Conveying device for reducing pta consumption

Abstract

The utility model relates to material conveying technical field, it is a kind of conveying device for reducing PTA consumption, including bunker, first horizontal pipe chain conveyor, second horizontal pipe chain conveyor, vertical pipe chain conveyor and material conveying pipeline.The utility model is reasonable and compact in structure, when vertical pipe chain conveyor breaks down and stops, dismounts and unloads baffle, shakes the annular chain of vertical pipe chain conveyor, drives the scraper on annular chain to sway, and PTA material on scraper shakes and starts to fall, flows into the upper end of material conveying pipeline from unloading port, so it can concentrate the PTA material in material conveying pipeline and collect, when vertical pipe chain conveyor fault is removed, the PTA material collected can be added to first horizontal pipe chain conveyor again through buffer feed inlet, the PTA material cleaned out after pipe chain conveyor is blocked is concentrated and collected and utilized again in the application, reduces PTA energy consumption, environmental pollution caused by PTA dust and artificial cleaning cost.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology and is a conveying device that reduces PTA consumption. Background Technology

[0002] The company's 240,000-ton / year biodegradable polyester project uses a tubular chain conveyor to transport raw material PTA (purified terephthalic acid). The tubular chain conveyor is located in a closed circular pipe. The chain drives the scrapers to move, and the PTA material is filled into the "hopper" formed between the scrapers. The chain is driven by the drive wheel to circulate in the pipe. The scrapers push the material forward along the pipe and finally discharge it at the outlet. After completing the pushing, the chain returns to the inlet through the return pipe to form a closed loop. It is particularly suitable for transporting PTA powdery materials that are prone to dust and have requirements for purity and explosion protection.

[0003] During the production process, false alarms from the tuning fork level gauge in the PTA silo and human error caused the tubular chain conveyor to stop repeatedly. When cleaning the PTA material inside the tubular chain conveyor, a large amount of PTA material fell to the ground and could not be used, resulting in a large waste of energy. The drift of PTA dust also pollutes the environment. Summary of the Invention

[0004] This invention provides a conveying device that reduces PTA consumption, overcoming the shortcomings of the prior art. It effectively solves the problems of large amounts of PTA material falling to the ground and becoming unusable during the cleaning of blockages in existing tubular chain conveyors, resulting in significant energy waste, and the environmental pollution caused by the dispersion of PTA dust.

[0005] The technical solution of this utility model is achieved through the following measures: A conveying device for reducing PTA consumption includes a silo, a first horizontal tubular chain conveyor, a second horizontal tubular chain conveyor, a vertical tubular chain conveyor, and a conveying pipeline. An inlet is located at the upper end of the silo. The first horizontal tubular chain conveyor is located at the lower left of the silo, with a first feed inlet on the upper left side and a first discharge outlet on the lower right side. The second horizontal tubular chain conveyor is located above the silo, with a second feed inlet on the upper left side. The lower right side of the tubular chain conveyor is provided with a second discharge port connected to the inlet. A vertical tubular chain conveyor is provided between the right side of the first horizontal tubular chain conveyor and the left side of the second horizontal tubular chain conveyor. The vertical tubular chain conveyor is used to convey the material from the first discharge port upward to the second inlet. The vertical tubular chain conveyor is provided with at least one discharge port at intervals on its side. A discharge baffle is installed on the outside of the vertical tubular chain conveyor corresponding to each discharge port. A buffer inlet is provided on the upper right side of the first horizontal tubular chain conveyor. A conveying pipeline is provided between each discharge port and the buffer inlet.

[0006] The following are further optimizations and / or improvements to the above-mentioned utility model technical solution: The vertical tubular chain conveyor mentioned above can be provided with one to ten discharge ports at intervals on its side. A collection tank is installed on the upper right side of the first horizontal tubular chain conveyor corresponding to the position of the buffer feed port. The lower end of the collection tank is provided with a buffer discharge port that is connected to the buffer feed port. A conveying pipeline is installed between each discharge port and the upper part of the collection tank.

[0007] The upper part of the above-mentioned conveying pipeline can be tilted to the right relative to the lower part, and each conveying pipeline is equipped with a receiving hopper that is larger at the top and smaller at the bottom.

[0008] A rotary feeder valve can be installed between the buffer outlet and the buffer inlet of the aforementioned collection tank.

[0009] The above may also include a controller, and a vibrating bar level gauge is provided in the silo. The vibrating bar level gauge is connected to the controller, and the controller is connected to the first horizontal tubular chain conveyor, the second horizontal tubular chain conveyor, and the vertical tubular chain conveyor respectively.

