Carbon black conveying equipment and conveying method

Abstract

The present invention discloses a carbon black conveying device and a conveying method, and belongs to the technical field of conveying equipment. It includes a feed bin, a pressure tank connected to the feed bin, a pressure stabilizing tank connected to the pressure tank, a receiving bin connected to the pressure tank, and a conveying pipeline for connecting the pressure tank and the receiving bin. The number of feed bins is several, and a screw conveyor is provided between the feed bin and the pressure tank, and the screw conveyor is a bidirectional screw conveyor; the screw conveyor is provided with several feed ports corresponding to the feed bin along the conveying direction, and the discharge port of the screw conveyor is connected to the feed port of the pressure tank; the feed bin is connected to a first exhaust pipe, and the pressure tank is connected to a second exhaust pipe, and the first exhaust pipe is connected to the second exhaust pipe, and valves are provided on the first exhaust pipe and the second exhaust pipe. The present invention is applied to carbon black conveying, and solves the problem of low conveying efficiency when the existing conveying system is used for conveying carbon black mixed modified multi-component ingredients, and has the characteristics of high conveying efficiency, simple operation, and high production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of conveying equipment, and in particular relates to a carbon black conveying equipment and a conveying method. Background Art

[0002] Carbon black is an important industrial raw material with great utilization value. At the same time, carbon black is also a Class II carcinogen announced by the World Health Organization's International Agency for Research on Cancer. Therefore, the transportation of carbon black requires a closed transportation system to avoid environmental pollution caused by carbon black leakage.

[0003] Chinese patent CN204702213U discloses an environmentally friendly high-speed closed conveying system, which includes a feed bin, a pressure feeding bin, a pressure sensor, a carbon black storage tank, an air pressure control device, a cold dryer gas storage tank, a gas compressor, a conveying pipeline and a recovery system; the recovery system includes a carbon black weighing device and a carbon black feeding and dust removal device; the conveying system realizes high-speed closed conveying, carbon black closed feeding, recovery and dust removal.

[0004] However, the above-mentioned conveying system is only applicable to the conveying of carbon black, and has low conveying efficiency when used for conveying carbon black mixed modified multi-component ingredients. Summary of the invention

[0005] In view of the shortcomings of the prior art, the main technical problem to be solved by the present invention is to overcome the problem of low conveying efficiency of the existing conveying system when used for conveying carbon black mixed modified multi-component ingredients, and to propose a carbon black conveying equipment and conveying method with high conveying efficiency, simple operation and high production efficiency.

[0006] In order to solve the technical problem, the technical solution adopted by the present invention is:

[0007] The present invention provides a carbon black conveying device, comprising a feed bin, a pressure tank connected to the feed bin, a pressure-stabilizing tank connected to the pressure tank, a receiving bin connected to the pressure tank, and a conveying pipeline for connecting the pressure tank and the receiving bin, wherein the number of the feed bins is several, a screw conveyor is provided between the feed bin and the pressure tank, and the screw conveyor is a bidirectional screw conveyor; the screw conveyor is provided with several feed ports corresponding to the feed bin along the conveying direction, and the discharge port of the screw conveyor is connected to the feed port of the pressure tank; the feed bin is connected to a first exhaust pipe, the pressure tank is connected to a second exhaust pipe, the first exhaust pipe is communicated with the second exhaust pipe, and valves are provided on the first exhaust pipe and the second exhaust pipe.

[0008] Preferably, it also includes a gas compressor, and the pressure-stabilizing tank is connected to the gas compressor; the pressure-stabilizing tank and the pressure tank are connected through an air pipe, a valve is provided on the air pipe, and pressure remote sensors are provided on the top of the pressure-stabilizing tank and the air pipe; the air pipe includes a first air pipe, a second air pipe, a third air pipe and a fourth air pipe arranged in sequence from top to bottom; the air inlet of the first air pipe is connected to the top of the pressure-stabilizing tank, and the air outlet of the first air pipe is connected to the top of the pressure tank; the air inlet of the second air pipe is connected to the upper part of the pressure-stabilizing tank, and the air outlet of the second air pipe is connected to the bottom of the pressure tank; the air inlet of the third air pipe is connected to the lower part of the pressure-stabilizing tank, and the air outlet of the third air pipe is connected to one end of the conveying pipeline close to the discharge port of the pressure tank; the air inlet of the fourth air pipe is connected to the bottom of the pressure-stabilizing tank, and the air outlet of the fourth air pipe is connected to the middle of the conveying pipeline.

