Filtering device of ash beating pipe

Abstract

The utility model relates to a filter device of an ash beating pipe in the field of ash beating pipes. The filter device comprises an upper pipe body, a lower pipe body, a screen, a compressed air pipe, a joint, an upper flange and a lower flange, the screen is arranged between the upper pipe body and the lower pipe body; the joints are respectively welded on two sides of the upper pipe body; the compressed air pipe is connected with the upper pipe body through a joint; and the upper flange and the lower flange are jointed and butted. The filtering device is additionally arranged in the mineral powder storage pipeline, so that foreign matters such as metal scraps and fibers mixed in mineral powder are effectively intercepted, the risk that the foreign matters enter a production system is remarkably reduced, cement component deviation caused by the foreign matters is reduced, and the stability and the consistency of the quality of finished products are guaranteed; compressed air blowback is integrated, impurities intercepted by the filter screen are automatically removed in the conveying process, frequent manual cleaning is avoided, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of ash-filling pipes, and more particularly to a filtration device for ash-filling pipes. Background Technology

[0002] In cement production, mineral powder, as a crucial ingredient, needs to be stored in silos via a pneumatic conveying system. Current technology typically uses bulk tank trucks to transport the mineral powder, utilizing the internal air pressure to directly press it into the silo via rubber conveying pipes connected to seamless steel pipes. While this technology can improve mill efficiency, reduce power consumption, and increase output, it has significant drawbacks:

[0003] 1. Mineral powder raw materials may contain foreign objects such as metal shavings and woven fabric fragments. These impurities lack effective filtration methods during transportation and can easily lead to fluctuations in the quality of finished cement products after entering the production system, or even cause quality accidents such as abnormal setting time.

[0004] 2. Existing solutions mainly rely on manual inspections and spot checks, which have problems such as delayed detection and high missed detection rate, making it difficult to continuously ensure the purity of raw materials. Utility Model Content

[0005] The purpose of this invention is to address the above-mentioned problems in the prior art by proposing a filtration device for ash-collecting pipes.

[0006] A filtration device for ash-collecting pipes includes an upper pipe body, a lower pipe body, a screen, a compressed air pipe, a connector, an upper flange, and a lower flange;

[0007] The screen is disposed between the upper tube and the lower tube;

[0008] The joints are welded to both sides of the upper pipe body;

[0009] The compressed air pipe is connected to the upper pipe body via a connector;

[0010] The upper flange and the lower flange are fitted together.

[0011] Furthermore, a filtration device for ash removal pipes, wherein the screen is made of stainless steel and consists of several mesh holes, the mesh holes being hexagonal in shape and having a side length of less than 1 cm.

[0012] Furthermore, a filtration device for a dust removal pipe, wherein the screen is welded to the upper surface of the lower flange.

[0013] Furthermore, a filtration device for ash-spraying pipes, wherein the number of compressed air pipes is two.

[0014] Furthermore, in a filtration device for a dust removal pipe, the upper flange and the lower flange further include through holes, bolts, and nuts;

[0015] The upper flange and the lower flange are connected by bolts passing through the through holes on the upper flange and the lower flange, respectively.

[0016] Furthermore, in a filtration device for a dust removal pipe, the upper flange and the lower flange are fixed to the ends of bolts by screwing nuts on them.

[0017] Furthermore, in a ash-dampening pipe filtration device, the upper pipe body and the lower pipe body are connected and communicated via an upper flange and a lower flange.

[0018] The beneficial effects of this utility model are as follows: By adding a filter device to the mineral powder inlet pipeline, the metal fragments, fibers and other foreign objects mixed in the mineral powder are effectively intercepted, significantly reducing the risk of impurities entering the production system, reducing the deviation of cement composition caused by foreign objects, and ensuring the stability and consistency of finished product quality; the integrated compressed air backflushing automatically removes the impurities trapped by the filter screen during the conveying process, avoiding frequent manual cleaning and reducing maintenance costs; the closed filter structure combined with the negative pressure dust removal design reduces dust emission during operation and improves the working environment. Attached Figure Description

[0019] Figure 1 This is a structural diagram of a ash-collecting filter device.

[0020] Figure 2 This is a cross-sectional view of a ash-spraying filter device.

[0021] Figure 3 This is a schematic diagram of a filtration device for dust collection pipes.

