Ash discharge anti-blocking device of gravity dust collector
By using anti-clogging devices such as filter cartridges, cones, mesh grids, and support legs in gravity dust collectors, the problem of easy clogging of ash discharge pipes is solved, achieving efficient ash discharge and safe production.
Patent Information
- Application Number
- CN202423110680.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-12-17
AI Technical Summary
The ash discharge pipes of gravity dust collectors are prone to blockage, leading to equipment failure and requiring a large amount of cleaning work, posing safety hazards. Existing technologies cannot effectively solve this problem.
Design an anti-clogging device comprising a filter cartridge, spikes, a mesh grid, and feet. The spikes on the top of the filter cartridge are used to break up large objects, the mesh grid is used to filter out suitable dust, and the feet are used to support the filter cartridge and prevent it from falling off.
It effectively prevents large objects from entering the ash discharge pipe, reduces the risk of blockage, improves ash discharge efficiency, reduces safety hazards, and simplifies cleaning work.
Smart Images
Figure CN223861580U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of blast furnace smelting technology, specifically to a gravity dust collector ash discharge and anti-clogging device. Background Technology
[0002] Gravity dust collectors are crucial equipment for collecting and purifying blast furnace gas. Their main function is to remove dust from the blast furnace gas, with the dust periodically discharged through ash removal pipes. The working principle of a gravity dust collector is as follows: raw blast furnace gas enters from the top of the collector through a downcomer, descends along a central duct, and at the outlet of the central duct, the flow direction suddenly reverses 180° and flows upward, with a sudden decrease in velocity. Dust particles in the raw blast furnace gas are dislodged by inertia and gravity, settling to the bottom of the collector. Cleaner raw blast furnace gas then enters a baghouse dust collector through the upper pipe for secondary dust removal. The deposited dust is then collected... The existing technology of periodically discharging ash through pipelines into tank trucks has the following problems: large objects such as paint detach from the raw coal gas pipeline and block the ash discharge pipe, making it impossible to discharge ash; because the tank is filled with high-temperature and high-pressure coal gas after dust removal, operators cannot clean or unclog it online (when the blast furnace is not shut down); long-term blockage of dust collectors causes gravity dust collectors to fail, and a large amount of dust collectors will reach the next process - the bag dust collector, instantly clogging all the bags and causing major safety accidents; even if the blockage is repaired by shutting down the furnace, a large amount of dust collectors need to be discharged externally due to the large blockage, which is a huge workload and has a huge impact on the site, environmental protection, and personnel safety.
[0003] Therefore, there is an urgent need to design a gravity dust collector ash discharge and anti-clogging device to solve the problems of easy clogging of ash discharge pipes, long-term clogging leading to the failure of gravity dust collectors, large cleaning workload, environmental pollution and significant safety hazards. Utility Model Content
[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a gravity dust collector dust discharge and anti-clogging device.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a gravity dust collector dust discharge and anti-clogging device, including a filter cylinder and a cone spike, the cone spike is installed on the top of the filter cylinder, a mesh grid is provided at the upper end of the inside of the filter cylinder, several filter holes are evenly distributed on the wall of the filter cylinder, and a support foot is provided at the bottom of the filter cylinder.
[0006] Specifically, the filter cartridge is a cylindrical structure, and the bottom dimension of the filter cartridge is larger than the dimension of the bottom ash discharge pipe of the dust collector.
[0007] Specifically, the cone-shaped spike is a cone-shaped structure composed of four steel bars. The top of the cone-shaped spike is welded together, and the bottom of the cone-shaped spike is welded to the top edge of the filter cylinder.
[0008] Specifically, the mesh grid is located inside the filter cylinder and is welded to the inner wall of the filter cylinder. The mesh grid is composed of squares of uniform size, each 10 cm in diameter.
[0009] Specifically, the filter holes are located on the walls around the filter cylinder, and the filter holes are of the same size and evenly distributed.
[0010] Specifically, the support legs are located at the bottom of the filter cylinder, and there are four support legs, which are welded to the filter cylinder.
[0011] This utility model has the following beneficial effects:
[0012] The gravity dust collector dust discharge and anti-clogging device designed in this utility model: blocks large objects from entering the dust discharge pipe to prevent blockage; the top of the filter cylinder is made into a pointed cone shape, which can break up large pieces of debris falling from the top and discharge them to both sides of the filter cylinder to prevent large pieces from accumulating at the top and reduce the amount of dust passing through; the dust discharge efficiency is greatly improved after the modification. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the ash removal and anti-clogging device of a gravity dust collector.
