Anti-expansion ceramic filter tube dust remover

Abstract

The utility model discloses an anti-expansion ceramic filter tube dust remover which comprises a box body, a pattern plate used for installing a ceramic filter tube is arranged in the box body, and the box body is connected with the pattern plate through an expansion plate. The box body comprises an upper box body and a middle box body, a platform part is arranged on the edge of the upper end of the middle box body, the pattern plate is placed on the platform part, one end of the expansion plate is fixedly connected with the box body, and the other end of the expansion plate is fixedly connected with the pattern plate. The anti-expansion ceramic filter tube dust remover can be used for dust removal of high-temperature flue gas, and the expansion plate is arranged between the box body and the pattern plate, so that the problem that the pattern plate is deformed due to deformation of the box body caused by high temperature and finally the ceramic filter tube is damaged can be avoided, and the working reliability of the ceramic filter tube dust remover at high temperature can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal equipment, in particular to an anti-expansion ceramic filter tube dust collector. Background Art

[0002] There are many industrial kilns in my country, and pollution emissions are serious. In particular, the high-temperature flue gas emitted by industrial kilns such as glass kilns, coke ovens, garbage incinerators, and cement kilns not only has a great impact on environmental pollution, but also brings certain difficulties to flue gas treatment. For the treatment of high-temperature flue gas from industrial kilns, traditional processes use high-temperature electrostatic precipitator technology to purify smoke, but in engineering applications, high-temperature electrostatic precipitators have problems such as porcelain bottle cracking, poor ash discharge, and reduced efficiency, which have many impacts on the efficient and stable operation of the system. The emergence of high-temperature ceramic filter tube dust removal technology has brought new technical directions to high-temperature flue gas treatment. High-temperature ceramic filter tube dust collectors have the characteristics of long service life, high filtration efficiency, and low operating costs.

[0003] However, high-temperature flue gas can easily cause the dust collector box to expand and contract due to heat, and the ceramic filter tube has the characteristics of rigidity and brittleness. If the dust collector plate is firmly fixed on the box, the high-temperature flue gas may cause the box to deform, and then the plate to deform, and finally cause the ceramic filter tube installed on the plate to break and damage. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide an anti-expansion ceramic filter tube dust collector to solve the problem of ceramic filter tube damage caused by deformation of the box body and the flower plate.

[0005] The utility model solves the above problems through the following technical means:

[0006] An anti-expansion ceramic filter tube dust collector comprises a box body, wherein a flower plate for installing the ceramic filter tube is arranged in the box body, and the box body and the flower plate are connected via an expansion plate.

[0007] Furthermore, the box body includes an upper box body and a middle box body, the upper edge of the middle box body is provided with a platform portion, the flower plate is placed on the platform portion, one end of the expansion plate is fixedly connected to the box body, and the other end is fixedly connected to the flower plate.

[0008] Furthermore, a venturi tube is provided in the ceramic filter tube, and the ceramic filter tube and the venturi tube are both fixedly connected to the flower plate through a pressing plate.

[0009] Furthermore, the pressing plate is connected to the flower plate by bolts, a gasket is provided between the end flange of the ceramic filter tube and the flower plate, and a distance sleeve is installed outside the bolts.

[0010] Furthermore, it also includes a pulse spray system, which includes an air bag, a pulse valve and a spray pipe. The spray pipe is provided with a plurality of nozzles, and each nozzle is correspondingly arranged above each ceramic filter tube.

[0011] Furthermore, the box body also includes an ash hopper, and the ash hopper is connected to a column through a ring beam.

[0012] Furthermore, an air inlet is provided on the lower side of the middle box body, an air outlet is provided on the top of the upper box body, and a flow equalizing plate is provided in the ash hopper and the middle box body.

[0013] Furthermore, a vibrator is provided in the ash hopper, and a gate valve is provided at the bottom of the ash hopper.

[0014] Furthermore, the ash hopper and the upper box body are both provided with inspection doors.

[0015] Furthermore, a maintenance platform is provided on the side of the box body.

[0016] The utility model has at least the following beneficial effects:

[0017] The anti-expansion ceramic filter tube dust collector of the utility model can be used for dust removal of high-temperature flue gas. Since an expansion plate is arranged between the box body and the flower plate, it can avoid the problem that the high temperature causes the box body to deform and the flower plate to deform, which ultimately leads to damage to the ceramic filter tube. The reliability of the ceramic filter tube dust collector working at high temperatures can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure disclosed in the preferred embodiment of the utility model;

[0020] Figure 2 This is a partial enlarged view of the flower plate connection area.

