Double-layer manhole door of bag-type dust collector

Abstract

The utility model provides a double-layer manhole door of a bag-type dust collector, which relates to the technical field of double-layer manhole doors and comprises a shell, a heat insulation layer is fixedly mounted at the top end of the shell, a middle seat is fixedly mounted at the top end of the heat insulation layer, an inner hole door is fixedly mounted at the top end of the shell, and a handle A is fixedly mounted at the top end of the inner hole door. An inner door seat is fixedly installed on the surface of the inner hole door, an inner door cover is installed at the top end of the inner door seat, an inner door rotating shaft is fixedly installed at the top end of the inner door cover, an inner door swing bolt is fixedly installed at the top end of the inner door cover, and an inner door pin shaft is fixedly installed on the left side of the inner door seat. An outer hole door is fixedly mounted at the top end of the middle seat, so that a better use effect is achieved, and the situations that in the daily use process, due to design insufficiency and manufacturing defects, air leakage of a part of dust collector manholes is serious, the flue gas temperature of a bag-type dust collector is directly influenced, and the service life of a filter bag is influenced are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of double-layer manhole doors, in particular to a double-layer manhole door for a bag dust collector. Background Art

[0002] According to national standards, the air leakage rate of bag dust collectors should not exceed 2%. From the actual operation, sometimes the value of the filter bag differential pressure is still abnormal after the spraying, and the filter bag may have condensation and sticking. The air leakage rate is one of the external reasons for the sticking of the filter bag. The high air leakage rate of the bag dust collector is caused by the loose sealing of the manhole door of the dust collector, which causes the air leakage rate of the dust collector to be greater than 5%, causing the flue gas temperature to drop and condensation. The manhole door in the dust collector is mainly for maintenance personnel to enter the dust collector for inspection and maintenance. During use, due to insufficient design and manufacturing defects, some dust collectors have serious manhole leakage, which directly affects the flue gas temperature of the bag dust collector and the service life of the filter bag. The practicality is poor and needs to be improved. Utility Model Content

[0003] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0004] The utility model adopts the following technical scheme: a double-layer manhole door of a bag dust collector, comprising a shell, a heat-insulating layer is fixedly installed on the top of the shell, a middle seat is fixedly installed on the top of the heat-insulating layer, an inner hole door is fixedly installed on the top of the shell, a handle A is fixedly installed on the top of the inner hole door, an inner door seat is fixedly installed on the surface of the inner hole door, an inner door cover is fixedly installed on the top of the inner door seat, an inner door rotating shaft is fixedly installed on the top of the inner door cover, and an inner door is fixedly installed on the top of the inner door cover. An inner door pin is fixedly installed on the left side of the inner door seat, an outer door is fixedly installed on the top of the middle seat, a handle B is fixedly installed on the top of the outer door, a silicone strip is installed on the right side of the outer door, an outer door seat is fixedly installed on the surface of the outer door, an outer door shaft is fixedly installed on the top of the outer door seat, an outer door cover is fixedly installed on the bottom end of the outer door shaft, an outer door movable bolt is fixedly installed on the top of the outer door cover, and an outer door pin is fixedly installed on the top of the outer door seat.

[0005] Preferably, the material of the heat-insulating layer is aluminum silicate wool, and the outer hole door is welded to the inner hole door seat through the middle seat. Here, a better heat-insulating effect is achieved.

[0006] Preferably, the inner hole door is connected via an inner door rotating shaft, and the outer hole door is connected via an outer door rotating shaft. Here, it is more convenient for the inner hole door and the outer hole door to rotate.

[0007] Preferably, silicone rubber strips are installed around the inner door seat and the outer door seat to better improve the sealing effect.

[0008] Preferably, the inner door hinge bolt is slidably connected to the inner door pin shaft. Here, it is more convenient for the inner door hinge bolt to slide.

[0009] Preferably, the outer door hinge bolt is slidably connected to the outer door pin shaft. Here, it is more convenient for the outer door hinge bolt to slide.

