CN214008137U

CN214008137U - Digital air valve and granular coal gas screening machine

Info

Publication number: CN214008137U
Application number: CN202022565696.6U
Authority: CN
Inventors: 李太友; 王天威; 章晓威
Original assignee: Tianjin Meiteng Technology Co Ltd
Current assignee: Tianjin Meiteng Technology Co Ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-08-20
Anticipated expiration: 2030-11-09

Abstract

The utility model discloses a digital air valve and pellet gas sieve separator relates to coal and selects separately technical field. This digital blast gate includes: the shell is provided with an air inlet and an air outlet; the air outlet pipe is fixedly connected to the air outlet; the rotating shaft is rotatably arranged on the shell by 360 degrees; the rotor is arranged in the shell, an air inlet channel is arranged in the rotor, an inlet of the air inlet channel is communicated with the air inlet, the rotor is fixedly connected with the rotating shaft, and at least one air outlet structure which can be communicated with the air outlet is arranged on the rotor. In the rotor rotation process, an air quantity fluctuation change diagram is formed by communicating and disconnecting the air outlet structure and the air outlet, so that the air quantity change adjustment in a period is realized in a matched mode, the sorting precision of the particle coal gas screening machine is matched, and the actual use requirement is met.

Description

Digital air valve and granular coal gas screening machine

Technical Field

The utility model relates to a coal selects separately technical field, concretely relates to digital air valve and grain gas screen (ing) machine.

Background

The coal gas screening machine as a coal sorting device needs to supply constantly-changing air volume to meet the air volume requirements in different sorting stages, and different air volume strategies need to be adjusted according to different coal qualities. At present, an air valve used for generating variable air volume on other particle gas screening machines is a pulse air valve, and the air valve is a butterfly valve with a valve body capable of rotating 360 degrees, and the periodic fluctuation of the air volume is realized by adjusting the rotating speed through a variable frequency motor. The change curve of the air quantity of the pulse air formed by the air valve along with time is similar to a sine curve, and the fluctuation period of the sine curve is only changed even if the rotating speed is adjusted by the variable frequency motor, so that the curve type cannot be changed. In actual use, air quantity fluctuation change is sometimes different from the existing sinusoidal air quantity fluctuation type according to different sorting precision of the granular coal gas screening machine.

Based on this, a need exists for a digital air valve and a granular coal gas screening machine, which are used to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a digit blast gate and grain gas sieve separator can provide the amount of wind change map that is different from current sinusoidal form to suit with the sorting precision of grain gas sieve separator, satisfy the in-service use demand.

To achieve the purpose, the utility model adopts the following technical proposal:

a digital air valve comprising:

the shell is provided with an air inlet and an air outlet;

the air outlet pipe is fixedly connected to the air outlet;

the rotating shaft is rotatably arranged on the shell by 360 degrees;

the rotor is arranged in the shell, an air inlet channel is arranged in the rotor, an inlet of the air inlet channel is communicated with the air inlet, the rotor is fixedly connected with the rotating shaft, and at least one air outlet structure which can be correspondingly communicated with the air outlet is arranged on the rotor.

Optionally, the air outlet structure includes a first air outlet, the first air outlet is arranged along the circumferential extension of the rotor, and the length of the first air outlet is equal to half of the circumference of the rotor.

Optionally, the air outlet structure further comprises a second air outlet, the second air outlet is arranged along the circumferential extension of the rotor, and the length of the second air outlet is smaller than half of the circumference of the rotor.

Optionally, the air-out structure still includes the third exhaust vent, the third exhaust vent is equipped with a plurality ofly, every the third exhaust vent follows the axial extension of rotor sets up, and is a plurality of the third exhaust vent follows the circumference interval arrangement of rotor.

Optionally, the air outlet structure is rectangular.

Optionally, the air outlet pipe is a reducer pipe, and the inner diameter of one end of the air outlet pipe connected with the air outlet is larger than the inner diameter of the air outlet pipe far away from the air outlet end.

Optionally, one end of the air outlet pipe connected with the air outlet is rectangular, and the other end far away from the air outlet is circular.

