027] 4. Winch; 41. Traction rope; 42. Traction rope guide pulley; 43. Pulley support column;

[0028] 5. Installation platform; 6. Unloading pipe. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific preferred embodiments, but this does not limit the scope of protection of the present invention.

[0030] A cement bulk dispensing device, such as Figure 1 As shown, the system includes an installation platform 5, a winch 4, a bulk loading head 1, and a telescopic pipe 2. The winch 4 is mounted on the installation platform 5, the bulk loading head 1 is connected to the lower part of the telescopic pipe 2, and an end cap 3 seals the upper end of the telescopic pipe 2. The end cap 3 is mounted on the installation platform 5, and the telescopic pipe 2 passes through the installation platform 5. A pulley support column 43 is provided on the end cap 3, and a traction rope guide pulley 42 is provided at the top or upper part of the pulley support column 43. The traction rope 41 passes around the traction rope guide pulley 42 and enters the telescopic pipe 2. The installation platform 5 is provided with a pulley support column 43 with a traction rope guide pulley 42, located between the winch 4 and the end cap 3. This column straightens the traction ropes 41 from different angles from the direction of the end cap 3 into a parallel distribution and sends them to the winch 4. A dust collection pipe 31 is also provided on the end cap 3.

[0031] like Figure 2 The bulk head 1 and telescopic tube 2 shown are open at both ends. The bulk head 1 includes a coaxially sleeved inner cylinder 12 and outer cylinder 11. The outer cylinder 11 is conical. The upper end of the bulk head 1 is connected to the telescopic tube 2. The telescopic tube 2 is a coaxial sleeve. The lower end of the outer tube 21 of the telescopic tube is connected to the upper end of the outer cylinder 11 of the bulk head, and the lower end of the inner tube 22 of the telescopic tube is connected to the upper end of the inner cylinder 12 of the bulk head.

[0032] The inner wall of the telescopic inner tube 22 is provided with a flexible guide plate 23. The upper end of the guide plate 23 is connected to the inwardly constricted fold of the telescopic inner tube 22, and the lower end of the guide plate 23 is slightly inclined inward. The guide plate 23 covers the outwardly constricted fold below it, and the lower end of the guide plate 23 covers the upper end of its adjacent next layer of guide plates 23, so that the guide plate 23 achieves full coverage of the inner wall of the telescopic inner tube 22 along the cement flow direction. In this embodiment, the guide plate 23 is annular.

[0033] exist Figure 3In the bulk head, a connecting rod 13 is provided between the outer cylinder 11 and the inner cylinder 12. The two ends of the connecting rod 13 are respectively connected and fixed to the inner wall of the outer cylinder 11 and the outer wall of the inner cylinder 12. A traction rope fixing ring 14 is provided on the connecting rod 13. The traction rope 41 of the winch 4 passes through the outer tube 21 and the inner tube 22 of the telescopic tube and is connected to the traction rope fixing ring 14. There are three connecting rods 13, two of which are symmetrically arranged. The connecting rods 13 correspond one-to-one with the traction ropes 41. Each connecting rod 13 has a traction rope 41 connected to the winch 4 via the traction rope fixing ring 14, which is driven to lift and lower by the winch 4.

[0034] The bulk head 1 is provided with a pressure balance tube 15. The pressure balance tube 15 is hollow and open at both ends. The lower end of the pressure balance tube 15 is located at the central axis of the inner cylinder 12 of the bulk head and is fixed inside the inner cylinder 12 of the bulk head by a balance tube fixing rod 16. The upper end of the pressure balance tube 15 is bent horizontally and passes through the inner cylinder 12 and the outer cylinder 11 of the bulk head in sequence, and opens on the outer wall of the outer cylinder 11 of the bulk head.

[0035] This utility model is applied to the bulk transportation of cement. When the cement bulk truck moves to the bottom of the bulk head 1, the winch 4 starts and releases the traction rope 41. At this time, the telescopic pipe 2 begins to extend, and the deflection angle of the guide vane 23 begins to increase, eventually reaching 240°-255°. The lower end of each guide vane 23 can cover the upper end of the adjacent next layer of guide vane 23. The bulk head 1 descends vertically and falls into the feed inlet of the cement bulk truck. Then, under the control of the gate valve and the unloading switch valve of the cement bulk machine, the cement flows from the unloader into the unloading pipe 6, and flows through the inner pipe 22 of the telescopic pipe and the inner cylinder 12 of the bulk head, and finally enters the cement bulk machine. After the cement bulk truck is loaded, the gate valve and unloading switch valve of the cement bulk loading machine are closed, and no more cement is released. The winch 4 is started, and the traction rope 41 drives the bulk loading head 1 to rise. The telescopic pipe 2 retracts, and the deflection angle of the guide vane 23 gradually decreases as the inner tube 22 of the telescopic pipe retracts, eventually approaching 180°. After the bulk loading head 1 is raised to the high position, the loaded cement bulk truck can be driven away, and another empty cement bulk truck can be driven to the bottom of the bulk loading head 1 to carry out the next round of loading work.