[0010] Compared with the prior art, the advantages and positive effects of the utility model are:

[0011] The utility model achieves a better use effect by arranging an inner hole door, a handle A, an inner door seat, an inner door cover, an inner door shaft, an inner door hinge bolt, an inner door pin shaft, an outer hole door, a handle B, a silicone rubber strip, an outer door seat, an outer door shaft, an outer door cover, an outer door hinge bolt and an outer door pin shaft, thereby avoiding the situation in daily use where some dust collectors have serious air leakage in the manholes due to insufficient design and manufacturing defects, directly affecting the smoke temperature of the bag dust collector and affecting the service life of the filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of a double-layer manhole door of a bag dust collector is provided for the utility model;

[0013] Figure 2 The utility model provides a schematic diagram of the inner hole door of a double-layer manhole door of a bag dust collector;

[0014] Figure 3 The utility model provides a schematic diagram of inner and outer doors of a double-layer manhole door of a bag dust collector.

[0015] Legend:

[0016] 1. Shell; 2. Insulation layer; 3. Middle seat; 4. Inner door; 5. Handle A; 6. Inner door seat; 7. Inner door cover; 8. Inner door shaft; 9. Inner door hinge bolt; 10. Inner door pin; 11. Outer door; 12. Handle B; 13. Silicone rubber strip; 14. Outer door seat; 15. Outer door shaft; 16. Outer door cover; 17. Outer door hinge bolt; 18. Outer door pin. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0018] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0019] Embodiment 1

[0020] See also Figure 1-3The utility model provides a technical solution: a double-layer manhole door of a bag dust collector, comprising a shell 1, a heat preservation layer 2 is fixedly installed on the top of the shell 1, a middle seat 3 is fixedly installed on the top of the heat preservation layer 2, an inner hole door 4 is fixedly installed on the top of the shell 1, a handle A5 is fixedly installed on the top of the inner hole door 4, an inner door seat 6 is fixedly installed on the surface of the inner hole door 4, an inner door cover 7 is fixedly installed on the top of the inner door seat 6, an inner door shaft 8 is fixedly installed on the top of the inner door cover 7, an inner door hinge bolt 9 is fixedly installed on the top of the inner door cover 7, an inner door pin 10 is fixedly installed on the left side of the inner door seat 6, an outer hole door 11 is fixedly installed on the top of the middle seat 3, a handle B12 is fixedly installed on the top of the outer hole door 11, and the outer hole door 1 1 is installed with a silicone strip 13 on the right side, an outer door seat 14 is fixedly installed on the surface of the outer hole door 11, an outer door shaft 15 is fixedly installed on the top of the outer door seat 14, an outer door cover 16 is fixedly installed on the bottom end of the outer door shaft 15, an outer door hinge bolt 17 is fixedly installed on the top of the outer door cover 16, and an outer door pin 18 is fixedly installed on the top of the outer door seat 14. By arranging the inner hole door 4, the handle A5, the inner door seat 6, the inner door cover 7, the inner door shaft 8, the inner door hinge bolt 9, the inner door pin 10, the outer hole door 11, the handle B12, the silicone strip 13, the outer door seat 14, the outer door shaft 15, the outer door cover 16, the outer door hinge bolt 17 and the outer door pin 18, a better use effect is achieved, and the outer hole door 11, the outer door shaft 15, the outer door cover 16, the outer door hinge bolt 17 and the outer door pin 18 are avoided. In order to avoid the serious air leakage in the manholes of some dust collectors due to insufficient design and manufacturing defects during daily use, which directly affects the flue gas temperature of the bag dust collector and affects the service life of the filter bag, the material of the thermal insulation layer 2 is aluminum silicate wool, and the outer hole door 11 is welded to the door seat of the inner hole door 4 through the middle seat 3, which has a better thermal insulation effect and prevents the poor use effect due to poor thermal insulation effect during long-term use. The inner hole door 4 is connected through the inner door shaft 8, and the outer hole door 11 is connected through the outer door shaft 15, which makes it easier for the inner hole door 4 and the outer hole door 11 to rotate, and avoids the situation where the inner hole door 4 and the outer hole door 11 are stuck by the middle seat 3 and the inner hole door 4 and the outer hole door 11 cannot continue to rotate. , silicone strips 13 are installed around the inner door seat 6 and the outer door seat 14 to better improve the sealing effect and prevent the insulation effect from being reduced due to poor sealing effect during use. The inner door swing bolt 9 is slidably connected to the inner door pin shaft 10, which is more convenient for the inner door swing bolt 9 to slide and avoids the inner door swing bolt 9 being stuck by the inner door pin shaft 10 during use, resulting in the inner door swing bolt 9 being unable to continue sliding. The outer door swing bolt 17 is slidably connected to the outer door pin shaft 18, which is more convenient for the outer door swing bolt 17 to slide and prevents the outer door swing bolt 17 from being stuck by the outer door pin shaft 18 during use.

