Pressure relief and dust collection system of pneumatic conveying pump for zinc smelting
Through a multi-stage pressure reduction and dust collection system, the problem of single-storey pump pressure holding in zinc smelting is solved, efficient dust purification and metal recycling are achieved, and the service life and environmental performance of the equipment are improved.
Patent Information
- Application Number
- CN202422031878.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-21
AI Technical Summary
During zinc smelting, when the single-storey pump pneumatically transports baked sand and smoke, it is easy to block the pipe and hold the pressure, causing the dust to drift during pressure relief, pollute the environment and damage the equipment, and shorten the equipment life.
A multi-stage step-down dust collection system including baked sand single bin pump, flue gas single bin pump, vortex dust collector and bag dust collector is adopted. Through the capacity expansion pipeline and diameter variable joint, multi-stage step-down and purification of high-pressure dust are achieved.
Effectively reduce the pressure of single-storey pumps and conveying pipelines, quickly unblock the pipelines, reduce environmental pollution, improve metal recovery rate, and extend equipment life.
Smart Images
Figure CN223117658U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction engineering construction accessories, and more specifically to a pressure relief and dust collection system for a zinc smelting pneumatic conveying pump. Background Art
[0002] In the transportation of roasted zinc ore in the zinc smelting industry, the zinc roasted ore and dust transportation system usually adopts the single bin pump pneumatic transportation method. With the increase in the output of zinc roasted ore and dust, the transportation frequency of the single bin pump increases. During the transportation process, the pneumatic conveying pump is prone to pipe blockage and pressure buildup problems. Generally, the pressure of the pump body is reduced by pressure relief to quickly dredge the pipeline. However, due to the large pressure in the roasted ore pipeline during pressure relief, a large amount of roasted ore dust drifts without organization, posing environmental protection risks and occupational disease hazards. At the same time, a large amount of dust enters the motor winding, motor slip ring, and the inside of the control box during pressure relief, easily causing the equipment control system to malfunction and shortening the service life of the equipment. Content of the Utility Model
[0003] The purpose of the utility model is: to solve the above technical problems, the utility model provides a pressure relief and dust collection system for a zinc smelting pneumatic conveying pump, which can perform multi-stage pressure reduction and purification treatment on high-pressure dust gas.
[0004] The utility model specifically adopts the following technical solutions to achieve the above purpose: a pressure relief and dust collection system for a zinc smelting pneumatic conveying pump, including a roasted ore single bin pump, a flue gas single bin pump, a cyclone dust collector, and a bag dust collector. The outlets of the roasted ore single bin pump and the flue gas single bin pump are respectively connected to a first outlet pipeline and a second outlet pipeline. A first pressure relief valve and a second pressure relief valve are respectively installed in the middle of the first outlet pipeline and the second outlet pipeline. The outlets of the first pressure relief valve and the second pressure relief valve are respectively installed with a first expansion pipeline and a second expansion pipeline. The outlet ends of the first expansion pipeline and the second expansion pipeline are connected to the inlet end of the cyclone dust collector. A connecting pipeline is connected between the inlet end of the cyclone dust collector and the inlet end of the bag dust collector.
[0005] To facilitate the recycling of dust in the dust collector, as a preferred embodiment of the pressure relief and dust collection system for a zinc smelting pneumatic conveying pump of the utility model, a first dust collection pipeline is installed at the outlet of the bag dust collector, and the first dust collection pipeline is communicated with the bin of the roasted ore single bin pump. A second dust collection pipeline is installed at the outlet of the cyclone dust collector, and the other end of the second dust collection pipeline is communicated with the middle of the first dust collection pipeline.
[0006] To reduce the pressure of the single bin pump and the conveying pipeline, as a preferred embodiment of the pressure relief and dust collection system for a zinc smelting pneumatic conveying pump of the utility model, the inner diameters of the first expansion pipeline and the second expansion pipeline are respectively larger than the inner diameters of the first outlet pipeline and the second outlet pipeline.
[0007] For the convenience of installing the pressure relief valve and the expansion pipeline, as an optimization of the pressure relief and dust collection system of the zinc smelting pneumatic conveying pump of the present utility model, a first reducing joint is installed between the first pressure relief valve and the first expansion pipeline, and a second reducing joint is installed between the second pressure relief valve and the second expansion pipeline.
