Blowing gas circuit structure of valve box

Abstract

The utility model relates to the technical field of sorting equipment, in particular to a valve box blowing gas circuit structure. The valve box blowing gas circuit structure comprises a nozzle body and a plurality of hoses, a plurality of gas spraying channels are arranged in the nozzle body, and the gas spraying channels are connected with the hoses in a one-to-one correspondence mode; the air injection channel comprises an injection part and a guide part which are communicated, an air outlet is formed in one end of the injection part, the other end of the injection part is communicated with the guide part, the guide part is horizontally arranged, and an air inlet is formed in the bottom of the guide part; the upper ends of the hoses are connected to the air inlets in a one-to-one correspondence mode. According to the structure, on one hand, the hose can be vertically mounted, so that the impact force of airflow on the hose is reduced, the problem that the hose is easy to loosen and even fall off at the joint is solved, and the use stability of the valve box blowing gas path structure is further improved; and on the other hand, the horizontally-arranged guide part can prevent dust from entering from the nozzle and falling into the air inlet valve when air is not sprayed, so that the performance of the air inlet valve is not influenced.

Description

Technical Field

[0001] This utility model relates to the field of sorting equipment technology, and in particular to a valve box jetting air path structure. Background Technology

[0002] The valve box is a core component of coal dry separators, mineral dry separators, and color sorters, and is widely used in coal and mineral processing. These separators use air jets to precisely control the movement trajectories of different materials, thereby achieving effective material separation. The performance of the valve box directly determines the separation performance of the equipment. In current standard configurations, the valve box mainly consists of three parts: a solenoid valve assembly, a jetting air path, and a solenoid valve control system. The jetting air path system typically includes three key components: nozzles, transition pipes, and an inlet valve plate. During operation, gas flows through the inlet valve plate and transition pipes and is ejected from the nozzles towards the material, achieving material separation.

[0003] There are two main structural forms of conventional jet air circuits: the perforated metal structure and the hose connection structure. The perforated metal structure involves drilling holes in a metal block to form the air passage. The hose connection type also uses nozzles and inlet valves machined from perforated metal parts, but a hose connects the nozzle and inlet valve.

[0004] Hose connections are widely used in blow-jet air circuits due to their low cost and simple processing. However, with hose connections, the air passages within the nozzle are typically angled, resulting in a bent hose connecting the nozzle and the inlet valve. This bent hose is prone to swaying under airflow, causing it to loosen or even detach at the joint, leading to poor stability and making it unsuitable for high-pressure blowing or blowing very large or heavy materials. Utility Model Content

[0005] The purpose of this utility model is to provide a valve box jetting air circuit structure to solve the technical problems of existing valve box jetting air circuit structures that use hose connections, such as hoses being prone to loosening or even falling off at the joints, poor stability in use, and inability to use high-pressure jetting.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A valve box injection air path structure includes a nozzle body and several hoses, wherein:

[0008] The nozzle body is provided with several air jet channels, and each air jet channel is connected to the hose in a corresponding manner.

[0009] The jet channel includes a jet section and a guide section that are connected to each other. One end of the jet section is provided with an air outlet, and the other end of the jet section is connected to the guide section. The guide section is horizontally arranged, and the bottom of the guide section is provided with an air inlet.

[0010] The hoses are arranged vertically and their upper ends are connected to the air inlets one by one.

[0011] Furthermore, the spray section is inclined from bottom to top, the upper end of the spray section is provided with an air outlet, and the lower end of the spray section is connected to the guide section;

[0012] The top of one end of the guide portion is connected to the injection portion, and the bottom of the other end of the guide portion is provided with the air inlet.

[0013] Furthermore, the nozzle body includes an upper nozzle component and a lower nozzle component joined together, the spraying part is disposed through the upper nozzle component, and the guide part is disposed between the upper nozzle component and the lower nozzle component.

[0014] Furthermore, the bottom of the upper nozzle component is provided with a plurality of first grooves, the lower nozzle component covers the opening of the first grooves, and the lower nozzle component and the first grooves form the guide portion;

[0015] And / or, the top of the lower nozzle component is provided with a plurality of second grooves, the upper nozzle component covers the opening of the second grooves, and the upper nozzle component and the second grooves form the guide portion.

[0016] Furthermore, the upper nozzle component includes a horizontal plate and an inclined plate, wherein:

[0017] The horizontal plate is horizontally arranged and connected to the lower nozzle component;

[0018] The inclined plate is inclined from bottom to top, the lower end of the inclined plate is connected to the horizontal plate, and the spraying part is disposed through the inclined plate.