[0010] This utility model has a reasonable and compact structure. When the vertical tubular chain conveyor malfunctions and stops, the discharge baffle is removed, and the annular chain of the vertical tubular chain conveyor is shaken, causing the scraper on the annular chain to shake. The PTA material on the scraper shakes and begins to fall, flowing from the discharge port into the upper part of the conveying pipeline. This allows the PTA material in the conveying pipeline to be collected. When the vertical tubular chain conveyor malfunctions and is cleared, the collected PTA material can be added back into the first horizontal tubular chain conveyor through the buffer feed port. This application adds a discharge port and a conveying pipeline, which can collect and reuse the PTA material cleared after the tubular chain conveyor is blocked, reducing PTA energy consumption, environmental pollution caused by PTA dust, and manual cleaning costs. Attached Figure Description

[0011] Appendix Figure 1 These are schematic diagrams of the main structure of embodiments one to five of this utility model.

[0012] Appendix Figure 2 This is a partial sectional view of the vertical tubular chain conveyor in embodiments one to five of this utility model.

[0013] Appendix Figure 3 This is a partial cross-sectional view of the vertical tubular chain conveyor in embodiments one to five of this utility model.

[0014] Appendix Figure 4 This is a schematic diagram of the main cross-sectional structure of the receiving hopper in embodiments three to five of this utility model.

[0015] Appendix Figure 5 This is a schematic diagram of the circuit structure of Embodiment 5 of this utility model.

[0016] The codes in the attached diagram are as follows: 1 is the hopper, 2 is the first horizontal tubular chain conveyor, 3 is the second horizontal tubular chain conveyor, 4 is the vertical tubular chain conveyor, 5 is the conveying pipeline, 6 is the discharge port, 7 is the discharge baffle, 8 is the hinge, 9 is the buckle, 10 is the handle, 11 is the collection tank, 12 is the receiving hopper, 13 is the rotary feed valve, and 14 is the vibrating rod level gauge. Detailed Implementation

[0017] This utility model is not limited to the following embodiments, and the specific implementation method can be determined according to the technical solution of this utility model and the actual situation.

[0018] In this utility model, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as the positional relationships of front, back, top, bottom, left, and right, which are based on the instructions attached. Figure 1 The orientation of the layout is determined by the direction of the map.

[0019] The present invention will be further described below with reference to the embodiments and accompanying drawings: Example 1: As shown in the attached document Figure 1 , 2 As shown in Figure 3, the conveying device for reducing PTA consumption includes a silo 1, a first horizontal tubular chain conveyor 2, a second horizontal tubular chain conveyor 3, a vertical tubular chain conveyor 4, and a conveying pipeline 5. The silo 1 has an inlet at its upper end. The first horizontal tubular chain conveyor 2 is located at the lower left of the silo 1. The first horizontal tubular chain conveyor 2 has a first feed inlet on its upper left side and a first discharge outlet on its lower right side. The second horizontal tubular chain conveyor 3 is located above the silo 1. The second horizontal tubular chain conveyor 3 has a second feed inlet on its upper left side and a second discharge outlet on its lower right side. A second discharge port connected to the inlet is provided. A vertical tubular chain conveyor 4 is provided between the right side of the first horizontal tubular chain conveyor 2 and the left side of the second horizontal tubular chain conveyor 3. The vertical tubular chain conveyor 4 is used to convey the material from the first discharge port upward to the second inlet. At least one discharge port 6 is provided at intervals on the side of the vertical tubular chain conveyor 4. A discharge baffle 7 is installed on the outside of the vertical tubular chain conveyor 4 corresponding to the position of each discharge port 6. A buffer inlet is provided on the upper right side of the first horizontal tubular chain conveyor 2. A conveying pipeline 5 is provided between each discharge port 6 and the buffer inlet.

[0020] Depending on the requirements, the discharge port 6 can be a maintenance port for the vertical tubular chain conveyor 4, or it can be opened at the bottom of the vertical tubular chain conveyor 4. The lower end of the conveying pipeline 5 can be connected to the buffer feed port or to the material collector. One side of the discharge baffle 7 can be hinged to the outside of the vertical tubular chain conveyor 4 using a known hinge 8, and the other side of the discharge baffle 7 can be installed together using a known buckle 9 (such as a bag buckle). This facilitates the opening and closing of the discharge port 6. To facilitate the opening of the discharge baffle 7, two handles 10 are fixed on the side of the discharge baffle 7. The buffer feed port is located between the first feed port and the first discharge port. When the vertical tubular chain conveyor 4 malfunctions and stops, the handles 10 can be removed. Open the discharge baffle 7, shake the annular chain of the vertical tubular chain conveyor 4, causing the scraper on the annular chain to shake. The PTA material on the scraper shakes and begins to fall, flowing from the discharge port 6 into the upper end of the conveying pipeline 5. This can collect the PTA material in the conveying pipeline 5. When the vertical tubular chain conveyor 4 is cleared of the malfunction, the collected PTA material can be added back to the first horizontal tubular chain conveyor 2 through the buffer feed port. This application adds the discharge port 6 and the conveying pipeline 5, which can collect the PTA material cleared after the tubular chain conveyor is blocked and reuse it, reducing PTA energy consumption, environmental pollution caused by PTA dust, and manual cleaning costs.

