Pressurizing device for a vulcanization press

Abstract

The utility model provides a vulcanizing machine pressurizing device relates to coal mine downhole vulcanization operation technical field, and especially relates to the pressurization technical field of belt vulcanization operation. A vulcanizing machine pressurizing device, including water supply pipeline, connecting hose and pressurizing gun, the pressurizing gun includes the female pipe, the gun head and pressure gauge, and the pressure gauge and the gun head set up on the female pipe, and the female pipe is connected with water supply pipeline through the connecting hose, and the connecting place of water supply pipeline and connecting hose is provided with main water supply valve, and the connecting place of female pipe and connecting hose is provided with the connector, and is provided with the pressure relief valve on the connector. The utility model discloses the technical scheme overcomes the problem of the existing technology when removing the connecting hose, and the hose under pressure influences the operation safety.

Description

Technical Field

[0001] This utility model relates to the field of underground vulcanization operation technology in coal mines, and more particularly to the field of pressurization technology for conveyor belt vulcanization operation, specifically referring to a pressurization device for a vulcanizing machine. Background Technology

[0002] Belt conveyors are characterized by long-distance, high-capacity, and continuous transportation, making them a widely used primary conveying equipment in industries such as metallurgy, power, chemical, and coal in China. With the widespread application of belt conveyors, the requirements for the quality of belt conveyor joints are becoming increasingly stringent. Vulcanized joints, with their advantages of high strength and long service life, are widely adopted.

[0003] In underground coal mines, due to time constraints and heavy workloads, pressurization and water cooling are frequently employed during the vulcanization process to shorten the vulcanization time and ensure the quality of the conveyor belt joints. This involves directly pressurizing and cooling the belt using the water pressure from the underground water supply pipeline. After the pressurization, heating, and insulation stages of the vulcanization process are completed, and the pressure-holding and cooling stages begin, the flexible hose connecting the underground water supply pipeline and the pressurizing machine must be removed. Simultaneously, the pressure of the vulcanizing machine must be maintained at 1.8 ± 0.2 MPa during hose removal. Therefore, removing the connecting hose under pressure poses a safety hazard, as it increases the risk of injury due to excessive hose pressure.

[0004] Therefore, there is a need for a vulcanizing machine pressurization device that can ensure the vulcanization quality of the conveyor belt joint while allowing for the safe removal of the connecting hose, thus ensuring operational safety. Utility Model Content

[0005] The main purpose of this utility model is to provide a pressurizing device for a vulcanizing machine to solve the problem that the pressurized hose affects operational safety when the hose is removed in the existing vulcanizing machine pressurizing device.

[0006] To achieve the above objectives, this utility model provides a pressurizing device for a vulcanizing machine, including a water supply pipeline, a connecting hose, and a pressurizing gun. The pressurizing gun includes a main pipe, a gun head, and a pressure gauge. The pressure gauge and the gun head are mounted on the main pipe. The main pipe is connected to the water supply pipeline through the connecting hose. A main water supply valve is provided at the connection between the water supply pipeline and the connecting hose. A connector is provided at the connection between the main pipe and the connecting hose, and a pressure relief valve is provided on the connector.

[0007] Furthermore, a connecting device is provided at the connection between the nozzle and the main tube, and a nozzle control valve is provided on the connecting device.

[0008] Furthermore, there are four gun heads, which are arranged side by side on the top of the connecting device.

[0009] Furthermore, a pressure gauge control valve is installed at the connection between the pressure gauge and the main pipe.

[0010] Furthermore, an inlet control valve is installed at the connection between the main pipe and the connector.

[0011] Furthermore, a pressure gun drain valve is installed on the end of the main pipe opposite to the inlet control valve.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model provides a pressure relief valve and a water inlet control valve between the connecting hose and the main pipe, so that when the vulcanizing machine pressurizing device is disconnected from the hose, it can maintain the pressurization state of the vulcanizing machine and at the same time release the pressure of the hose, so that the hose is in a pressureless state when it is disconnected, thus achieving safe and convenient disconnection of the connecting hose.

[0014] This utility model is equipped with multiple nozzles arranged in parallel. These nozzles are connected to the main pipe via a connecting device, enabling the vulcanizing machine to quickly enter the vulcanizing pressure holding and water cooling stage, thereby improving work efficiency. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0016] Figure 1 A schematic diagram of the overall structure of this utility model is shown.

