A pneumatic chute

Abstract

The application relates to a pneumatic chute and relates to the technical field of cement conveying equipment, which comprises a plurality of chute sections arranged in a line, the end portions of two adjacent chute sections abut against each other, one sealing block is arranged between the two adjacent chute sections, the sealing block is arranged around the circumferential surface of the chute section, a fixing assembly for fixing the two adjacent chute sections together is arranged between the two adjacent chute sections, when the fixing assembly fixes the two adjacent chute sections together, the sealing block is compressed between the two adjacent chute sections, a plurality of blowing pipes are arranged in the chute section, the blowing pipes are arranged around the inner circumferential wall of the sealing block, the air outlets of the blowing pipes are directed to the connection between the sealing block and the chute section, and a gas supply mechanism for supplying gas into the blowing pipes is arranged on one side of the chute section. The application has the effect of reducing the situation that materials in the pneumatic chute are stranded at the connection of the chute sections during long-distance conveying.

Description

Technical Field

[0001] This application relates to the technical field of cement conveying equipment, and in particular to a pneumatic conveying chute. Background Technology

[0002] A pneumatic conveyor chute is a device that uses airflow to transport powdery or granular materials within an inclined, enclosed chute. It mainly consists of a chute, a permeable layer, a blower, and material inlets and outlets. The working principle of the pneumatic conveyor chute is that the airflow generated by the blower passes through the permeable layer, causing the material to fluidize within the chute, thus being conveyed upwards or downwards along the chute under the propulsion of the airflow.

[0003] Regarding the technologies mentioned above, in the cement production process, it is necessary to transport raw materials such as limestone, clay, and iron powder from the raw material storage yard to the raw material mill or batching silo. Pneumatic conveyor chutes can achieve efficient and continuous transport of these raw materials, reducing material loss and environmental pollution.

[0004] In related technologies, when long-distance output is required, multiple chute segments need to be prepared and arranged in a straight line. Adjacent chute segments are then fixed together using flanges or other fixing devices to meet the long-distance conveying requirements of the pneumatic chute. However, if this method is used, there may be gaps between two tightly joined chute segments. When material flows within the chute, some powder may become stuck at the connection point of the pneumatic chute segments, causing powder retention. Summary of the Invention

[0005] In order to reduce the occurrence of material being stuck at the connection points of pneumatic conveying chute segments during long-distance conveying, this application provides a pneumatic conveying chute.

[0006] The pneumatic conveying inclined chute provided in this application adopts the following technical solution: A pneumatic conveying chute includes multiple linearly arranged chute segments. The ends of two adjacent chute segments abut against each other. A common sealing block is provided between two adjacent chute segments. The sealing block is arranged around the circumference of the chute segment. A fixing component is provided between two adjacent chute segments to fix them together. When the fixing component fixes two adjacent chute segments together, the sealing block is pressed between the two adjacent chute segments. Multiple purge pipes are provided inside each chute segment. The multiple purge pipes are arranged around the inner circumferential wall of the sealing block. The air outlet of the purge pipe faces the connection between the sealing block and the chute segment. An air supply mechanism is provided on one side of the chute segment for supplying air to the purge pipe.

[0007] By adopting the above technical solution, the gap between two adjacent inclined chute sections can be filled by the sealing block, and the two inclined chute sections can be made to abut the sealing block by the fixing component, thereby reducing the gap between the sealing block and the inclined chute section. When some material gets stuck at the connection between the sealing block and the inclined chute section, or when some material sticks to the gap between the sealing block and the inclined chute section due to moisture passing through the gap, warm air can be introduced into the blowing pipe through the air supply mechanism to blow away and dry the material stuck at the connection between the sealing block and the inclined chute section, thereby reducing the occurrence of material being stuck at the connection of the pneumatic conveying inclined chute sections during long-distance conveying.

[0008] Optionally, the sealing block has a T-shaped cross-section, and the area of ​​the sealing block on the side closer to the inside of the inclined groove is larger than the area of ​​its end on the side farther from the inside of the inclined groove. A slot adapted to the sealing block is provided on the end face of the inclined groove.

[0009] By adopting the above technical solution, the contact area between the sealing block and the inclined section can be increased by setting the slot and the T-shaped sealing block, thereby reducing the occurrence of external moisture and water directly penetrating into the interior of the inclined section.

[0010] Optionally, the gas supply mechanism includes a heater, on which an air supply pipe is fixedly connected and connected. The end of the air supply pipe away from the heater is divided into multiple branch pipes, each branch pipe corresponding to a purge pipe. A connecting component for connecting the two is provided between the branch pipes and the purge pipe.