[0009] Preferably, the pressure remote sensor disposed on the top of the pressure stabilizing tank is connected to the gas compressor via a PLC.

[0010] Preferably, a spiral stirrer for stirring materials and a transmission machine for driving the spiral stirrer to rotate are provided on the top of the feeding bin; and a material discharge vibrator is provided in the receiving bin.

[0011] Preferably, the feed bin outlet, the pressure tank feed port, the pressure tank outlet, and the receiving bin outlet are all provided with manual knife gate valves and electric rotary valves.

[0012] Preferably, the feed bin, the pressure tank, and the receiving bin are all provided with an upper material level meter and a lower material level meter, and the upper material level meter is located above the lower material level meter.

[0013] Preferably, it also includes a recovery device, which is located on the top of the receiving bin; the recovery device includes a dust collector, the dust collector includes a pulse dust bag, and the recovery device also includes a pulse bag backflush device.

[0014] Preferably, a pressure remote sensor and a temperature remote sensor are also provided on the top of the dust collector; the recovery device also includes an exhaust port and a valve provided at the exhaust port.

[0015] On the other hand, the present invention also provides a method for conveying carbon black by the carbon black conveying equipment described in any of the above technical solutions, comprising the following steps: adding the carbon black and other materials into different feed bins respectively, and opening the valves at the same time, and conveying the carbon black and other materials into the pressure tank through the bidirectional screw conveyor to complete the conveyor stirring process.

[0016] Preferably, the method further includes the following steps: the carbon black and other materials in the pressure tank are transported to the receiving bin through the transport pipeline, and the carbon black powder is transported under the action of the dust collector.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention provides a carbon black conveying device, which realizes the simultaneous conveying of multiple components and has high conveying efficiency;

[0019] 2. The present invention provides a carbon black conveying device, and the arrangement of the gas pipe ensures the conveying efficiency of the carbon black and avoids the occurrence of material blockage;

[0020] 3. The present invention provides a carbon black conveying device, which realizes the quantitative conveying of various materials;

[0021] 4. The present invention provides a carbon black conveying device, which has a higher recovery efficiency of carbon black powder;

[0022] 5. The present invention provides a conveying method, which realizes the simultaneous conveying of multiple materials including carbon black, and at the same time realizes the full stirring of multiple components, with high efficiency and simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a carbon black conveying device provided in an embodiment of the present invention;

[0024] Figure 2 A cross-sectional view of a receiving bin provided in an embodiment of the present invention;

[0025] Figure 3 A cross-sectional view of a recovery device provided by an embodiment of the present invention;

[0026] In the above figures: 1. feed bin; 101. spiral agitator; 102. transmission machine; 2. pressure tank; 3. pressure stabilizing tank; 301. gas compressor; 302. drain outlet; 4. receiving bin; 401. unloading vibrator; 5. conveying pipeline; 6. spiral conveyor; 701. first exhaust pipe; 702. second exhaust pipe; 801. first gas pipeline; 802. second gas pipeline; 803. third gas pipeline; 804. fourth gas pipeline; 901. dust collector; 902. pulse dust bag; 903. pulse bag backflush device; 904. exhaust port; 10. valve; 11. pressure remote sensor; 12. temperature remote sensor; 13. manual knife gate valve; 14. electric rotary valve; 15. upper material level meter; 16. lower material level meter; 17. expansion joint. DETAILED DESCRIPTION