[0021] Figure numerals: 1. column; 2. ash hopper; 3. ring beam; 4. middle box; 5. first inspection door; 6. upper box; 7. air outlet; 8. canopy; 9. pressure plate; 10. expansion plate; 11. pulse injection system; 12. fixed distance sleeve; 13. flower plate; 14. bolt; 15. venturi tube; 16. ceramic filter tube; 17. air inlet; 18. flow equalizing plate; 19. inspection platform; 20. vibrator; 21. second inspection door; 22. gate valve; 23. stairs. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below through the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present invention will become clearer and more specific. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0023] like Figure 1 and Figure 2 As shown, an anti-expansion ceramic filter tube dust collector includes a box body and a column, and the box body is divided into an upper box body 6, a middle box body 4 and an ash hopper 2 from top to bottom. The ash hopper 2 is installed on the column 1 through a ring beam 3, and the column 1 supports the entire box body. A flower plate 13 is provided at the connection between the upper box body 6 and the middle box body 4, and a plurality of ceramic filter tubes 16 are installed in the flower plate 13. A platform part for placing the flower plate 13 is provided at the uppermost end of the middle box body 4. When the upper box body 6 is connected to the middle box body 4, the platform part at the upper end of the middle box body 4 is inside the box body, so that the flower plate 13 can be placed on the platform part. The flower plate 13 is connected to the box body through an expansion plate 10. Specifically, the expansion plate 10 has a roughly Z-shaped cross-section, one end of the expansion plate 10 is fixedly connected to the box body, and the other end is fixedly connected to the flower plate 13. The fixed connection method can be welding.

[0024] In the working process of the ceramic filter tube dust collector, although the flower plate 13 itself is less affected by thermal expansion, the high temperature flue gas may cause the box to deform. The flower plate 13 in the prior art is usually directly fixedly connected to the box. When the box is deformed, it will cause the flower plate 13 to deform, which may cause damage to the ceramic filter tube 16. The equipment of the utility model connects the flower plate 13 to the box through the expansion plate 10. The expansion plate 10 can offset the deformation of the box and avoid deformation of the flower plate 13, so as not to cause the ceramic filter tube 16 installed on the flower plate 13 to be broken or damaged.

[0025] refer to Figure 1 and Figure 2 In this embodiment, a venturi tube 15 is provided in the ceramic filter tube 16, and both the ceramic filter tube 16 and the venturi tube 15 are fixedly connected to the flower plate 13 through a pressing plate 9. Specifically, the pressing plate 9 is connected to the flower plate 13 through a bolt 14, and a gasket is further provided between the end flange of the ceramic filter tube 16 and the flower plate 13, and a distance sleeve 12 is installed outside the bolt 14.

[0026] refer to Figure 1 and Figure 2In this embodiment, the ceramic filter tube dust collector also includes a pulse spray system 11, and the pulse spray system 11 includes an air bag, a pulse valve and a spray pipe. There are multiple spray pipes, and each spray pipe is provided with multiple nozzles. Each spray pipe corresponds to a row of ceramic filter tubes 16, and each ceramic filter tube 16 has a corresponding nozzle above. The pulse spray system 11 is also provided with a programmable logic controller PLC or DCS connected to the pulse valve. As the dust on the surface of the filter tube continues to increase, the filtration resistance of the chamber increases. When the chamber pressure difference reaches the set value or runs to the set time, the programmable logic controller PLC or DCS sends a control start signal, and the compressed air is injected from the air bag of the pulse spray system 11 through the pulse valve from the nozzle on the spray pipe into the filter tube for spraying, so that the dust attached to the surface of the ceramic filter tube 16 falls into the ash hopper 2.