[0011] By adopting the above technical solution, the hot air generated by the heater can be circulated through the air supply pipe, multiple sets of connecting components and multiple branch pipes into each purging pipe, and the inside of the inclined section can be purged through the purging pipe.

[0012] Optionally, the sealing block includes a rubber part and an alloy part. The alloy part is placed on both sides of the rubber part and abuts against the end of the inclined groove section. One end of the purge pipe is fixedly connected to the rubber part, and the other end of the purge pipe is rotatably connected to the alloy part. An air cavity is formed inside the rubber part. The connecting assembly includes a rubber airbag placed inside the air cavity. An air inlet pipe and an air outlet pipe are fixedly connected and communicated on the rubber airbag. The end of the air inlet pipe away from the rubber airbag is connected to the branch pipe, and the end of the air outlet pipe away from the rubber airbag is fixedly connected and communicated with the purge pipe.

[0013] By adopting the above technical solution, warm air can enter the inlet pipe through a branch pipe and then enter the rubber airbag. When a certain amount of warm air is discharged from the inlet pipe, the rubber airbag expands, supporting the rubber section and causing it to bulge towards the center line of the inclined groove section. This changes the blowing direction of the purge pipe, causing the purge end to rotate further towards the connection between the inclined groove section and the sealing block, thereby improving the purge effect. Simultaneously, as the warm air flows through the inlet pipe, outlet pipe, and rubber airbag, the rubber section expands due to increased temperature, reducing the gap between the sealing block and the inclined groove section, thus forcing some of the material stuck between them.

[0014] Optionally, an I-beam is provided between the air chamber and the purge pipe, with one end of the I-beam placed inside the air chamber and the other end of the I-beam embedded in the rubber part.

[0015] By adopting the above technical solution, the force exerted on the rubber part during the expansion of the airbag can be amplified by the I-beam plate, and a guiding effect can be provided for the expansion direction of the rubber part, thereby improving the expansion effect of the rubber part and the effect of changing the blowing direction of the purge pipe.

[0016] Optionally, the fixing component includes a fixing frame arranged around the inclined groove section, the fixing frames on two adjacent inclined groove sections abutting each other and passing through the same fixing bolt, the fixing bolt being threaded with a fixing nut, the fixing nut being pressed against the fixing frame.

[0017] By adopting the above technical solution, the fixing nut can be rotated to make the two fixing frames abut against the nut of the fixing bolt, thereby stably fixing the two adjacent inclined groove sections.

[0018] Optionally, a sealing plate is rotatably connected to the inlet of the purge pipe, and the sealing plate can only rotate outward from the purge pipe.

[0019] By adopting the above technical solution, the inlet of the purge pipe can be sealed with a sealing plate, reducing the occurrence of material entering the interior of the purge pipe under normal operation of the inclined chute section.

[0020] Optionally, connecting blocks are fixedly connected to both sides of the sealing block, and a glue storage tank is provided on the inclined groove section opposite to the connecting block. When the connecting block is placed in the glue storage tank, there is a gap between the connecting block and the glue storage tank.

[0021] By adopting the above technical solution, adhesive can be added to the glue storage tank. When the connecting block is placed in the glue storage tank, the adhesive can fill the gap between the inclined groove section and the sealing block, and at the same time fill the gap between the glue storage tank and the connecting block.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. Warm air can be introduced into the purge pipe through the air supply mechanism to purge and dry the material stuck at the connection between the sealing block and the inclined section, thereby reducing the occurrence of material being stuck at the connection of the pneumatic conveying inclined section during long-distance conveying. 2. Adhesive can be added to the glue storage tank, so that when the connecting block is placed in the glue storage tank, the adhesive can fill the gap between the inclined groove section and the sealing block, and at the same time fill the gap between the glue storage tank and the connecting block. 3. The force exerted on the rubber part by the airbag during inflation can be amplified by the I-beam plate, and a guiding effect can be provided for the expansion direction of the rubber part, thereby improving the expansion effect of the rubber part and the effect of changing the blowing direction of the purge pipe. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the sealing block according to an embodiment of this application; Figure 3 yes Figure 1 A magnified structural diagram of part A in the middle; Figure 4 yes Figure 2 A magnified structural diagram of part B.

[0024] In the diagram, 1. Inclined groove section; 11. Slot; 2. Sealing block; 21. Rubber part; 211. Air chamber; 22. Alloy part; 3. Fixing component; 31. Fixing frame; 311. Rubber storage tank; 32. Fixing bolt; 33. Fixing nut; 4. Purge pipe; 5. Air supply mechanism; 51. Warm air blower; 52. Air duct; 53. Branch pipe; 54. Connecting component; 541. Rubber airbag; 542. Air outlet pipe; 543. Air inlet pipe; 6. I-beam plate; 7. Connecting block; 8. Sealing plate. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4 This application will be described in further detail below.