Optionally, the housing includes a housing body and a base which are fixedly connected, the housing body is connected with the rotating shaft, the air outlet is arranged on the housing body, and the base is provided with the air inlet.

Optionally, the digital air valve further comprises a coupler, and the rotating shaft is rotatably mounted on the shell body through the coupler.

The utility model also provides a particle gas sieve separator, include as above digital blast gate.

The utility model has the advantages that:

the utility model provides a pair of digit blast gate and grain coal gas sieve machine through establishing air intake and air outlet on the shell, goes out tuber pipe fixed connection in air outlet department, and 360 rotation ground of pivot are installed on the shell, and in the shell was located to the rotor, establish inlet air channel in the rotor, inlet air channel's entry and air intake intercommunication, pivot and rotor fixed connection are equipped with at least one air-out structure that can communicate with the air outlet on the rotor. The rotor is driven to rotate by rotating the rotating shaft by 360 degrees, and in each period of the rotation of the rotor, the air outlet structure is communicated with and disconnected from the air outlet to form an air volume fluctuation change diagram so as to realize the air volume change adjustment in the period in a matching manner, provide an air volume change diagram different from the existing sine curve form, adapt to the sorting precision of the granular coal gas screening machine and meet the actual use requirements.

Drawings

Fig. 1 is a first schematic structural diagram of a digital air valve according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram ii of a digital air valve provided in the first embodiment of the present invention;

fig. 3 is a schematic view of a partially expanded structure of a rotor of a digital air valve along a bus according to an embodiment of the present invention;

fig. 4 is a shape diagram of the change of the air volume of the first air outlet according to the first embodiment of the present invention;

fig. 5 is a schematic view of a partially expanded structure of a rotor of the digital air valve provided by the second embodiment of the present invention along a bus;

fig. 6 is a shape diagram of the change of the air volume of the second air outlet provided in the second embodiment of the present invention;

fig. 7 is a schematic view of a partially expanded structure of a rotor of a digital air valve provided by a third embodiment of the present invention along a bus;

fig. 8 is a shape diagram of the change of the air volume of the third air outlet according to the third embodiment of the present invention.

In the figure:

1. a housing; 11. a housing body; 111. clamping the bulges; 112. an air outlet; 12. a base; 121. an air inlet; 2. an air outlet pipe; 3. a rotating shaft; 4. a coupling; 5. a rotor; 51. a first air outlet; 52. a second air outlet hole; 53. and a third air outlet.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Example one

As shown in fig. 1 and fig. 2, the present embodiment discloses a digital air valve, which includes a housing 1, an air outlet pipe 2, a rotating shaft 3 and a rotor 5, wherein the housing 1 is communicated with the air outlet pipe 2, and the rotating shaft 3 and the rotor 5 are arranged in the housing 1. Specifically, the housing 1 is provided with an intake port 121 and an outlet port 112 for air to flow in and out. The air outlet pipe 2 is fixedly connected to the air outlet 112 for air to flow out. The rotating shaft 3360 degree is rotatably installed on the housing 1, and one end of the rotating shaft 3 penetrates through the housing 1 and is inserted into the housing 1. Rotor 5 locates in shell 1, establishes inlet air channel in the rotor 5, and inlet air channel's entry and air intake 121 intercommunication, rotor 5 and pivot 3 fixed connection are equipped with at least one air-out structure that can communicate with air-out pipe 2 on the rotor 5.

The rotor 5 rotates in-process, and at least one in first exhaust vent 51 and the second exhaust vent 52 communicates with tuber pipe 2.

The utility model discloses a 360 rotations of pivot 3 drive rotor 5 and rotate, can form a plurality of amount of wind fluctuation graphs in 5 pivoted each periods of rotor, and the cooperation of a plurality of amount of wind fluctuation graphs is realized to the regulation of the change of amount of wind in each period, compares in the change of amount of wind graph of current single curvilinear form, the utility model discloses can improve the sorting precision of a coal gas sieve machine, the suitability is strong.

