Oxygen-enriched mixing system

Abstract

The utility model discloses an oxygen-enriched mixing system, which comprises a control unit and a working unit, the control unit comprises an oxygen delivery system and a compressed air system, the oxygen delivery system delivers oxygen, and the compressed air system provides pressure control for devices in the oxygen delivery system. The control unit internally comprises a manual adjusting device, a filtering device, a pressure reducing and stabilizing device, a high-low pressure alarm device, a safety cut-off device and a flow adjusting device, and the working unit adopts a porous angled side-blowing mode. The oxygen supply device solves the problem that the oxygen supply device of the oxygen enrichment device of the ignition furnace of the sintering machine is influenced by the oxygen supply pipe during oxygen supply, so that the oxygen supply is not uniform.

Description

TECHNICAL FIELD

[0001] The utility model relates to sintering machine ignition furnace oxygen -enriched combustion field especially oxygen -enriched mixed system. BACKGROUND

[0002] Sintering machine oxygen -enriched ignition refers to providing high concentration oxygen to the burner during the sintering process, making the combustion more sufficient, improving the combustion efficiency, reducing the generation of waste gas and energy consumption. Oxygen -enriched ignition can provide more oxygen, making the combustion more sufficient, thereby improving the combustion efficiency of the sintering process. This not only can reduce the generation of waste gas, but also can reduce the consumption of fuel, improve the economy of the sintering process. Oxygen -enriched ignition can make the combustion in the sintering process more sufficient, thereby reducing the use of fuel and energy consumption. At the same time, the improvement of combustion efficiency can also reduce the emission of fuel gas, further reduce energy loss. A large amount of smoke and waste gas is often generated in the sintering process, causing serious pollution to the environment. Oxygen -enriched ignition can make the fuel burn fully, and the pollution to the environment is also reduced accordingly.

[0003] The traditional sintering machine ignition furnace oxygen -enriched combustion device will be affected by the oxygen supply pipe when the oxygen supply device supplies oxygen, resulting in uneven oxygen supply. UTILITY MODEL CONTENTS

[0004] The utility model wants to solve the technical problem that the traditional sintering machine ignition furnace oxygen -enriched combustion device will be affected by the oxygen supply pipe when the oxygen supply device supplies oxygen, resulting in uneven oxygen supply.

[0005] In order to solve the above technical problem, the utility model provides an oxygen -enriched mixed system, including working unit and control unit, the working unit includes conveying pipeline and combustion air pipe, the conveying pipeline includes vertical pipeline and horizontal pipeline, be provided with elbow pipe between the vertical pipeline and horizontal pipeline, the expansion area is set to the side of the horizontal pipeline close to the vertical pipeline, the pipe diameter of the horizontal pipeline is greater than the pipe diameter of the vertical pipeline, oxygen disperser is arranged in the horizontal pipeline, the distributor is arranged on the horizontal pipeline mouth, the distribution hole is arranged on the peripheral surface of the distributor, the conveying pipeline is arranged on the combustion air pipe, the design that the elbow pipe is arranged between the vertical pipeline and horizontal pipeline can effectively reduce the gas from the vertical pipeline into the horizontal pipeline, the gas turbulence effect generated at the interface, the expansion area is set to the side of the horizontal pipeline close to the vertical pipeline, the design that the pipe diameter of the horizontal pipeline is greater than the pipe diameter of the vertical pipeline can control the gas to flow steadily, the design of oxygen disperser can output gas from the conveying hole steadily.

[0006] Further, the combustion-supporting air pipe is provided with a flow meter, a first oxygen content detector and a second oxygen content detector, the first oxygen content detector is arranged on one side of the distributor, the second oxygen content detector is arranged on the other side of the distributor, the flow meter is arranged on the combustion-supporting air pipe, the first oxygen content detector can detect the oxygen content in the combustion-supporting air, the second oxygen content detector can detect the oxygen content in the combustion-supporting air and oxygen mixed gas, the oxygen content in the combustion-supporting air pipe is controlled between 21% and 28% through feedback adjustment of the control center, and the flow meter can display the flow of the combustion-supporting air and feedback to the control system to adjust the gas flow of the oxygen-enriched mixing device.

[0007] Further, the vertical pipeline is provided with an air filter, the air filter can filter dust and impurities in the gas to ensure smooth air circulation.

[0008] Further, the diameter of the horizontal pipeline is 1.5-5 times of that of the vertical pipeline.

[0009] Further, the oxygen-enriched mixing system can solve the problem that the traditional sintering machine ignition furnace oxygen-enriched combustion device is affected by impurities, moisture in the gas and gas pressure in the device, thereby reducing the sintering work efficiency.

