A system for pneumatic conveying of coke breeze

Abstract

The utility model discloses a kind of coke breeze pneumatic conveying systems, belong to powder conveying technical field, including feed hopper, pneumatic conveying device, powder conveying pipeline and bunker, and the discharge opening of feed hopper is connected with format feeding device correspondingly;Pneumatic conveying device includes multiple feed slots sequentially arranged along powder conveying direction, and the feed slot of adjacent arrangement is communicated by connecting groove, and the feed port of feed slot is butt joint with the discharge opening of format feeding device;Feed slot and connecting groove side are provided with gas supply pipeline, and gas supply pipeline is communicated with feed slot and connecting groove by multiple gas supply branch pipes respectively, and one end of gas supply pipeline is communicated with gas supply fan;The feed port of powder conveying pipeline and the tail end of powder conveying pipeline are butt joint with the discharge opening of connecting groove;Bunker import end and the tail end of powder conveying pipeline are butt joint. The utility model uses pneumatic conveying device to efficiently, environmentally friendly with coke breeze is conveyed to bunker storage.

Description

Technical Field

[0001] This utility model belongs to the field of powder conveying technology, and in particular relates to a pneumatic conveying system for coke powder. Background Technology

[0002] In the process of processing petroleum coke products using coking dust of approximately 60 mesh, production equipment such as hoppers and belt conveyors are required during production and transfer to storage bins to ensure the smooth and uniform transport of coke powder into the silo. Currently, the powder transport process typically requires a forklift to lift the ton bag and place it above the conveyor hopper, with personnel assisting in untying the rope at the bottom of the bag. The coke dust then flows into the hopper, is conveyed by belt to the bucket elevator, and finally discharged into the silo. This process is labor-intensive, time-consuming, and generates significant dust. To address these challenges, a device is needed that can quickly and safely transport coke dust into the silo while minimizing environmental pollution incidents. Utility Model Content

[0003] Technical problem to be solved: In view of the technical problems existing in the background technology, this utility model provides a coke powder pneumatic conveying system, which can efficiently and environmentally transport coke powder to the storage bin by using a pneumatic conveying device.

[0004] Technical solution: The pneumatic conveying system for coke powder described in this utility model includes:

[0005] A feeding hopper, the discharge port of which is connected to a corresponding feeding device;

[0006] A pneumatic conveying device includes multiple feed troughs arranged sequentially along the powder conveying direction. Adjacent feed troughs are connected by connecting troughs, and the feed inlets of the feed troughs are connected to the discharge outlets of the feed feeding device. An air supply pipe is provided on one side of the feed troughs and connecting troughs. The air supply pipe is connected to the feed troughs and connecting troughs through several air supply branch pipes, and one end of the air supply pipe is connected to an air supply fan.

[0007] A powder conveying pipeline, wherein the inlet end of the powder conveying pipeline is connected to the outlet of the connecting groove at the end, and a one-way valve and a pressure sensor are connected to the powder conveying pipeline.

[0008] The silo has its inlet end connected to the tail end of the powder conveying pipeline.

[0009] Preferably, the feeding trough and connecting trough are provided with multiple sets of baffles connected in sequence on the side corresponding to the air supply branch pipe. The multiple sets of baffles are connected into one piece to divide the feeding trough and connecting trough into an air supply cavity and a conveying cavity. The baffles are provided with ventilation holes that connect the air supply cavity and the conveying cavity.

[0010] Preferably, an air control valve is connected to the air supply branch pipe; an air chamber baffle for adjusting the opening of the air supply cavity is provided between adjacent feed troughs and connecting troughs.

[0011] Preferably, an anti-wear plate is provided on the top of the baffle plate on one side of the conveying cavity, and ventilation holes are provided on the anti-wear plate.

[0012] Preferably, the feeding trough is provided with a feeding slide corresponding to the discharge port of the feeding device. One end of the feeding slide is provided with hinge shafts that are hinged to the side wall of the feeding trough, and the other end of the feeding slide is provided with adjusting arms that are hinged to the side wall of the feeding trough. Rotating the adjusting arms drives the feeding slide to rotate along the hinge shaft to adjust the tilt angle.

[0013] Preferably, a rain cover is provided at the top of the connection between the feed trough and the connecting trough.

[0014] Preferably, the pneumatic conveying device is provided with at least one exhaust hood on the feed trough or connecting trough.

[0015] Preferably, the pneumatic conveying device is located in the middle and rear section of the conveying direction and is connected to a conveying trough by multiple connecting grooves, and the conveying trough is connected to at least one elbow groove.

