CN213409081U - Blender and spray head thereof - Google Patents

Abstract

The application provides a blender and a spray head thereof, wherein the spray head of the blender comprises a connecting section and a spraying section, and the connecting section is used for conveying a medium to be sprayed to the spraying section; the jetting section comprises a jetting end face, a plurality of first jetting ports are arranged on the jetting end face, and included angles between the jetting directions of the first jetting ports and the central axis of the jetting end face are increased along with the increase of the distance between the first jetting ports and the central point of the jetting end face, so that the medium is jetted out from the jetting end face in a radial mode. Use this application can make the harmful substance in spun medium and the flow flue gas fully contact, improved the probability that the harmful substance in spun medium and the flow flue gas produced the absorption or takes place the reaction.

Description

Blender and spray head thereof

Technical Field

The application relates to the technical field of blenders, in particular to a blender and a spray head thereof.

Background

At present, in the domestic industrial flue gas desulfurization or dust removal and purification engineering of harmful gas containing substances such as tar, asphalt and the like, powdery solid materials are often required to be used as adsorbents, and the powder is uniformly sprayed into the flue gas by a mixing method, which is called spraying and mixing. The requirement is that the sprayed powder (or fine powder) solid material can be fully contacted with harmful substances (such as volatile tar gas, water vapor, oil mist, sulfur dioxide and other acid and alkaline gases) in the smoke to generate chemical reaction or adsorption phenomenon, so as to achieve the purpose of eliminating or reducing the original harmful substances in the smoke.

In the prior art, (taking dust removal purification as an example) usually, powdered solid materials (dust) in a dust removal system are mixed and contacted with the flue gas in the flue gas, SO that the dust and volatile tar, water vapor or gases such as SO2 in the flue gas form an adsorption phenomenon or generate a chemical reaction, thereby achieving the purpose of eliminating or reducing harmful substances in the original flue gas. However, in the conventional device for mixing dust, the airflow containing dust is ejected at a high speed in a straight flow, the area for spreading the dust is limited, and the contact between the dust and the flue gas is insufficient, so that the probability of adsorption or reaction is limited, and the effect of eliminating or reducing the harmful substances in the flue gas is not ideal.

SUMMERY OF THE UTILITY MODEL

This application aims at solving one of the technical problem that exists among the prior art at least, provides a blender and shower nozzle thereof, can make the spun medium fully contact with the harmful substance in the flowing flue gas, has improved the probability that the harmful substance in spun medium and the flowing flue gas produced the absorption or reacted.

To achieve the object of the present application, a first aspect provides a spray head of a blender, comprising a connecting section and a spraying section, wherein the connecting section is used for conveying a medium to be sprayed to the spraying section; the jetting section comprises a jetting end face, a plurality of first jetting ports are arranged on the jetting end face, and included angles between the jetting directions of the first jetting ports and the central axis of the jetting end face are increased along with the increase of the distance between the first jetting ports and the central point of the jetting end face, so that the medium is jetted out from the jetting end face in a radial mode.

Optionally, the ejection end face includes a curved surface, and the ejection directions of the first ejection ports are perpendicular to the curved surface.

Optionally, the curved surface includes any one of a spherical surface, an elliptical surface, or an arc surface.

Alternatively, three adjacent first ejection openings, which are not in the same direction, among the plurality of first ejection openings are distributed in an equilateral triangle.

Optionally, the device further comprises a tubular divergent section, two ends of the divergent section are respectively connected with the connecting section and the injection section, and the caliber of the divergent section gradually increases from one end close to the connecting section to one end close to the injection section.

Optionally, the diverging section comprises a tapered tube having a taper angle greater than or equal to 45 ° and less than or equal to 65 °.

Optionally, the injection end face is a hemisphere, the opening end of the hemisphere is connected to the conical tube, and the diameter of the hemisphere is equal to the diameter of one end, close to the injection section, of the conical tube.

Optionally, the divergent section is provided with a plurality of second injection ports for injecting the medium.

Optionally, an included angle between the injection direction of the second injection port and the central axis of the injection end surface is less than 90 °.