[0027] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that elements, structures, and features in one embodiment may also be beneficially combined in other embodiments without further description.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "inner", "outer" and the like indicate positions or location relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] The terms "first", "second", "third", and "fourth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", "third", and "fourth" may explicitly or implicitly include one or more of the features.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Example: Figure 1As shown, this embodiment lists a carbon black conveying equipment, including a feed bin 1, a pressure tank 2 connected to the feed bin 1, a pressure stabilizing tank 3 connected to the pressure tank 2, a receiving bin 4 connected to the pressure tank 2, and a conveying pipeline 5 for connecting the pressure tank 2 and the receiving bin 4. The number of feed bins 1 is several, and a screw conveyor 6 is provided between the feed bin 1 and the pressure tank 2, and the screw conveyor 6 is a bidirectional screw conveyor; the screw conveyor 6 is provided with several feed ports corresponding to the feed bin 1 along the conveying direction, and the discharge port of the screw conveyor 6 is connected to the feed port of the pressure tank 2; the feed bin 1 is connected to a first exhaust pipe 701, the pressure tank 2 is connected to a second exhaust pipe 702, the first exhaust pipe 701 is connected to the second exhaust pipe 702, and valves 10 are provided on the first exhaust pipe 701 and the second exhaust pipe 702. In the production process of modifying carbon black, there are often carbon black and other multiple materials. Traditional conveying devices generally use the method of first putting the materials into a tank in batches according to proportion at one time, and then using the stirring device installed on the tank to mix the materials evenly before proceeding to the next step. Therefore, it is impossible to achieve one-time stirring and conveying of multiple materials, which greatly affects the work efficiency and increases the labor intensity of the operators. In addition, it is easy to cause dust leakage and diffusion in the process, causing pollution to the environment and people. The carbon black conveying equipment is equipped with multiple feeding bins 1, which can meet the simultaneous conveying of carbon black and multiple components. In addition, by setting a bidirectional screw conveyor, on the one hand, the material is conveyed, and at the same time, the full stirring of each material is achieved, thereby improving the material conveying efficiency. In addition, by setting a valve 10 on the first exhaust pipe 701 and the second exhaust pipe 702, the valve 10 is opened when feeding, and the valve 10 is closed when not feeding, so as to prevent gas and material backflow when conveying materials. The discharge port of the bidirectional screw conveyor is also provided with an expansion joint 17 for adjusting the compensation amount.

[0032] In order to ensure the stable transportation of carbon black and other materials, a gas compressor 301 is also included, and a pressure stabilizing tank 3 is connected to the gas compressor 301; the pressure stabilizing tank 3 is connected to the pressure tank 2 through a gas pipeline, a valve 10 is provided on the gas pipeline, and a pressure remote sensor 11 is provided on the top of the pressure stabilizing tank 3 and the gas pipeline; the gas pipeline includes a first gas pipeline 801, a second gas pipeline 802, a third gas pipeline 803 and a fourth gas pipeline 804 arranged in sequence from top to bottom; the gas inlet of the first gas pipeline 801 is connected to the pressure stabilizing tank 2 through a gas pipeline, and a valve 10 is provided on the gas pipeline, and a pressure remote sensor 11 is provided on the top of the pressure stabilizing tank 3 and the gas pipeline; the gas pipeline includes a first gas pipeline 801, a second gas pipeline 802, a third gas pipeline 803 and a fourth gas pipeline 804 arranged in sequence from top to bottom; the gas inlet of the first gas pipeline 801 is connected to the pressure stabilizing tank 2 through a gas pipeline. The top of the tank 3 is connected, and the air outlet of the first air pipe 801 is connected to the top of the pressure tank 2; the air inlet of the second air pipe 802 is connected to the upper part of the pressure-stabilizing tank 3, and the air outlet of the second air pipe 802 is connected to the bottom of the pressure tank 2; the air inlet of the third air pipe 803 is connected to the lower part of the pressure-stabilizing tank 3, and the air outlet of the third air pipe 803 is connected to the end of the conveying pipeline 5 close to the discharge port of the pressure tank 2; the air inlet of the fourth air pipe 804 is connected to the bottom of the pressure-stabilizing tank 3, and the air outlet of the fourth air pipe 804 is connected to the middle part of the conveying pipeline 5. In this embodiment, the gas compressor 301 is used to provide a gas source. By setting a pressure remote sensor 11, the pressure conditions at different positions can be monitored at all times. In combination with the actual situation, the gas flow rate is changed by adjusting the opening of the valve 10 to adjust the gas pressure at different positions. Specifically, by setting the first gas pipeline 801, the second gas pipeline 802, the third gas pipeline 803 and the fourth gas pipeline 804, the pressure adjustment at different positions along the conveying direction of carbon black and other materials is realized to ensure the efficient and stable conveying of carbon black and other materials. In addition, a drain port 302 is also provided at the bottom of the pressure stabilizing tank 3.

