Flue gas filtering device for waste heat recovery in cement production

Abstract

The utility model relates to the technical field of cement production, and provides a flue gas filtering device for cement production waste heat recovery, the flue gas filtering device comprises a recovery box and a filtering box, a smoke exhaust pipe is fixedly connected between the bottom end of the filtering box and the recovery box, a smoke outlet pipe is arranged at the top end of the filtering box, and a plurality of filtering mechanisms are arranged in the filtering box. The plurality of filtering mechanisms comprise mounting frames inserted in the filtering box in a sliding manner, one end of each mounting frame is fixedly connected with a positioning plate, a positioning frame is arranged above the positioning plate, the positioning frame is fixedly connected with the outer wall of the filtering box, a rotating groove is formed in the positioning frame, a threaded rod is rotatably connected in the rotating groove, and the threaded rod is fixedly connected with the outer wall of the filtering box. The thread directions of the two ends of the threaded rod are opposite, and the two ends of the threaded rod are both in threaded sleeving connection with moving plates, a filtering structure is additionally arranged, impurities in smoke can be filtered, pollution to the environment is reduced, and the filtering structure can be detached so that filtered objects can be conveniently cleaned.

Description

Technical Field

[0001] The present application relates to the technical field of cement production, and in particular to a flue gas filtering device for recovering waste heat from cement production. Background Art

[0002] Cement: A powdered hydraulic inorganic cementitious material that becomes a slurry when mixed with water. It can harden in the air or in water, and can firmly bond sand, stone and other materials together. Waste heat refers to the limitations of historical, technical, and conceptual factors. As cement is used more and more, a large amount of smoke will be emitted during the cement production process.

[0003] Although the existing flue gas recovery device can recycle waste heat very well, the released flue gas contains impurities, and direct discharge will cause environmental pollution, which is defective. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a flue gas filtration device for recovering waste heat from cement production, so as to filter the flue gas and avoid polluting the environment.

[0005] The present application provides a flue gas filtration device for waste heat recovery in cement production, which adopts the following technical solutions:

[0006] The smoke filter device for recovering waste heat from cement production comprises a recovery box and a filter box, wherein the bottom end of the filter box is fixedly connected to a smoke exhaust pipe between the recovery box and the filter box, the top of the filter box is provided with a smoke outlet pipe, and the filter box is provided with a plurality of filter mechanisms, wherein the plurality of filter mechanisms comprise a mounting frame slidably inserted in the filter box, one end of the mounting frame is fixedly connected to a positioning plate, a positioning frame is provided above the positioning plate, the positioning frame is fixedly connected to the outer wall of the filter box, a rotating groove is provided on the positioning frame, a threaded rod is rotatably connected in the rotating groove, the threads at both ends of the threaded rod are in opposite directions, a movable plate is threadedly sleeved on both ends of the threaded rod, a clamping block is fixedly connected to one side of the bottom end of the movable plate, a clamping slot corresponding to the clamping block is provided on the outer side wall of the positioning plate, a stepped groove is provided in the mounting frame, a filter screen is provided in the stepped groove, two slots are provided on the inner walls on both sides of the mounting frame, a baffle is provided in the slot, and one end of the baffle is rotatably connected to the inner wall of the slot through a rotating shaft.

[0007] Preferably, one end of the threaded rod passes through the rotation groove and extends outwards, and the end of the threaded rod extending outwards is fixedly connected to a rotating block.

[0008] Preferably, a rubber block is fixedly connected to the bottom of the baffle, and the bottom of one end of the rubber block is arranged in an arc shape.

[0009] Preferably, the positioning plate is connected to a handle.

[0010] Preferably, the apertures on the plurality of filter screens are arranged from large to small from bottom to top.

[0011] Compared with the prior art, the beneficial effects of this application are:

[0012] In the present application, the waste heat of the flue gas is recovered and processed through a recovery box, the flue gas is discharged into the filter box through an exhaust pipe, the flue gas is filtered through the filter screens in multiple installation frames, and the filtered flue gas is discharged through the smoke outlet pipe. By rotating the threaded rod, the two movable plates can be prompted to move, and the blocks on the movable plates are inserted into the slots on the positioning plates to fix the installation frame. The baffle plate can be used to limit and fix the filter screen by rotating it around the rotating shaft. The present application adds a filtering structure that can filter impurities in the flue gas, reduce pollution to the environment, and can be disassembled to facilitate cleaning of the filtered material. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the structure of some embodiments of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the filter screen in some embodiments of the utility model;

[0016] Figure 3 Structural schematic diagram of the step groove in some embodiments of the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the rubber block in some embodiments of the utility model.