Alternatively, as shown in fig. 1 and fig. 2, the housing 1 includes a housing body 11 and a base 12 fixedly connected to each other, the air outlet 112 is disposed on the housing body 11, the base 12 is provided with an air inlet 121, and the base 12 is connected to an air inlet duct. Illustratively, the housing body 11 is a hollow cylindrical shell, and the sidewall thereof is provided with an air outlet 112 and the top thereof is provided with a through hole. The housing body 11 is further provided with a clamping protrusion 111.

Furthermore, the end of the air outlet pipe 2 connected to the air outlet 112 is rectangular, and the end far away from the air outlet 112 is circular. That is, the intersecting surface (the shape of the air outlet 112) between the air outlet pipe 2 and the housing body 11 is rectangular, so as to facilitate the subsequent calculation work. The end of the air outlet pipe 2 far away from the air outlet 112 is round so as to be connected with an air supply pipeline. The air outlet pipe 2 is a reducer pipe, and the inner diameter of the end of the air outlet pipe 2 connected with the air outlet 112 is larger than the inner diameter of the end of the air outlet pipe 2 far away from the air outlet 112, so that the intersecting surface of the air outlet pipe 2 far away from the air outlet 112 and the shell 1 is rectangular under the condition that the inner diameter of the end of the air outlet pipe 2 far away from the air outlet 112 is the same as the inner diameter of the air inlet 121. The rotating shaft 3 is inserted into the housing body 11 through the through hole. As an exemplary scheme, the digital air valve further comprises a coupler 4, the coupler 4 is clamped on the clamping protrusion 111 to be fixed, and the rotating shaft 3 is rotatably mounted on the housing body 11 through the coupler 4.

The rotor 5 is hollow and cylindrical, and is provided in the housing body 11 to protect the rotor 5. The top of the rotor 5 is fixedly connected with one end of the rotating shaft 3 penetrating through the through hole, so that the rotor 5 can rotate 360 degrees along with the rotating shaft 3, and the air volume is periodically adjusted.

The air outlet structure is rectangular. As shown in fig. 1-3, the air outlet structure includes a first air outlet 51, the first air outlet 51 is a rectangular hole, and extends along the circumferential direction of the rotor 5, and the length of the first air outlet 51 is equal to half of the circumferential length of the rotor 5, and a shape diagram of the change of the air volume formed when the first air outlet rotates along with the rotor 5 is shown in fig. 4, so as to meet the actual requirement. In other embodiments, the length and shape of the first air outlet 51 can be set according to the requirement, and is not limited to this embodiment.

Because the one end that goes out tuber pipe 2 and connect air outlet 112 is the rectangle, and the face that intersects mutually of tuber pipe 2 and shell body 11 is the rectangle promptly, then first exhaust vent 51 is the straight line with the tangent line at air outlet 112 border, compares in the tangent line for curved form, the utility model discloses a first exhaust vent 51 changes sooner at rotor 5 pivoted in-process draft area, has realized quick the regulation to the amount of wind undulant. The rapid change of the wind speed is controlled by the communication area of the intersecting surface and the rectangular hole, so that the aims of rapid loosening and slow descending of the material layer can be fulfilled.

The embodiment of the utility model provides a particle gas sieve machine is still provided, include as above digital blast gate, realize the accurate sorting to the coal.

To sum up, the utility model discloses a 360 rotations of pivot 3 drive rotor 5 and rotate, in each period of rotor 5 pivoted, through intercommunication and the disconnection of air-out structure and air outlet 112, form the undulant change picture of amount of wind to the amount of wind change in the cooperation realization period is adjusted, provides the amount of wind change picture different from current sinusoidal form, in order to satisfy the in-service use demand.

Example two

In this embodiment, the same portions as those in the first embodiment are given the same reference numerals, and the same description is omitted.