In order to achieve the purpose of the present application, a second aspect provides a blender, comprising a conveying pipe and a spray head, wherein the conveying pipe is used for conveying a medium to be sprayed to the spray head, the spray head is used for spraying the medium, and the spray head is the spray head of the first aspect.

The application has the following beneficial effects:

the blender and the spray head thereof provided by the application are provided with a spray end face, a plurality of first spray ports are arranged on the spray end face, the included angle between the spray direction of the first spray ports and the central axis of the spray end face is increased along with the increase of the distance between the first spray ports and the central point of the spray end face, the spray directions of the first spray ports at different positions on the spray end face are different, the spray direction close to the central position of the spray end face tends to be vertical to the direction of the spray end face, and the included angle between the spray direction and the central axis of the spray end face is larger as the first spray ports are closer to the edge of the spray end face, so that media in the spray head are radial when sprayed out from the whole spray end face, thereby effectively increasing the spray area of the media, being particularly suitable for spraying powdery desulfurizer into flue gas containing sulfur dioxide in desulfurization engineering or pre-spraying in the dust removal process of the flue gas, and the spraying device is used for spraying dust into the flue gas to adsorb volatile tar smoke, asphalt smoke, water vapor and the like in the flue gas, and can also be extended to spray liquid solutions with large diffusion areas and uniformity, such as a liquid desulfurizer, pesticide spraying, water vapor spraying by high-temperature gas for cooling, steam elimination, color bands with different colors and the like.

Drawings

FIG. 1 is a schematic structural diagram of a spray head of a blender according to an embodiment of the present disclosure;

FIG. 2 is a schematic left side view of a sparger of the blender according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a blender installed in a flue gas duct according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a blender according to an embodiment of the present disclosure installed in a tank.

Detailed Description

Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

The following describes the technical solutions of the present application and how to solve the above technical problems in specific embodiments with reference to the accompanying drawings.

At present, in order to achieve the purposes of recycling waste, reducing pollution and improving environmental protection, a dust removal system is usually arranged in the production process of a coke oven, a pre-spraying method is adopted in a coal-charging dust removal project, dust collected by the dust removal system is conveyed into a flue gas pipeline containing tar fume through compressed air, the dust is sprayed out from the tail end of the flue gas pipeline at a high speed and forms a linear high-speed airflow cloud, and in the slowing process of the airflow cloud, the dust contained in the airflow cloud is pre-mixed with the flue gas in the flue gas pipeline, so that the dust is contacted with harmful substances (such as volatile tar gas, water vapor, oil mist, sulfur dioxide and other acid and alkaline gases) in the flue gas, an adsorption phenomenon is formed, or a chemical reaction is generated, and the purpose of eliminating or reducing the harmful substances in the original flue gas is achieved. However, as described above, the cloud of the dust-containing gas ejected at a high speed is linear, the range of diffusion thereof is relatively limited, and the contact between the dust and the flue gas is insufficient, so that the generation of adsorption or the occurrence of reaction is limited, which is not preferable. Therefore, there is a need for a blender that can adequately contact the dust with the flue gas.

The embodiment provides a spray head 101 of a blender, the spray head 101 comprises a connecting section 10 and a spraying section, the connecting section 10 is used for conveying a medium to be sprayed to the spraying section; the injection section comprises an injection end face 20, a plurality of first injection ports 21 are arranged on the injection end face 20, and the included angle between the injection direction of the first injection ports 21 and the central axis of the injection end face 20 is increased along with the increase of the distance between the first injection ports 21 and the central point of the injection end face 20, so that the medium is radially sprayed out of the injection end face 20.

As shown in fig. 1, the connection section 10 may be, but is not limited to, a circular pipe structure (for example, it may also be a square pipe), and one end of the connection section may be connected to the delivery pipe of the blender, and the other end of the connection section is connected to the inlet end of the spraying section, so as to deliver the medium to be sprayed in the delivery pipe to the spraying section. Specifically, the connection section 10 and the injection section may be integrally formed or fixedly connected (e.g., welded), and the connection section 10 and the delivery pipe may be detachably connected, such as clamped, screwed (the connection section 10 is provided with an external thread, and the delivery pipe is provided with an internal thread), and the like. The connecting section 10 and the injection section can be made of materials with certain mechanical strength, corrosion resistance and high temperature resistance, such as carbon steel, rigid plastics and the like. The medium in this embodiment is not limited to solid materials such as dust, powder, and granules, but may be a liquid, gas, or mixed phase, and the size of the head 101, the pressure of the medium to be ejected, or the diameter of the ejection holes may be changed to achieve a spraying and mixing effect for various purposes.