[0008] The beneficial effects of the present utility model are as follows:
[0009] 1. By increasing the diameter of the pressure relief pipeline and expanding it, the pressure of the single bin pump is relieved twice, thereby reducing the pressure of the single bin pump and the conveying pipeline, quickly dredging the feeding pipeline, and improving the feeding efficiency;
[0010] 2. The high-pressure dust generated under the pressure-holding state of the single bin pump is recovered by the cyclone dust collector and the bag dust collector, and is transported through the pipeline to the roasting single bin pump for reuse, effectively reducing the pollution to the surrounding environment and improving the metal recovery rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 is a schematic structural diagram of the present utility model;
[0012] Figure 2 is Figure 1 a schematic diagram of part A of
[0013] Reference numerals: 1, roasting single bin pump; 101, first outlet pipeline; 102, first pressure relief valve; 2, flue gas single bin pump; 201, second outlet pipeline; 202, second pressure relief valve; 3, first expansion pipeline; 301, first reducing joint; 4, second expansion pipeline; 401, second reducing joint; 5, cyclone dust collector; 6, bag dust collector; 7, connecting pipeline; 8, first dust collection pipeline; 9, second dust collection pipeline. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0014] The present utility model will be described in detail below in conjunction with the drawings and specific embodiments. Here, the schematic embodiments of the present utility model and the description are used to explain the present utility model, but not to limit the present utility model.
[0015] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.
[0016] Please refer to Figure 1-2, the present utility model provides the following technical solutions: A pressure relief and dust collection system for a zinc smelting pneumatic conveying pump, including a roasted ore single bin pump 1, a flue gas single bin pump 2, a cyclone dust collector 5, and a bag dust collector 6. The outlets of the roasted ore single bin pump 1 and the flue gas single bin pump 2 are respectively connected to a first outlet pipeline 101 and a second outlet pipeline 201. A first pressure relief valve 102 and a second pressure relief valve 202 are respectively installed in the middle parts of the first outlet pipeline 101 and the second outlet pipeline 201. The outlets of the first pressure relief valve 102 and the second pressure relief valve 202 are respectively installed with a first expansion pipeline 3 and a second expansion pipeline 4. The outlet ends of the first expansion pipeline 3 and the second expansion pipeline 4 are connected to the inlet end of the cyclone dust collector 5. A connecting pipeline 7 is connected between the inlet end of the cyclone dust collector 5 and the inlet end of the bag dust collector 6.
[0017] In this embodiment: When the roasted ore single bin pump 1 and the flue gas single bin pump 2 relieve pressure in their outlet pipelines, the powder and gas overflowing from the pipelines are sucked into the first expansion pipeline 3 and the second expansion pipeline 4. The two expansion pipelines provide space for the first pressure relief of the pipelines. The powder and gas in the two expansion pipelines enter the cyclone dust collector 5 for dust removal, thereby achieving the effect of secondary pressure relief. During the dust removal process, since the roasted ore single bin pump 1 is connected to the flue gas single bin pump 2, the cyclone dust collector 5 can always be maintained in a negative pressure state. And at the same time, some of the powder gas overflowing from the cyclone dust collector 5 enters the bag dust collector 6 for dust removal, so as to achieve the dust removal effect during the two pressure relief processes.
[0018] As a technical optimization scheme of the present utility model, a first dust collection pipeline 8 is installed at the outlet of the bag dust collector 6, and the first dust collection pipeline 8 is connected to the bin of the roasted ore single bin pump 1. A second dust collection pipeline 9 is installed at the outlet of the cyclone dust collector 5, and the other end of the second dust collection pipeline 9 is connected to the middle part of the first dust collection pipeline 8.
[0019] In this embodiment: The powder after dust removal in the bag dust collector 6 enters the middle bin of the roasted ore single bin pump 1 through the first dust collection pipeline 8. The powder after dust removal in the cyclone dust collector 5 is concentrated into the first dust collection pipeline 8 through the second dust collection pipeline 9, and finally all enters the bin of the roasted ore single bin pump 1.
[0020] As a technical optimization scheme of the present utility model, the inner diameters of the first expansion pipeline 3 and the second expansion pipeline 4 are respectively larger than the inner diameters of the first outlet pipeline 101 and the second outlet pipeline 201.