[0016] Preferably, the conveying trough is connected to at least one three-way trough, and the two conveying ends of the three-way trough are respectively connected to a shut-off valve. The outlet end of the shut-off valve is respectively connected to a branch of the conveying trough, and the end of the branch of the conveying trough is provided with a conveying tail end for connecting to the powder conveying pipeline.

[0017] Preferably, a side-deck pipe is provided on the branch of the conveying trough.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This utility model employs a pneumatic conveying device that works in conjunction with the feed hopper and silo to ensure the airtightness of the powder conveying process. This allows for efficient and environmentally friendly conveying of coke powder to the silo for storage, solving the problem of severe dust generation during powder conveying and reducing dust pollution and the risks associated with manual operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the pneumatic conveying system structure of this application;

[0021] Figure 2 for Figure 1 Main view of the pneumatic conveying device structure;

[0022] Figure 3 for Figure 2 Top view of the pneumatic conveying device structure;

[0023] Figure 4 for Figure 2 Schematic diagram of the internal structure of the feed trough ((a) front view; (b) top view);

[0024] Figure 5 for Figure 2 Schematic diagram of the middle wind deflector structure ((a) end view; (b) top view);

[0025] Figure 6 for Figure 2 Schematic diagram of the central exhaust hood structure ((a) front view; (b) top view);

[0026] Figure 7 for Figure 2 Schematic diagram of the middle air chamber partition structure ((a) front view; (b) end view);

[0027] Figure 8 for Figure 2 Main view of the medium wear-resistant plate structure;

[0028] Figure 9 for Figure 2 Main view of the end cap structure installed in the middle;

[0029] Figure 10 for Figure 3 Schematic diagram of the middle bend groove structure ((a) front view; (b) top view);

[0030] Figure 11 for Figure 3 Schematic diagram of the T-junction structure ((a) front view; (b) top view);

[0031] Figure 12 for Figure 3 Schematic diagram of the interception valve structure ((a) front view; (b) side view).

[0032] Reference numerals: 1. Feed hopper; 2. Feeding device; 3. Pneumatic conveying device; 31. Feed chute; 32. Connecting chute; 33. Elbow chute; 34. T-junction chute; 35. Cut-off valve; 36. Side discharge pipe; 37. Conveying tail end; 38. Support frame; 39. Rain cover; 310. Air control valve; 311. Air supply pipe; 312. Air supply fan; 313. Feed chute; 3131. Hinge shaft; 3132. Adjusting arm; 314. Baffle plate; 315. Exhaust hood; 316. Air chamber partition; 317. Wear-resistant plate; 318. Mounting end cover; 4. Powder conveying pipe; 5. Check valve; 6. First shut-off valve; 7. Pressure sensor; 8. Second shut-off valve; 9. Hopper. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be combined with... Figures 1-12The technical solutions of the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0034] like Figures 1-3 As shown, this utility model discloses a pneumatic conveying system for coke powder, including a feed hopper 1, a pneumatic conveying device 3, a powder conveying pipeline 4, and a silo 9. A feeder 2 is connected to the discharge port of the feed hopper 1. The feeder 2 can be implemented using existing technology. The feeder 2 controls the feeding speed of the feed hopper 1, thereby controlling the feeding amount. The pneumatic conveying device 3 includes multiple feed troughs 31 arranged sequentially along the powder conveying direction. Adjacent feed troughs 31 are connected by connecting grooves 32, and the inlets of the feed troughs 31 are connected to the discharge ports of the feeder 2. It should be noted that the number of feed troughs 31 can be freely selected according to the types of ingredients used in the production process. For example, if only one type of powder is needed, only a few feed troughs 31 are required. Figure 1 The feed hopper 1 shown can be equipped with multiple feed hoppers 1 corresponding to the feed trough 31 if multiple ingredients are required, so as to meet the pneumatic conveying and mixing of various powders.

[0035] like Figure 2 As shown, an air supply pipe 311 is provided on one side of the feeding trough 31 and the connecting trough 32. The air supply pipe 311 is connected to the feeding trough 31 and the connecting trough 32 through multiple air supply branch pipes. One end of the air supply pipe 311 is connected to the air supply fan 312. Air is supplied to the pneumatic conveying device 3 through the air supply fan 312 and the air supply pipe 311, so that the adhesive powder is in a fluidized state during the conveying process, thereby improving the conveying efficiency of the powder.

