Anti-blocking pneumatic ash conveying pipeline

Abstract

The utility model relates to a conveying ash pipeline technical field especially prevents a kind of air conveying ash pipeline to block, including first connecting pipe, first connecting pipe one end is connected with elbow, the elbow upper end intercommunication is provided with second connecting pipe, the lower end position of the outside of elbow is intercommunication and is provided with collecting pipe, first ball valve and second ball valve are arranged on the collecting pipe, and the collecting pipe between first ball valve and second ball valve forms storage part.The utility model avoids the situation that elbow is blocked, and when needing to discharge fly ash in collecting pipe, only need to close first ball valve and open second ball valve, so that cleaning without stopping is not needed.

Description

Technical Field

[0001] This utility model relates to the field of ash conveying pipeline technology, and in particular to an anti-clogging pneumatic ash conveying pipeline. Background Technology

[0002] When transporting fly ash, a high-pressure airflow is used in conjunction with an ash conveying pipeline. The fly ash is transported by high-pressure gas in the pipeline, which prevents dust from overflowing and avoids environmental pollution. At the same time, it is not limited by terrain, can cross obstacles, and achieve automatic conveying, which greatly reduces manual labor.

[0003] However, because the ash conveying pipeline sometimes needs to change its conveying direction to convey upwards, there will be bends in the ash conveying pipeline. When the fly ash is conveyed, it will hit the outer wall of the bend, causing the fly ash to lose kinetic energy and separate from the airflow. At the same time, at the bend, the fly ash is easily subjected to centrifugal force, causing the fly ash to be thrown outwards. Due to gravity, the fly ash is prone to accumulate at the bend. Long-term accumulation can easily cause blockage of the ash conveying pipeline, affecting the conveying of fly ash. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of the existing technology, which easily leads to the accumulation of fly ash at bends, thereby causing blockage of the ash conveying pipeline, and to propose an anti-blockage pneumatic ash conveying pipeline.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Design a clog-resistant pneumatic ash conveying pipeline, including a first connecting pipe, one end of which is connected to a bend, the upper end of which is connected to a second connecting pipe, and the lower outer end of which is connected to a collecting pipe. The collecting pipe is equipped with a first ball valve and a second ball valve, and the collecting pipe between the first ball valve and the second ball valve forms a storage section.

[0007] Preferably, the inner walls of the first connecting pipe, the second connecting pipe, and the bend are all provided with a wear-resistant layer.

[0008] Preferably, a funnel is fixedly connected to the inner wall of the upper end of the collecting tube, and the lower end of the funnel is positioned downwards.

[0009] Preferably, both the first ball valve and the second ball valve are wear-resistant ball valves.

[0010] Preferably, a fixing rod is provided through the rotating handle of both the first ball valve and the second ball valve, and a fixing ring is fixedly connected to the collecting pipe. The fixing ring is coaxial with the rotating handle, and two fixing holes are provided on the fixing ring. The two fixing holes are at 90° apart, and the fixing rod is inserted into one of the fixing holes.

[0011] Preferably, the inner wall of the collection tube is provided with a non-stick layer.

[0012] Preferably, a retaining ring is fixedly connected to the fixed rod, the retaining ring is located between the rotating handle and the fixed ring, and the outer diameter of the retaining ring is larger than the inner diameter of the fixed hole.

[0013] Preferably, the radius of curvature of the bend is greater than three times the diameter of the bend.

[0014] Preferably, a connecting cover is fixedly connected to the lower end of the collecting tube, and the diameter of the lower end of the connecting cover is smaller than the diameter of the upper end.

[0015] Preferably, the non-stick layer is made of polytetrafluoroethylene coating.

[0016] The present invention proposes an anti-clogging pneumatic ash conveying pipeline with the following advantages: when fly ash accumulates in the bend, it will slide into the collection pipe under the action of gravity, thus ensuring that the bend is in a conductive state and avoiding blockage. When it is necessary to discharge fly ash from the collection pipe, it is only necessary to close the first ball valve and open the second ball valve, thus eliminating the need for shutdown and cleaning. At the same time, the wear-resistant layer is set to improve the wear resistance of the pipeline and extend its service life. In addition, the use of wear-resistant ball valves ensures a sealing effect and prevents air leakage, which is beneficial to the conveying of fly ash. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an anti-clogging pneumatic ash conveying pipeline proposed in this utility model;

[0018] Figure 2 A three-dimensional cross-sectional view of the collection pipe for an anti-clogging pneumatic ash conveying pipeline proposed in this utility model. Figure 1 ;

[0019] Figure 3 A three-dimensional cross-sectional view of the collection pipe for an anti-clogging pneumatic ash conveying pipeline proposed in this utility model. Figure 2 ;

[0020] Figure 4 This utility model proposes an anti-clogging pneumatic ash conveying pipeline. Figure 3 Enlarged view of section A.

