CN218120606U - Shuttle kiln pressure automatic control device without induced draft fan - Google Patents

Abstract

The utility model relates to a shuttle kiln pressure automatic control device of no draught fan, including the kiln body, kiln body lower part is equipped with the exhaust port, and the exhaust port is connected with the discharge flue of vertical setting, and the discharge flue bottom is equipped with the gas nozzle, and the top of discharge flue is equipped with the chimney, and the upper portion of discharge flue is equipped with spouts the tuber pipe, and the outer end of spouting the tuber pipe is connected with the high-pressure blast pipe, and the high-pressure blast pipe is connected with high pressure positive blower. The utility model discloses changing into and adopting little high-pressure positive blower indirect control, the technology is compact, and area is little, power consumption greatly reduced, the kiln system of discharging fume that the high temperature was burnt no longer need add the secondary air cooling, and more favourable environmental protection and carbon are up to standard, can control the kiln pressure in the kiln, guarantee the firing of product, and the product is fired more stably.

Description

Shuttle kiln pressure automatic control device without induced draft fan

Technical Field

The utility model relates to a do not have shuttle kiln pressure automatic control device of draught fan belongs to stoving kiln technical field.

Background

Conventional shuttle kiln all is equipped with the draught fan that discharges fume generally, and most kilns can be solved owing to the problem of discharging fume that the chimney position of discharging fume brought far away to the use of draught fan, and simultaneously, a large amount of applications of converter also provide better solution for kiln pressure automatic control.

However, under the condition that the distance between the chimney and the kiln is short, or the space of a user site is short and the position of the induced draft fan is not installed, the induced draft fan can be practically cancelled. Therefore, the traditional natural smoke discharging mode still has a large application space, but the traditional natural smoke discharging mode is difficult to control the kiln pressure in the kiln, is not beneficial to firing products and has poor product quality stability.

SUMMERY OF THE UTILITY MODEL

The utility model provides a shuttle kiln pressure automatic control device of no draught fan solves present traditional natural smoke exhaust mode, just hard control to the kiln pressure in the kiln, is unfavorable for the firing of product, the relatively poor problem of product quality stability.

The utility model relates to a shuttle kiln pressure automatic control device of no draught fan, including the kiln body, kiln body lower part is equipped with the exhaust port, and the exhaust port is connected with the discharge flue of vertical setting, and the discharge flue bottom is equipped with the gas nozzle, and the top of discharge flue is equipped with the chimney, and the upper portion of discharge flue is equipped with spouts the tuber pipe, and the outer end of spouting the tuber pipe is connected with the high-pressure blast pipe, and the high-pressure blast pipe is connected with high pressure positive blower. The gas shuttle kiln discharges smoke by adopting a rear end wall, and a vertical smoke discharge channel is arranged on the rear end wall of the shuttle kiln. The air nozzle of the air spraying pipe is flat. The air nozzle is horizontally arranged, and the high-pressure fan is a variable-frequency fan. An electric valve is arranged on the high-pressure air pipe. The air output can be adjusted by adjusting a high pressure fan or an electric valve, so that the kiln pressure can be adjusted.

Preferably, a first temperature sensor and a second pressure sensor are arranged in a kiln cavity of the kiln body, a second temperature sensor is arranged at the gas burner, and the high-pressure fan, the first temperature sensor, the first pressure sensor, the gas burner, the electric valve and the second temperature sensor are connected with a controller. Automatic control can be realized.

Preferably, a sound attenuation box is arranged outside the high-pressure fan, a maintenance port is formed in one side of the sound attenuation box, a detachable maintenance plate is fixed on the maintenance port, an exhaust pipe is arranged at the top of the sound attenuation box, a connecting hose is fixed at the bottom of the exhaust pipe, the lower end of the connecting hose is fixedly connected with an air outlet of the high-pressure fan, the upper end of the exhaust pipe is fixedly connected with the high-pressure air pipe, sound attenuation cotton is fixed on the inner wall of the maintenance plate and the inner wall of the sound attenuation box, and an air inlet is formed in one side wall of the sound attenuation box. The noise generated by the high-pressure fan is reduced. The exhaust pipe can be provided with a silencer to reduce exhaust noise.

Preferably, high pressure positive blower's bottom is fixed with the base, the four corners of base is equipped with the mounting hole, be equipped with the support column in the mounting hole, the bottom of support column is fixed with the mounting panel, the mounting panel is fixed on the bottom in the whistle box, the outside cover of support column has the yielding rubber cover, the mounting hole is passed at the top of yielding rubber cover, the top step department of support column supports there is the spacing metal pad, the top of spacing metal pad is equipped with the lock nut of installing on the support column, the bottom of spacing metal pad is equipped with vibration-damping rubber pad, the lower part cover of yielding rubber cover has yielding rubber piece one and yielding rubber piece two, yielding rubber piece one and yielding rubber piece two are relative one side and are equipped with the circular shape boss, be connected with damping spring between two bosses. Reduce vibration and noise.

Preferably, the bottom of base and the top of mounting panel all are equipped with the circular recess with the yielding rubber piece complex.

