Rare metal smelting furnace exhaust pipeline dust removal device
By designing detachable filter components and scraper structures, the problem of blockage caused by dust accumulation in the exhaust pipes of rare metal smelting furnaces has been solved, enabling convenient online cleaning and impurity collection, and improving the operational stability of the equipment.
Patent Information
- Application Number
- CN202522097375.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-29
AI Technical Summary
The exhaust pipes of existing rare metal smelting furnaces are prone to blockage due to dust accumulation after prolonged use, and the existing devices cannot be easily cleaned online, affecting normal operation.
A detachable dust removal device for the exhaust pipe of a rare metal smelting furnace was designed. It adopts a detachable filter screen assembly and scraper structure. The scraper removes impurities from the filter screen and collects them into the dust collection box, realizing online cleaning.
It enables convenient dust filtration and cleaning, avoids pipe blockage, reduces cleaning frequency, and improves equipment efficiency.
Smart Images

Figure CN224672327U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pipeline dust removal, and in particular to a dust removal device for exhaust pipelines of rare metal smelting furnaces. Background Technology
[0002] Dust and gas are generated during the smelting process in metal smelting furnaces. Dust needs to be treated using exhaust pipes. Exhaust pipes are generally referred to as pipeline systems used to control and reduce the spread of dust during industrial production and processing.
[0003] Common dustproof pipes tend to accumulate dust over time, leading to blockages and making online cleaning difficult. For example, Chinese utility model patent CN222625624U discloses a dust removal device for the initial end of pipes used in industrial coating equipment. While it allows for convenient disassembly and cleaning of the dustproof screen, it cannot be cleaned online, resulting in frequent disassembly and cleaning, which affects normal use. Utility Model Content
[0004] This utility model aims to address the shortcomings of existing technologies by providing a dust removal device for the exhaust pipe of a rare metal smelting furnace.
[0005] To achieve the above objectives, this utility model adopts the following technical solution:
[0006] A dust removal device for the exhaust pipe of a rare metal smelting furnace includes a first square pipe and a second square pipe that can be detachably installed together. An air inlet pipe is connected to one end of the first square pipe and the second square pipe opposite to each other. An exhaust pipe is connected to one end of the second square pipe opposite to the first square pipe. A filter screen assembly is installed in contact with the exhaust pipe inside the second square pipe. A snap ring is provided between the filter screen assembly and the inner wall of the second square pipe. A dust discharge hole is provided at the bottom of the second square pipe inside the filter screen assembly. A dust collection box is installed at the bottom of the second square pipe below the dust discharge hole. A push-pull rod is passed through the top of the second square pipe. A scraper is connected to the bottom of the push-pull rod and is fitted to the surface of the filter screen assembly.
[0007] The filter assembly includes a filter frame, a filter screen inside the filter frame, an annular groove on the outer wall of the filter frame, and a snap-fit ring installed in the annular groove and protruding out of the annular groove.
[0008] The push-pull rod has a push-pull handle at the top.
[0009] The bottom of the push-pull rod and the top of the scraper can be detachably installed via a threaded rod.
[0010] A sealing ring is provided between the first square pipe and the push rod.
[0011] Both the first square pipe and the second square pipe have a connecting frame on their connecting end faces, and the connecting frame is fixed by several first bolts.
[0012] The first square pipe connection end face is provided with an alignment protrusion, and the second square pipe connection end face is provided with an alignment groove, with the alignment protrusion installed in the alignment groove.
[0013] The dust collection box is detachably installed at the bottom of the second square pipe via a second bolt.
[0014] Both the intake and exhaust pipes are equipped with connecting flanges.
[0015] The beneficial effects of this utility model are: This utility model adopts a detachable structure to filter dust in the pipe, which is convenient for maintenance. The impurities trapped on the filter screen can be scraped off by a scraper to avoid clogging. The scraped impurities can be collected by the dust collection box and cleaned regularly, with a low cleaning frequency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 for Figure 1 Enlarged diagram of A in the middle;
[0018] Figure 3 This is a schematic diagram of the second square pipe connection end face;
[0019] In the diagram: 1-First square pipe; 2-Second square pipe; 3-Inlet pipe; 4-Exhaust pipe; 5-Filter assembly; 6-Snap-fit ring; 7-Dust exhaust hole; 8-Dust collection box; 9-Push-pull rod; 10-Scraper; 11-Push-pull handle; 12-Threaded rod; 13-Sealing ring; 14-Connecting frame; 15-First bolt; 16-Alignment protrusion; 17-Second bolt; 18-Connecting flange;
[0020] 501 - Filter frame; 502 - Filter screen;
[0021] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation
[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The embodiments described are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.
[0023] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0026] A dust removal device for the exhaust pipe of a rare metal smelting furnace, such as Figures 1 to 3 As shown, it includes a first square pipe 1, a second square pipe 2, an air inlet pipe 3, an exhaust pipe 4, a filter assembly 5, a snap ring 6, a dust discharge hole 7, a dust collection box 8, a push-pull rod 9, a scraper 10, a push-pull handle 11, a threaded rod 12, a sealing ring 13, a connecting frame 14, a first bolt 15, an alignment protrusion 16, a second bolt 17, and a connecting flange 18.
[0027] The first square pipe 1 and the second square pipe 2 can be detachably installed together. The connecting end faces of the first square pipe 1 and the second square pipe 2 are provided with connecting frames 14, and the connecting frames 14 are connected and fixed by several first bolts 15.