[0036] In summary, based on the above structure and usage process, it can be seen that this utility model has a novel concept and ingenious design, effectively reducing the failure rate of the bulk filling head, effectively reducing the possibility of cement leakage from the bulk filling head, improving service life, and avoiding environmental pollution.

Claims

1. A cement bulk handling device located at the discharge end of a cement bulk handler to receive the discharge of a cement bulk handler, characterised in that: The cement bulk loading device comprises a mounting platform and a bulk head arranged on the mounting platform, the bulk head is open at both ends and comprises an inner cylinder and an outer cylinder coaxially sleeved, the outer cylinder is tapered, a connecting rod is arranged between the outer cylinder and the inner cylinder, both ends of the connecting rod are respectively connected and fixed to the inner wall of the outer cylinder and the outer wall of the inner cylinder, a traction rope fixing ring is arranged on the connecting rod, an extension tube is connected to the upper end of the bulk head, the extension tube is a coaxial sleeve tube, the lower end of the outer tube of the extension tube is connected to the upper end of the outer cylinder of the bulk head, and the lower end of the inner tube of the extension tube is connected to the upper end of the inner cylinder of the bulk head, a winch is arranged on the mounting platform, a traction rope of the winch passes between the outer tube and the inner tube of the extension tube and is connected to the traction rope fixing ring of the inner connecting rod of the bulk head. Flexible guide vanes are arranged on the inner wall of the inner tube of the extension tube, the upper end of the guide vane is connected to the inwardly wrinkled folds of the inner tube of the extension tube, the lower end of the guide vane is slightly inwardly inclined, the guide vane covers the outwardly wrinkled folds on the lower side thereof, and the lower end of the guide vane covers the upper end of the adjacent next layer of guide vanes, and the guide vanes fully cover the inner wall of the inner tube of the extension tube in the direction of the cement flow.

2. A cement bulk device according to claim 1, characterized in that: The connecting rods in the bulk head are at least symmetrically arranged in two rows, the connecting rods correspond to the traction ropes one by one, and the traction ropes are synchronously lifted under the driving of the winch.

3. A cement bulk delivery apparatus according to claim 2, characterised in that: The cement bulk loading device further comprises an end cover, the end cover seals the upper end of the outer tube of the extension tube, the upper end of the inner tube of the extension tube is connected to a discharge pipe of a discharger, the center of the end cover is provided with a hole, and the discharge pipe passes through the center hole of the end cover.

4. A cement bulk device according to claim 3, characterized in that: A pulley support column is arranged on the end cover, a traction rope guide pulley is arranged at the top end or upper part of the pulley support column, the traction rope passes around the traction rope guide pulley, the pulley support column on the end cover is arranged directly above the traction rope fixing ring, and the traction rope passes through a small hole arranged on the end cover.

5. A cement bulk device according to claim 4, characterized in that: A pulley support column with a traction rope guide pulley is arranged on the mounting platform and located between the winch and the end cover, so that the traction ropes from different angles of the end cover are straightened into parallel distribution and sent to the winch.

6. The cement bulk device according to claim 3, characterized in that: A dust collecting pipe is further arranged on the end cover.

7. The cement bulk device of claim 1, wherein: The guide vanes are annular or in the form of fish scale-shaped distribution.

8. The cement bulk device of claim 1, wherein: A pressure balance pipe is arranged in the bulk head, the pressure balance pipe is hollow and open at both ends, the lower end of the pressure balance pipe is located at the central axis of the inner cylinder of the bulk head and is fixed in the inner cylinder of the bulk head through a balance pipe fixing rod, the upper end of the pressure balance pipe is horizontally bent, sequentially passes through the inner cylinder of the bulk head and the outer cylinder of the bulk head, and is open at the outer wall of the outer cylinder of the bulk head.

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