[0021] The aforementioned conveying device for reducing PTA consumption can be further optimized and / or improved according to actual needs: Example 2: As an optimization of the above examples, as shown in the appendix. Figure 1 As shown, the vertical tubular chain conveyor 4 has one to ten discharge ports 6 spaced up and down on its side. The first horizontal tubular chain conveyor 2, corresponding to the position of the buffer feed port, has a collection tank 11 installed on the upper right side. The lower end of the collection tank 11 has a buffer discharge port that is connected to the buffer feed port. Each discharge port 6 is connected to the upper part of the collection tank 11 by a conveying pipeline 5.

[0022] According to the requirements, the vertical tubular chain conveyor 4 is a known technology, such as the vertical chassis structure tubular chain conveyor disclosed in Chinese patent document CN213169869U, or the second vertical tubular chain conveyor in a PTA powder chain plate conveying system disclosed in Chinese patent document CN207985989U. The conveying height of the vertical tubular chain conveyor 4 can be set to multiple heights as needed. Multiple vertical tubular chain conveyors 4 are connected sequentially from bottom to top. The feed end of the lower vertical tubular chain conveyor 4 is located on the upper side of the lower part, and the discharge end is located on the lower side of the upper part, thereby realizing the conveying of PTA materials at different heights. In this embodiment, there are two vertical tubular chain conveyors 4, each of which is installed on the installation platform, with a discharge port 6 and a feed port 6. All are located close to the installation platform, and the height of the discharge port 6 can be higher than that of the feed port. This makes it easier for operators to open and close the discharge baffle 7 on the installation platform. Each vertical tubular chain conveyor 4 has a discharge port 6 at the bottom of its return pipe and conveyor belt. When the vertical tubular chain conveyor 4 malfunctions and stops, the discharge baffle 7 is removed, and the ring chain of the vertical tubular chain conveyor 4 is shaken. This causes the scraper on the ring chain to shake, and the PTA material on the scraper begins to fall after shaking. It flows from the discharge port 6 into the upper end of the conveying pipeline 5, and finally into the collection tank 11 through the conveying pipeline 5. This allows the PTA material in the vertical tubular chain conveyor 4 to be stored, which is convenient for the inspection and maintenance of the vertical tubular chain conveyor 4. In order to observe the condition inside the conveyor belt, an observation window can be installed on the conveyor belt above the discharge port 6.

[0023] Example 3: As an optimization of the above examples, as shown in the appendix. Figure 1 , 4 As shown, the upper part of the conveying pipeline 5 is inclined to the right relative to the lower part, and each conveying pipeline 5 is provided with a receiving hopper 12 that is larger at the top and smaller at the bottom.

[0024] According to the requirements, the receiving hopper 12 is a funnel shape with a larger top and a smaller bottom. By setting up the receiving hopper 12, the PTA material flowing out of the discharge port 6 can all enter the receiving hopper 12, thereby avoiding the material from scattering after being discharged from the discharge port 6 and preventing PTA material from polluting the environment. The upper part of the conveying pipeline 5 is inclined to the right relative to the lower part, so that the PTA material can flow into the receiving hopper 12 along the conveying pipeline 5 under the action of gravity after entering the upper part of the conveying pipeline 5, which can reduce the modification cost.

[0025] Example 4: As an optimization of the above examples, as shown in the appendix. Figure 1 As shown, a rotary feeder valve 13 is installed between the buffer outlet and the buffer inlet of the collection tank 11.