[0033] Furthermore, the pressure remote sensor 11 disposed on the top of the pressure stabilizing tank 3 is connected to the gas compressor 301 via PLC. This embodiment realizes automatic control of the start and stop of the gas compressor 301 by PLC according to the pressure set in the pressure stabilizing tank 3.

[0034] like Figure 2 As shown, in order to prevent material blockage, a spiral stirrer 101 for stirring materials and a transmission machine 102 for driving the spiral stirrer 101 to rotate are provided on the top of the feed bin 1; a material discharge vibrator 401 is provided in the receiving bin 4.

[0035] In order to ensure the air tightness of the carbon black conveying equipment and facilitate the control of the material conveying volume, the discharge port of the feed bin 1, the feed port of the pressure tank 2, the discharge port of the pressure tank 2, and the discharge port of the receiving bin 4 are all provided with a manual knife gate valve 13 and an electric rotary valve 14.

[0036] In order to facilitate monitoring of the amount of carbon black and other materials, the feed bin 1, the pressure tank 2, and the receiving bin 4 are all provided with an upper level meter 15 and a lower level meter 16, and the upper level meter 15 is located above the lower level meter 16. The setting of the upper level meter 15 and the lower level meter 16 facilitates monitoring of the amount of materials and realizes quantitative transportation of materials. In addition, the upper level meter 15 and the lower level meter 16 on the feed bin 1 are interlocked with the conveyor 102 through PLC, and the feeding is automatically controlled according to the material level in the feed bin 1; the upper level meter 15 and the lower level meter 16 on the pressure tank 2 are connected to the electric rotary valve 14 at the outlet of the pressure tank 2 through PLC, and the feeding is automatically controlled according to the material level in the pressure tank 2.

[0037] like Figure 3 As shown, further, it also includes a recovery device, which is located on the top of the receiving bin 4; the recovery device includes a dust collector 901, the dust collector 901 includes a pulse dust bag 902, and the recovery device also includes a pulse bag backflush device 903. The carbon black conveying equipment of this embodiment includes two dust collectors 901, and an installation method of one in use and one in standby is implemented, which facilitates the maintenance and warranty of the equipment and ensures the continuity of work.

[0038] As a preferred embodiment, a pressure remote sensor 11 and a temperature remote sensor 12 are also provided on the top of the dust collector 901; the recovery device also includes an exhaust port 904 and a valve 10 provided at the exhaust port 904.

[0039] This embodiment lists a method for conveying carbon black using the carbon black conveying equipment listed in any of the above embodiments, including the following steps: adding carbon black and other materials to different feed bins 1, opening valve 10 at the same time, conveying carbon black and other materials to pressure tank 2 through bidirectional screw conveyor 6, and completing the conveyor stirring process. This method realizes the simultaneous conveying of multiple materials including carbon black, and at the same time realizes the full stirring of multiple components, with high efficiency and simple operation.

[0040] Furthermore, the following steps are included: the carbon black and other materials in the pressure tank 2 are transported to the receiving bin 4 through the conveying pipe 5, and the carbon black powder is transported under the action of the dust collector 901.

Claims

1. A carbon black conveying device, comprising a feed bin (1), a pressure tank (2) connected to the feed bin (1), a pressure stabilizing tank (3) connected to the pressure tank (2), a receiving bin (4) connected to the pressure tank (2), and a conveying pipeline (5) for connecting the pressure tank (2) and the receiving bin (4), characterized in that: The number of the feed bins (1) is several, and a screw conveyor (6) is provided between the feed bins (1) and the pressure tank (2), and the screw conveyor (6) is a bidirectional screw conveyor; The screw conveyor (6) is provided with a plurality of feed ports corresponding to the feed bin (1) along the conveying direction, and the discharge port of the screw conveyor (6) is connected to the feed port of the pressure tank (2); The feed bin (1) is connected to a first exhaust pipe (701), the pressure tank (2) is connected to a second exhaust pipe (702), the first exhaust pipe (701) is communicated with the second exhaust pipe (702), and valves (10) are provided on the first exhaust pipe (701) and the second exhaust pipe (702).

