Side air supplement valve device of powder concentrator

Abstract

The utility model relates to the technical field of powder selecting machines, and discloses a side air supplementing valve device of a powder selecting machine, which comprises a powder selecting machine main body, two air supplementing channels are arranged at the side end of the powder selecting machine main body in a non-adjacent manner, the air supplementing channels and the side end of the powder selecting machine main body are arranged in a tangent manner, and an air supplementing valve is arranged at the end, far away from the powder selecting machine main body, of each air supplementing channel. An opening and closing plate assembly and an overheating adjusting assembly connected with the opening and closing plate assembly are installed in the air supplementing channel, the overheating adjusting assembly is arranged close to the powder concentrator body, and the overheating adjusting assembly controls the opening degree of the opening and closing plate assembly according to the change of the temperature in the powder concentrator body. According to the side air supplement valve device of the powder concentrator, control over the primary air inlet amount of the opening and closing plate assembly is matched with control over the secondary air inlet amount of the air supplement valve, accurate control over the air inlet amount is achieved, the real-time action frequency of the air supplement valve is reduced, the use precision is improved, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a powder concentrator technical field, specifically, relate to a powder concentrator's side air supplement valve device. BACKGROUND

[0002] There are many types of powder concentrators, and different types are suitable for different materials. Different models are also made according to the requirements of customers for the fineness of the material. Commonly known powder concentrators include cyclone type cyclone powder concentrator, three separation powder concentrator, centrifugal type powder concentrator, coal mill special powder concentrator, calcium powder special powder concentrator, etc. Later, many high-efficiency powder concentrators were developed. The high-efficiency three separation powder concentrator is a new generation of varieties that improve the shortcomings of the original and increase the yield.

[0003] The existing powder concentrator will increase the air supplement valve at the side end. The function of the air supplement valve is to reduce the circulating temperature in the powder concentrator. If the circulating temperature in the powder concentrator is too high, it will increase the electrostatic adsorption of the powder, thereby causing the material to be discharged smoothly. The opening degree of the air supplement valve determines the air intake. The opening degree of the air supplement valve is determined by the monitoring system for monitoring the circulating temperature in the powder concentrator. At this time, the air supplement valve is an electric control valve. When the circulating temperature in the powder concentrator is too high, the opening degree of the air supplement valve becomes larger, thereby increasing the air intake to reduce the circulating temperature in the powder concentrator. Because the opening degree of the air supplement valve directly affects the amount of air intake, the opening degree of the air supplement valve needs to be very accurate. However, after long-term use of the air supplement valve, the opening degree is inevitably inaccurate, thereby affecting the accuracy of the air intake. Therefore, there is an urgent need for a powder concentrator side air supplement valve device. SUMMARY

[0004] To improve the above problems, the utility model discloses a kind of powder concentrator side air supplement valve devices, reduce the use frequency of air supplement valve, solve the problem of inaccurate air intake, it includes powder concentrator main body, two air supplement channels are not adjacent and are arranged in the side end of powder concentrator main body, air supplement channel is tangentially arranged with the side end of powder concentrator main body, air supplement channel is installed with air supplement valve at the end away from powder concentrator main body, opening and closing plate assembly and overheating adjusting assembly connected with opening and closing plate assembly are installed in air supplement channel, overheating adjusting assembly is close to powder concentrator main body and is arranged, and the opening degree of opening and closing plate assembly is controlled according to the change of temperature in powder concentrator main body by overheating adjusting assembly.

[0005] Preferably, the ventilation capacity of the two air supplement channels is different.

[0006] Preferably, the overheating adjusting assembly comprises:

[0007] Adjusting seat, adjusting seat is fixedly installed in the top of air supplement channel, and is close to powder concentrator main body and is arranged;

[0008] Mounting groove, mounting groove is opened on adjusting seat;

[0009] The thermistor is fixedly installed in the installation groove and is arranged away from the shutter assembly.

[0010] The magnetic base is fixedly installed in the installation groove and is connected with the thermistor.

