Siphon type atomizing dust removal device

Abstract

The utility model provides a siphon type atomization dust removal device, through the blast blower, venturi, concentric reducer, liquid self -suction pool and gas -liquid separation tank are communicated in proper order, the concentric reducer is provided with liquid self -suction pool below, the liquid self -suction pool contains the liquid for adsorbing or reacting with dust -bearing gas, and the pipeline that communicates with the siphon mouth of concentric reducer is below the liquid level of liquid self -suction pool, constructs a high -efficient and low -cost dust removal device, utilizes the venturi to carry out primary acceleration to dust -bearing gas, then further utilizes Bernoulli's principle through the structure of concentric reducer, forms the remarkable negative pressure at its siphon mouth, thereby automatically, continuously from the siphon liquid in the liquid self -suction pool below, the utility model simplifies the overall structure, and the energy consumption and equipment manufacturing cost are reduced more greatly.

Description

Technical Field

[0001] This utility model belongs to the field of dust removal technology, specifically relating to a siphon-type atomizing dust removal device. Background Technology

[0002] In industrial sectors such as basic chemicals, mining processing, metal smelting, and building materials production, a large amount of dust-laden gas is generated during the production process. Effective dust removal is a necessary step to ensure safe production and meet environmental emission standards.

[0003] Currently, the dust removal system commonly used in the basic chemical industry is the spray dust removal system, which cannot achieve the dust removal effect in one go. It requires multiple processes and multiple dust removal devices to achieve the dust removal effect. In the second process and subsequent processes, the high humidity of the dust-laden gas can easily cause blockages in the equipment and its auxiliary pipelines, requiring frequent cleaning by maintenance personnel. This is labor-intensive and does not easily achieve the desired dust removal effect.

[0004] Therefore, there is an urgent need in this field for a dust removal device with a simpler structure and higher efficiency. Utility Model Content

[0005] This invention provides a siphon-type atomizing dust removal device to solve the problems of cumbersome processes and easy pipe blockage in existing dust removal equipment.

[0006] This utility model provides a siphon-type atomizing dust removal device, including a blower, a venturi tube, a concentric reducer, a liquid self-priming tank, and a gas-liquid separator. Dust-laden gas is connected to the inlet of a venturi tube through the outlet of a blower. The outlet of the venturi tube is connected to the inlet of a concentric reducer. A liquid self-priming tank is installed below the concentric reducer, which contains liquid for adsorbing or reacting with the dust-laden gas. The pipe connected to the siphon port of the concentric reducer extends below the liquid surface of the liquid self-priming tank. The outlet of the concentric reducer is connected to the inlet of a gas-liquid separator. The bottom outlet of the gas-liquid separator is used to remove dust-laden mist, and the top outlet of the gas-liquid separator is used to remove the gas after dust removal.

[0007] Compared with the prior art, the advantages of this utility model are as follows: This utility model constructs a high-efficiency and low-cost dust removal device by sequentially connecting a blower, a venturi tube, a concentric reducer, a liquid self-priming tank, and a gas-liquid separator; after the dust-laden gas is initially accelerated by the venturi tube, the structure of the concentric reducer further utilizes Bernoulli's principle to form a significant negative pressure at its siphon port, thereby automatically and continuously siphoning liquid from the liquid self-priming tank below; This utility model simplifies the overall structure and significantly reduces energy consumption and equipment manufacturing costs.

[0008] Furthermore, the concentric reducer includes an inlet section, a contraction section, and a straight section connected in sequence. The diameter of the inlet section is larger than the diameter of the straight section, and the siphon is located on the straight section.

[0009] Furthermore, the outlet of the venturi tube is connected to the inlet section of the concentric reducer.

[0010] Furthermore, the diameter of the straight section of the concentric reducer is larger than the throat diameter of the venturi tube.

[0011] Furthermore, the ratio of the throat diameter of the venturi tube to the diameter of the straight section of the concentric reducer is 1:(4~10).

[0012] Furthermore, the throttling orifice ratio of the venturi tube is 0.2 to 0.6.

[0013] Furthermore, a wire mesh demister is installed on the top of the gas-liquid separator.

[0014] Furthermore, the taper of the concentric reducer's constriction section is 6°~20°.

[0015] Furthermore, the taper of the concentric reducer's constriction section is 8°~12°. Attached Figure Description

[0016] Figure 1 This is a siphon-type atomizing dust removal device in one embodiment of the present utility model.