The utility model discloses, following beneficial effect has:

the kiln smoke discharge system for high-temperature firing does not need secondary air for cooling, so that the environment is protected, carbon reaches the standard, the kiln pressure in the kiln can be controlled, firing of products is guaranteed, and the products are more stable.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

in the figure: 1. a kiln body; 2. a smoke outlet; 3. a discharge flue; 4. a chimney; 5. a wind spraying pipe; 6. a high pressure air duct; 7. an exhaust duct; 8. a connecting hose; 9. a high pressure fan; 10. maintaining the plate; 11. a sound silencing box; 12. mounting a plate; 13. a second damping rubber block; 14. a damping spring; 15. the gas burner comprises a circular groove, 16, a locking nut, 17, a limiting metal pad, 18, a damping rubber pad, 19, a damping rubber sleeve, 20, a base, 21, supporting columns, 22, damping rubber blocks I and 23 and a gas burner.

Detailed Description

The present invention will be further described with reference to the following examples.

Embodiment 1, as shown in fig. 1 to 2, the utility model discloses a shuttle kiln pressure automatic control device of no draught fan, including the kiln body 1, 1 lower part of the kiln body is equipped with exhaust port 2, and exhaust port 2 is connected with discharge flue 3 of vertical setting, and 3 bottoms of discharge flue are equipped with gas nozzle 23, and the top of discharge flue 3 is equipped with chimney 4, and the upper portion of discharge flue 3 is equipped with air spout pipe 5, and air spout pipe 5's outer end is connected with high-pressurepipe 6, and high-pressurepipe 6 is connected with high pressure positive blower 9.

A first temperature sensor and a second pressure sensor are arranged in a kiln cavity of the kiln body 1, a second temperature sensor is arranged at the position of the gas burner 23, and the high-pressure fan 9, the first temperature sensor, the second pressure sensor, the gas burner 23 and the second temperature sensor are connected with a controller.

The kiln chamber of the kiln body 1 is when the low temperature section, because the temperature is low in the kiln, the difference in temperature is little inside and outside the discharge flue 3, the draft of the supporting chimney 4 of kiln is little, be the pressure-fired situation in the kiln, be unfavorable for the discharge of organic waste gas in the kiln, can light the gas nozzle 23 of installing in the bottom of discharge flue 3 during the low temperature section, the flue gas temperature in the chimney 4 when increasing the low temperature section, improve the draft of chimney 4, the low temperature section can be through the combustion temperature height of gas nozzle 23, adjust the pressure in the kiln. The gas burner 23 arranged at the bottom of the vertical exhaust flue 3 can be ignited at the low-temperature section, so that organic waste gas generated at the low-temperature section in the kiln can be incinerated, and the effect of environment-friendly emission is achieved.

When the kiln cavity of the kiln body 1 is in a high-temperature section, the temperature inside the kiln is high, the temperature difference between the inside and the outside of the discharge flue 3 is large, the suction force formed by the kiln matching chimney 4 is large, when the suction force is too large, the temperature uniformity inside the kiln cannot be guaranteed, and the energy consumption index of the kiln can be greatly improved. At this time, the high pressure fan 9 needs to be opened, the high pressure fan 9 is sprayed into the rear flue through the high pressure air pipe 6 and then through the air spraying pipe 5, a closed air curtain is formed, the discharge of high temperature flue gas in the kiln is blocked, and the pressure in the kiln is increased. The arrangement of the high-speed jet air curtain greatly reduces the smoke exhaust draft of the gas shuttle kiln.

The smoke exhaust draft is automatically controlled by a controller, and the low-temperature section controls the combustion intensity of the gas burner 23, namely the smoke temperature in the rear flue is controlled to increase or decrease the smoke exhaust draft of the gas kiln. The combustion intensity of the gas burner 23 is low, the flue gas temperature in the rear flue is low, the smoke exhaust draft of the gas kiln is small, the combustion intensity of the gas burner is high, the flue gas temperature in the rear flue can be improved, and the smoke exhaust draft of the gas kiln is increased.

The high-temperature section increases or reduces the smoke exhaust suction of the gas kiln by controlling the air quantity of the closed air curtain entering the rear flue. The opening of the electric valve arranged on the high-pressure air pipe 6 is adjusted and increased, the air curtain air injected into the back flue is increased, the smoke exhaust resistance is increased, the smoke temperature is reduced, and the suction force of the kiln is reduced, otherwise, the opening of the electric valve arranged on the high-pressure air pipe 6 is adjusted and reduced, the air curtain air injected into the back flue is reduced, the smoke exhaust resistance is reduced, the smoke temperature is increased, and the suction force of the kiln is increased, so that the stability of the pressure in the gas shuttle kiln is ensured, and the automatic control is realized.

Embodiment 2, on the basis of embodiment 1, the outside of high pressure positive blower 9 is equipped with whistle box 11, one side of whistle box 11 is equipped with the maintenance mouth, be fixed with detachable maintenance board 10 on the maintenance mouth, the top of whistle box 11 is equipped with exhaust pipe 7, the bottom of exhaust pipe 7 is fixed with coupling hose 8, coupling hose 8 lower extreme and high pressure positive blower 9's air outlet fixed connection, the upper end and the high-pressurepipe 6 fixed connection of exhaust pipe 7, be fixed with the amortization cotton on the inner wall of maintenance board 10 and the inner wall of whistle box 11, be equipped with the air intake on one side wall of whistle box 11.

