Anti-blocking pneumatic ash conveying pipeline

Abstract

The utility model relates to the technical field of calcium carbide furnaces, in particular to an anti-blocking pneumatic ash conveying pipeline which comprises a first ash conveying pipe section, an anti-blocking pipe section, a second ash conveying pipe section and an ash blocking device, the ash blocking device comprises an ash blocking ring, an ash blocking net and an ash blocking flange, the ash blocking flange is fixedly installed on the outer side of the ash blocking ring, and the ash blocking net is installed on the inner side of the ash blocking ring; the right end of the first ash conveying pipe section and the left end of the anti-blocking pipe section are fixedly installed together through flange connection, and the right end of the anti-blocking pipe section, the ash blocking flange and the left end of the second ash conveying pipe section are fixedly installed together through flange connection. The pneumatic ash conveying device is reasonable and compact in structure and convenient to use, foreign matters such as ash blocks are intercepted in the anti-blocking pipe section by arranging the ash blocking net, the foreign matters such as the ash blocks are scattered by utilizing nitrogen washing during pneumatic ash conveying, and normal operation of pneumatic ash conveying is guaranteed; tar separated out from purified ash is intercepted through the ash blocking net, smooth pneumatic ash conveying operation can be guaranteed after the ash blocking net is regularly cleaned, and the pneumatic ash conveying device has the advantages of being rapid, efficient and stable.

Description

Technical Field

[0001] The utility model relates to the technical field of calcium carbide furnaces, and is an anti-blocking pneumatic ash conveying pipeline. Background Art

[0002] In the calcium carbide industry, the calcium carbide furnace device operates in a long cycle. The calcium carbide furnace purification system purifies the tail gas of the calcium carbide furnace, prevents the tail gas from being discharged into the atmosphere to cause environmental pollution, and uses the purified tail gas as fuel for secondary utilization. Because a large amount of purified ash is generated during the tail gas purification process, and since the purified ash adheres to a large amount of tar, there is a situation where the purified ash blocks the main pipe during the ash conveying of the purified ash pneumatic ash conveying device. When the conveyance of the purified ash is not smooth, caking, and adhesion to the pipe wall occur frequently, the purification system is forced to stop for maintenance. Summary of the Invention

[0003] The utility model provides an anti-blocking pneumatic ash conveying pipeline, which overcomes the above-mentioned deficiencies of the prior art and can effectively solve the problem of difficult maintenance after the ash conveying pipeline in the existing calcium carbide furnace purification system is blocked.

[0004] The technical solution of the utility model is realized by the following measures: An anti-blocking pneumatic ash conveying pipeline includes a first ash conveying pipe section, an anti-blocking pipe section, a second ash conveying pipe section, and a dust blocking device. The dust blocking device includes a dust blocking ring, a dust blocking net, and a dust blocking flange. A dust blocking flange is fixedly installed on the outer side of the dust blocking ring, and a dust blocking net is installed on the inner side of the dust blocking ring. The right end of the first ash conveying pipe section and the left end of the anti-blocking pipe section are fixedly installed together by flange connection. The right end of the anti-blocking pipe section, the dust blocking flange, and the left end of the second ash conveying pipe section are fixedly installed together by flange connection.

[0005] The following is a further optimization and / or improvement of the above-mentioned technical solution of the utility model:

[0006] The above-mentioned dust blocking device may further include dust blocking ribs. The inner side of the right end of the dust blocking ring is fixedly installed with dust blocking ribs located on the right side of the dust blocking net, and the dust blocking ribs are in a Y shape.

[0007] The above-mentioned dust blocking device may further include installation ears. A plurality of installation ears are arranged at intervals along the circumference on the outer side of the dust blocking net. An installation ring groove is provided on the inner side of the middle part of the dust blocking ring, and an installation notch communicating with the installation ring groove is provided on the left side of the dust blocking ring corresponding to each installation ear position.

[0008] The above-mentioned may further include a sealing gasket. A sealing gasket is provided between the right end of the anti-blocking pipe section and the dust blocking flange, and a sealing gasket is provided between the dust blocking flange and the left end of the second ash conveying pipe section.

[0009] The above-mentioned may further include a maintenance window. A maintenance opening is provided on the outer side of the middle part of the anti-blocking pipe section, and a maintenance window is installed on the outer side of the anti-blocking pipe section corresponding to the maintenance opening position.