[0017] Explanation of reference numerals in the attached figures: 1. Blower; 2. Venturi tube; 3. Concentric reducer; 4. Liquid self-priming tank; 5. Gas-liquid separator; 6. Wire mesh demister. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Please see Figure 1 This utility model provides a siphon-type atomizing dust removal device, including a blower 1, a venturi tube 2, a concentric reducer 3, a liquid self-priming tank 4, and a gas-liquid separator 5. Dust-laden gas is connected to the inlet of Venturi tube 2 through the outlet of blower 1. The outlet of Venturi tube 2 is connected to the inlet of concentric reducer 3. A liquid self-priming tank 4 is provided below the concentric reducer 3. The liquid self-priming tank 4 contains liquid for adsorbing or reacting with the dust-laden gas. The pipe connected to the siphon port of the concentric reducer 3 extends below the liquid surface of the liquid self-priming tank 4. The outlet of the concentric reducer 3 is connected to the inlet of the gas-liquid separator. The bottom outlet of the gas-liquid separator is used to remove dust-laden mist, and the top outlet of the gas-liquid separator is used to remove the gas after dust removal.

[0020] This invention constructs a high-efficiency and low-cost dust removal device by sequentially connecting a blower 1, a venturi tube 2, a concentric reducer 3, a liquid self-priming tank 4, and a gas-liquid separator 5. After the dust-laden gas is initially accelerated by the venturi tube 2, the structure of the concentric reducer 3 further utilizes Bernoulli's principle to create a significant negative pressure at its siphon port, thereby automatically and continuously siphoning liquid from the liquid self-priming tank 4 below. This invention simplifies the overall structure and significantly reduces energy consumption and equipment manufacturing costs. The sucked-in liquid is instantly atomized and dispersed in the high-speed airflow, forming extremely fine droplets, greatly increasing the contact area with dust particles, thus achieving highly efficient adsorption and chemical reaction within a single-stage device. Finally, the gas-liquid mixture is effectively separated in the gas-liquid separator 5, the purified gas meets emission standards, and the captured liquid and particulate matter can be recycled after settling and recovery. The entire device has a compact structure, making it suitable for low-cost and high-efficiency technical transformation of existing spray dust removal systems. It effectively solves the technical problems mentioned in the background technology, such as multi-stage treatment, easy pipe blockage, and high maintenance intensity.

[0021] Specifically, the concentric reducer 3 is defined as a three-section structure consisting of an inlet section, a contraction section, and a straight section. The siphon inlet is located in the straight section, ensuring both the rationality of the structural design and the high efficiency of the fluid dynamics effect. The large diameter of the inlet section facilitates the reception of airflow from the Venturi tube 2, while the contraction section allows for smooth acceleration of the airflow, ultimately reaching its maximum velocity and forming a stable, strong negative pressure zone in the straight section with the smallest diameter. Placing the siphon inlet in this straight section with the strongest negative pressure maximizes the siphon effect, ensuring efficient and stable liquid intake and providing a reliable guarantee for subsequent thorough atomization and dust removal.

[0022] Specifically, the outlet of the Venturi tube 2 is connected to the inlet section of the concentric reducer 3. The diameter of the straight section of the concentric reducer 3 is larger than the throat diameter of the Venturi tube 2; the ratio of the throat diameter of the Venturi tube 2 to the diameter of the straight section of the concentric reducer 3 is 1:(4~10); the orifice ratio of the Venturi tube 2 is 0.2~0.6.

[0023] By defining the connection method and size ratios as described above, a highly efficient two-stage acceleration and strong negative pressure generation system is constructed. This allows the airflow, initially accelerated and already at high speed by the Venturi tube 2, to enter the concentric reducer 3 without interruption. After exiting the narrowest part (throat) of the Venturi tube 2, the airflow enters a relatively loose but still narrow channel (the straight section of the concentric reducer 3). According to Bernoulli's principle, in the same flow tube, the pressure is lower where the flow velocity is higher. Although the diameter of the straight section is larger than the throat diameter, its flow area is still much smaller than that of the system inlet pipe. Therefore, the airflow velocity here is still much higher than the initial velocity and significantly higher than its velocity if it were to directly enter the large-diameter pipe. It is this fluid, maintained at a high speed, that generates a strong and continuous local negative pressure (vacuum effect) at the siphon inlet of the straight section, thereby achieving efficient siphoning of the liquid.

