One-to-six pipeline conveying device for dry desulphurization in furnace
By designing a one-to-six pipeline delivery device, the problem of uneven desulfurizing agent flow was solved, and the desulfurizing agent was uniformly injected into the incinerator, which improved the desulfurization efficiency and reduced equipment wear and energy consumption.
Patent Information
- Application Number
- CN202520559947.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-03-27
AI Technical Summary
In existing dry desulfurization systems, the flow distribution of the desulfurizing agent is uneven, resulting in low desulfurization efficiency and easy clogging of pipelines.
A one-to-six pipeline conveying device was designed, including a main material conveying pipe, a gas conveying acceleration chamber, and a one-to-six pipeline assembly. Through evenly distributed primary and secondary branch pipes, the desulfurizing agent is ensured to be sprayed evenly into the incinerator, avoiding particle settling and blockage.
It achieves uniform distribution of desulfurizing agent in the incinerator, improves desulfurization efficiency, reduces equipment wear and energy consumption, and simplifies the maintenance process.
Smart Images
Figure CN223782672U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of conveying system for dry desulfurization in furnace, especially to a one-to-six pipeline conveying device for dry desulfurization in furnace, which can uniformly distribute desulfurizer to multiple injection points, and is suitable for desulfurizer conveying of large-scale incineration equipment such as waste incinerator and biomass incinerator. BACKGROUND
[0002] The dry desulfurization technology in furnace is derived from the dual pursuit of efficiency and environmental protection in industrial production. With the awakening of environmental awareness and the implementation of energy-saving and emission-reducing policies, the traditional wet technology is challenged due to its high energy consumption, large water consumption and complicated sewage treatment. In contrast, the dry technology is increasingly favored due to its low energy consumption, water saving and significant environmental benefits. In the process of dry desulfurization in furnace, desulfurizer needs to be injected into multiple points in the incinerator from the silo through the conveying system. Whether the desulfurizer can be uniformly injected into the furnace directly affects the desulfurization efficiency and cost.
[0003] At present, the commonly used pipeline system is to seal the end of the main pipe and set six branch pipes parallel on the main pipe. The desulfurizer is divided into six parts and enters the branch pipes. However, this design has the problem of inconsistent resistance of branch pipes to fluid, leading to uneven flow distribution. In addition, the main pipe type distribution pipeline uses the conversion of static pressure and dynamic pressure to achieve uniform distribution, which is easy to cause particle settlement and pipeline blockage due to reduced flow rate. SUMMARY
[0004] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a one-to-six pipeline conveying device for dry desulfurization in furnace, which can uniformly distribute flow, improve desulfurization efficiency, reduce the amount of desulfurizer used, and avoid the problems of particle settlement and pipeline blockage.
[0005] The technical solution adopted by the utility model to solve its technical problem is:
[0006] A one-to-six pipeline conveying device for dry desulfurization in furnace is used to uniformly inject desulfurizer in the silo into the incinerator, which has a material main conveying pipe. One end of the material main conveying pipe is provided with a gas conveying acceleration chamber. The other end of the material main conveying pipe is provided with a one-to-six pipeline assembly. The material inlet of the gas conveying acceleration chamber is connected with the silo. The gas inlet of the gas conveying acceleration chamber is connected with a Roots blower through a gas pipeline.
[0007] The one-to-six pipeline assembly includes a main pipe, one end of which is connected with the material main conveying pipe, and the other end of which is connected with two symmetrically distributed first branch pipes. The output end of the first branch pipe is provided with a pipe cap for plugging the first branch pipe. Three second branch pipes are installed on the pipe cap.
[0008] The three secondary branch pipes are inserted into the primary branch pipe through the pipe cap and are uniformly distributed on the primary branch pipe.
[0009] The main material conveying pipe, gas conveying acceleration chamber, and a six-way pipe assembly are provided, achieving uniform injection of the desulfurizing agent from the bin to the incinerator. This design ensures that the desulfurizing agent is uniformly distributed in the incinerator, improving desulfurization efficiency while reducing equipment wear and energy loss caused by uneven distribution of the desulfurizing agent. The secondary branch pipes are uniformly and symmetrically distributed, further optimizing the dispersion effect of the desulfurizing agent and improving desulfurization efficiency.
[0010] After the material enters the main material conveying pipe, it is first evenly divided into two paths through two primary branch pipes. Then, the two paths of material continue to flow through their respective primary branch pipes, and at the end of each primary branch pipe, the material is further divided through the connected secondary branch pipes. Since each primary branch pipe and its secondary branch pipes are consistent in layout, size, and flow resistance design, the resistance encountered by the material when flowing through each branch pipe is the same. This design principle ensures that the material flow is highly uniform.
[0011] Further, the main pipe and the two primary branch pipes are arranged in a Y shape, ensuring uniform material distribution and avoiding excessive or insufficient flow in a branch pipe, thereby ensuring uniform injection of the desulfurizing agent in the incinerator.