[0026] An embodiment of this application is: a pneumatic conveying chute, referring to... Figure 1 and Figure 2 It includes multiple linearly arranged inclined chute sections 1, which are the inclined chute sections 1 used in the prior art for pneumatic conveying of cement raw materials. The ends of two adjacent inclined chute sections 1 abut against each other, and a fixing component 3 is provided between two adjacent inclined chute sections 1 for fixing them together.

[0027] The fixing component 3 includes a fixing frame 31 arranged around the outer wall of the inclined groove section 1. The fixing frame 31 is rectangular. The fixing frames 31 on two adjacent inclined groove sections 1 abut against each other and are fitted with the same fixing bolt 32. In this embodiment, there are four fixing bolts 32, located at the four corners of the fixing frame 31. The fixing bolts 32 are threaded with fixing nuts 33, and each fixing nut 33 corresponds to a fixing bolt 32. The fixing nuts 33 are pressed against the fixing frame 31.

[0028] The two fixing frames 31 can be pressed against the nut of the fixing bolt 32 by rotating the fixing nut 33, thereby fixing the two adjacent inclined groove sections 1.

[0029] A single sealing block 2 is provided between two adjacent inclined groove sections 1. The sealing block 2 is arranged around the circumference of the inclined groove section 1 and is pressed between the two adjacent inclined groove sections 1. In order to increase the contact area between the sealing block 2 and the end of the inclined groove section 1, the cross-section of the sealing block 2 is set as T-shaped. The area of ​​the side of the sealing block 2 closer to the inside of the inclined groove section 1 is larger than the area of ​​its end away from the inside of the inclined groove section 1. A groove 11 adapted to the sealing block 2 is opened on the end face of the inclined groove section 1.

[0030] To further improve the sealing between the inclined section 1 and the sealing block 2, connecting blocks 7 are fixedly connected to both sides of the sealing block 2. A glue storage groove 311 is provided on the inclined section 1 opposite to the connecting block 7. When the connecting block 7 is placed in the glue storage groove 311, a gap exists between the connecting block 7 and the glue storage groove 311. Adhesive, such as heat-resistant foam adhesive, can be added to the glue storage groove 311. The adhesive can fill the gap between the inclined section 1 and the sealing block 2, and simultaneously fill the gap between the glue storage groove 311 and the connecting block 7.

[0031] The inclined chute section 1 is equipped with multiple purge pipes 4, which are equidistantly arranged around the inner peripheral wall of the sealing block 2. The outlet of the purge pipe 4 faces the connection between the sealing block 2 and the inclined chute section 1, and the height of the sealing block 2 is lower than the height of the end of the inclined chute section 1. In order to reduce the occurrence of material entering the interior of the purge pipe 4 under normal operation of the inclined chute section 1, a sealing plate 8 is rotatably connected to the inlet of the purge pipe 4. The sealing plate 8 can only rotate outward from the purge pipe 4.

[0032] Reference Figure 1 , Figure 2 and Figure 3 An air supply mechanism 5 for supplying air to the purge pipe 4 is provided on one side of the inclined chute section 1. The air supply mechanism 5 includes a heater 51, and an air supply pipe 52 is fixedly connected to and connected to the heater 51. The end of the air supply pipe 52 away from the heater 51 is arranged around the outer wall of the inclined chute section 1 and distributed into multiple branch pipes 53. Each branch pipe 53 corresponds to a purge pipe 4, and a connecting component 54 is provided between the branch pipe 53 and the purge pipe 4 to connect the two.

[0033] Reference Figure 2 , Figure 3 and Figure 4 The sealing block 2 includes a rubber part 21 and an alloy part 22. The alloy part 22 is located on both sides of the rubber part 21 and abuts against the end of the inclined groove section 1. The purge pipe 4 is located at the junction of the rubber part 21 and the alloy part 22. One end of the purge pipe 4 is fixedly connected to the rubber part 21, and the other end of the purge pipe 4 is rotatably connected to the alloy part 22. An air cavity 211 is formed inside the rubber part 21, and the air cavity 211 is located below the end of the purge pipe 4 away from its own opening.

[0034] The connecting assembly 54 includes a rubber airbag 541 placed in the air chamber 211. An air inlet pipe 543 and an air outlet pipe 542 are fixedly connected and communicated on the rubber airbag 541. The end of the air inlet pipe 543 away from the rubber airbag 541 is connected to the branch pipe 53. The end of the air outlet pipe 542 away from the rubber airbag 541 is fixedly connected and communicated to the side of the purge pipe 4 away from its own air outlet end.