High pressure positive blower 9's bottom is fixed with base 20, base 20's four corners is equipped with the mounting hole, be equipped with support column 21 in the mounting hole, the bottom of support column 21 is fixed with mounting panel 12, mounting panel 12 is fixed on 11 bottoms in the whistle box, the outside cover of support column 21 has damping rubber sleeve 19, the mounting hole is passed at damping rubber sleeve 19's top, the top step department of support column 21 supports spacing metal pad 17, the top of spacing metal pad 17 is equipped with lock nut 16 of installing on support column 21, the bottom of spacing metal pad 17 is equipped with damping rubber pad 18, damping rubber sleeve 19's lower part cover has damping rubber piece one 22 and damping rubber piece two 13, damping rubber piece one 22 and damping rubber piece two 13 relative one side are equipped with the circular shape boss, be connected with damping spring 14 between two bosss.

The bottom of the base 20 and the top of the mounting plate 12 are both provided with circular grooves 15 matched with the damping rubber blocks.

The vibration can be reduced by the cooperation of the damping springs 14 and the damping rubber pads 18 of the first damping rubber block 22 and the second damping rubber block 13, so that the noise is reduced.

To sum up, the utility model discloses change into and adopt little high-pressure positive blower indirect control, the technology is compact, and area is little, power consumption greatly reduced, the kiln exhaust system that high temperature was burnt no longer need add the secondary air cooling, more favourable environmental protection and carbon are up to standard, can control the kiln pressure in the kiln, guarantee the firing of product, and the product is fired more stably.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

In the description of the present invention, the terms "inside", "outside", "longitudinal", "transverse", "up", "down", "top", "bottom" and other indicated directions or positional relationships are the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention, but do not require that the present invention must be constructed and operated in a specific direction, and therefore, should not be construed as limiting the present invention.

Claims (5)

1. The utility model provides a do not have shuttle kiln pressure automatic control device of draught fan, includes the kiln body (1), and kiln body (1) lower part is equipped with exhaust port (2), its characterized in that: the exhaust port (2) is connected with a vertically arranged exhaust flue (3), the bottom of the exhaust flue (3) is provided with a gas burner (23), the top of the exhaust flue (3) is provided with a chimney (4), the upper part of the exhaust flue (3) is provided with a jet pipe (5), the outer end of the jet pipe (5) is connected with a high-pressure air pipe (6), and the high-pressure air pipe (6) is connected with a high-pressure fan (9).

2. The draft fan-free shuttle kiln pressure automatic control device according to claim 1, wherein: a first temperature sensor and a second pressure sensor are arranged in a kiln cavity of the kiln body (1), a second temperature sensor is arranged at the position of the gas burner (23), and the high-pressure fan (9), the first temperature sensor, the second pressure sensor, the gas burner (23) and the second temperature sensor are connected with a controller.

3. The draft fan-free shuttle kiln pressure automatic control device according to claim 1, wherein: the outside of high pressure positive blower (9) is equipped with whistle box (11), one side of whistle box (11) is equipped with the maintenance mouth, be fixed with detachable maintenance board (10) on the maintenance mouth, the top of whistle box (11) is equipped with exhaust pipe (7), the bottom of exhaust pipe (7) is fixed with coupling hose (8), coupling hose (8) lower extreme and the air outlet fixed connection of high pressure positive blower (9), the upper end and the high-pressurepipe (6) fixed connection of exhaust pipe (7), be fixed with the amortization cotton on the inner wall of maintenance board (10) and the inner wall of whistle box (11), be equipped with the air intake on one side wall of whistle box (11).

4. The draft fan-free shuttle kiln pressure automatic control device according to claim 3, wherein: the bottom of high pressure positive blower (9) is fixed with base (20), the four corners of base (20) is equipped with the mounting hole, be equipped with support column (21) in the mounting hole, the bottom of support column (21) is fixed with mounting panel (12), mounting panel (12) are fixed on whistle box (11) bottom, the outside cover of support column (21) has shock attenuation rubber sleeve (19), the mounting hole is passed at the top of shock attenuation rubber sleeve (19), the top step department of support column (21) supports there is spacing metal pad (17), the top of spacing metal pad (17) is equipped with lock nut (16) of installing on support column (21), the bottom of spacing metal pad (17) is equipped with damping rubber pad (18), the lower part cover of damping rubber sleeve (19) has damping rubber piece (22) and damping rubber piece two (13), damping rubber piece one (22) and the relative one side of damping rubber piece two (13) are equipped with circular shape boss, be connected with damping spring (14) between two bosses.

5. The draft fan-free shuttle kiln pressure automatic control device according to claim 4, wherein: the bottom of the base (20) and the top of the mounting plate (12) are both provided with circular grooves (15) matched with the damping rubber blocks.

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