[0014] Figure 2 This is a schematic diagram of the structure of the gravity dust collector's ash discharge and anti-clogging device installed on the dust collector's ash discharge pipe.
[0015] In the diagram: 1-Filter cartridge, 1.1-Mesh grid, 1.2-Filter holes, 1.3-Support; 2-Conical spike; 3-Gravity dust collector, 3.1-Gas inlet, 3.2-Gas outlet, 3.3-Ash discharge pipe. Detailed Implementation
[0016] The technical solutions of the present utility model will be described in further detail below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0017] Example 1:
[0018] like Figures 1-2 As shown, a gravity dust collector dust discharge and anti-clogging device includes a filter cylinder 1 and a cone spike 2. The cone spike 2 is installed on the top of the filter cylinder 1. A mesh grid 1.1 is provided at the upper end of the inside of the filter cylinder 1. Several filter holes 1.2 are evenly distributed on the cylinder wall of the filter cylinder 1. The bottom of the filter cylinder 1 is provided with a support foot 1.3.
[0019] Before using the gravity dust collector 3, this device is fitted onto the dust collector's ash discharge pipe 3.3. The filter cylinder 1 of this device has filter holes 1.2 on its outer periphery. The filter cylinder 1 and filter holes 1.2 are used to allow dust of suitable size or unclumped dust to enter the ash discharge pipe 3.3. The upper end of the filter cylinder 1 is equipped with a mesh grid 1.1. The mesh grid 1.1 is also used to allow dust of suitable size after being broken up to flow into the ash discharge pipe 3.3 through the filter cylinder 1. The top of the filter cylinder 1 is equipped with a cone spike 2. The cone spike 2 is used to break up large pieces of dust and prevent them from entering and clogging the ash discharge pipe 3.3. The bottom of the filter cylinder 1 is welded with a support foot 1.3. The support foot 1.3 is used to prevent the filter cylinder 1 from falling off or tilting due to the impact of large pieces of dust.
[0020] Example 2: Specific implementation steps using the structural form of Example 1.
[0021] 1. Make a 1m long sleeve and a filter cylinder with a diameter of about 40cm using 2mm steel plate;
[0022] 2. Thirty circular holes with a diameter of 10cm are evenly cut on the side of filter cylinder 1 as filter holes 1.2;
[0023] 3. Weld a steel mesh grid 1.110cm*10cm to the top, and make a cone-shaped spike 2 with 4 30cm long threaded steel bars on the upper part of the mesh grid 1.1;
[0024] 4. Weld four steel bars to the bottom of filter cylinder 1 as support legs 1.3;
[0025] 5. Simply place filter cartridge 1 onto the front end of ash discharge pipe 3.3.
[0026] This utility model is not limited to the above-described embodiments. Anyone should know that any structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model.
[0027] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.
[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A gravity dust collector dust discharge and anti-clogging device, characterized in that, It includes a filter cylinder and a cone-shaped spike. The top of the filter cylinder is equipped with a cone-shaped spike, the upper part of the inside of the filter cylinder is provided with a mesh grid, several filter holes are evenly distributed on the cylinder wall, and the bottom of the filter cylinder is provided with a support foot.
2. The gravity dust collector ash discharge and anti-clogging device according to claim 1, characterized in that, The filter cartridge is a cylindrical structure, and the bottom dimension of the filter cartridge is larger than the dimension of the bottom ash discharge pipe of the dust collector.
3. The gravity dust collector ash discharge and anti-clogging device according to claim 1, characterized in that, The cone-shaped structure consists of four steel bars, with the top of the cone welded together and the bottom of the cone welded to the top edge of the filter cylinder.
4. The gravity dust collector ash discharge and anti-clogging device according to claim 1, characterized in that, The mesh grid is located inside the filter cylinder and is welded to the inner wall of the filter cylinder. The mesh grid consists of squares of uniform size, each 10 cm in diameter.
5. The gravity dust collector ash discharge and anti-clogging device according to claim 1, characterized in that, The filter holes are located on the walls around the filter cylinder, and the filter holes are of the same size and evenly distributed.
6. The gravity dust collector ash discharge and anti-clogging device according to claim 1, characterized in that, The four support legs are located at the bottom of the filter cylinder and are welded to the filter cylinder.