[0021] Working principle: When in use, first hold the handle B12 and pull it backwards to make the inner door joint bolt 9 slide out of the inner door pin shaft 10, and the inner door shaft 8 drives the inner door cover 7 to rotate on the top of the inner door seat 6, then hold the handle A5 and pull it backwards to make the outer door joint bolt 17 slide out of the inner door pin shaft 18, and the outer door shaft 15 drives the outer door cover 16 to rotate upward on the top of the outer door seat 14, then the outer hole door 11 and the inner hole door 4 can be completely opened inside the middle seat 3, and in daily use, the insulation layer 2 at the top of the shell 1 can play a role in insulation, and the silicone strips 13 around the outer hole door 11 can improve its sealing effect, thereby avoiding the serious air leakage in the manhole of some dust collectors due to insufficient design and manufacturing defects, which directly affects the flue gas temperature of the bag dust collector and affects the service life of the filter bag.

[0022] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A double-layer manhole door for a bag filter, comprising a housing (1), characterized in that: The top of the shell (1) is fixedly mounted with an insulation layer (2), the top of the insulation layer (2) is fixedly mounted with an intermediate seat (3), the top of the shell (1) is fixedly mounted with an inner hole door (4), the top of the inner hole door (4) is fixedly mounted with a handle A (5), the surface of the inner hole door (4) is fixedly mounted with an inner door seat (6), the top of the inner door seat (6) is fixedly mounted with an inner door cover (7), the top of the inner door cover (7) is fixedly mounted with an inner door shaft (8), the top of the inner door cover (7) is fixedly mounted with an inner door hinge bolt (9), the left side of the inner door seat (6) is fixedly mounted with an inner door pin shaft (1 0), an outer hole door (11) is fixedly installed on the top of the intermediate seat (3), a handle B (12) is fixedly installed on the top of the outer hole door (11), a silicone rubber strip (13) is installed on the right side of the outer hole door (11), an outer door seat (14) is fixedly installed on the surface of the outer hole door (11), an outer door shaft (15) is fixedly installed on the top of the outer door seat (14), an outer door cover (16) is fixedly installed on the bottom end of the outer door shaft (15), an outer door hinge bolt (17) is fixedly installed on the top of the outer door cover (16), and an outer door pin shaft (18) is fixedly installed on the top of the outer door seat (14).

2. The double-layer manhole door of the bag filter according to claim 1 is characterized in that: The material of the thermal insulation layer (2) is aluminum silicate wool, and the outer hole door (11) is welded to the door seat of the inner hole door (4) via the middle seat (3).

3. The double-layer manhole door of the bag filter according to claim 1 is characterized in that: The inner hole door (4) is connected via an inner door rotating shaft (8), and the outer hole door (11) is connected via an outer door rotating shaft (15).

4. The double-layer manhole door of the bag filter according to claim 1 is characterized in that: Silicone rubber strips (13) are installed around the inner door seat (6) and the outer door seat (14).

5. The double-layer manhole door of the bag filter according to claim 1 is characterized in that: The inner door hinge bolt (9) is slidably connected to the inner door pin shaft (10).

6. The double-layer manhole door of the bag filter according to claim 1 is characterized in that: The outer door hinge bolt (17) is slidably connected to the outer door pin shaft (18).

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