Pipeline air supply device of pneumatic ash conveying system

Abstract

The utility model discloses a pneumatic ash conveying system pipeline air supply device which comprises a connecting pipe, a flow guide pipe is arranged at the top of the connecting pipe, the two ends of the flow guide pipe are both located in the connecting pipe, a sliding hole is formed in one side of the flow guide pipe, a sliding rod is connected into the sliding hole in a sliding mode, a funnel is welded to one end of the sliding rod, and a connecting rod is welded to the other end of the sliding rod. Through the arrangement of the funnel and the sliding pipe, air flow in the flow guide pipe can push the funnel to move backwards, so that the sliding rod and the connecting rod move backwards, the sliding pipe slides in the sliding groove, the overlapping part between the air passing hole in the top of the sliding pipe and the external connecting pipe becomes smaller, and supplement of external air flow is reduced until the air passing hole and the external connecting pipe are completely staggered; the air flow is not required to be supplemented at all, otherwise, the air flow is pulled back by the elastic component, so that the supplement of the air flow can be increased until the air flow is completely overlapped to the maximum limit, all the parts are made of wear-resistant materials, articles in the pipeline cannot deform, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic ash conveying, in particular to a pipeline air replenishing device for a pneumatic ash conveying system. Background Art

[0002] Pneumatic ash conveying, also known as pneumatic transportation, has the characteristics of simple structure, easy operation, and can be used for horizontal, vertical or inclined transportation.

[0003] After searching, the announcement number CN220886112U discloses an automatic air-filling device for pneumatic ash conveying pipeline. If the current air pressure in the ash conveying pipeline is lower than the adjusted set air pressure, the air-filling channel automatically opens and supplies air to the ash conveying pipeline, thereby assisting the air source to quickly reach the set air pressure in the ash conveying pipeline. The diaphragm is an elastic and restorable item. During the pneumatic ash conveying process, the fluid will cause irreversible damage to the diaphragm, resulting in a short service life of the diaphragm, thereby failing to achieve the purpose of regulation. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a pipeline air replenishing device for a pneumatic ash conveying system.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pipeline air replenishment device for a pneumatic ash conveying system comprises a connecting pipe, a guide pipe is provided on the top of the connecting pipe, both ends of the guide pipe are located in the connecting pipe, a sliding hole is provided on one side of the guide pipe, a sliding rod is slidably connected in the sliding hole, a funnel is welded at one end of the sliding rod, and a connecting rod is welded at the other end, an external pipe connected to an external air replenishment device is provided on the top of the connecting pipe, and the external pipe is connected to the inside of the connecting pipe, a sliding groove is provided on the circumferential inner wall of the connecting pipe, a sliding pipe is slidably connected in the sliding groove, an air hole is provided on the top of the sliding pipe, an avoidance groove is provided on the top of the connecting pipe, and one side of the sliding pipe slides in the avoidance groove, and the connecting rod is fixed to the sliding pipe, an elastic component for pulling the connecting rod to move to the guide pipe is provided on one side of the guide pipe, and an adjustment mechanism for limiting the sliding position of the sliding pipe is provided on the circumferential outer wall of the connecting pipe.

[0007] As a further solution of the utility model, the elastic component is a tension spring, one end of which is fixed to an outer wall of one side of the guide tube by bolts, and the other end of which is fixed to one side of the connecting rod by bolts.

[0008] As a further solution of the utility model, the adjusting mechanism includes a fixing ring welded to the circumferential outer wall of the connecting tube, one side of the fixing ring is rotatably connected to a screw rod, a slip ring is sleeved on the circumferential outer wall of the connecting tube, one end of the screw rod passes through the slip ring and is threadedly connected to the slip ring.

[0009] As a further solution of the utility model, a groove is provided on the circumferential inner wall of the slide groove, a sealing ring is bonded in the groove, and the sealing ring is in contact with the circumferential outer wall of the slide tube.

[0010] As a further solution of the utility model, the length of the sliding pipe is not less than the distance from the leftmost side of the avoidance groove to the rightmost side of the sliding groove.

[0011] As a further solution of the utility model, flanges are welded at both ends of the connecting pipe, and rubber pads are bonded to one side of the two flanges.

[0012] As a further solution of the utility model, a plurality of evenly distributed fixing blocks are welded to both ends of the connecting pipe, and the fixing blocks are fixed to the flanges.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model is provided with a funnel and a slide pipe. The airflow in the guide pipe will push the funnel to move backward, thereby moving the slide rod and the connecting rod backward, and then the slide pipe slides in the slide groove, so that the overlapping part between the air hole at the top of the slide pipe and the external pipe becomes smaller, thereby reducing the supplement of the external airflow until it is completely staggered and no supplement of airflow is required. Otherwise, it will be pulled back by the elastic component, which can increase the supplement of the airflow until it is completely overlapped to the maximum limit. It is made of wear-resistant materials, and the objects located in the pipeline will not be deformed, thereby improving the service life of the device.