[0036] like Figure 2 As shown, multiple sets of baffle plates 314 are sequentially connected on the side corresponding to the air supply branch pipe within the feed trough 31 and connecting trough 32. These baffle plates 314 are connected as a single unit, dividing the feed trough 31 and connecting trough 32 into an air supply chamber and a conveying chamber. Ventilation holes are provided on the baffle plates 314 to connect the air supply chamber and the conveying chamber. The structure of the baffle plates 314 is as follows: Figure 5 As shown; in this embodiment, the feed trough 31 and the connecting trough 32 are divided into two parts by the baffle plate 314. The air supply chamber is mainly used for compressed air to pass through, and the conveying chamber is used for powder to pass through. During the air supply process, the compressed air enters the conveying chamber through the baffle plate 314, so that the powder is in a fluidized state and thus the powder is conveyed.

[0037] An air control valve 310 is connected to each air supply branch pipe. The air control valve 310 can control the opening degree of each air supply branch pipe, thereby regulating the air intake volume. An air chamber baffle 316 for adjusting the opening degree of the air supply cavity is provided between adjacent feed troughs 31 and connecting troughs 32. The structure of the air chamber baffle 316 is as follows: Figure 7 As shown, the flow rate of the air supply chamber is adjusted by adjusting the insertion depth of the air chamber baffle 316.

[0038] like Figure 2 As shown, an anti-wear plate 317 is provided on the top of the baffle plate 314 on one side of the conveying cavity. The anti-wear plate 317 is provided with ventilation holes, and its structure is as follows. Figure 8 As shown, the wear-resistant plate 317 can improve the wear resistance of the wind deflector 314 and the corresponding side of the conveying cavity, thereby reducing the wear of the wind deflector and making it easy to replace the wear-resistant plate 317.

[0039] like Figure 1 As shown, the inlet end of the powder conveying pipeline 4 is connected to the outlet of the connecting groove 32 at the end, the inlet end of the hopper 9 is connected to the tail end of the powder conveying pipeline 4, and a one-way valve 5, a first shut-off valve 6 and a pressure sensor 7 are connected to the powder conveying pipeline 4. A second shut-off valve 8 is connected at the connection between the powder conveying pipeline 4 and the hopper 9. The first shut-off valve 6 and the second shut-off valve 8 can control the connection or disconnection of the powder conveying pipeline 4.

[0040] like Figure 2 and Figure 4 As shown, the feed trough 31 is equipped with a feed chute 313 corresponding to the discharge port of the feed device 2. One end of the feed chute 313 has hinge shafts 3131 on both sides, hinged to the side wall of the feed trough 31. The other end of the feed chute 313 has adjusting arms 3132 on both sides, hinged to the side wall of the feed trough 31. Rotating the adjusting arms 3132 drives the feed chute 313 to rotate along the hinge shafts 3131 to adjust the tilt angle. During operation, the coke powder tends to accumulate at the head of the feed trough 31 during the feeding process, and there is a significant impact force. The feed chute 313 can buffer the coke powder feeding process, facilitating the fluidized conveying of the coke powder.

[0041] A rain cover 39 is provided at the top of the connection between the feed trough 31 and the connecting trough 32. The rain cover 39 can protect the connection between the feed trough 31 and the connecting trough 32 and prevent water from entering.

[0042] like Figure 6 As shown, at least one exhaust hood 315 is provided on the pneumatic conveying device 3 located on the feed trough 31 or the connecting trough 32. The exhaust hood 315 can provide emergency pressure relief when the pressure inside the pneumatic conveying device 3 surges.

[0043] In one specific embodiment, such as Figure 3As shown, the pneumatic conveying device 3 is located in the middle and rear section of the conveying direction and is connected to form a conveying trough through multiple connecting grooves 32. At least one elbow groove 33 is connected to the conveying trough as required. The structure of the elbow groove 33 is as follows: Figure 10 As shown, the turning radius of the elbow groove 33 and the number of elbow grooves 33 are set according to the requirements. The conveying direction of the powder can be changed through the elbow groove 33, which facilitates the layout of the pneumatic conveying device 3.

[0044] In one specific embodiment, such as Figure 3 As shown, at least one tee groove 34 is connected to the conveying trough, and the structure of the tee groove 34 is as follows. Figure 11 As shown, the number of three-way troughs 34 is set according to requirements. The three-way troughs 34 enable branched conveying of powder materials, meeting the feeding needs of multiple silos 9. A stop valve 35 is connected to each of the two conveying ends of the three-way trough 34. The structure of the stop valve 35 is as follows: Figure 12 As shown; the outlet end of the intercepting valve 35 is connected to the conveying trough branch, and the end of the conveying trough branch is provided with a conveying tail end 37 for the powder conveying pipeline 4 to be connected.