[0027] refer to Figure 1 In this embodiment, an air inlet 17 is provided on the lower side of the middle box body 4, an air outlet 7 is provided on the top of the upper box body 6, and a flow equalizer 18 is provided in the ash hopper 2 and the middle box body 4. The dust-containing flue gas passes through the flue from the air inlet 17 under the negative pressure of the fan and is turned upward by the flow equalizer 18. Large particles fall directly into the ash hopper 2 during the interaction with the flow equalizer 18, and the remaining particle dust is filtered from the outside of the filter tube to the inside of the filter tube. During the process of passing through the filter tube, a dust film of a dust layer is generated on the surface of the ceramic filter tube 16, and a filter bed is established. Dust removal and purification of flue gas are achieved under the mechanisms of inertial collision, interception, diffusion, and screening. The flow equalizer 18 is relatively common in dust collectors and will not be further described here.

[0028] refer to Figure 1 In this embodiment, a vibrator 20 is provided in the ash hopper 2, a second inspection door 21 is provided on the side wall of the ash hopper 2, and a gate valve 22 is provided at the bottom of the ash hopper 2. The inside of the ash hopper 2 can be inspected through the inspection door. After the pulse spraying system 11 finishes spraying, the filter tube returns to the filtering state. At this time, the gate valve 22 at the bottom of the ash hopper 2 can be opened to discharge the dust that has fallen into the ash hopper 2.

[0029] refer to Figure 1 In this embodiment, the upper box body 6 is also provided with a canopy 8, which is arranged above the pulse spray system 11 to block rain. The upper box body 6 is also provided with a first inspection door 5, which is convenient for inspecting the upper box body 6. A maintenance platform 19 is also provided on the side of the box body, and the maintenance platform 19 is connected to a staircase 23, which is convenient for maintenance personnel to maintain and inspect the device.

[0030] To sum up, the anti-expansion ceramic filter tube dust collector of this embodiment can be used for dust removal of high-temperature flue gas. Since an expansion plate is arranged between the box body and the flower plate, it can avoid the problem that the high temperature causes the box body to deform and the flower plate to deform, which ultimately leads to damage to the ceramic filter tube. It can improve the reliability of the ceramic filter tube dust collector working at high temperatures.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An anti-expansion ceramic filter tube dust collector, characterized in that: The invention comprises a box body, wherein a flower plate (13) for installing a ceramic filter tube (16) is arranged in the box body, and the box body and the flower plate (13) are connected via an expansion plate (10).

2. The anti-expansion ceramic filter tube dust collector according to claim 1 is characterized in that: The box body comprises an upper box body (6) and a middle box body (4); the upper edge of the middle box body (4) is provided with a platform portion, the flower plate (13) is placed on the platform portion, one end of the expansion plate (10) is fixedly connected to the box body, and the other end is fixedly connected to the flower plate (13).

3. The anti-expansion ceramic filter tube dust collector according to claim 2 is characterized in that: A venturi tube (15) is arranged in the ceramic filter tube (16), and the ceramic filter tube (16) and the venturi tube (15) are both fixedly connected to the flower plate (13) via a pressing plate (9).

4. The anti-expansion ceramic filter tube dust collector according to claim 3 is characterized in that: The pressure plate (9) is connected to the flower plate (13) via bolts (14), a gasket is provided between the end flange of the ceramic filter tube (16) and the flower plate (13), and a distance sleeve (12) is installed outside the bolts (14).

5. The anti-expansion ceramic filter tube dust collector according to claim 4, characterized in that: It also includes a pulse spray system (11), the pulse spray system (11) includes an air bag, a pulse valve and a spray pipe, the spray pipe is provided with a plurality of nozzles, and each nozzle is correspondingly arranged above each ceramic filter tube (16).

6. The anti-expansion ceramic filter tube dust collector according to claim 5, characterized in that: The box body also includes an ash hopper (2), and the ash hopper (2) is connected to the column (1) via a ring beam (3).

7. The anti-expansion ceramic filter tube dust collector according to claim 6, characterized in that: An air inlet (17) is provided at the lower side of the middle box body (4), an air outlet (7) is provided at the top of the upper box body (6), and a flow equalizing plate (18) is provided inside the ash hopper (2) and the middle box body (4).

8. The anti-expansion ceramic filter tube dust collector according to claim 7, characterized in that: A vibrator (20) is provided in the ash hopper (2), and a gate valve (22) is provided at the bottom of the ash hopper (2).

9. The anti-expansion ceramic filter tube dust collector according to claim 8, characterized in that: The ash hopper (2) and the upper box body (6) are both provided with inspection doors.

10. The anti-expansion ceramic filter tube dust collector according to claim 9, characterized in that: A maintenance platform (19) is provided on the side of the box body.

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