[0010] The structure of the utility model is reasonable and compact, and it is convenient to use. By setting up a dust blocking net, foreign matters such as ash blocks are intercepted in the anti-blocking pipe section. Utilizing the nitrogen flushing during pneumatic ash conveying, the ash blocks and other foreign matters are dispersed to ensure the normal operation of pneumatic ash conveying. The purified ash separated tar is intercepted by the dust blocking net. After regularly cleaning the dust blocking net, the smooth operation of pneumatic ash conveying can be ensured. By setting the installation method of flange connection, it is convenient to remove the anti-blocking pipe section and clean the foreign matters such as ash blocks and tar lumps intercepted by the dust blocking device, which has the characteristics of fast, efficient and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attached Figure 1 is the front view structural schematic diagram of Embodiments 1 to 5 of the utility model.

[0012] Attached Figure 2 is Figure 1 the enlarged right view structural schematic diagram of the dust blocking device in the attached figure.

[0013] The codes in the attached drawings are respectively: 1 is the first ash conveying pipe section, 2 is the anti-blocking pipe section, 3 is the second ash conveying pipe section, 4 is the dust blocking ring, 5 is the dust blocking net, 6 is the dust blocking flange, 7 is the dust blocking rib, 8 is the sealing gasket, and 9 is the maintenance window. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The utility model is not limited by the following embodiments, and the specific implementation manners can be determined according to the technical solutions of the utility model and the actual situation.

[0015] In the utility model, for the convenience of description, the description of the relative position relationship of each component is carried out according to the layout mode of the attached drawings of the specification, such as: the position relationships of front, back, up, down, left, right, etc. are determined according to the layout direction of the attached drawings of the specification. Figure 1 The position relationships of front, back, up, down, left, right, etc. are determined according to the layout direction of the attached drawings of the specification.

[0016] The following further describes the utility model in conjunction with the embodiments and the attached drawings:

[0017] Embodiment 1: As shown in the attached Figure 1 , 2As shown in the figure, the anti-blocking pneumatic ash conveying pipeline includes a first ash conveying pipe section 1, an anti-blocking pipe section 2, a second ash conveying pipe section 3 and a dust blocking device. The dust blocking device includes a dust blocking ring 4, a dust blocking net 5 and a dust blocking flange 6. A dust blocking flange 6 is fixedly installed on the outer side of the dust blocking ring 4, and a dust blocking net 5 is installed on the inner side of the dust blocking ring 4. The right end of the first ash conveying pipe section 1 and the left end of the anti-blocking pipe section 2 are fixedly installed together through flange connection. The right end of the anti-blocking pipe section 2, the dust blocking flange 6 and the left end of the second ash conveying pipe section 3 are fixedly installed together through flange connection. During the use process, by setting the dust blocking net 5, foreign matters such as ash blocks are intercepted in the anti-blocking pipe section 2, and the nitrogen flushing during pneumatic ash conveying is used to disperse the foreign matters such as ash blocks, ensuring the normal operation of pneumatic ash conveying. And the tar separated from the purified ash is intercepted by the dust blocking net 5. After regularly cleaning the dust blocking net 5, the smooth operation of pneumatic ash conveying can be ensured. By setting the installation method of flange connection, it is convenient to remove the anti-blocking pipe section 2 and clean the foreign matters such as ash blocks and tar lumps intercepted by the dust blocking device, effectively solving the problem of difficult maintenance after the ash conveying pipeline is blocked in the existing calcium carbide furnace purification system.

[0018] According to actual needs, the above anti-blocking pneumatic ash conveying pipeline can be further optimized and / or improved as follows:

[0019] Embodiment 2: As shown in the appendix Figure 1 、 2 As shown in the figure, the dust blocking device further includes a dust blocking rib 7. A dust blocking rib 7 located on the right side of the dust blocking net 5 is fixedly installed on the inner side of the right end of the dust blocking ring 4, and the dust blocking rib 7 is in a Y shape. During the use process, by setting the dust blocking rib 7 to support the dust blocking net 5, the strength of the dust blocking net 5 is enhanced.

[0020] Embodiment 3: As shown in the appendix Figure 1 、 2 As shown in the figure, the dust blocking device further includes mounting ears. A plurality of mounting ears are arranged at intervals along the circumference on the outer side of the dust blocking net 5. An installation ring groove is provided on the inner side of the middle part of the dust blocking ring 4, and an installation notch communicating with the installation ring groove is provided on the left side of the dust blocking ring 4 corresponding to each mounting ear position. During the use process, through such a setting, it is convenient to regularly replace the dust blocking net 5. In addition, when installing the dust blocking net 5, the mounting ears can be made to correspond to the installation notches. After the mounting ears enter the installation ring groove, the mounting ears are rotated to be misaligned with the installation notches, so as to realize the quick installation of the dust blocking net 5.