[0035] By activating the heater 51, the warm air generated by the heater 51 enters the air inlet pipe 543 through the branch pipe 53, and then enters the rubber airbag 541 through the air inlet pipe 543. Subsequently, when a certain amount of warm air is discharged from the air inlet pipe 543, the rubber airbag 541 will inflate, causing the rubber part 21 to bulge towards the center line of the inclined groove section 1. To enhance the bulging effect of the rubber part 21, an I-beam plate 6 is provided between the air chamber 211 and the purge pipe 4. One end of the I-beam plate 6 is placed in the air chamber 211, and the other end is embedded in the rubber part 21. Furthermore, the I-beam plate 6 can lift the purge pipe 4 through the rubber part 21, causing the purge end of the purge pipe 4 to rotate further towards the connection between the inclined groove section 1 and the sealing block 2, thereby changing the purge direction of the purge pipe 4 and improving the purge effect and range.

[0036] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pneumatic conveying chute, comprising a plurality of linearly arranged chute segments (1), wherein the ends of two adjacent chute segments (1) abut against each other, characterized in that, A common sealing block (2) is provided between two adjacent inclined sluice sections (1). The sealing block (2) is arranged around the periphery of the inclined sluice section (1). A fixing component (3) is provided between two adjacent inclined sluice sections (1) to fix them together. When the fixing component (3) fixes two adjacent inclined sluice sections (1) together, the sealing block (2) is pressed between the two adjacent inclined sluice sections (1). Multiple purge pipes (4) are provided inside the inclined sluice section (1). The multiple purge pipes (4) are arranged around the inner periphery of the sealing block (2). The air outlet of the purge pipe (4) faces the connection between the sealing block (2) and the inclined sluice section (1). An air supply mechanism (5) is provided on one side of the inclined sluice section (1) to supply air into the purge pipe (4).

2. The pneumatic conveying chute according to claim 1, characterized in that, The sealing block (2) has a T-shaped cross section. The area of ​​the sealing block (2) on the side closer to the inside of the inclined groove section (1) is greater than the area of ​​the end on the side farther from the inside of the inclined groove section (1). A slot (11) adapted to the sealing block (2) is provided on the end face of the inclined groove section (1).

3. The pneumatic conveying chute according to claim 1, characterized in that, The gas supply mechanism (5) includes a heater (51), and an air supply pipe (52) is fixedly connected and connected to the heater (51). The end of the air supply pipe (52) away from the heater (51) is divided into multiple branch pipes (53). Each branch pipe (53) corresponds to a purge pipe (4). A connecting component (54) for connecting the two is provided between the branch pipe (53) and the purge pipe (4).

4. The pneumatic conveying chute according to claim 3, characterized in that, The sealing block (2) includes a rubber part (21) and an alloy part (22). The alloy part (22) is placed on both sides of the rubber part (21) and abuts against the end of the inclined groove section (1). One end of the purge pipe (4) is fixedly connected to the rubber part (21), and the other end of the purge pipe (4) is rotatably connected to the alloy part (22). An air chamber (211) is opened in the rubber part (21). The connecting assembly (54) includes a rubber airbag (541) placed in the air chamber (211). An air inlet pipe (543) and an air outlet pipe (542) are fixedly connected and communicated on the rubber airbag (541). The end of the air inlet pipe (543) away from the rubber airbag (541) is connected to the branch pipe (53), and the end of the air outlet pipe (542) away from the rubber airbag (541) is fixedly connected and communicated with the purge pipe (4).

5. A pneumatic conveying chute according to claim 4, characterized in that, An I-beam plate (6) is provided between the air chamber (211) and the purge pipe (4). One end of the I-beam plate (6) is placed in the air chamber (211), and the other end of the I-beam plate (6) is embedded in the rubber part (21).

6. The pneumatic conveying chute according to claim 1, characterized in that, The fixing component (3) includes a fixing frame (31) arranged around the inclined groove section (1), the fixing frames (31) on two adjacent inclined groove sections (1) abut against each other and are provided with the same fixing bolt (32), the fixing bolt (32) is threaded with a fixing nut (33), and the fixing nut (33) abuts against the fixing frame (31).

7. The pneumatic conveying chute according to claim 1, characterized in that, A sealing plate (8) is rotatably connected to the opening of the purge pipe (4), and the sealing plate (8) can only rotate to the outside of the purge pipe (4).

8. A pneumatic conveying chute according to claim 6, characterized in that, Both sides of the sealing block (2) are fixedly connected to connecting blocks (7). The fixed frame (31) opposite to the connecting block (7) is provided with a glue storage groove (311). When the connecting block (7) is placed in the glue storage groove (311), there is a gap between the connecting block (7) and the glue storage groove (311).

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