[0010] The control unit comprises an oxygen delivery system and a compressed air system.

[0011] The oxygen delivery system is sequentially provided with a manual butterfly valve, a Y-shaped filter, a first pressure regulating valve, a first pneumatic shut-off valve, a flow regulating valve and a check valve, an injector is arranged between the check valve and the combustion air pipe, a low pressure alarm is arranged between the first pressure regulating valve and the first pneumatic shut-off valve, a high pressure alarm is arranged between the first pneumatic shut-off valve and the flow regulating valve, the design of the manual butterfly valve can control flow, cut off fluid, adjust pressure, save space and optimize fluid performance, the design of the Y-shaped filter can remove impurities in the medium, the design of the first pressure regulating valve can adjust the pressure of the gas in the device to avoid uneven oxygen delivery caused by excessive or insufficient pressure, the design of the first pneumatic shut-off valve can cut off fluid, adjust flow, provide safety protection and stabilize pressure, and can achieve rapid and safe cutting, the design of the flow regulating valve can adjust and maintain the constant flow, the design of the check valve can prevent backflow, protect system equipment and maintain system pressure, the design of the injector arranged between the check valve and the combustion air pipe can flow the gas in the injector into the combustion air pipe, the design of the low pressure alarm can actively alarm when the device is in low pressure condition, reminding the staff to close the system and check and maintain, the design of the high pressure alarm can actively alarm when the device is in high pressure condition, reminding the staff to close the system and check and maintain.

[0012] Further, the compressed air system is sequentially provided with a first ball valve, a pneumatic triplex and a second ball valve, the pneumatic triplex includes a filter, a pressure reducing valve and an oil atomizer, the second ball valve is connected with the pneumatic device of the first pneumatic shut-off valve, a pressure alarm is arranged between the pneumatic triplex and the second ball valve, the design of the first ball valve can control the flow of fluid, open and close the device, adjust the flow and change the flow direction, the design of the pneumatic triplex can filter the compressed air entering the pneumatic system to remove impurities and moisture, effectively protecting the system from pollutants, the pressure reducing valve reduces the high pressure gas to the rated pressure required by the pneumatic instrument, ensuring that the system can operate stably under different working conditions, the oil atomizer injects lubricating oil into the pneumatic system to reduce friction and wear, prolonging the service life of the equipment, the design of the second ball valve can control the gas output by the pneumatic triplex to flow into the second pneumatic shut-off valve and adjust the flow of the gas.

[0013] Further, the first pressure indicator is arranged between the manual butterfly valve and the Y filter, the second pressure indicator is arranged between the Y filter and the first pressure regulating valve, the third pressure indicator is arranged between the first pressure regulating valve and the low pressure alarm, the fourth pressure indicator is arranged between the flow regulating valve and the check valve, and the fifth pressure indicator is arranged between the first ball valve and the pneumatic triplex. The design of the first and second pressure indicators can determine whether the pressure of the Y filter is unbalanced by comparing the pressure indicators. The design of the second and third pressure indicators can determine whether the pressure of the pressure regulating valve is unbalanced by comparing the pressure indicators. The design of the fourth pressure indicator can display the gas pressure passing through the flow regulating valve to determine whether it can flow into the check valve. The design of the fifth pressure indicator can display the gas pressure passing through the first ball valve to determine whether it can flow into the pneumatic triplex.

[0014] Further, the second pressure regulating valve is also included, which is connected in parallel with the first pressure regulating valve. The design of the second pressure regulating valve can control the flow of air in and out of the device, so that oxygen can enter the device in time and dirty air can be discharged, thereby effectively reducing the concentration of harmful substances in the device and protecting the health of people. The design of the parallel connection of the first and second pressure regulating valves can ensure the normal operation of the system when one of the pressure regulating valves works abnormally. The existence of two pressure regulating valves can ensure the control of the flow of air in and out of the device, so that oxygen can enter the device in time and dirty air can be discharged, thereby effectively reducing the concentration of harmful substances in the device and protecting the health of people.

[0015] Further, the second pneumatic shut-off valve and the third ball valve are also included. The second pneumatic shut-off valve is connected to the first pneumatic shut-off valve and the flow regulating valve. The third ball valve is connected to the pneumatic device of the second ball valve and the second pneumatic shut-off valve. The design of the second pneumatic shut-off valve can cut off the fluid, regulate the flow, provide safety protection and stabilize the pressure, and can achieve rapid and safe cutting. The design of the third ball valve can make the gas flowing out of the pneumatic triplex flow into the pneumatic device of the second pneumatic shut-off valve to control the on-off of the gas flow.