[0011] The installation spring is arranged through the magnetic base, one end of the installation spring is abutted on the thermistor, the other end of the installation spring is connected with the magnetic slider, the magnetic slider is slidingly connected in the installation groove, and the magnetic base is located between the thermistor and the magnetic slider.

[0012] The pull rope is connected between the magnetic slider and the shutter assembly.

[0013] Preferably, the shutter assembly comprises:

[0014] The installation frame is fixedly installed on the inner wall of the air supplementing channel.

[0015] The shutter is installed in the installation frame through the installation rotating shaft.

[0016] The action chamber is located at the top of the installation frame, the upper end of the installation rotating shaft is rotatably installed in the action chamber, and the pull rope extends into the action chamber.

[0017] The rotating gear is located in the action chamber and is installed on the installation rotating shaft.

[0018] One end of the transmission chain belt is installed on the inner wall of the action chamber through the reset spring, the other end of the transmission chain belt is connected with the pull rope, and the transmission chain belt is connected with the rotating gears.

[0019] Preferably, the action chamber is provided with a guide roller for facilitating transmission of the transmission chain belt.

[0020] Preferably, the magnetism of the magnetic base is inversely proportional to the resistance of the thermistor.

[0021] Preferably, the number of the shutter is at least four.

[0022] Compared with the prior art, the utility model has the advantages of:

[0023] The side air supplement valve device of the powder selecting machine is provided with the opening-closing plate assembly, the control of the first air inlet amount of the opening-closing plate assembly is matched with the control of the second air inlet amount of the air supplement valve, the precise control of the air inlet amount is realized, the real-time action frequency of the air supplement valve is reduced, and the use precision and the service life are improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0025] Figure 1 It is a structural schematic diagram of the present application;

[0026] Figure 2 It is Figure 1 The enlarged view of reference sign A;

[0027] Figure 3 It is a structural schematic diagram of the opening-closing plate assembly of the present application Figure 1 (in the first opening degree state);

[0028] Figure 4 It is a structural schematic diagram of the opening-closing plate assembly of the present application Figure 2 (in the second opening degree state);

[0029] Figure 5 It is a front view of the present application;

[0030] Figure 6 The top view of the utility model.

[0031] In the figure: 10. The main body of the powder selecting machine; 11. The air supplement channel; 12. The air supplement valve; 13. The open-close plate assembly; 14. The overheating adjusting assembly; 15. The adjusting seat; 16. The installation groove; 17. The thermistor; 18. The magnetic seat; 19. The installation spring; 20. The magnetic slider; 21. The pull rope; 22. The installation frame; 23. The open-close plate; 24. The action chamber; 25. The rotating gear; 26. The transmission chain belt; 27. The reset spring; 28. The guide roller. DETAILED DESCRIPTION

[0032] The technical solutions of the utility model will be described clearly and completely in combination with the drawings, obviously, the described embodiments are a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0033] EMBODIMENT

[0034] The utility model will be further described in combination with the drawings.

[0035] As Figures 1 to 6 Indicated, the side air supplement valve device of a kind of powder selecting machine provided by the present embodiment, including the main body of powder selecting machine 10, the side end of the main body of powder selecting machine 10 is not adjacent and is provided with two air supplement channels 11, air supplement channel 11 is tangentially arranged with the side end of the main body of powder selecting machine 10, air supplement channel 11 is installed with air supplement valve 12 far from the end of the main body of powder selecting machine 10, air supplement channel 11 is installed with open-close plate assembly 13 and the overheating adjusting assembly 14 connected with open-close plate assembly 13, overheating adjusting assembly 14 is close to the main body of powder selecting machine 10 and is arranged, and overheating adjusting assembly 14 controls the opening of open-close plate assembly 13 according to the change of temperature in the main body of powder selecting machine 10.