[0015] 2. The utility model is provided with an adjustment mechanism to rotate the screw rod, and the screw rod and the slip ring act on the thread to move the slip ring, thereby limiting the maximum distance that the slide tube slides to the right, and then adjusting the minimum air flow of the air supply amount, thereby improving the selectivity of the device.

[0016] 3. The utility model provides a sealing ring which contacts the circumferential outer wall of the slide pipe, thereby increasing the sealing performance between the slide groove and the slide pipe and reducing the power loss of pneumatic conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a pipeline air supply device for a pneumatic ash conveying system proposed by the utility model;

[0018] Figure 2 This is a partial cross-sectional structural schematic diagram of a pipeline air supply device for a pneumatic ash conveying system proposed by the utility model;

[0019] Figure 3 This is a partially enlarged structural schematic diagram of a pipeline air replenishing device for a pneumatic ash conveying system proposed by the utility model.

[0020] In the figure: 1. connecting pipe; 2. guide pipe; 3. fixing ring; 4. screw rod; 5. slip ring; 6. sliding rod; 7. connecting rod; 8. external pipe; 9. fixing block; 10. rubber pad; 11. flange; 12. funnel; 13. tension spring; 14. sliding pipe; 15. sealing ring; 16. avoidance groove; 17. air hole; 18. slide groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1-Figure 3A pipeline air supply device for a pneumatic ash conveying system includes a connecting pipe 1, both ends of the connecting pipe 1 are welded with flanges 11, the connecting pipe 1 can be installed in the pneumatic ash conveying pipeline system through the flanges 11, one side of the two flanges 11 is bonded with rubber pads 10 to increase the sealing of the connection between the connecting pipe 1 and the pipeline system, both ends of the connecting pipe 1 are welded with a plurality of evenly distributed fixing blocks 9, and the fixing blocks 9 are fixed to the flanges 11 to strengthen the fixation of the flanges 11 and the connecting pipe 1, so that the fixation of the flanges 11 is more stable, a guide pipe 2 is provided on the top of the connecting pipe 1, both ends of the guide pipe 2 are located in the connecting pipe 1, a sliding hole is opened on one side of the guide pipe 2, and a sliding connection in the sliding hole A slide rod 6 is connected, a funnel 12 is welded to one end of the slide rod 6, and a connecting rod 7 is welded to the other end. An external pipe 8 connected to an external air supply device is provided on the top of the connecting pipe 1, and the external pipe 8 is communicated with the inside of the connecting pipe 1. A slide groove 18 is provided on the circumferential inner wall of the connecting pipe 1, and a slide pipe 14 is slidably connected in the slide groove 18. An air hole 17 is provided on the top of the slide pipe 14. An avoidance groove 16 is provided on the top of the connecting pipe 1, and one side of the slide pipe 14 slides in the avoidance groove 16, and the connecting rod 7 is fixed to the slide pipe 14. The length of the slide pipe 14 is not less than the distance from the leftmost side of the avoidance groove 16 to the rightmost side of the slide groove 18, which can prevent the slide pipe 14 from moving to the rightmost side. Dust is exposed from the avoidance groove 16. A groove is provided on the circumferential inner wall of the slide groove 18. A sealing ring 15 is bonded in the groove, and the sealing ring 15 contacts the circumferential outer wall of the slide tube 14, thereby increasing the sealing between the slide groove 18 and the slide tube 14 and reducing the power loss of pneumatic conveying. An elastic component for pulling the connecting rod 7 to move the guide tube 2 is provided on one side of the guide tube 2. The elastic component is a tension spring 13. One end of the tension spring 13 is fixed to the outer wall of one side of the guide tube 2 by bolts, and the other end is fixed to one side of the connecting rod 7 by bolts. The elastic component can also be an elastic rubber and an airbag. An adjusting mechanism for limiting the sliding position of the slide tube 14 is provided on the circumferential outer wall of the connecting tube 1. When When the air flow velocity in the connecting pipe 1 installed in the pipeline system is too fast, part of the air flow will enter the guide pipe 2, and the air flow in the guide pipe 2 will push the funnel 12 to move backward, thereby moving the slide rod 6 and the connecting rod 7 backward, and then the slide pipe 14 slides in the slide groove 18, so that the overlapping part between the air hole 17 at the top of the slide pipe 14 and the external pipe 8 becomes smaller, thereby reducing the supplement of external air flow until it is completely staggered and no supplementary air flow is required. Otherwise, it will be pulled back by the elastic component, which can increase the supplement of air flow until it is completely overlapped to the maximum limit. They are all made of wear-resistant materials, and the objects located in the pipeline will not be deformed, thereby increasing the service life of the device.