[0016] The compressed air system provides air power to the first and second pneumatic shut-off valves. The control hub is also included. The first and second pneumatic shut-off valves and the flow regulating valve are connected to the control hub. The control hub controls the first and second pneumatic shut-off valves and the flow regulating valve. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the front view of the working unit of the oxygen-enriched mixed system.

[0018] Fig. 2It is the control diagram of the oxygen-enriched valve group of the oxygen-enriched mixing system.

[0019] Among them: 1. Manual butterfly valve, 2. First pressure indicator, 3. Y-type filter, 4. Second pressure indicator, 5. First pressure regulating valve, 6. Third pressure indicator, 7. Low pressure alarm, 8. First pneumatic shut-off valve, 9. Second pneumatic shut-off valve, 10. High pressure alarm, 11. Flow control valve, 12. Fourth pressure indicator, 13. Check valve, 14. Second pressure regulating valve, 15. First ball valve, 16. Fifth pressure indicator, 17. Pneumatic triplex, 18. Pressure alarm, 19. Second ball valve, 20. Third ball valve, 21. Injector, 22. Combustion-supporting air duct, 231. Vertical pipe, 232. Horizontal pipe, 2321. Distributor, 2322. Distribution hole, 233. Elbow, 24. Oxygen disperser, 25. Air filter, 27. Flow meter, 281. First oxygen content detector, 282. Second oxygen content detector. DETAILED DESCRIPTION

[0020] The following will describe the implementation of the present invention in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0021] Example 1

[0022] like Figs. 1-2 An oxygen-enriched mixing system is shown, comprising a working unit and a control unit, wherein the working unit comprises a delivery pipe, an oxygen disperser 24 and a combustion-supporting air pipe 22, wherein the delivery pipe comprises a vertical pipe 231 and a horizontal pipe 232, wherein a bend pipe 233 is provided between the vertical pipe 231 and the horizontal pipe 232, wherein an expansion area is provided on a side of the horizontal pipe 232 close to the vertical pipe 231, wherein the diameter of the horizontal pipe 232 is larger than that of the vertical pipe 231, and the oxygen disperser 24 is provided inside the horizontal pipe 232 The transverse pipe 232 is provided with a distributor 2321 at the pipe mouth, and a distribution hole 2322 is provided on the circumference of the distributor 2321. The delivery pipe is arranged in the combustion-supporting air duct 22. The combustion-supporting air duct 22 is provided with a flow meter 27, a first oxygen content detector 281 and a second oxygen content detector 282. The first oxygen content detector 281 is arranged on one side of the distributor 2321, and the second oxygen content detector 282 is arranged on the other side of the distributor 2321. The flow meter 22 is arranged on the combustion-supporting air duct 22;

[0023] The control unit includes an oxygen delivery system and a compressed air system;

[0024] The oxygen delivery system is provided with a manual butterfly valve 1, a Y-type filter 3, a first pressure regulating valve 5, a first pneumatic shut-off valve 8, a flow regulating valve 11 and a check valve 13 in sequence. An ejector 21 is provided between the check valve 13 and the combustion-supporting air pipe 22. A low-pressure alarm 7 is provided between the first pressure regulating valve 5 and the first pneumatic shut-off valve 8. A high-pressure alarm 10 is provided between the first pneumatic shut-off valve 8 and the flow regulating valve 11.

[0025] The compressed air system is provided with a first ball valve 15, a pneumatic triplet 17, and a second ball valve 19 in sequence. The pneumatic triplet 17 includes a filter, a pressure reducing valve, and an oil mist collector. The second ball valve 19 is connected to the pneumatic device of the first pneumatic shut-off valve 8. A pressure alarm 18 is provided between the pneumatic triplet 17 and the second ball valve 19.

[0026] A first pressure indicator 2 is provided between the manual butterfly valve 1 and the Y-type filter 3, a second pressure indicator 4 is provided between the Y-type filter 3 and the first pressure regulating valve 5, a third pressure indicator 6 is provided between the first pressure regulating valve 5 and the low pressure alarm 7, a fourth pressure indicator 12 is provided between the flow regulating valve 11 and the check valve 13, and a fifth pressure indicator 16 is provided between the first ball valve 15 and the pneumatic triplet 17.

[0027] Example 2

[0028] like Figs. 1-2 The oxygen-enriched mixing system shown in the figure is based on the first embodiment and further includes a second pressure regulating valve 14 , which is connected in parallel with the first pressure regulating valve 5 .