[0021] In the diagram: 1. First connecting pipe; 2. Second connecting pipe; 3. Bend; 4. Collection pipe; 5. Connecting cover; 6. Storage section; 7. Funnel; 8. Fixing ring; 9. Fixing hole; 10. First ball valve; 11. Second ball valve; 12. Fixing rod; 13. Retaining ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1: Refer to Figure 1-4 A clog-resistant pneumatic ash conveying pipeline includes a first connecting pipe 1, one end of which is connected to a bend 3. A second connecting pipe 2 is connected to the upper end of the bend 3, and a collection pipe 4 is connected to the lower outer end of the bend 3. A first ball valve 10 and a second ball valve 11 are installed on the collection pipe 4, spaced apart. The collection pipe 4 between the first ball valve 10 and the second ball valve 11 forms a storage section 6. The first ball valve 10 is normally open during use, and the second ball valve 11 is normally closed during use. When fly ash accumulates in the bend 3, it will slide into the collection pipe 4 under the action of gravity, thus ensuring that the bend 3 is in a conductive state and avoiding blockage caused by fly ash deposition. When it is necessary to discharge fly ash from the collection pipe 4, it is only necessary to close the first ball valve 10 and open the second ball valve 11, thus eliminating the need for shutdown and cleaning.

[0024] The inner walls of the first connecting pipe 1, the second connecting pipe 2, and the bend 3 are all provided with a wear-resistant layer. The wear-resistant layer is made of ceramic material, which has extremely high Rockwell hardness. Its wear resistance is more than dozens of times that of manganese steel. It effectively resists the micro-cutting and impact wear generated when fly ash particles continuously pass through, which helps to improve the wear resistance of the pipeline and extend the service life of the pipeline.

[0025] A funnel 7 is fixedly connected to the inner wall of the upper end of the collection pipe 4. The lower end of the funnel 7 is set downward to guide the fly ash smoothly into the collection pipe 4 and avoid accumulation at the pipe opening.

[0026] Both the first ball valve 10 and the second ball valve 11 are wear-resistant ball valves. Since fly ash wears down the sealing surface of ordinary valves, it can easily affect the sealing effect of the valves, leading to air leakage in the pipeline, which in turn affects the transportation of fly ash. Therefore, wear-resistant ball valves are used. Wear-resistant ball valves have good wear resistance, which helps to prevent wear, ensures the sealing effect, prevents air leakage, and facilitates the transportation of fly ash.

[0027] Example 2: In Example 1, although a first ball valve 10 and a second ball valve 11 were used for sealing, the sealing requirements were high. If the valves were not fully closed, air leakage would occur, affecting the transport of fly ash. (Refer to...) Figure 1-4 In another preferred embodiment of this utility model, based on embodiment 1, the rotating handles of the first ball valve 10 and the second ball valve 11 are provided with through holes, and the fixing rod 12 passes through the through holes. The end of the fixing rod 12 is provided with anti-slip texture, which helps to increase the friction between the fixing rod 12 and the palm. A fixing ring 8 is fixedly connected to the collecting tube 4. The fixing ring 8 is coaxially arranged with the rotating handle. The fixing ring 8 is provided with two fixing holes 9, which are 90° apart. The fixing holes 9 correspond to the open and closed states of the valve, respectively. The fixing rod 12 is inserted into one of the fixing holes 9. By adopting the design of fixing holes 9 and fixing rod 12, the fixing rod 12 is inserted into different fixing holes 9 to correspond to different states of the valve, ensuring that the valve can be completely closed, thereby avoiding air leakage.

[0028] The inner wall of the collection pipe 4 is provided with a non-stick layer, which is made of polytetrafluoroethylene coating. This ensures that the collected ash can smoothly slide down to the bottom storage area under the action of gravity, thereby maintaining the long-term unobstructed flow of the collection channel. The inner walls of the connecting cover 5 and the funnel 7 are also provided with non-stick layers to prevent fly ash from adhering.