As shown in fig. 5 and fig. 6, compared to the first embodiment, the digital air valve provided in the present embodiment has the difference that the first air outlet 51 is eliminated, the air outlet structure includes a second air outlet 52, the second air outlet 52 is a rectangular hole, the second air outlet 52 extends along the circumferential direction of the rotor 5, and the length of the second air outlet 52 is smaller than one half of the circumferential length of the rotor 5. The shape diagram of the air volume change formed when the second air outlet 52 rotates along with the rotor 5 is shown in fig. 6, and the second air outlet 52 is connected with and disconnected from the air outlet 112 to form intermittent air supply, so as to meet the actual use requirement. In other embodiments, the length and shape of the second air outlet 52 can be set according to the requirement, and is not limited to this embodiment.

EXAMPLE III

As shown in fig. 7 and 8, compared to the first embodiment, the digital air valve provided in this embodiment has the difference that the first air outlet 51 is removed, the air outlet structure includes a plurality of third air outlets 53, the third air outlets 53 are rectangular holes and extend along the height direction of the rotor 5, the length of the third air outlet 53 is less than half of the height of the rotor 5, and the plurality of third air outlets 53 are vertically arranged in parallel with the rotation axis direction of the rotor. The shape diagram of the air volume change formed when the third air outlet 53 rotates along with the rotor 5 is shown in fig. 8, and in this embodiment, the third air outlet 53 is connected to and disconnected from the air outlet 112 to form a stepped air supply, so as to meet the actual use requirement. In other embodiments, the length and shape of the third air outlet 53 can be set according to the requirement, and the present embodiment is not limited thereto.

It can be understood that, in other embodiments, can set up a plurality ofly as required with the air-out structure, a plurality of air-out structure cooperations realize the regulation to the amount of wind change in each cycle, not with the setting of this embodiment to the limit, technical scheme that technical personnel in this field can think of according to the utility model discloses a design concept all is in the utility model discloses a protection within range.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A digital air valve, comprising:

the shell (1) is provided with an air inlet (121) and an air outlet (112);

the air outlet pipe (2) is fixedly connected to the air outlet (112);

the rotating shaft (3) is rotatably arranged on the shell (1) in 360 degrees;

rotor (5), locate in shell (1), establish inlet air channel in rotor (5), inlet air channel's entry with air intake (121) intercommunication, rotor (5) with pivot (3) fixed connection, be equipped with on rotor (5) can with at least one air-out structure of air outlet (112) intercommunication.

2. The digital air valve according to claim 1, wherein the air outlet structure comprises a first air outlet hole (51), the first air outlet hole (51) is arranged along the circumferential extension of the rotor (5), and the length of the first air outlet hole (51) is equal to half of the circumferential length of the rotor (5).

3. The digital air valve according to claim 1, wherein the air outlet structure comprises a second air outlet hole (52), the second air outlet hole (52) is arranged along the circumferential extension of the rotor (5), and the length of the second air outlet hole (52) is less than one half of the circumferential length of the rotor (5).

4. The digital air valve according to claim 1, wherein the air outlet structure comprises a plurality of third air outlet holes (53), each third air outlet hole (53) is arranged along an axial extension of the rotor (5), and the plurality of third air outlet holes (53) are arranged in parallel along an axial interval of the rotor (5).

5. The digital air valve according to claim 1, wherein the air outlet structure is rectangular.

6. The digital air valve according to any one of claims 1 to 5, wherein the air outlet pipe (2) is a reducer pipe, and the inner diameter of the reducer pipe connected with the end of the air outlet (112) is larger than the inner diameter of the air outlet pipe (2) far away from the end of the air outlet (112).

7. The digital air valve according to claim 6, wherein one end of the air outlet pipe (2) connected with the air outlet (112) is rectangular, and the other end far away from the air outlet (112) is circular.

8. The digital air damper according to any one of claims 1 to 5, wherein the housing (1) comprises a housing body (11) and a base (12) which are fixedly connected, the housing body (11) is connected with the rotating shaft (3), the air outlet (112) is arranged on the housing body (11), and the base (12) is provided with the air inlet (121).

9. The digital air valve according to claim 8, further comprising a coupler (4), wherein the rotary shaft (3) is rotatably mounted on the housing body (11) through the coupler (4).

10. A particle gas screen, comprising a digital air valve according to any of claims 1 to 9.