Conveying chute for cement bulk loader

Abstract

A conveying chute for a cement bulk machine belongs to the cement technology, is arranged between a gate valve for feeding and a discharger for discharging, and comprises a chute body and discharging switch valves at the feeding end and the discharging end of the chute body, the discharging end of the chute body is provided with an air inlet and is connected with a reverse blowing device, the feeding end of the chute body is provided with an air outlet, and the discharging end of the chute body is connected with the reverse blowing device. And the air inlet and the air outlet are formed between the unloading switch valves at the two ends of the chute body. The device is novel in conception, ingenious in design, capable of effectively avoiding retention and deposition of cement, good in automation effect, simple and practical.

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] Cement bulk loading machines mainly include equipment such as feeders, gate valves, discharge switch valves, conveying chutes, unloaders, material level control devices, and electrical control cabinets. Among these, the conveying chutes, which receive feed from the cement silos and connect to the bulk loading heads for loading onto trucks, are the key components of the conveying process. However, currently used conveying chutes have various problems: after the discharge switch valve is closed, a small amount of cement always remains near the discharge switch valve and inside the conveying chutes. Although the amount of cement residue is small, it easily adheres to corners. If not cleaned in time, it will absorb moisture from the air and clump together, preventing further cement deposition and thus affecting the normal transfer of cement through the conveying chutes. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model proposes a conveying chute for a cement bulk loading machine, which effectively avoids cement stagnation and accumulation.

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

[0006] A conveying chute for a cement bulk loading machine is installed between a feeding gate valve and a discharge unloader. It includes a chute body and discharge switch valves at the feeding end and the discharge end of the chute body. In this utility model, the discharge end of the chute body is provided with an air inlet connected to a back-blowing device, and the feeding end of the chute body is provided with an air outlet. Both the air inlet and the air outlet are located between the discharge switch valves at both ends of the chute body.

[0007] In this utility model, the air inlet is a conical opening that is smaller at the top and larger at the bottom and is arranged at an inclination. The end with a larger flow surface is opened on the inclined chute body, and the end with a smaller flow surface is connected to a back-blowing device. The air inlet direction is similar to the feeding direction of the conveying inclined chute. The air outlet direction is opposite to the upward direction of the feeding of the conveying inclined chute.

[0008] Furthermore, the backflushing device is a unidirectional fan.

[0009] Furthermore, both the air inlet and outlet are equipped with filters to prevent cement from entering the backflushing device and to prevent cement from escaping through the air outlet and polluting the environment.

[0010] Furthermore, a dust collection bag is provided at the end of the air outlet. The dust collection bag is a breathable cloth bag.

[0011] Furthermore, the filters installed at the air inlet and outlet are flush with the inner wall of the inclined trough, effectively reducing corners during cement transportation and minimizing the possibility of cement adsorption and deposition.

[0012] Furthermore, the unidirectional fan is controlled by a time delay switch, and the unloading switch valve is controlled by a cylinder, with the time delay switch and the cylinder working together for adjustment.

[0013] In this invention, a pipe vibrator is installed in the middle section of the inclined trough body to apply periodic impact vibration to the inclined trough body, thereby preventing cement from adhering to the inner wall of the inclined trough body.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] This application achieves the blowing of retained cement by blowing air in the reverse direction into the conveying chute, creating a short-term flow field in the conveying chute to remove cement stuck in the corners and prevent it from accumulating for a long time.

[0016] The angle settings of the air inlet and air outlet in this application ensure that the conveying chute will not have an adverse effect on the normal transportation of cement.

[0017] The linkage control of the air inlet and unloading switch valves in this application facilitates the automated operation of backflushing, avoids the additional manpower consumption caused by manual operation, and also avoids the errors that may be caused by manual operation.

[0018] The application utilizes a pipe vibrator and backflushing mechanism installed in the conveying chute to effectively prevent cement from stagnating and depositing.

[0019] Therefore, this utility model has a novel concept and ingenious design, which can effectively avoid cement residue and deposition, has good automation effect, and is simple and practical. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] In the diagram: 1. Inclined chute body; 2. Feeder; 3. Gate valve; 4. Discharge switch valve; 5. Cylinder; 6. Discharger; 7. Air inlet; 8. One-way fan; 9. Air outlet; 10. Dust collection bag; 11. Pipeline vibrator. Detailed Implementation

[0022] 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.