[0026] According to the requirements, a feed hopper is provided on the upper left side of the first horizontal tubular chain conveyor 2. A feeding port connected to the first feed inlet is provided at the lower end of the feed hopper. Existing known rotary feed valves 13 are installed between the first feed inlet and the feeding port, and between the buffer discharge port and the buffer feed inlet of the collection tank 11. The rotary feed valve 13 installed between the buffer discharge port and the buffer feed inlet of the collection tank 11 can discharge the PTA material in the vertical tubular chain conveyor 4 into the collection tank 11 when the vertical tubular chain conveyor 4 fails. The collection tank 11 can store the PTA material cleaned out when the vertical tubular chain conveyor 4 fails. After the vertical tubular chain conveyor 4 is repaired, the flow rate of the material at the buffer discharge port can be adjusted according to the operating status of the vertical tubular chain conveyor 4. The rotary feed valve 13 installed between the first feed inlet and the feeding port can adjust the conveying capacity of the first horizontal tubular chain conveyor 2.

[0027] Example 5: As an optimization of the above examples, as shown in the appendix. Figure 1 , 5 As shown, it also includes a controller. The hopper 1 is equipped with a vibrating bar level gauge 14, which is connected to the controller. The controller is connected to the first horizontal tubular chain conveyor 2, the second horizontal tubular chain conveyor 3, and the vertical tubular chain conveyor 4 respectively.

[0028] Based on the requirements, the controller uses existing known technologies, such as the SCY series light bar indicator digital display control alarm, and the vibrating rod level gauge 14 uses existing known technologies, such as the Tube vibrating rod level switch. The vibrating rod level gauge 14 is installed on the inner side of the upper part of the silo 1. Replacing the existing tuning fork level gauge in the silo 1 with the vibrating rod level gauge 14 can reduce the number of false alarms of the tuning fork level gauge in the PTA silo 1, thereby effectively reducing the number of frequent start-stop cycles of the tubular chain conveyor and achieving the goal of safe and stable operation of the equipment.

[0029] This application eliminates false alarms from the PTA silo level gauge that cause interlocking shutdowns of the tubular chain conveyor, resolving the problem of frequent start-stop cycles for the conveyor. This solution significantly improves the energy efficiency and operational stability of PTA conveying equipment and is suitable for the chemical and chemical fiber industries.

[0030] The above technical features constitute various embodiments of this utility model, which have strong adaptability and optimal implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A conveying device for reducing PTA consumption, characterized in that... The system includes a hopper, a first horizontal tubular chain conveyor, a second horizontal tubular chain conveyor, a vertical tubular chain conveyor, and a conveying pipeline. The hopper has an inlet at its upper end. The first horizontal tubular chain conveyor is located on the lower left side of the hopper, with a first feed inlet on its upper left side and a first discharge outlet on its lower right side. The second horizontal tubular chain conveyor is located above the hopper, with a second feed inlet on its upper left side and a second discharge outlet on its lower right side connected to the inlet. At the discharge port, a vertical tubular chain conveyor is provided between the right side of the first horizontal tubular chain conveyor and the left side of the second horizontal tubular chain conveyor. The vertical tubular chain conveyor is used to transport the material from the first discharge port upward to the second inlet. The vertical tubular chain conveyor has at least one discharge port spaced vertically on its side. A discharge baffle is installed on the outside of the vertical tubular chain conveyor corresponding to each discharge port. A buffer inlet is provided on the upper right side of the first horizontal tubular chain conveyor. A conveying pipeline is provided between each discharge port and the buffer inlet.

2. The conveying device for reducing PTA consumption according to claim 1, characterized in that... The vertical tubular chain conveyor has one to ten discharge ports spaced vertically on its side. A collection tank is installed on the upper right side of the first horizontal tubular chain conveyor corresponding to the position of the buffer feed port. The lower end of the collection tank is provided with a buffer discharge port that is connected to the buffer feed port. A conveying pipeline is installed between each discharge port and the upper part of the collection tank.

3. The conveying device for reducing PTA consumption according to claim 2, characterized in that... The upper part of the conveying pipeline is inclined to the right relative to the lower part, and each conveying pipeline is equipped with a receiving hopper that is larger at the top and smaller at the bottom.

4. The conveying device for reducing PTA consumption according to claim 2 or 3, characterized in that... A rotary feed valve is installed between the buffer discharge port and the buffer inlet of the collection tank.

5. The conveying device for reducing PTA consumption according to claim 1, 2, or 3, characterized in that... It also includes a controller, and the hopper is equipped with a vibrating bar level gauge. The vibrating bar level gauge is connected to the controller, and the controller is connected to the first horizontal tubular chain conveyor, the second horizontal tubular chain conveyor, and the vertical tubular chain conveyor respectively.

6. The conveying device for reducing PTA consumption according to claim 4, characterized in that... It also includes a controller, and the hopper is equipped with a vibrating bar level gauge. The vibrating bar level gauge is connected to the controller, and the controller is connected to the first horizontal tubular chain conveyor, the second horizontal tubular chain conveyor, and the vertical tubular chain conveyor respectively.

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