[0029] Example 3

[0030] like Figs. 1-2 An oxygen-enriched mixing system shown, based on Example 1, also includes a second pneumatic shut-off valve 9 and a third ball valve 20, one end of the second pneumatic shut-off valve 9 is connected to the first pneumatic shut-off valve 8, the other end of the second pneumatic shut-off valve 9 is connected to the flow regulating valve 11, one end of the third ball valve 20 is connected to the second ball valve 19, and the other end is connected to the pneumatic device of the second pneumatic shut-off valve 9.

[0031] Example 4

[0032] like Figs. 1-2 The oxygen-enriched mixing system shown is based on the first embodiment: the working unit further includes an air filter 25 , and the air filter 25 is arranged in the vertical pipe 231 .

Claims

1. An oxygen-enriched mixing system, characterized in that: The invention comprises a working unit and a control unit, wherein the working unit comprises a delivery pipe and a combustion-supporting air pipe (22), the delivery pipe comprises a vertical pipe (231) and a transverse pipe (232), a bend pipe (233) is provided between the vertical pipe (231) and the transverse pipe (232), an expansion area is provided on a side of the transverse pipe (232) close to the vertical pipe (231), the diameter of the transverse pipe (232) is larger than the diameter of the vertical pipe (231), an oxygen disperser (24) is provided in the transverse pipe (232), a distributor (2321) is provided at the pipe mouth of the transverse pipe (232), a distribution hole (2322) is provided on the circumference of the distributor (2321), and the delivery pipe is provided in the combustion-supporting air pipe (22).

2. An oxygen-enriched mixing system according to claim 1, characterized in that: The combustion-supporting air duct (22) is provided with a flow meter (27), a first oxygen content detector (281) and a second oxygen content detector (282), wherein the first oxygen content detector (281) is provided on one side of the distributor (2321), and the second oxygen content detector (282) is provided on the other side of the distributor (2321), and the flow meter (27) is provided on the combustion-supporting air duct (22).

3. The oxygen-enriched mixing system according to claim 1, characterized in that: An air filter (25) is provided in the vertical pipe (231).

4. The oxygen-enriched mixing system according to claim 1, characterized in that: The diameter of the transverse pipe (232) is 1.5-5 times the diameter of the vertical pipe (231).

5. The oxygen-enriched mixing system according to claim 1, characterized in that: The control unit includes an oxygen delivery system and a compressed air system; The oxygen delivery system is provided with a manual butterfly valve (1), a Y-type filter (3), a first pressure regulating valve (5), a first pneumatic shut-off valve (8), a flow regulating valve (11) and a check valve (13) in sequence; an ejector (21) is provided between the check valve (13) and the combustion-supporting air pipe (22); a low-pressure alarm (7) is provided between the first pressure regulating valve (5) and the first pneumatic shut-off valve (8); and a high-pressure alarm (10) is provided between the first pneumatic shut-off valve (8) and the flow regulating valve (11).

6. An oxygen-enriched mixing system according to claim 5, characterized in that: The compressed air system is provided with a first ball valve (15), a pneumatic triplet (17) and a second ball valve (19) in sequence. The pneumatic triplet (17) includes a filter, a pressure reducing valve and an oil mist generator. The second ball valve (19) is connected to the pneumatic device of the first pneumatic shut-off valve (8). A pressure alarm (18) is provided between the pneumatic triplet (17) and the second ball valve (19).

7. An oxygen-enriched mixing system according to claim 6, characterized in that: A first pressure indicator (2) is provided between the manual butterfly valve (1) and the Y-type filter (3), a second pressure indicator (4) is provided between the Y-type filter (3) and the first pressure regulating valve (5), a third pressure indicator (6) is provided between the first pressure regulating valve (5) and the low pressure alarm (7), a fourth pressure indicator (12) is provided between the flow regulating valve (11) and the check valve (13), and a fifth pressure indicator (16) is provided between the first ball valve (15) and the pneumatic triplex (17).

8. The oxygen-enriched mixing system according to claim 5, characterized in that: It also includes a second pressure regulating valve (14), which is connected in parallel with the first pressure regulating valve (5).

9. The oxygen-enriched mixing system according to claim 5, characterized in that: The invention also includes a second pneumatic shutoff valve (9) and a third ball valve (20), wherein the second pneumatic shutoff valve (9) is connected to the first pneumatic shutoff valve (8) and the flow regulating valve (11), and the third ball valve (20) is connected to the pneumatic device of the second ball valve (19) and the second pneumatic shutoff valve (9).

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