The nozzle 101 of the blender provided by this embodiment has a spraying end face 20, a plurality of first injection ports 21 are arranged on the spraying end face 20, and the included angle between the spraying direction of the first injection ports 21 and the central axis of the spraying end face 20 increases with the increase of the distance between the first injection ports 21 and the central point of the spraying end face 20, the spraying directions of the first injection ports 21 at different positions on the spraying end face 20 are different, the spraying direction near the central point of the spraying end face 20 tends to be vertical to the direction of the spraying end face 20, and the included angle between the spraying direction of the first injection ports 21 closer to the edge of the spraying end face 20 and the central axis of the spraying end face 20 is larger, so that the medium in the nozzle 101 is radial when being sprayed from the whole spraying end face 20, thereby effectively increasing the spraying area of the medium, and being particularly suitable for an injector for spraying a powdery desulfurizer to flue gas containing sulfur dioxide in a desulfurization project, or the spraying device is used for the pre-spraying nozzle 101 in the dust removal process of the coke oven coal-charging flue gas, spraying dust to the flue gas to absorb volatile tar smoke, asphalt smoke, water vapor and the like in the flue gas, and can also be extended to spray liquid solutions with large diffusion areas and uniformity, such as liquid desulfurizer, pesticide spraying, water vapor spraying by high-temperature gas for cooling, a water sprayer for eliminating steam, color bands spraying different colors and the like.

It should be noted that, although the present embodiment is based on the concept of fully mixing, adsorbing, reacting and the like the dust collected by the dust removal system in the production process of the coke oven and the flue gas containing the tar fume, the present embodiment is not limited to the coal charging process in the coke oven system, but may also be applied to other processes in the coke and coal, or to the environmental protection treatment in enterprises such as metallurgy, mine, power plant and the like, when the harmful substances (such as volatile tar gas, water vapor, oil mist, acid, alkaline gas such as SO2 and the like) in the flue gas need to be recovered or adsorbed, the harmful substances in the flue gas are sprayed and mixed with the powder or the solvent, SO as to achieve the scene that the powder or the solvent is fully contacted with the harmful substances and is adsorbed or chemically reacted.

In a specific embodiment of this embodiment, as shown in fig. 1 and 2, the spraying end surface 20 may include a curved surface, so that the spraying directions of the first spraying openings 21 on the spraying end surface 20 may be all perpendicular to the spraying end surface 20, thereby ensuring the spraying direction of the first spraying openings 21, enabling the medium in the spraying head 101 to be sprayed out from the spraying end surface 20 in a radial shape, further ensuring the spraying range and uniformity of the medium, facilitating the processing of the first spraying openings 21, and also reducing the resistance of the spraying head 101 (which may be understood as a blender) to the flue gas in the pipeline (generally, the spraying direction of the spraying head 101 is opposite to the flow direction of the flue gas in the pipeline), so that the flue gas smoothly passes through the pipeline.

The curved surface may include any one of a spherical surface, an elliptical surface, or an arc surface, and is preferably a spherical surface in this embodiment, and a more regular shape may make the arrangement of the first injection ports 21 more uniform, and generally, the blender and the injection head 101 thereof are disposed in the pipeline, and the injection end surface 20 is set to be a spherical surface, so that the total coverage area of the medium ejected from the injection end surface 20 in the radial direction of the pipeline is also circular, which is more convenient for the medium to fill the pipeline in the radial direction of the pipeline.