[0023] A conveying chute for a cement bulk loading machine, such as Figure 1 As shown, a gate valve 3 is installed between the feeder 2 and the unloader 6. The conveying chute includes a chute body 1. A discharge switch valve 4 is installed at the feed end of the chute body 1, i.e., the connection between the chute body 1 and the feeder 2. A discharge switch valve 4 is installed at the discharge end of the chute body 1, i.e., the connection between the chute body 1 and the unloader 6. A cylinder 5 is installed at both discharge switch valves 4. The discharge switch valves 4 are driven by the cylinders 5 respectively, and the two cylinders 5 are adjusted synchronously.

[0024] An air inlet 7 is provided at the discharge end of the inclined chute body 1. The air inlet 7 is located on the other side of the unloader 6 relative to the discharge end unloading switch valve 4. It is located above the inclined chute body 1 and is a cone-shaped opening that is smaller at the top and larger at the bottom and is arranged at an inclination. The end with the larger flow surface is opened on the inclined chute body 1, and the end with the smaller flow surface is connected to a unidirectional fan 8. The air inlet 7 is in the same direction as the feeding direction of the conveying chute. A filter screen is provided at the air inlet 7. The filter screen is located at the end with the larger flow surface of the air inlet 7 and is flush with the inner wall of the inclined chute body 1.

[0025] An air outlet 9 is provided at the feed end of the inclined chute body 1. The air outlet 9 is located above the feeder 2 relative to the feed end unloading switch valve 4. The air outlet 9 is located in the opposite direction of the feeding of the inclined chute. The air outlet 9 is equipped with a filter screen, which is flush with the inner wall of the inclined chute body 1. A dust collection bag 10 is provided at the tail end of the air outlet 9. The dust collection bag 10 is a breathable cloth bag.

[0026] A pipe vibrator 11 is installed in the middle section of the inclined chute body 1 to periodically apply impact vibration to the inclined chute body 1, so as to prevent cement from adhering to the inner wall of the inclined chute body 1.

[0027] In this embodiment, the unidirectional fan 8 is controlled by a time-delay switch, which is linked to the cylinder 5 of the unloading switch valve 4. When unloading is completed, the unloading switch valves 4 at both ends of the inclined chute body 1 close simultaneously, and the unidirectional fan 8 starts and continues for a period of time, rapidly blowing dry air into the unloading inclined chute from the air inlet 7. The air passes through the entire inclined chute body 1 and is discharged from the air outlet 9. During this process, the air inlet creates an airflow within the channel of the inclined chute body 1, which then turns at the unloading switch valves 4 at both ends of the inclined chute body 1 to form turbulence, disturbing any remaining small amount of cement. After a period of time or when the unloading switch valves 4 are restarted, the unidirectional fan 8 stops, and the inclined chute body 1 can continue to transport cement. In conjunction with this, a pipe vibrator 11 installed on the outer wall of the inclined chute body 1 can apply periodic impact vibration to the inclined chute body 1 as needed.

[0028] 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, which can effectively avoid cement retention and deposition, has good automation effect, and is simple and practical.

Claims

1. A conveying chute for a cement bulk loading machine, disposed between a feeding gate valve and a discharge unloader, comprising a chute body, and discharge switch valves at the feeding end and discharge end of the chute body, characterized in that: The discharge end of the inclined chute body is provided with an air inlet and connected to a back-blowing device, and the feed end of the inclined chute body is provided with an air outlet. Both the air inlet and the air outlet are located between the unloading switch valves at both ends of the inclined chute body.

2. The conveying chute according to claim 1, characterized in that: The air inlet is a tapered opening that is smaller at the top and larger at the bottom and is arranged at an angle. The end with a larger flow surface is opened on the inclined chute body, and the end with a smaller flow surface is connected to the back-blowing device. The air inlet direction is similar to the feeding direction of the conveying inclined chute. The air outlet direction is opposite to the upward direction of the feeding of the conveying inclined chute.

3. The conveying chute according to claim 2, characterized in that: The backflush device is a unidirectional fan.

4. The conveying chute according to claim 3, characterized in that: Both the air inlet and the air outlet are equipped with filters.

5. The conveying chute according to claim 4, characterized in that: The filters installed at the air inlet and air outlet are flush with the inner wall of the inclined groove body.

6. The conveying chute according to claim 1, characterized in that: A dust collection bag is also provided at the end of the air outlet. The dust collection bag is a breathable cloth bag.

7. The conveying chute according to claim 1, characterized in that: A pipe vibrator is installed in the middle section of the inclined trough body.

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