2. The carbon black conveying equipment according to claim 1, characterized in that: It also includes a gas compressor (301), the pressure stabilizing tank (3) is connected to the gas compressor (301); the pressure stabilizing tank (3) and the pressure tank (2) are connected via a gas pipeline, a valve (10) is provided on the gas pipeline, and a pressure remote sensor (11) is provided on the top of the pressure stabilizing tank (3) and the gas pipeline; The gas pipeline comprises a first gas pipeline (801), a second gas pipeline (802), a third gas pipeline (803) and a fourth gas pipeline (804) which are arranged in sequence from top to bottom; the gas inlet of the first gas pipeline (801) is connected to the top of the pressure stabilizing tank (3), and the gas outlet of the first gas pipeline (801) is connected to the top of the pressure tank (2); the gas inlet of the second gas pipeline (802) is connected to the upper part of the pressure stabilizing tank (3), and the gas outlet of the second gas pipeline (801) is connected to the top of the pressure tank (2); The air outlet of the pipe (802) is connected to the bottom of the pressure tank (2); the air inlet of the third air pipe (803) is connected to the lower part of the pressure-stabilizing tank (3), and the air outlet of the third air pipe (803) is connected to one end of the delivery pipeline (5) close to the discharge port of the pressure tank (2); the air inlet of the fourth air pipe (804) is connected to the bottom of the pressure-stabilizing tank (3), and the air outlet of the fourth air pipe (804) is connected to the middle part of the delivery pipeline (5).

3. The carbon black conveying equipment according to claim 2, characterized in that: The pressure remote sensor (11) disposed on the top of the pressure stabilizing tank (3) is connected to the gas compressor (301) via a PLC.

4. The carbon black conveying equipment according to claim 1, characterized in that: The top of the feeding bin (1) is provided with a spiral stirrer (101) for stirring materials, and a transmission machine (102) for driving the spiral stirrer (101) to rotate; the receiving bin (4) is provided with a material discharge vibrator (401).

5. The carbon black conveying equipment according to claim 1, characterized in that: The discharge port of the feed bin (1), the feed port of the pressure tank (2), the discharge port of the pressure tank (2), and the discharge port of the receiving bin (4) are all provided with a manual knife gate valve (13) and an electric rotary valve (14).

6. The carbon black conveying equipment according to claim 1, characterized in that: The feed bin (1), the pressure tank (2), and the receiving bin (4) are all provided with an upper material level meter (15) and a lower material level meter (16), and the upper material level meter (15) is located above the lower material level meter (16).

7. The carbon black conveying equipment according to claim 1, characterized in that: It also includes a recovery device, which is located on the top of the receiving bin (4); The recovery device comprises a dust collector (901), the dust collector (901) comprises a pulse dust removal bag (902), and the recovery device further comprises a pulse bag back-flushing device (903).

8. The carbon black conveying equipment according to claim 7, characterized in that: The top of the dust collector (901) is also provided with a pressure remote sensor (11) and a temperature remote sensor (12); the recovery device also includes an exhaust port (904) and a valve (10) provided at the exhaust port (904).

9. The method for conveying carbon black according to any one of claims 1 to 8, characterized in that: The following steps are involved: The carbon black and other materials are added to different feed bins (1) respectively, and the valve (10) is opened at the same time. The carbon black and other materials are conveyed to the pressure tank (2) through the bidirectional screw conveyor (6), completing the conveyor stirring process.

10. The method for conveying carbon black using the carbon black conveying equipment according to claim 9, characterized in that: The following steps are also included: The carbon black and other materials in the pressure tank (2) are transported to the receiving bin (4) through the transport pipe (5), and the carbon black powder is transported under the action of the dust collector (901).

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