[0018] The reference numerals are:

[0019] 1. Recovery box; 2. Filter box; 3. Smoke exhaust pipe; 4. Smoke outlet pipe; 5. Installation frame; 6. Positioning plate; 7. Positioning frame; 8. Threaded rod; 9. Moving plate; 10. Block; 11. Step groove; 12. Filter net; 13. Slot; 14. Baffle; 15. Rotating shaft; 16. Rotating block; 17. Rubber block; 18. Handle. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0023] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0024] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] Example

[0027] like Figure 1-4 As shown, the flue gas filtering device for recovering waste heat from cement production described in the embodiment of the present application comprises a recovery box 1 and a filter box 2, a smoke exhaust pipe 3 is fixedly connected between the bottom end of the filter box 2 and the recovery box 1, a smoke outlet pipe 4 is arranged at the top of the filter box 2, a plurality of filter mechanisms are arranged in the filter box 2, and the plurality of filter mechanisms comprise a mounting frame 5 slidably inserted in the filter box 2, a positioning plate 6 is fixedly connected to one end of the mounting frame 5, a positioning frame 7 is arranged above the positioning plate 6, the positioning frame 7 is fixedly connected to the outer wall of the filter box 2, and a rotating groove is arranged on the positioning frame 7 A threaded rod 8 is rotatably connected in the rotating groove, and the threads at both ends of the threaded rod 8 are in opposite directions. Both ends of the threaded rod 8 are threadedly sleeved with a movable plate 9, and a clamping block 10 is fixedly connected to one side of the bottom end of the movable plate 9. A clamping groove corresponding to the clamping block 10 is provided on the outer wall of the positioning plate 6, a stepped groove 11 is provided in the mounting frame 5, and a filter screen 12 is provided in the stepped groove 11. Two slots 13 are provided on the inner walls on both sides of the mounting frame 5, and a baffle 14 is provided in the slot 13. One end of the baffle 14 is rotatably connected to the inner wall of the slot 13 through a rotating shaft 15.

[0028] When in use, the recovery box 1 recovers the waste heat of the flue gas, and the flue gas is discharged into the filter box 2 through the exhaust pipe 3. The flue gas is filtered by the filter screens 12 in the multiple installation frames 5, and the filtered flue gas is discharged through the smoke outlet pipe 4. By rotating the threaded rod 8, the two movable plates 9 can be prompted to move, and the block 10 on the movable plate 9 is inserted into the groove on the positioning plate 6 to fix the installation frame 5. By rotating the baffle plate 14 around the rotating shaft 15, the baffle plate 14 can be used to limit and fix the filter screen 12.

[0029] In this embodiment, one end of the threaded rod 8 passes through the rotation groove and extends outwards, and the end of the threaded rod 8 extending outwards is fixedly connected to a rotating block 16. By providing the rotating block 16, the threaded rod 8 can be easily rotated.

[0030] In this embodiment, a rubber block 17 is fixedly connected to the bottom of the baffle 14 . The bottom of one end of the rubber block 17 is arc-shaped. The resilience of the rubber block 17 is used to press against the filter screen 12 to improve the stability of the filter screen 12 .

[0031] In this embodiment, the positioning plate 6 is connected to a handle 18 , and the handle 18 is provided to facilitate pulling the positioning plate 6 .

[0032] In this embodiment, the apertures of the plurality of filter screens 12 are arranged from large to small from bottom to top, so as to facilitate multi-stage filtering of the flue gas and improve the dust removal effect.

[0033] The working principle of a flue gas filtration device for waste heat recovery in cement production according to the embodiment of the present application is as follows:

[0034] First, the recovery box 1 recovers the waste heat of the flue gas, and the flue gas is discharged into the filter box 2 through the exhaust pipe 3. The flue gas is filtered by the filter screens 12 in the multiple installation frames 5, and the filtered flue gas is discharged through the smoke outlet pipe 4. By rotating the threaded rod 8, the two movable plates 9 can be moved, and the block 10 on the movable plate 9 is inserted into the groove on the positioning plate 6 to fix the installation frame 5. By rotating the baffle plate 14 around the rotating shaft 15, the baffle plate 14 can be used to limit and fix the filter screen 12.

[0035] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A flue gas filtration device for waste heat recovery in cement production, characterized in that: The smoke filter is a filter element and a filter element is a filter element.

2. A flue gas filtration device for waste heat recovery in cement production according to claim 1, characterized in that: One end of the threaded rod passes through the rotating groove and extends outwards, and the end of the threaded rod extending outwards is fixedly connected with a rotating block.

3. The flue gas filtration device for waste heat recovery in cement production according to claim 1, characterized in that: A rubber block is fixedly connected to the bottom of the baffle, and the bottom of one end of the rubber block is arranged in an arc shape.

4. The flue gas filtration device for waste heat recovery in cement production according to claim 1, characterized in that: The positioning plate is connected with a handle.

5. The flue gas filtration device for waste heat recovery in cement production according to claim 1, characterized in that: The apertures on the plurality of filter screens are arranged from large to small from bottom to top.

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