[0023] Among them, the adjustment mechanism includes a fixed ring 3, which is welded to the circumferential outer wall of the connecting tube 1. A screw rod 4 is rotatably connected to one side of the fixed ring 3. A slip ring 5 is sleeved on the circumferential outer wall of the connecting tube 1. One end of the screw rod 4 passes through the slip ring 5 and is threadedly connected to the slip ring 5. The screw rod 4 is rotated, and the screw rod 4 and the slip ring 5 act on the threads to move the slip ring 5, thereby limiting the maximum distance that the sliding tube 14 slides to the right, thereby adjusting the minimum air flow of the air supply amount, and improving the selectivity of the device.

[0024] Working principle: When the air flow velocity in the connecting pipe 1 installed in the pipeline system is too fast, part of the air flow will enter the guide pipe 2, and the air flow in the guide pipe 2 will push the funnel 12 to move backward, thereby moving the slide rod 6 and the connecting rod 7 backward, and then the slide pipe 14 slides in the slide groove 18, so that the overlapping part between the air hole 17 at the top of the slide pipe 14 and the external pipe 8 becomes smaller, thereby reducing the supplement of external air flow until it is completely staggered and no supplementary air flow is required. Otherwise, it will be pulled back by the elastic component, which can increase the supplement of air flow until it is completely overlapped to the maximum limit. When it is necessary to limit the minimum air flow of the air supplement, turn the screw rod 4, and the screw rod 4 and the slip ring 5 work together on the thread to move the slip ring 5, thereby limiting the maximum distance that the slide pipe 14 slides to the right, thereby adjusting the minimum air flow of the air supplement.

[0025] Finally, it should be noted that: for those skilled in the art, they can still modify the technical solutions recorded in the above embodiments, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this utility model shall be included in the protection scope of this utility model.

Claims

1. A pipeline air supply device for a pneumatic ash conveying system, comprising a connecting pipe (1), characterized in that: The top of the connecting tube (1) is provided with a guide tube (2), both ends of the guide tube (2) are located in the connecting tube (1), one side of the guide tube (2) is provided with a sliding hole, a sliding rod (6) is slidably connected in the sliding hole, one end of the sliding rod (6) is fixedly connected to a funnel (12), and the other end is fixedly connected to a connecting rod (7), the top of the connecting tube (1) is provided with an external tube (8) connected to an external air supply device, and the external tube (8) is connected to the inside of the connecting tube (1), and a sliding groove (18) is provided on the circumferential inner wall of the connecting tube (1). ), a slide tube (14) is slidably connected in the slide groove (18), an air hole (17) is provided on the top of the slide tube (14), a position avoidance groove (16) is provided on the top of the connecting tube (1), and one side of the slide tube (14) slides in the position avoidance groove (16), and the connecting rod (7) is fixed to the slide tube (14), one side of the guide tube (2) is provided with an elastic component for pulling the connecting rod (7) to move toward the guide tube (2), and an adjustment mechanism for limiting the sliding position of the slide tube (14) is provided on the circumferential outer wall of the connecting tube (1).

2. The pipeline air supply device for a pneumatic ash conveying system according to claim 1 is characterized in that: The elastic component is a tension spring (13), one end of which is fixedly connected to an outer wall of one side of the flow guide tube (2), and the other end of which is fixedly connected to one side of the connecting rod (7).

3. The pipeline air supply device for a pneumatic ash conveying system according to claim 1 is characterized in that: The adjustment mechanism comprises a fixing ring (3) which is fixedly connected to the circumferential outer wall of the connecting tube (1); one side of the fixing ring (3) is rotatably connected to a screw rod (4); a slip ring (5) is sleeved on the circumferential outer wall of the connecting tube (1); one end of the screw rod (4) passes through the slip ring (5) and is threadedly connected to the slip ring (5).

4. The pipeline air supply device for a pneumatic ash conveying system according to claim 1 is characterized in that: A groove is formed on the inner circumferential wall of the slide groove (18), a sealing ring (15) is bonded in the groove, and the sealing ring (15) is in contact with the outer circumferential wall of the slide tube (14).

5. The pipeline air supply device for a pneumatic ash conveying system according to claim 1 is characterized in that: The length of the slide pipe (14) is not less than the distance from the leftmost side of the avoidance groove (16) to the rightmost side of the slide groove (18).

6. The pipeline air supply device for a pneumatic ash conveying system according to claim 1 is characterized in that: Both ends of the connecting pipe (1) are fixedly connected with flanges (11), and one side of the two flanges (11) is bonded with a rubber pad (10).

7. The pipeline air supply device for a pneumatic ash conveying system according to claim 6 is characterized in that: Both ends of the connecting pipe (1) are fixedly connected to a plurality of evenly distributed fixing blocks (9), and the fixing blocks (9) are fixed to the flanges (11).

Images