[0012] Further, the angle α between the center axes of the two primary branch pipes is 20-50°, optimizing the material distribution effect and ensuring a wider coverage of the desulfurizing agent in the incinerator, resulting in more uniform desulfurization.
[0013] Further, a screw feeder is provided between the bin and the gas conveying acceleration chamber, which can accurately control the amount of desulfurizing agent supplied, ensuring that the desulfurizing agent is supplied as needed, avoiding the decrease in desulfurization efficiency and equipment wear caused by excessive or insufficient supply.
[0014] Further, a main pipe flange is connected between the main material conveying pipe and the main pipe, which facilitates disassembly and maintenance, reducing maintenance costs. At the same time, the flange connection ensures the sealing of the material conveying, preventing leakage of the desulfurizing agent.
[0015] Further, the screw feeder is located above the gas conveying acceleration chamber, ensuring that the desulfurizing agent enters the gas conveying acceleration chamber smoothly under the action of gravity, reducing the risk of blockage and improving the conveying efficiency.
[0016] Further, a pressure gauge is installed on the gas pipeline to detect the pressure of the pipeline, ensuring the stability of gas conveying and avoiding the influence of pressure fluctuations on the conveying effect of the desulfurizing agent.
[0017] The utility model discloses the beneficial effect is: the utility model simple structure, reasonable in design has the following advantages:
[0018] (1), set up six pipeline components, and the material is first evenly divided into two ways, and is further divided into six ways, ensure that the flow of each branch is evenly distributed, solve the uneven flow distribution problem in the prior art, further improve the desulfurization efficiency;
[0019] (2), the distribution of primary branch pipe and secondary branch pipe, ensure that the resistance of each branch pipe is same, both avoid the flow uneven caused by different resistance, and avoid the particle settlement and pipeline blockage problem caused by the flow rate reduction;
[0020] (3), low in cost, gas pipeline, material main conveying pipe, mother pipe, primary branch pipe, secondary branch pipe and pipe cap adopt serialization, standardization's chemical industry pipe fitting, and the pipeline system assembly cost is low, and simple to make;
[0021] (4), be equipped with screw feeder and pressure gauge, further improve the stability and controllability of conveying device, and the whole device structure is simple, and easy to maintain, can effectively improve the desulfurization efficiency, ensure that the uniform distribution of desulfurizer in incinerator, reduce the waste of desulfurizer, reduce operating cost, have higher practicality and economy. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will be briefly introduced the drawings needed to be used in the specific embodiment or the prior art description, obviously, the drawings in the following description is some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.
[0023] Figure 1 It is the structure schematic diagram of the utility model;
[0024] Figure 2 It is the structure schematic diagram of one six pipeline components in the utility model;
[0025] Figure 3 It is Figure 2 Right side view.
[0026] In the drawing: 1. Roots blower, 2. gas pipeline, 3. silo, 4. screw feeder, 5. gas conveying acceleration chamber, 6. material main conveying pipe, 7. mother pipe flange, 8. mother pipe, 9. primary branch pipe, 10. secondary branch pipe, 11. pipe cap, 12. pressure gauge. DETAILED DESCRIPTION
[0027] It should be noted that the following detailed description is illustrative only and is intended to provide further description of the present application. 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 the example embodiments according to the present application belong.
[0028] It is to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It is also to be understood that the terms "comprising," "including," and "having" as used herein are specifically intended to be read as open-ended terms. That is, the use of these terms in the present specification indicates the possibility that there are other elements or steps in addition to those listed.
[0029] The technical solutions of the present application will be described clearly and completely below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0030] Glossary:
[0031] Flow: Flow refers to the amount of fluid flowing through the effective cross-section of a closed pipe per unit of time, also known as instantaneous flow. When the fluid volume is expressed in volume, it is called volumetric flow; when the fluid volume is expressed in mass, it is called mass flow.
[0032] Incinerator: An incinerator is a device commonly used for waste or biomass harmless treatment. The basic principle is to use high temperature (generally between 850℃ and 1100℃) to decompose organic matter in solid waste, converting it into harmless gas, water vapor and ash.
[0033] Flue gas: Here refers to the mixture of gas, smoke and pollutants produced after the incineration of waste or biomass.
[0034] Dry method in the furnace: Dry method desulfurization in the furnace is to add desulfurizer such as limestone, gypsum, etc. in the incinerator. These desulfurizers react chemically with sulfur dioxide produced by fuel combustion at high temperatures to form calcium sulfate or other soluble calcium sulfide salts, thereby achieving the purpose of desulfurization.