[0029] Example 3: Reference Figure 1-4 In another preferred embodiment of this utility model, based on embodiment 2, a retaining ring 13 is fixedly connected to the fixing rod 12. The retaining ring 13 is located between the rotating handle and the fixing ring 8. The outer diameter of the retaining ring 13 is larger than the inner diameter of the fixing hole 9. The retaining ring 13 serves to limit the fixing rod 12, preventing the fixing rod 12 from disengaging from the through hole on the rotating handle and avoiding the loss of the fixing rod 12. When rotating the rotating handle, it is only necessary to disengage the fixing rod 12 from the fixing hole 9. When fixing, the fixing rod 12 is then inserted into the corresponding fixing hole 9.

[0030] The radius of curvature of bend 3 is greater than three times the diameter of bend 3, which reduces the flow resistance of fly ash at bend 3 and reduces the risk of accumulation and blockage.

[0031] Example 4: Reference Figure 1-4 In another preferred embodiment of this utility model, based on embodiment 3, a connecting cover 5 is fixedly connected to the lower end of the collecting pipe 4. The lower diameter of the connecting cover 5 is smaller than the upper diameter, which can collect the falling fly ash and prevent dust from escaping during discharge. It also allows for the use of a ash collection bag fitted over the lower end of the connecting cover 5 to collect the fly ash.

[0032] When in use, when fly ash accumulates in the bend 3, it will slide into the collection pipe 4 under the action of gravity. When it is necessary to discharge the fly ash in the collection pipe 4, the first ball valve 10 is closed and the second ball valve 11 is opened. The collection container is then connected to the lower end of the connecting cover 5. After the ash is discharged, the second ball valve 11 is closed and the first ball valve 10 is opened.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A clog-resistant pneumatic ash conveying pipeline, comprising a first connecting pipe (1), characterized in that, One end of the first connecting pipe (1) is connected to a bend pipe (3), the upper end of the bend pipe (3) is connected to a second connecting pipe (2), the lower outer end of the bend pipe (3) is connected to a collection pipe (4), the collection pipe (4) is equipped with a first ball valve (10) and a second ball valve (11), and the collection pipe (4) between the first ball valve (10) and the second ball valve (11) forms a storage section (6).

2. The anti-clogging pneumatic ash conveying pipeline according to claim 1, characterized in that, The inner walls of the first connecting pipe (1), the second connecting pipe (2), and the bend (3) are all provided with a wear-resistant layer.

3. The anti-clogging pneumatic ash conveying pipeline according to claim 1, characterized in that, A funnel (7) is fixedly connected to the inner wall of the upper end of the collection tube (4), and the lower end of the funnel (7) is set downward.

4. The anti-clogging pneumatic ash conveying pipeline according to claim 1, characterized in that, Both the first ball valve (10) and the second ball valve (11) are wear-resistant ball valves.

5. The anti-clogging pneumatic ash conveying pipeline according to claim 1, characterized in that, A fixing rod (12) is provided through the rotating handle of the first ball valve (10) and the second ball valve (11). A fixing ring (8) is fixedly connected to the collecting pipe (4). The fixing ring (8) is coaxially arranged with the rotating handle. Two fixing holes (9) are opened on the fixing ring (8). The two fixing holes (9) are at 90° apart. The fixing rod (12) is inserted into one of the fixing holes (9).

6. The anti-clogging pneumatic ash conveying pipeline according to claim 5, characterized in that, The inner wall of the collection tube (4) is provided with a non-stick layer.

7. A clog-resistant pneumatic ash conveying pipeline according to claim 5, characterized in that, A retaining ring (13) is fixedly connected to the fixed rod (12). The retaining ring (13) is located between the rotating handle and the fixed ring (8). The outer diameter of the retaining ring (13) is larger than the inner diameter of the fixed hole (9).

8. The anti-clogging pneumatic ash conveying pipeline according to claim 1, characterized in that, The radius of curvature of the bend (3) is greater than three times the diameter of the bend (3).

9. A clog-resistant pneumatic ash conveying pipeline according to claim 8, characterized in that, The lower end of the collecting tube (4) is fixedly connected to a connecting cover (5), and the lower diameter of the connecting cover (5) is smaller than the upper diameter.

10. A clog-resistant pneumatic ash conveying pipeline according to claim 6, characterized in that, The non-stick layer is made of polytetrafluoroethylene coating.

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