[0019] Furthermore, the number of guide portions is multiple, and the multiple guide portions include a first guide portion and a second guide portion, wherein the length of the first guide portion is greater than the length of the second guide portion;

[0020] Along the length of the nozzle body, the first guide portion and the second guide portion are arranged alternately.

[0021] Furthermore, the number of jet channels is multiple, and the multiple jet channels are divided into two groups of jet channel groups arranged at intervals along the width direction of the nozzle body. Each group of jet channel groups includes multiple jet channels arranged at intervals along the length direction of the nozzle body.

[0022] The volumes of the jet channels in the two groups of jet channels are different.

[0023] Furthermore, it also includes an intake valve assembly having a plurality of valve outlets, each valve outlet being connected to a corresponding lower end of the hose;

[0024] The intake valve assembly includes a first intake valve structure and a second intake valve structure, wherein the first intake valve structure is connected to one of the jet channel groups and the second intake valve structure is connected to the other jet channel group.

[0025] Furthermore, it also includes a supplementary nozzle, which is connected to the top of the nozzle body;

[0026] The supplementary nozzle has several supplementary air channels running through it, and each supplementary air channel is connected to the air outlet of the spray section.

[0027] Furthermore, the cross-sectional area of ​​the supplementary airway decreases from the inlet to the outlet of the supplementary airway.

[0028] The beneficial effects of this utility model are:

[0029] The valve box blowing air circuit structure provided by this utility model includes a nozzle body and several hoses, wherein: the nozzle body is provided with several air jet channels, and the air jet channels are connected to the hoses one by one; the air jet channel includes a connected spraying part and a guide part, one end of the spraying part is provided with an air outlet, the other end of the spraying part is connected to the guide part, the guide part is horizontally set, and the bottom of the guide part is provided with an air inlet; the hoses are vertically set and the upper ends of the hoses are connected to the air inlets one by one.

[0030] In the valve box jetting air path structure provided in this embodiment, the jetting channel includes a horizontally arranged guide portion, and an air inlet is provided at the bottom of the guide portion. This structure facilitates the connection of the hose, allowing the hose to be installed vertically, thereby enabling gas to easily enter the jetting channel along the hose. This reduces the impact force of the airflow on the hose and alleviates the problem of the hose easily loosening or even falling off at the joint, thus improving the stability of the valve box jetting air path structure and making it applicable to high-pressure jetting applications. On the other hand, the horizontally arranged guide portion also prevents dust from entering from the nozzle when not jetting and falling into the air inlet valve, affecting the performance of the air inlet valve. Attached Figure Description

[0031] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 A three-dimensional schematic diagram of the valve box injection air path structure provided in this embodiment of the utility model;

[0033] Figure 2 A three-dimensional schematic diagram of the valve box jet air path structure provided in this embodiment of the utility model after removing part of the hose;

[0034] Figure 3 This is a cross-sectional schematic diagram of the nozzle body provided in an embodiment of the present invention.

[0035] icon:

[0036] 1- Nozzle body; 11- Air jet channel; 111- Injection section; 112- Guide section; 12- Upper nozzle component; 121- Horizontal plate; 122- Inclined plate; 13- Lower nozzle component;

[0037] 2-Hose;

[0038] 3-Intake valve assembly; 31-First intake valve structure; 32-Second intake valve structure;

[0039] 4-Supplemental nozzle;

[0040] 5- Quick-connect connector. Detailed Implementation

[0041] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. 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.

[0042] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] It should be noted that in the description of this utility model, the terms "connection" and "installation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or a connection through an intermediate medium; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] This utility model embodiment provides a valve box injection air path structure, referring to... Figures 1 to 3 The valve box blowing air path structure includes a nozzle body 1 and several hoses 2, wherein:

[0045] The nozzle body 1 is provided with several jet channels 11, and the jet channels 11 are connected to the hose 2 one by one;

[0046] The jet passage 11 includes a jet section 111 and a guide section 112 that are connected to each other. One end of the jet section 111 is provided with an air outlet, and the other end of the jet section 111 is connected to the guide section 112. The guide section 112 is horizontally arranged, and the bottom of the guide section 112 is provided with an air inlet.

[0047] Hose 2 is set vertically and its upper end is connected to the air inlet one by one.