[0035] For example, Figures 1-3The one-sixth pipeline conveying device for the dry desulfurization in the furnace is used for uniformly spraying the desulfurizer in the stock bin 1 into the incinerator, and has a material main conveying pipe 6, one end of the material main conveying pipe 6 is provided with a gas conveying acceleration chamber 5, the other end of the material main conveying pipe 6 is provided with a one-sixth pipeline assembly, the material inlet of the gas conveying acceleration chamber 5 is connected with a stock bin 3, and the gas inlet of the gas conveying acceleration chamber 5 is connected with a Roots blower 1 through a gas pipeline 2; the one-sixth pipeline assembly comprises a mother pipe 8, one end of the mother pipe 8 is connected with the material main conveying pipe 6, the other end of the mother pipe 8 is connected with two first-level branch pipes 9 which are symmetrically distributed, the output end of the first-level branch pipe 9 is provided with a pipe cap 11 used for plugging the first-level branch pipe 9, and three second-level branch pipes 10 are arranged on the pipe cap 11; the three second-level branch pipes 10 are inserted into the first-level branch pipe 9 through the pipe cap 11 and are uniformly distributed on the first-level branch pipe 9. The mother pipe 8 and the two first-level branch pipes 9 are in Y-shaped distribution.
[0036] The included angle α between the central axes of the two first-level branch pipes 9 is 20-50°.
[0037] The stock bin 3 and the gas conveying acceleration chamber 5 are provided with a screw feeder 4.
[0038] The material main conveying pipe 6 and the mother pipe 8 are connected with a mother pipe flange 7.
[0039] The screw feeder 4 is arranged above the gas conveying acceleration chamber.
[0040] A pressure gauge 12 for detecting the pipeline pressure is arranged on the gas pipeline 2.
[0041] The working process of the one-sixth pipeline conveying device for the dry desulfurization in the furnace is as follows: the desulfurizer in the stock bin 3 is fed to the gas conveying acceleration chamber 5 through the screw feeder 4, and the Roots blower 1 conveys the gas to the gas conveying acceleration chamber 5. The conveying speed of the material is increased in the gas conveying acceleration chamber 5, and the material is conveyed to the mother pipe 8 through the material main conveying pipe 6. After entering the mother pipe 8, the material is first uniformly divided into two paths through the two first-level branch pipes 9. Then, the two paths of the material continue to flow through the first-level branch pipes 9 respectively, and are further divided at the end of each first-level branch pipe 9 through the connected second-level branch pipes 10. Since the layout, size and flow resistance design of each first-level branch pipe 9 and the second-level branch pipes 10 thereon are consistent, the resistance encountered by the material when flowing through each branch pipe is ensured to be the same. This design principle ensures that the material in the first-level branch pipe 9 is equally divided into each second-level branch pipe 10, thereby ensuring the high uniformity of the material flow.
[0042] In summary, the one-sixth pipeline assembly is arranged, the uniform spraying and accurate feeding of the desulfurizer are realized, the desulfurization efficiency is improved, and the equipment wear and energy loss are reduced. Meanwhile, the device also has the advantages of compact structure, convenient maintenance, safety and reliability, and is suitable for the desulfurization treatment of incinerators of various scales.
[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A six-pipeline conveying device for in-furnace dry desulfurization, used for uniformly injecting desulfurizing agent into the incinerator from the silo (3), characterized in that: It has a main material conveying pipe (6), one end of the main material conveying pipe (6) is equipped with a gas conveying acceleration chamber (5), the other end of the main material conveying pipe (6) is equipped with a six-way pipeline assembly, the material inlet of the gas conveying acceleration chamber (5) is connected to a silo (3), and the gas inlet of the gas conveying acceleration chamber (5) is connected to a Roots blower (1) through a gas pipeline (2). The one-to-six pipeline assembly includes a main pipe (8), one end of which is connected to the main material conveying pipe (6), and the other end of which is connected to two symmetrically distributed primary branch pipes (9). The output end of the primary branch pipe (9) is equipped with a pipe cap (11) for sealing the primary branch pipe (9), and three secondary branch pipes (10) are installed on the pipe cap (11). The three secondary branch pipes (10) pass through the pipe cap (11) and are inserted into the primary branch pipe (9), and are evenly distributed on the primary branch pipe (9).
2. The one-to-six pipeline conveying device for in-furnace dry desulfurization according to claim 1, characterized in that: The main pipe (8) and the two primary branch pipes (9) are distributed in a Y-shape.
3. The one-to-six pipeline conveying device for in-furnace dry desulfurization according to claim 1, characterized in that: The included angle α between the central axes of the two primary branch pipes (9) is 20 to 50°.
4. The one-to-six pipeline conveying device for in-furnace dry desulfurization according to claim 1, characterized in that: A screw feeder (4) is provided between the hopper (3) and the gas conveying acceleration chamber (5).
5. A one-to-six pipeline conveying device for in-furnace dry desulfurization according to claim 1, characterized in that: A mother pipe flange (7) connects the main material conveying pipe (6) and the mother pipe (8).
6. A one-to-six pipeline conveying device for in-furnace dry desulfurization according to claim 4, characterized in that: The screw feeder (4) is located above the gas conveying acceleration chamber.
7. A one-to-six pipeline conveying device for in-furnace dry desulfurization according to claim 1, characterized in that: A pressure gauge (12) for detecting pipeline pressure is installed on the gas pipeline (2).