[0045] In a preferred embodiment, such as Figure 3 As shown, a side drain pipe 36 is provided on the branch of the conveying trough. The side drain pipe 36 facilitates drainage and maintenance when the pneumatic conveying device 3 fails.

[0046] like Figure 9 As shown, an end cap 318 is provided at one end of the feed trough 31 at the head to close the end of the feed trough 31.

[0047] like Figures 1-2 As shown, the pneumatic conveying device is mounted on the support frame 38.

[0048] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A pneumatic conveying system for coke powder, characterized in that, include: Feed hopper (1), and the discharge port of the feed hopper (1) is connected to a corresponding feeding device (2); A pneumatic conveying device (3) includes multiple feed troughs (31) arranged sequentially along the powder conveying direction. Adjacent feed troughs (31) are connected by connecting troughs (32), and the feed inlet of the feed trough (31) is connected to the discharge port of the feed feeding device (2). An air supply pipe (311) is provided on one side of the feed trough (31) and the connecting trough (32). The air supply pipe (311) is connected to the feed trough (31) and the connecting trough (32) through several air supply branch pipes, and one end of the air supply pipe (311) is connected to the air supply fan (312). The powder conveying pipeline (4) has its inlet end connected to the outlet of the connecting groove (32) at the end, and a one-way valve (5) and a pressure sensor (7) are connected to the powder conveying pipeline (4). The silo (9) is connected at its inlet end to the tail end of the powder conveying pipeline (4).

2. The pneumatic conveying system for coke powder according to claim 1, characterized in that, The feed trough (31) and connecting trough (32) are provided with multiple sets of baffles (314) connected in sequence on the side corresponding to the air supply branch pipe. The multiple sets of baffles (314) are connected into one piece to divide the feed trough (31) and connecting trough (32) into an air supply cavity and a conveying cavity. The baffles (314) are provided with ventilation holes that connect the air supply cavity and the conveying cavity.

3. The pneumatic conveying system for coke powder according to claim 2, characterized in that, An air control valve (310) is connected to the air supply branch pipe; an air chamber partition (316) for adjusting the opening of the air supply cavity is provided between the adjacent feed trough (31) and the connecting trough (32).

4. The pneumatic conveying system for coke powder according to claim 2, characterized in that, The top of the baffle plate (314) is provided with an anti-wear plate (317) on one side of the conveying cavity, and the anti-wear plate (317) is provided with ventilation holes.

5. The pneumatic conveying system for coke powder according to claim 1, characterized in that, The feed trough (31) is provided with a feed slide (313) corresponding to the discharge port of the feed feeding device (2). The feed slide (313) has hinge shafts (3131) on both sides of one end that are hinged to the side wall of the feed trough (31), and adjustment arms (3132) on both sides of the other end that are hinged to the side wall of the feed trough (31). Rotating the adjustment arm (3132) drives the feed slide (313) to rotate along the hinge shaft (3131) to adjust the tilt angle.

6. The pneumatic conveying system for coke powder according to claim 1, characterized in that, A rain cover (39) is provided at the top of the connection between the feed trough (31) and the connecting trough (32).

7. The pneumatic conveying system for coke powder according to claim 1, characterized in that, The pneumatic conveying device (3) is provided with at least one exhaust hood (315) on the feed trough (31) or connecting trough (32).

8. The pneumatic conveying system for coke powder according to any one of claims 1-7, characterized in that, The pneumatic conveying device (3) is located in the middle and rear section of the conveying direction and is connected to a conveying trough through multiple connecting grooves (32), and the conveying trough is connected to at least one elbow groove (33).

9. The pneumatic conveying system for coke powder according to claim 8, characterized in that, The conveying trough is connected to at least one three-way trough (34), and the two conveying ends of the three-way trough (34) are respectively connected to the intercepting valve (35). The outlet end of the intercepting valve (35) is respectively connected to the conveying trough branch, and the end of the conveying trough branch is provided with a conveying tail end (37) for the powder conveying pipeline (4) to connect.

10. The pneumatic conveying system for coke powder according to claim 9, characterized in that, A side-discharge pipe (36) is provided on the branch of the conveying trough.

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