[0024] Optionally, a wire mesh demister 6 is provided on the top of the gas-liquid separator 5.

[0025] The wire mesh demister 6, with its huge specific surface area and micron-level pore structure, can efficiently intercept, collide, aggregate, and finally settle the fine droplets and moist dust that are still suspended in the gas after primary separation. This further improves the accuracy and efficiency of gas-liquid separation, ensures the cleanliness of the final discharged gas, maximizes the recovery rate of liquid, realizes resource recycling, and effectively prevents secondary pollution or damage to downstream equipment caused by entrainment emissions.

[0026] Optionally, the taper of the concentric reducer 3 in its contraction section is 6° to 20°, and further, the taper of the concentric reducer 3 in its contraction section is 8° to 12°.

[0027] By limiting the taper of the concentric reducer 3, the energy efficiency ratio of the device is further optimized, making the siphon process more stable and reliable.

[0028] In use, the blower 1 of the existing dust removal system is used to send the dust-laden gas into the pipeline with an initial wind speed of about 8 m / s. The wind speed is increased by the venturi tube 2 (experiments have shown that the wind speed can reach more than 50 m / s). On the other side of the venturi tube 2 is a concentric reducer 3. Below the outlet of the concentric reducer 3 is a liquid self-priming tank 4 (the liquid in the self-priming tank is set according to the main solid particles contained in the dust-laden gas). According to Bernoulli's principle, when the potential energy is constant, the greater the kinetic energy of the fluid, the smaller the pressure potential energy, which can produce a siphon effect on the liquid in the liquid self-priming tank 4. After the liquid enters the pipeline at high speed, it is directly dispersed and atomized, adsorbing the solid particles in the dust-laden gas or reacting with them chemically. At the end of the pipeline is a gas-liquid separator 5. A wire mesh demister 6 is installed on the top of the tank to make the dust-laden mist settle to the bottom of the tank. It can be reused after being recovered. The gas that has been dust-removed is discharged through the top of the tank.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. If these modifications and variations fall within the scope of the claims of this utility model and their equivalents, they should be considered to be within the protection scope of this utility model.

Claims

1. A siphon-type atomizing dust removal device, characterized in that, This includes blowers, venturi tubes, concentric reducers, liquid self-priming tanks, and gas-liquid separators; Dust-laden gas is connected to the inlet of a venturi tube through the outlet of a blower. The outlet of the venturi tube is connected to the inlet of a concentric reducer. A liquid self-priming tank is installed below the concentric reducer, which contains liquid for adsorbing or reacting with the dust-laden gas. The pipe connected to the siphon port of the concentric reducer extends below the liquid surface of the liquid self-priming tank. The outlet of the concentric reducer is connected to the inlet of a gas-liquid separator. The bottom outlet of the gas-liquid separator is used to remove dust-laden mist, and the top outlet of the gas-liquid separator is used to remove the gas after dust removal.

2. The siphon-type atomizing dust removal device according to claim 1, characterized in that, The concentric reducer includes an inlet section, a contraction section, and a straight section connected in sequence. The diameter of the inlet section is larger than the diameter of the straight section, and the siphon is located on the straight section.

3. The siphon-type atomizing dust removal device according to claim 2, characterized in that, The outlet of the venturi tube is connected to the inlet section of the concentric reducer.

4. The siphon-type atomizing dust removal device according to claim 3, characterized in that, The diameter of the straight section of a concentric reducer is larger than the diameter of the throat of a venturi tube.

5. The siphon-type atomizing dust removal device according to claim 4, characterized in that, The ratio of the throat diameter of the Venturi tube to the diameter of the straight section of the concentric reducer is 1:(4~10).

6. The siphon-type atomizing dust removal device according to any one of claims 1-5, characterized in that, The throttling orifice ratio of a Venturi tube is 0.2 to 0.

6.

7. The siphon-type atomizing dust removal device according to claim 6, characterized in that, A wire mesh demister is installed on the top of the gas-liquid separator.

8. The siphon-type atomizing dust removal device according to claim 6, characterized in that, The taper of the concentric reducer is 6° to 20°.

9. The siphon-type atomizing dust removal device according to claim 8, characterized in that, The taper of the concentric reducer is 8°~12°.

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