[0022] In the diagram: 1-Upper pipe body, 2-Lower pipe body, 3-Screen, 4-Compressed air pipe, 5-Connector, 6-Upper flange, 7-Lower flange, 8-Bolt, 9-Nut, 10-Mesh hole, 11-Mineral powder. Detailed Implementation

[0023] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0024] As attached Figures 1-2 As shown, a filtration device for ash-collecting pipes includes an upper pipe body 1, a lower pipe body 2, a screen 3, a compressed air pipe 4, a connector 5, an upper flange 6, and a lower flange 7.

[0025] The screen 3 is disposed between the upper tube 1 and the lower tube 2;

[0026] The joints 5 are welded to both sides of the upper pipe body 1 respectively;

[0027] The compressed air pipe 4 is connected to the upper pipe body 1 via a connector 5;

[0028] The upper flange 6 and the lower flange 7 are fitted together.

[0029] Furthermore, in a filtration device for ash removal pipes, the screen 3 is made of stainless steel and consists of several mesh holes 10, which are hexagonal in shape and have a side length of less than 1 cm.

[0030] Furthermore, a filtration device for a dust removal pipe, wherein the screen 3 is welded to the upper surface of the lower flange 7.

[0031] Furthermore, in a ash-filtering device, the number of compressed air pipes 4 is 2.

[0032] Furthermore, in a filtration device for a dust removal pipe, the upper flange 6 and the lower flange 7 also include through holes, bolts 8, and nuts 9;

[0033] The upper flange 6 and the lower flange are connected by bolts 8 passing through the through holes on the upper flange 6 and the lower flange, respectively.

[0034] Furthermore, in a ash-drying pipe filtration device, the upper flange 6 and the lower flange are fixed to the end of the bolt 8 by screwing on the nut 9.

[0035] Furthermore, in a ash-dampening pipe filtration device, the upper pipe body 1 and the lower pipe body 2 are connected by an upper flange 6 and a lower flange.

[0036] As attached Figure 3 As shown, a filtration device for a cement ash pipe operates on the following principle: one end of the compressed air pipe 4 is connected to a compressed air tank, and the other end is connected to an upper pipe body 1. Mineral powder 11 enters the lower pipe body 2 in the direction of the arrow. When impurities are present, they are retained or stuck by the screen 3. After a period of time, the impurities are cleaned. The pressure from the compressed air tank enters the upper pipe body 1 through the compressed air pipe 4 in the direction of the arrow, forcing the impurities back into the material at the bottom of the tank. This ensures that the mesh of the screen 3 allows the mineral powder 11 to enter the upper pipe body 1, preventing impurities from entering the cement along with the mineral powder 11 and causing quality accidents.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A filtering device for a duster duct, characterized in that, The utility model relates to a kind of air filter, including upper tube body (1), lower tube body (2), screen (3), compressed air pipe (4), joint (5), upper flange (6), lower flange (7); The screen (3) is arranged between the upper tube body (1) and the lower tube body (2); The joint (5) is welded on both sides of the upper tube body (1) respectively; The compressed air pipe (4) is connected through the joint (5) and the upper tube body (1); The upper flange (6) and the lower flange (7) are butt jointed.

2. A filter device for a duster duct as claimed in claim 1, characterized in that The screen (3) is made of stainless steel, and the screen (3) is composed of a plurality of mesh holes (10). The mesh holes (10) are hexagonal, and the side length of the mesh holes (10) is less than 1 cm.

3. A filter device for a duster duct as claimed in claim 1, characterized in that The screen (3) is welded on the upper surface of the lower flange (7).

4. A filter device for a duster duct as claimed in claim 1, characterized in that The number of the compressed air pipe (4) is 2.

5. A filter assembly for a duster duct as defined in claim 1, wherein, The upper flange (6) and the lower flange (7) further include through holes, bolts (8) and nuts (9). The upper flange (6) and the lower flange are connected by the bolts (8) penetrating the through holes of the upper flange (6) and the lower flange respectively.

6. A filter assembly for a duster duct as defined in claim 5, wherein, The upper flange (6) and the lower flange are fixed by screwing the nuts (9) on the ends of the bolts (8).

7. A filter assembly for a duster duct as defined in claim 5, wherein, The upper tube body (1) and the lower tube body (2) are connected and communicated through the upper flange (6) and the lower flange.

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