[0017] The reference numerals in the above figures are as follows:

[0018] 1. Water supply pipeline; 10. Main water supply valve; 2. Connecting hose; 20. Pressure relief valve; 21. Connector; 3. Pressure gun; 31. Main pipe; 32. Gun head; 33. Pressure gauge; 34. Inlet control valve; 35. Pressure gun drain valve; 36. Pressure gauge control valve; 37. Gun head control valve; 38. Connecting device. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] like Figure 1The vulcanizing machine pressurization device shown includes a water supply pipeline 1, a connecting hose 2, and a pressurizing gun 3. The pressurizing gun 3 includes a main pipe 31, a gun head 32, and a pressure gauge 33. The pressure gauge 33 and the gun head 32 are mounted on the main pipe 31. The main pipe 31 is connected to the water supply pipeline 1 via the connecting hose 2. A main water supply valve 10 is installed at the connection between the water supply pipeline 1 and the connecting hose 2. A connector 21 is installed at the connection between the main pipe 31 and the connecting hose 2, and a pressure relief valve 20 is installed on the connector 21. This vulcanizing machine pressurization device is suitable for use when the water pressure in a coal mine is not lower than 1.6 kPa. When disconnecting the connecting hose 2, the main water supply valve 10 is closed and the pressure relief valve 20 is opened to release the pressure in the connecting hose 2, ensuring operational safety.

[0021] Specifically, a connecting device 38 is provided at the connection between the nozzle 32 and the main tube 31, and a nozzle control valve 37 is provided on the connecting device 38.

[0022] Specifically, there are four nozzles 32, which are arranged side by side on the top of the connecting device 38. The connecting device 38 is a multi-port device, through which multiple nozzles 32 are arranged side by side on the main pipe 31, which greatly increases the speed at which the vulcanizer enters the pressure-holding water-cooling stage and improves working efficiency.

[0023] Specifically, a pressure control valve 36 is installed at the connection between pressure gauge 33 and main pipe 31. During the pressurization, heating and heat preservation process of vulcanization, when the vulcanizing machine temperature is 100℃-120℃, the pressure gauge 33 reading is not less than 1.0 MPa, and when the vulcanizing machine temperature is 145℃-150℃, the pressure gauge 33 reading is maintained at 1.8±0.2 MPa.

[0024] Specifically, an inlet control valve 34 is provided at the connection between the main pipe 31 and the connector 21.

[0025] Specifically, a pressure gun drain valve 35 is provided at the end of the main pipe 31 opposite to the inlet control valve 34. The water pressure in the pressure gun 3 is adjusted by the inlet control valve 34 and the pressure gun drain valve 35.

[0026] The specific working state of the vulcanizing machine pressurization device provided by this utility model is as follows:

[0027] First, a connecting hose 2 is installed between the water supply pipe 1 and the main pipe 31 of the pressure gun 3. The four nozzles 32 of the pressure gun 3 are then connected to the pressure plate of the vulcanizing machine. After connection, the pressure gun drain valve 35, the main water supply valve 10, and the inlet control valve 34 are opened in sequence to release air and waterproof the main pipe 31 of the pressure gun 3. Then, the pressure gun drain valve 35 is closed, and the pressure gauge control valve 36 is opened. The water pressure is adjusted according to the temperature of the vulcanizing machine through the inlet control valve 34 and the pressure gun drain valve 35 to ensure that the pressure gauge 33 reading is not less than 1.0 MPa when the vulcanizing machine temperature is 100℃-120℃, and 1.8±0.2 MPa when the vulcanizing machine temperature is 145℃-150℃, until the vulcanizing heating and pressurizing and heat preservation and pressure holding processes are completed.

[0028] After the vulcanization heating and pressurization and heat preservation and pressure holding processes are completed, the main water supply valve 10 and the water inlet control valve 34 are closed in sequence to maintain the pressure of the vulcanizing machine at 1.8±0.2Mpa; then the pressure relief valve 20 is opened to completely depressurize the connecting hose 2. After the connecting hose 2 is in a depressurized state, the connection between the connecting hose 2 and the main pipe 31 of the pressurizing gun 3 is disconnected. The connecting hose 2 is removed or connected to another pressurizing device as needed to continue the pressurization and cooling process.

[0029] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A pressurizing device for a vulcanizing machine, characterized in that, The device includes a water supply pipeline, a connecting hose, and a pressure gun. The pressure gun includes a main pipe, a nozzle, and a pressure gauge. The pressure gauge and nozzle are mounted on the main pipe. The main pipe is connected to the water supply pipeline via the connecting hose. A main water supply valve is installed at the connection between the water supply pipeline and the connecting hose. A connector is installed at the connection between the main pipe and the connecting hose, and a pressure relief valve is installed on the connector.

2. The vulcanizing pressurization device according to claim 1, characterized in that, A connecting device is provided at the connection between the nozzle and the main tube, and a nozzle control valve is provided on the connecting device.

3. The pressurizing device for a vulcanizing machine according to claim 2, characterized in that, The gun head has four parts, which are arranged side by side on the top of the connecting device.

4. The pressurizing device for a vulcanizing machine according to claim 1, characterized in that, A pressure gauge control valve is installed at the connection between the pressure gauge and the main pipe.

5. The pressurizing device for a vulcanizing machine according to claim 1, characterized in that, A water inlet control valve is installed at the connection between the main pipe and the connector.

6. The pressurizing device for a vulcanizing machine according to claim 5, characterized in that, A pressure gun drain valve is installed at the end of the main pipe opposite to the water inlet control valve.

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