[0021] Embodiment 4: As shown in the appendix Figure 1 As shown in the figure, it further includes a sealing gasket 8. A sealing gasket is provided between the right end of the anti-blocking pipe section 2 and the dust blocking flange 6, and a sealing gasket 8 is provided between the dust blocking flange 6 and the left end of the second ash conveying pipe section 3. During the use process, by using the sealing gasket 8 for sealing when installing the anti-blocking pipe section 2, air leakage is prevented from causing equipment failures. According to requirements, the sealing gasket 8 can be an asbestos sealing gasket.

[0022] Embodiment 5: As shown in the appendix Figure 1As shown in the figure, it further includes an inspection window 9. An inspection opening is provided on the outer side of the middle part of the anti-blocking pipe section 2, and an inspection window 9 is installed on the outer side of the anti-blocking pipe section 2 corresponding to the position of the inspection opening. During use, by setting the inspection window 9, foreign matters such as ash blocks and tar lumps blocking the ash conveying pipeline can be taken out without disassembling the flange.

[0023] The above technical features constitute the best embodiment of the present utility model, which has strong adaptability and the best implementation effect. Non-essential technical features can be increased or decreased according to actual needs to meet the requirements of different situations.

Claims

1. A clogging-proof pneumatic ash conveying pipeline, characterized in that It includes a first ash conveying pipe section, an anti-blocking pipe section, a second ash conveying pipe section and a dust blocking device. The dust blocking device includes a dust blocking ring, a dust blocking net and a dust blocking flange. A dust blocking flange is fixedly installed on the outer side of the dust blocking ring, and a dust blocking net is installed on the inner side of the dust blocking ring; the right end of the first ash conveying pipe section and the left end of the anti-blocking pipe section are fixedly installed together through flange connection, and the right end of the anti-blocking pipe section, the dust blocking flange and the left end of the second ash conveying pipe section are fixedly installed together through flange connection.

2. The anti-blocking pneumatic ash conveying pipeline according to claim 1, wherein The dust blocking device further includes dust blocking ribs. The dust blocking ribs are fixedly installed on the inner side of the right end of the dust blocking ring and are located on the right side of the dust blocking net. The dust blocking ribs are in a Y shape.

3. The anti-blocking pneumatic ash conveying pipeline according to claim 1 or 2, characterized in that The dust blocking device further includes mounting ears. A plurality of mounting ears are arranged at intervals along the circumference on the outer side of the dust blocking net. An installation ring groove is provided on the inner side of the middle part of the dust blocking ring. Installation notches communicating with the installation ring groove are provided on the left side of the dust blocking ring corresponding to each mounting ear position.

4. The anti-blocking pneumatic ash conveying pipeline according to claim 1 or 2, characterized in that It further includes a gasket. A gasket is provided between the right end of the anti-blocking pipe section and the dust blocking flange, and a gasket is provided between the dust blocking flange and the left end of the second ash conveying pipe section.

5. The anti-blocking pneumatic ash conveying pipeline according to claim 3, characterized in that It further includes a gasket. A gasket is provided between the right end of the anti-blocking pipe section and the dust blocking flange, and a gasket is provided between the dust blocking flange and the left end of the second ash conveying pipe section.

6. The anti-blocking pneumatic ash conveying pipeline according to claim 1 or 2 or 5, characterized in that It further includes a maintenance window. A maintenance opening is provided on the outer side of the middle part of the anti-blocking pipe section, and a maintenance window is installed on the outer side of the anti-blocking pipe section corresponding to the maintenance opening position.

7. The anti-blocking pneumatic ash conveying pipeline according to claim 3, characterized in that It further includes a maintenance window. A maintenance opening is provided on the outer side of the middle part of the anti-blocking pipe section, and a maintenance window is installed on the outer side of the anti-blocking pipe section corresponding to the maintenance opening position.

8. The anti-blocking pneumatic ash conveying pipeline according to claim 4, wherein It further includes a maintenance window. A maintenance opening is provided on the outer side of the middle part of the anti-blocking pipe section, and a maintenance window is installed on the outer side of the anti-blocking pipe section corresponding to the maintenance opening position.

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