[0048] In the valve box blowing air path structure provided in this embodiment, the jet channel 11 includes a horizontally arranged guide portion 112, and the bottom of the guide portion 112 is provided with an air inlet. This structure facilitates the connection of the hose 2, allowing the hose 2 to be installed vertically, thereby enabling the gas to smoothly enter the jet channel 11 along the hose 2, reducing the impact force of the airflow on the hose 2, alleviating the problem of the hose easily loosening or even falling off at the joint, and thus improving the stability of the valve box blowing air path structure, making the valve box blowing air path structure applicable to high-pressure blowing applications; on the other hand, the horizontally arranged guide portion 112 can also prevent dust from entering from the nozzle when not spraying and falling into the air intake valve, affecting the performance of the air intake valve.

[0049] It should be noted that there can be one or more jet channels 11 and hoses 2; when there are multiple jet channels 11, the multiple jet channels 11 can be arranged at intervals along the length direction of the nozzle body 1, or they can be arranged in an array along the length and width directions of the nozzle body 1. The number and arrangement of jet channels 11 and hoses 2 can be adjusted according to the usage requirements.

[0050] Continue to refer to Figure 1 and Figure 2 The valve box blowing air circuit structure also includes an air inlet valve assembly 3, which has several valve outlets, and the valve outlets are connected to the lower end of the hose 2 one by one.

[0051] In this embodiment, the upper end of the intake valve assembly 3 has several valve outlets, and the lower end of the intake valve assembly 3 has several valve inlets. The intake valve assembly 3 adopts a bottom intake and top exhaust structure, which makes the installation of the air pipe more convenient.

[0052] Optionally, the intake valve assembly 3 can be a combination of one or more integrated valves, each with multiple valve outlets; alternatively, the intake valve assembly 3 can be a combination of one or more ordinary solenoid valves, which typically have only one valve outlet. The valve box injection air path structure provided in this embodiment is compatible with various types of intake valves. During installation, simply connect the lower end of the hose 2 to the valve outlet of the intake valve. This application does not limit the valve type of the intake valve assembly 3.

[0053] To facilitate the installation of the hose 2, a quick-connect fitting 5 is provided at the air inlet of each guide section 112 and a quick-connect fitting 5 is provided at the outlet of each valve. The two ends of the hose 2 are respectively inserted into the corresponding quick-connect fittings 5 ​​to achieve a quick connection between the jet channel 11 and the air intake valve assembly 3.

[0054] Reference Figure 3 The spray section 111 is inclined from bottom to top, the upper end of the spray section 111 is provided with an air outlet, and the lower end of the spray section 111 is connected to the guide section 112.

[0055] One end of the guide section 112 is connected to the top of the injection section 111, and the other end of the guide section 112 is provided with an air inlet at the bottom.

[0056] The above configuration creates a meandering jet air passage within the jet channel 11. This meandering jet air passage guides the airflow to the correct position and direction, and also prevents dust from entering the nozzle from the nozzle when not in use, thus preventing it from falling into the solenoid valve and affecting its performance.

[0057] Continue to refer to Figure 3The nozzle body 1 includes an upper nozzle component 12 and a lower nozzle component 13 that are spliced ​​together. The spraying part 111 is disposed through the upper nozzle component 12, and the guide part 112 is disposed between the upper nozzle component 12 and the lower nozzle component 13.

[0058] In this embodiment, the nozzle body 1 is made of metal and includes an upper nozzle component 12 and a lower nozzle component 13 that are spliced ​​together. This structure increases the flexibility of processing and assembly of the nozzle body 1 and reduces the processing difficulty of the jet channel 11.

[0059] Figure 3 In the illustrated embodiment, the upper nozzle component 12 includes a horizontal plate 121 and an inclined plate 122, wherein:

[0060] The horizontal plate 121 is horizontally positioned and connected to the lower nozzle component 13;

[0061] The inclined plate 122 is inclined from bottom to top, and the lower end of the inclined plate 122 is connected to the horizontal plate 121. The spraying part 111 is disposed through the inclined plate 122.

[0062] In other embodiments, the upper nozzle component 12 may also be a rectangular metal block structure or other irregular structure.

[0063] Compared to the upper nozzle component 12 which uses a rectangular metal block structure, the upper nozzle component 12 provided in this embodiment can reduce the amount of material used and reduce processing costs.

[0064] Based on the above structure, the lower nozzle component 13 is a horizontally arranged plate structure. The edges of the lower nozzle component 13 and the horizontal plate 121 are respectively provided with through holes for fasteners to pass through. The lower nozzle component 13 and the horizontal plate 121 are detachably fixedly connected by fasteners such as screws. In order to improve the sealing between the lower nozzle component 13 and the horizontal plate 121, a sealing gasket can also be provided between them.