[0036] The working principle and beneficial effects of the above technical scheme are as follows:

[0037] The utility model discloses a kind of side air supplement valve devices of powder concentrator, the control of once air intake of shutter subassembly 13 is completed, the opening and closing of air supplement valve 12 completes secondary air intake control, and the opening of shutter subassembly 13 is controlled by overheating adjusting component 14, when overheating adjusting component 14 detects that temperature in powder concentrator main body 10 is too high, shutter subassembly 13 opening is opened to maximum to improve air intake, and when temperature is not reduced, the opening of air supplement valve 12 is also increased to further improve air intake, and when temperature in powder concentrator main body 10 restores normal, overheating adjusting component 14 preferentially controls the opening of shutter subassembly 13 reduces to reduce air intake.The side air supplement valve device of powder concentrator provided by the utility model, the control of once air intake of shutter subassembly 13 and secondary air intake control of air supplement valve 12 are matched, realize the accurate control of air intake, and reduce the real-time action frequency of air supplement valve 12, improve use precision and service life.

[0038] In one embodiment, the ventilation volume of the two air supplement channels 11 is different.

[0039] In one embodiment, the overheating adjusting component 14 comprises:

[0040] Adjusting seat 15, adjusting seat 15 is fixedly installed in the top of air supplement channel 11, and is arranged close to powder concentrator main body 10;

[0041] Mounting groove 16, mounting groove 16 is opened on adjusting seat 15;

[0042] Thermistor 17, thermistor 17 is fixedly installed in mounting groove 16, and is arranged away from shutter subassembly 13;

[0043] Magnetic seat 18, magnetic seat 18 is fixedly installed in mounting groove 16, and is connected with thermistor 17;

[0044] Mounting spring 19, mounting spring 19 is arranged through magnetic seat 18, one end of mounting spring 19 is arranged on thermistor 17, the other end of mounting spring 19 is connected with magnetic slider 20, magnetic slider 20 is slidingly connected in mounting groove 16, and magnetic seat 18 is located between thermistor 17 and magnetic slider 20;

[0045] Pull cord 21, pull cord 21 is connected between magnetic slider 20 and shutter subassembly 13.

[0046] Wherein, the magnetism of magnetic seat 18 and the resistance of thermistor 17 are inversely proportional.

[0047] Wherein, shutter subassembly 13 comprises:

[0048] Mounting frame 22, mounting frame 22 is fixedly installed on the inner wall of air supplement channel 11;

[0049] The plurality of open-close plates 23 are respectively installed in the installation frame 22 through the installation rotating shafts;

[0050] The action chamber 24 is located at the top of the installation frame 22, the upper end of the installation rotating shaft is rotatably installed in the action chamber 24, and the pull rope 21 extends into the action chamber 24;

[0051] The rotating gear 25 is located in the action chamber 24 and is installed on the installation rotating shaft;

[0052] The transmission chain belt 26 has one end installed on the inner wall of the action chamber 24 through the reset spring 27, the other end is connected with the pull rope 21, and the transmission chain belt 26 is connected with the rotating gears 25.

[0053] The working principle and beneficial effects of the above technical scheme are as follows:

[0054] The open-close plate assembly 13 is in the first opening state as shown in Figure 3 When the temperature in the powder selecting machine body 10 is too high, the heat is transferred to the thermistor 17, the resistance of the thermistor 17 becomes small after the temperature is too high, so that the magnetism of the magnetic seat 18 connected with the thermistor 17 becomes strong, the magnetic attraction of the magnetic seat 18 to the magnetic slider 20 is enhanced, the installation spring 19 is contracted, the magnetic slider 20 acts in the contraction direction of the installation spring 19 in the installation groove 16, the magnetic slider 20 pulls the pull rope 21 and the transmission chain belt 26 connected with the pull rope 21 to slide in the stretching direction of the reset spring 27, the rotating gears 25 matched with the transmission chain belt 26 are synchronously rotated, the installation rotating shaft connected with the rotating gears 25 and the open-close plates 23 installed on the installation rotating shaft are rotated in the installation frame 22, so that the opening degree is changed, and when the open-close plates 23 are in the second opening state as shown in Figure 4 The maximum opening degree is achieved, and the air inlet amount is maximum. When the temperature in the powder selecting machine body 10 returns to normal, the temperature of the thermistor 17 decreases, the resistance of the thermistor 17 becomes large, so that the magnetism of the magnetic seat 18 connected with the thermistor 17 becomes weak, the magnetic attraction of the magnetic seat 18 to the magnetic slider 20 is weakened, the installation spring 19 is reset and stretched, the magnetic slider 20 acts in the stretching direction of the installation spring 19 in the installation groove 16, the reset spring 27 is reset and contracted, the rotating gears 25 matched with the transmission chain belt 26 are synchronously reversely rotated, the installation rotating shaft connected with the rotating gears 25 and the open-close plates 23 installed on the installation rotating shaft are reversely rotated in the installation frame 22.