[0021] In this embodiment: By setting the inner diameter of the expansion pipeline to be larger than the inner diameter of the outlet pipeline, when the gas in the outlet pipeline enters the expansion pipeline, the first pressure relief effect on the single bin pump and the outlet pipeline is achieved by expanding the pipeline space.
[0022] As a technical optimization solution of the present utility model, a first reducing joint 301 is installed between the first pressure relief valve 102 and the first expansion pipeline 3, and a second reducing joint 401 is installed between the second pressure relief valve 202 and the second expansion pipeline 4.
[0023] In this embodiment: By installing the pressure relief valve and the expansion pipeline through the reducing joint, pipelines with different diameters can be installed, and it is also convenient for the staff to disassemble the pressure relief valve for maintenance.
[0024] The working principle and usage process of the present utility model: When the calcined ore single bin pump 1 and the flue gas single bin pump 2 relieve pressure at their outlet pipelines, the powder and gas overflowing from the pipelines are sucked into the first expansion pipeline 3 and the second expansion pipeline 4. The two expansion pipelines provide space for the first-stage pressure relief of the pipelines. The powder and gas in the two expansion pipelines both enter the cyclone dust collector 5 for dust reduction, thereby achieving the effect of secondary pressure relief. During the dust reduction process, since the calcined ore single bin pump 1 is connected to the flue gas single bin pump 2, the cyclone dust collector 5 can always maintain a negative pressure state. At the same time, part of the powder gas overflowing from the cyclone dust collector 5 enters the bag dust collector 6 for dust reduction. The powder after dust reduction in the bag dust collector 6 enters the middle bin of the calcined ore single bin pump 1 through the first dust collection pipeline 8. The powder after dust reduction in the cyclone dust collector 5 is concentrated into the first dust collection pipeline 8 through the second dust collection pipeline 9, and finally all enters the bin of the calcined ore single bin pump 1.
[0025] The technical solutions provided by the embodiments of the present utility model have been introduced in detail above. Specific examples are used in this article to elaborate on the principles and implementation manners of the embodiments of the present utility model. The descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present utility model. At the same time, for those of ordinary skill in the art, based on the embodiments of the present utility model, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present utility model.
Claims
1. A pressure relief and dust collection system for a pneumatic conveying pump in zinc smelting, comprising a roasted ore single-bin pump (1), a flue gas single-bin pump (2), a cyclone dust collector (5), and a bag filter (6), characterized in that: The outlets of the said calcined ore single-bin pump (1) and the flue gas single-bin pump (2) are respectively connected to a first outlet pipeline (101) and a second outlet pipeline (201). A first pressure relief valve (102) and a second pressure relief valve (202) are respectively installed in the middle parts of the first outlet pipeline (101) and the second outlet pipeline (201). The outlets of the first pressure relief valve (102) and the second pressure relief valve (202) are respectively installed with a first expansion pipeline (3) and a second expansion pipeline (4). The outlet ends of the first expansion pipeline (3) and the second expansion pipeline (4) are connected to the inlet end of a cyclone dust collector (5). A connecting pipeline (7) is connected between the inlet end of the cyclone dust collector (5) and the inlet end of a bag filter (6).
2. The pressure relief and dust collection system of a zinc smelting pneumatic conveying pump according to claim 1, characterized in that: A first dust collection pipeline (8) is installed at the outlet of the said bag filter (6). The first dust collection pipeline (8) is communicated with the bin of the calcined ore single-bin pump (1). A second dust collection pipeline (9) is installed at the outlet of the cyclone dust collector (5). The other end of the second dust collection pipeline (9) is communicated with the middle part of the first dust collection pipeline (8).
3. The pressure relief and dust collection system of a zinc smelting pneumatic conveying pump according to claim 1, characterized in that: The inner diameters of the first expansion pipeline (3) and the second expansion pipeline (4) are respectively larger than the inner diameters of the first outlet pipeline (101) and the second outlet pipeline (201).
4. The pressure relief and dust collection system of a zinc smelting pneumatic conveying pump according to claim 1, characterized in that: A first reducer joint (301) is installed between the first pressure relief valve (102) and the first expansion pipeline (3). A second reducer joint (401) is installed between the second pressure relief valve (202) and the second expansion pipeline (4).