In another embodiment of the present invention, three adjacent first injection ports 21, which are not in the same direction, of the plurality of first injection ports 21 are distributed in an equilateral triangle, the first injection ports 21 may be arranged to be distributed over the injection end surface 20, the diameter of the first injection ports 21 may be several millimeters (e.g., 5 millimeters), and the distance between two adjacent first injection ports may be several tens of millimeters (e.g., 10 millimeters, 15 millimeters, 20 millimeters, 23 millimeters), so that the distances between two adjacent first injection ports 21 are all equal, the arrangement of the first injection ports 21 on the injection end surface 20 is more uniform, the sprayed airflow containing the powder or the solvent has a large dispersion area, a radial powder flow such as a hedgehog-shaped powder flow is formed, and the powder flow can be sufficiently contacted with the smoke gas above, below, left, right, and in front of the nozzle 101, so that the powder and the harmful substance are fused and completely adsorbed or reacted.

In another embodiment of this embodiment, as shown in fig. 1, the nozzle 101 of the blender may further include a tubular divergent section 30, two ends of the divergent section 30 are respectively connected to the connecting section 10 and the jetting section, and the caliber of the divergent section 30 gradually increases from one end near the connecting section 10 to one end near the jetting section, i.e., the divergent section 30 may be in a horn shape, so as to increase the internal space of the nozzle 101, so that the medium to be sprayed can be sufficiently diffused inside the nozzle 101, thereby enabling the medium to be uniformly sprayed from various positions of the jetting end face 20.

Wherein the diverging section 30 may comprise a tapered tube having a taper angle greater than or equal to 45 ° and less than or equal to 65 °. It will be understood that the tapered tube herein does not include a tapered apex, but rather the profile may be considered as a truncated cone. The cone angle that the accessible set up reasonable conical tube can enough increase the area of spouting terminal surface 20, can guarantee again that the conical tube has certain length to the medium that makes to wait to spray can spread evenly in shower nozzle 101. Preferably, the taper angle of the tapered tube may be 60 °.

In another embodiment of this embodiment, the injection end surface 20 may be a hemisphere, the opening end of the hemisphere is connected to the conical tube, and the diameter of the hemisphere is equal to the diameter of the conical tube near the end of the injection section. Thus, the spraying direction of the first spraying opening 21 at the edge of the spraying end face 20 is approximately vertical to the radial direction of the pipeline, the spraying area of the spraying head 101 can be further increased, the medium is enabled to be more fully contacted with the flue gas in the pipeline, and the adsorption and reaction probability of the medium on harmful substances is further improved.

In another embodiment of this embodiment, as shown in fig. 1, a plurality of second injection ports 31 for injecting a medium may also be disposed on the divergent section 30 to further increase the spraying area of the nozzle 101 and the amount of the sprayed medium, so as to further improve the adsorption efficiency or reaction rate of the medium on the harmful substances in the flue gas. Specifically, the second injection ports 31 may be uniformly distributed over the divergent section 30, the diameter of the second injection ports 31 may be several millimeters, and the distance between two adjacent ports may be several tens of millimeters, similarly to the arrangement of the first injection ports 21. The included angle between the spraying direction of the second spraying opening 31 and the central axis of the spraying end face 20 is smaller than 90 degrees, so that the medium sprayed out of the second spraying opening 31 can move forwards (close to the direction of the spraying end face 20) to effectively contact with the smoke flowing oppositely, and the adsorption and reaction probability of the medium on the harmful substances is further improved.

Based on the same concept of the spray head 101, the present embodiment further provides a blender, as shown in fig. 3 and 4, the blender may include a conveying pipe 103 and the spray head 101, the conveying pipe 103 may be used for conveying a medium to be sprayed to the spray head 101, the spray head 101 may be used for spraying the medium, and the spray head 101 may be the spray head 101 of any of the above embodiments.

As shown in fig. 3 and 4, the blender can be horizontally installed in the flue gas pipeline 200 or vertically installed in the tank 300, specifically, after the spray head 101 is prepared, the bent adapter tube 102 can be installed on the connecting section 10 of the spray head 101, and then the bent adapter tube 102 is connected with the delivery pipe 103 of the blender, so that the central axis of the spray head 101 can coincide with the central axis of the flue gas pipeline 200 or the tank 300, and the length of the delivery pipe 103 is generally larger than the radius of the flue gas pipeline 200 or the tank 300, so that the blender can be installed on the side wall of the flue gas pipeline 200 or the tank 300 through the delivery pipe 103.