[0055] In an embodiment, a guide roller 28 is installed in the action chamber 24 to facilitate the transmission of the transmission chain belt 26.

[0056] In an embodiment, the number of the open-close plates 23 is at least four.

[0057] Obviously, the above embodiments are merely example for clearly illustrating but not limitation to the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments need not and can not be enumerated. The obvious changes or variations derived from the above description are still within the protection scope of the present application.

Claims

1. A side-supply air valve device for an air classifier, comprising an air classifier body (10), characterized in that, Two air supply channels (11) are provided on the side of the air classifier body (10) without being adjacent to each other. The air supply channels (11) are tangential to the side of the air classifier body (10). An air supply valve (12) is installed at the end of the air supply channel (11) away from the air classifier body (10). An opening and closing plate assembly (13) and an overheating adjustment assembly (14) connected to the opening and closing plate assembly (13) are installed in the air supply channel (11). The overheating adjustment assembly (14) is located close to the air classifier body (10). The overheating adjustment assembly (14) controls the opening degree of the opening and closing plate assembly (13) according to the temperature change inside the air classifier body (10).

2. The side air supply valve device for an air classifier according to claim 1, characterized in that, The ventilation volumes of the two make-up air channels (11) are different.

3. The side air supply valve device for an air classifier according to claim 1, characterized in that, The overheating adjustment assembly (14) includes: an adjustment seat (15) fixedly installed at the top of the air supply channel (11) and located close to the air classifier body (10); an installation groove (16) opened on the adjustment seat (15); a thermistor (17) fixedly installed in the installation groove (16) and located away from the opening and closing plate assembly (13); a magnetic seat (18) fixedly installed in the installation groove (16) and connected to the thermistor (17); an installation spring (19) passing through the magnetic seat (18), one end of the installation spring (19) abutting against the thermistor (17), and the other end of the installation spring (19) connected to a magnetic slider (20), the magnetic slider (20) slidingly connected in the installation groove (16), and the magnetic seat (18) located between the thermistor (17) and the magnetic slider (20); and a pull rope (21) connected between the magnetic slider (20) and the opening and closing plate assembly (13).

4. The side air supply valve device for an air classifier according to claim 3, characterized in that, The hinged plate assembly (13) includes: a mounting frame (22) fixedly installed on the inner wall of the air supply channel (11); multiple hinged plates (23) are respectively installed in the mounting frame (22) via mounting shafts; an actuation chamber (24) is located at the top of the mounting frame (22), the upper end of the mounting shaft is rotatably installed in the actuation chamber (24), and a pull rope (21) extends into the actuation chamber (24); a rotating gear (25) is located in the actuation chamber (24) and installed on the mounting shaft; one end of the transmission chain (26) is installed on the inner wall of the actuation chamber (24) via a return spring (27), the other end of the transmission chain (26) is connected to the pull rope (21), and the transmission chain (26) is connected to each rotating gear (25).

5. The side air supply valve device for an air classifier according to claim 4, characterized in that, The action chamber (24) is equipped with guide rollers (28) to facilitate the transmission of the transmission chain (26).

6. The side air supply valve device for an air classifier according to claim 3, characterized in that, The magnetism of the magnetic base (18) is inversely proportional to the resistance of the thermistor (17).

7. The side air supply valve device for an air classifier according to claim 4, characterized in that, The number of hinged panels (23) is at least 4.

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