[0065] As an optional embodiment, the bottom of the upper nozzle component 12 is provided with a plurality of first grooves, and the lower nozzle component 13 covers the opening of the first grooves, and the lower nozzle component 13 and the first grooves form a guide portion 112;

[0066] And / or, the top of the lower nozzle component 13 is provided with a plurality of second grooves, the upper nozzle component 12 covers the opening of the second grooves, and the upper nozzle component 12 and the second grooves form a guide portion 112.

[0067] Taking the structure of the nozzle component 13 with several second grooves on its top as an example, such as... Figure 3As shown, the upper end face of the lower nozzle component 13 is machined with several second grooves, and an air inlet is provided at the bottom of the second groove. After the upper nozzle component 12 and the lower nozzle component 13 are assembled, the horizontal plate 121 covers the opening of the second groove, thereby forming a guide portion 112 at the position of the second groove. Conventional nozzle air passages are formed by drilling metal parts, while the guide portion 112 in this embodiment only needs to be machined with grooves, which is less difficult to process.

[0068] As an optional embodiment, the number of guide portions 112 is multiple, and the multiple guide portions 112 include a first guide portion and a second guide portion, wherein the length of the first guide portion is greater than the length of the second guide portion;

[0069] Along the length of the nozzle body 1 (that is, along the length of the lower nozzle component 13), the first guide portion and the second guide portion are arranged alternately.

[0070] It should be noted that the lengths of the first guide section and the second guide section can be flexibly adjusted according to the installation position of the intake valve assembly 3, so that the air inlet at the bottom of the guide section 112 is directly above the corresponding valve outlet, thereby allowing the hose 2 to be installed vertically. Furthermore, because the first and second guide sections are arranged alternately, the air inlets of adjacent first and second guide sections are staggered, facilitating the installation of the quick-connect fittings 5, avoiding interference between adjacent quick-connect fittings 5, and allowing the jet channels 11 to be arranged more tightly.

[0071] Continue to refer to Figure 3 The number of jet channels 11 is multiple, and the multiple jet channels 11 are divided into two groups of jet channels arranged at intervals along the width direction of the nozzle body. Each group of jet channels includes multiple jet channels 11 arranged at intervals along the length direction of the nozzle body.

[0072] The volumes of jet passage 11 in the two jet passage groups are different.

[0073] Optionally, along the extension direction of the jet channel 11, the cross-sectional outer contour of the jet channel 11 at different positions can be the same or different; the cross-sectional outer contour of the jet channel 11 can be one or more of a circle, a polygon, or an irregular shape.

[0074] In this embodiment, one group of jet passages ( Figure 3 The cross-sectional area of ​​jet channel 11 in the jet channel group on the right side is larger than that of another jet channel group ( Figure 3 The cross-sectional area of ​​the jet passage 11 in the jet passage group on the left side of the middle jet passage group is such that the jet passage 11 in the two jet passage groups have different volumes.

[0075] Based on the above structure, the intake valve assembly 3 includes a first intake valve structure 31 and a second intake valve structure 32. The first intake valve structure 31 is connected to one of the jet channel groups, and the second intake valve structure 32 is connected to the other jet channel group.

[0076] In the above structure, since the volumes of the jet channels 11 in the two jet channel groups are different, the jet channel group with the smaller volume of jet channel 11 can be used to spray lighter materials, while the jet channel group with the larger volume of jet channel 11 can be used to spray heavier materials. Accordingly, the first air inlet valve structure 31 and the second air inlet valve structure 32 are two different types of air inlet valves with different operating parameters, so as to more accurately sort materials of different weight ranges.

[0077] Continue to refer to Figure 2 The valve box blowing air path structure also includes a supplementary nozzle 4, which is connected to the nozzle body 1;

[0078] The supplementary nozzle 4 has several supplementary air passages that are connected to the air outlet of the spray section 111.

[0079] In this embodiment, the supplementary nozzle 4 is a long strip block structure, and the supplementary nozzle 4 is fixedly installed on the upper end face of the inclined plate 122 by fasteners such as screws. The supplementary nozzle 4 is provided with two sets of supplementary air passages arranged at intervals along the width direction of the supplementary nozzle 4. Each set of supplementary air passages includes multiple supplementary air passages arranged at intervals along the length direction of the supplementary nozzle 4; the supplementary air passages in the two sets of supplementary air passages have different cross-sectional areas.