In a specific embodiment of this embodiment, as shown in fig. 3 and 4, a mounting hole may be formed in a side surface of the flue gas pipe 200 or the tank 300 for conveying flue gas containing harmful substances, and an inspection door 201(301) that can be opened, closed and sealed is disposed at the mounting hole, the inspection door 201(301) is provided with a through hole through which the conveying pipe 103 of the blender can pass, and may be provided with an inner flange plate 202(302) and an outer flange plate 203(303), the inner flange plate 202(302) may be fixedly disposed with the inspection door 201(301), a central hole of the inner flange plate 202(302) overlaps with the through hole of the inspection door 201(301), and the outer flange plate 203(303) may be disposed independently. The blender and its delivery pipe 103 located inside the flue gas pipe 200 (or the tank 300) may be welded inside the central hole of the inner flange plate 202(302), and the blender may be installed in such a position that the showerhead 101 is located at the center inside the flue gas pipe 200 (or the tank 300). After the blender is installed on the inner flange plate 202(302), it may be further fixed by the outer flange plate 203(303) and fasteners (bolts, screws, etc.), and gaskets 204(304) may be provided between the inspection door 201(301) and the inner flange plate 202(302), and between the inner flange plate 202(302) and the outer flange plate 203(303) to ensure the sealing at the inspection door 201 (301).

The blender that this embodiment provided, the medium is radial when being spout from the injection terminal surface 20 of its shower nozzle 101 to effectively increased the spray area of medium, be particularly useful for in the desulfurization engineering spray powdery desulfurizer to the flue gas that contains sulfur dioxide, or be used for the preliminary coating in coke oven coal-charging flue gas dust removal process, and be used for spraying the volatile tar cigarette in the flue gas, pitch cigarette, steam etc. of dust absorption in the flue gas, also can extend and be used for spraying the liquid solution that diffusion area is big and even, such as liquid desulfurizer, spray pesticide, high temperature gas spray steam cooling, eliminate steam, and spray the colored area of different colours etc..

It is to be understood that the above embodiments are merely exemplary embodiments that are employed to illustrate the principles of the present application, and that the present application is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the application, and these changes and modifications are to be considered as the scope of the application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.

Claims (10)

1. A spray head of a blender, characterized by comprising a connecting section and a spraying section, wherein the connecting section is used for conveying a medium to be sprayed to the spraying section; the jetting section comprises a jetting end face, a plurality of first jetting ports are arranged on the jetting end face, and included angles between the jetting directions of the first jetting ports and the central axis of the jetting end face are increased along with the increase of the distance between the first jetting ports and the central point of the jetting end face, so that the medium is jetted out from the jetting end face in a radial mode.

2. The spray head of claim 1 wherein said spray end face comprises a curved surface, said first spray orifices each having a spray direction perpendicular to said curved surface.

3. The spray head of claim 2, wherein the curved surface comprises any one of a spherical surface, an elliptical surface, or an arcuate surface.

4. The showerhead of claim 1, wherein three adjacent first injection ports of the plurality of first injection ports that are not in the same direction are distributed in an equilateral triangle.

5. The spray head according to any one of claims 1 to 4, further comprising a diverging section having a tubular shape, wherein both ends of the diverging section are connected to the connecting section and the spraying section, respectively, and the diameter of the diverging section gradually increases from one end near the connecting section to one end near the spraying section.

6. The spray head of claim 5 wherein the diverging section comprises a tapered tube having a taper angle greater than or equal to 45 ° and less than or equal to 65 °.

7. The spray head of claim 6 wherein said spray tip surface is hemispherical, said hemispherical open end being contiguous with said conical tube, and said hemispherical diameter being equal to the diameter of said conical tube at the end adjacent said spray section.

8. The spray head according to claim 5, wherein the divergent section is provided with a plurality of second spray ports for spraying the medium.

9. The spray head of claim 8 wherein the second spray ports spray in a direction that is less than 90 ° from a central axis of the spray end face.

10. A blender comprising a conveying pipe for conveying a medium to be sprinkled to a spray head for spraying the medium, and a spray head for spraying the medium, characterized in that the spray head is a spray head according to any one of claims 1-9.

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