[0028] The first square pipe 1 has an alignment protrusion 16 on its connecting end face, and the second square pipe 2 has an alignment groove on its connecting end face, with the alignment protrusion 16 installed in the alignment groove.
[0029] An air intake pipe 3 is connected to one end face opposite to the first square pipe 1 and the second square pipe 2, and an exhaust pipe 4 is connected to one end face opposite to the first square pipe 1.
[0030] Both the intake pipe 3 and the exhaust pipe 4 are equipped with connecting flanges 18.
[0031] The shapes of the intake pipe 3 and the exhaust pipe 4 can be matched with the installed equipment, for example, they can be circular pipes.
[0032] A filter assembly 5 is installed in the second square pipe 2 near the exhaust pipe 4. The filter assembly 5 includes a filter frame 501 and a filter 502 is provided inside the filter frame 501.
[0033] A snap-fit ring 6 is provided between the filter assembly 5 and the inner wall of the second square pipe 2. An annular groove is provided on the outer wall of the filter frame 501. The snap-fit ring 6 is installed in the annular groove and protrudes out of the annular groove.
[0034] The filter frame 501 of the filter assembly 5 can be installed on the inner wall of the second square pipe 2 in a manner similar to an interference fit by means of the snap ring 6, which is relatively stable and not easy to move.
[0035] The bottom of the second square pipe 2 has a dust discharge hole 7 inside the filter assembly 5. A dust collection box 8 is installed below the dust discharge hole 7 at the bottom of the second square pipe 2. The dust collection box 8 is detachably installed at the bottom of the second square pipe 2 by means of the second bolt 17.
[0036] The top of the second square pipe 2 is provided with a push-pull rod 9, and the bottom of the push-pull rod 9 is connected to a scraper 10, which is fitted to the surface of the filter assembly 5.
[0037] The top of the push-pull rod 9 is equipped with a push-pull handle 11.
[0038] The bottom of the push-pull rod 9 and the top of the scraper 10 can be detachably installed via the threaded rod 12.
[0039] A sealing ring 13 is provided between the first square pipe 1 and the push rod 9.
[0040] The bottom of the scraper 10 can be designed as a slope to better remove impurities from the surface of the filter screen 502.
[0041] This utility model uses a detachable structure to filter dust in the pipe, which is convenient for maintenance. The impurities trapped on the filter screen 501 can be scraped off by the scraper 10 to avoid clogging. The scraped impurities can be collected by the dust collection box 8 and cleaned regularly.
[0042] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.
Claims
1. A dust removal device for the exhaust pipe of a rare metal smelting furnace, characterized in that, The system includes a first square pipe (1) and a second square pipe (2) that can be detachably installed together. An air inlet pipe (3) is connected to one end of the first square pipe (1) and the second square pipe (2) opposite to each other. An exhaust pipe (4) is connected to one end of the second square pipe (2) opposite to the first square pipe (1). A filter screen assembly (5) is installed in contact with one end of the second square pipe (2) near the exhaust pipe (4). A snap ring (6) is provided between the filter screen assembly (5) and the inner wall of the second square pipe (2). A dust discharge hole (7) is provided at the bottom of the second square pipe (2) inside the filter screen assembly (5). A dust collection box (8) is installed at the bottom of the second square pipe (2) below the dust discharge hole (7). A push-pull rod (9) is passed through the top of the second square pipe (2). A scraper (10) is connected to the bottom of the push-pull rod (9). The scraper (10) is fitted to the surface of the filter screen assembly (5).
2. The dust removal device for the exhaust pipe of a rare metal smelting furnace according to claim 1, characterized in that, The filter assembly (5) includes a filter frame (501), a filter (502) is provided inside the filter frame (501), and an annular groove is provided on the outer wall of the filter frame (501). A snap ring (6) is installed in the annular groove and protrudes out of the annular groove.
3. The dust removal device for the exhaust pipe of a rare metal smelting furnace according to claim 1, characterized in that, The top of the push-pull rod (9) is equipped with a push-pull handle (11).
4. The dust removal device for the exhaust pipe of a rare metal smelting furnace according to claim 3, characterized in that, The bottom of the push-pull rod (9) and the top of the scraper (10) can be detachably installed via a threaded rod (12).
5. The dust removal device for the exhaust pipe of a rare metal smelting furnace according to claim 4, characterized in that, A sealing ring (13) is provided between the first square pipe (1) and the push rod (9).
6. The dust removal device for the exhaust pipe of a rare metal smelting furnace according to claim 1, characterized in that, Both the first square pipe (1) and the second square pipe (2) are provided with a connecting frame (14) on their connecting end faces. The connecting frame (14) is connected and fixed by several first bolts (15).
7. A dust removal device for the exhaust pipe of a rare metal smelting furnace according to claim 6, characterized in that, The first square pipe (1) has a positioning protrusion (16) on its connecting end face, and the second square pipe (2) has a positioning groove on its connecting end face, with the positioning protrusion (16) installed in the positioning groove.
8. The dust removal device for the exhaust pipe of a rare metal smelting furnace according to claim 1, characterized in that, The dust collection box (8) is detachably installed at the bottom of the second square pipe (2) by means of the second bolt (17).
9. A dust removal device for the exhaust pipe of a rare metal smelting furnace according to claim 1, characterized in that, Both the intake pipe (3) and the exhaust pipe (4) are equipped with connecting flanges (18).
Citation Information
Patent Citations
Pipeline initial end dust removal device based on industrial coating equipment
CN222625624U