[0080] Based on the above structure, the lower end of the supplementary air passage has an inlet, which is connected to the air outlet of the injection section 111; the upper end of the supplementary air passage has an outlet, and the cross-sectional area of ​​the supplementary air passage decreases from the inlet to the outlet.

[0081] The addition of nozzle 4 extends the airflow path in the blowing air path structure, thus allowing for more precise airflow guidance. Furthermore, the constricted structure of the supplementary air passage increases the blowing air pressure, which is beneficial for material separation.

[0082] In other embodiments, the supplementary nozzle 4 may be omitted, and a constriction structure may be machined at the upper end of the spray section 111.

[0083] 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 therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A valve box injection air path structure, characterized in that, It includes a nozzle body (1) and several hoses (2), wherein: The nozzle body (1) is provided with a plurality of jet channels (11), and the jet channels (11) are connected to the hose (2) one by one; The jet channel (11) includes a jet section (111) and a guide section (112) connected together. One end of the jet section (111) is provided with an air outlet, and the other end of the jet section (111) is connected to the guide section (112). The guide section (112) is horizontally arranged, and the bottom of the guide section (112) is provided with an air inlet. The hose (2) is set vertically and the upper end of the hose (2) is connected to the air inlet one by one.

2. The valve box injection air path structure according to claim 1, characterized in that, The spray section (111) is inclined from bottom to top, the upper end of the spray section (111) is provided with an air outlet, and the lower end of the spray section (111) is connected to the guide section (112); The top of one end of the guide portion (112) is connected to the injection portion (111), and the bottom of the other end of the guide portion (112) is provided with the air inlet.

3. The valve box injection air path structure according to claim 1, characterized in that, The nozzle body (1) includes an upper nozzle component (12) and a lower nozzle component (13) joined together. The spraying part (111) is disposed through the upper nozzle component (12), and the guide part (112) is disposed between the upper nozzle component (12) and the lower nozzle component (13).

4. The valve box injection air path structure according to claim 3, characterized in that, The bottom of the upper nozzle component (12) is provided with a plurality of first grooves, and the lower nozzle component (13) covers the opening of the first grooves. The lower nozzle component (13) and the first grooves form the guide portion (112). And / or, the top of the lower nozzle member (13) is provided with a plurality of second grooves, the upper nozzle member (12) covers the opening of the second grooves, and the upper nozzle member (12) and the second grooves form the guide portion (112).

5. The valve box injection air path structure according to claim 3, characterized in that, The upper nozzle component (12) includes a horizontal plate (121) and an inclined plate (122), wherein: The horizontal plate (121) is horizontally arranged and connected to the lower nozzle component (13); The inclined plate (122) is inclined from bottom to top, and the lower end of the inclined plate (122) is connected to the horizontal plate (121). The spraying part (111) is disposed through the inclined plate (122).

6. The valve box injection air path structure according to claim 1, characterized in that, The number of guide portions (112) is multiple, and the multiple guide portions (112) include a first guide portion and a second guide portion, wherein the length of the first guide portion is greater than the length of the second guide portion; Along the length of the nozzle body (1), the first guide portion and the second guide portion are arranged alternately.

7. The valve box injection air path structure according to claim 1, characterized in that, The number of jet channels (11) is multiple, and the multiple jet channels (11) are divided into two groups of jet channel groups arranged at intervals along the width direction of the nozzle body. Each group of jet channels includes multiple jet channels (11) arranged at intervals along the length direction of the nozzle body. The volumes of the jet passages (11) in the two groups of jet passages are different.

8. The valve box injection air path structure according to claim 7, characterized in that, It also includes an intake valve assembly (3), which has a plurality of valve outlets, each of which is connected to the lower end of the hose (2). The intake valve assembly (3) includes a first intake valve structure (31) and a second intake valve structure (32), wherein the first intake valve structure (31) is connected to one of the jet channel groups and the second intake valve structure (32) is connected to the other jet channel group.

9. The valve box injection air path structure according to any one of claims 1 to 8, characterized in that, It also includes a supplementary nozzle (4), which is connected to the nozzle body (1); The supplementary nozzle (4) has several supplementary air passages that are connected to the air outlet of the spray section (111).

10. The valve box injection air path structure according to claim 9, characterized in that, The cross-sectional area of ​​the supplementary airway decreases from the inlet to the outlet.

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