Automatic fuel gas control device of zinc oxide roasting furnace

Abstract

The invention relates to the technical field of zinc oxide production, in particular to an automatic gas control device for a zinc oxide roasting furnace, which comprises a first conveying pipe, a second conveying pipe, a first electromagnetic valve, an auxiliary mixing and cleaning device, a mixing conveying pipe, a second electromagnetic valve and an oxygen conveying pipe, the first conveying pipe and the second conveying pipe are connected in a clamping mode through a clamping connecting sleeve, and rubber gaskets are arranged between the interiors of the two ends of the clamping connecting sleeve and the outer walls of the first conveying pipe and the second conveying pipe. According to the invention, when the initial gas with high flow velocity and flow is conveyed from the interior of the first conveying pipe, the gas is preliminarily adjusted by the self-adjusting main body, so that the gas enters the interior of the second conveying pipe in a quantitative and constant-speed manner, and then the flow velocity and flow of the gas are accurately adjusted again by using the first electromagnetic valve mounted on the second conveying pipe; and through the arranged self-adjusting main body, automatic mechanical auxiliary gas flow and flow velocity adjustment is achieved, and the first electromagnetic valve can be protected.

Description

Technical Field

[0001] The invention relates to the technical field of zinc oxide production, in particular to a fuel gas automatic control device for a zinc oxide roasting furnace. Background Art

[0002] The gas automation control device of the zinc oxide roasting furnace is an important equipment for accurately controlling the gas supply and combustion process in the zinc oxide production process. The design of this device is to improve production efficiency, save energy and ensure production safety. However, during the use of the existing gas automation control device of the zinc oxide roasting furnace, the initial gas flow rate is inconvenient to adjust, and the initial adjustment valve body is easily affected by the initial high flow rate and high flow of gas and malfunctions. It is easy to malfunction during use, making it inconvenient to adjust and control the initial high flow rate of gas, and the gas and oxygen are not mixed sufficiently and evenly, and it is inconvenient to clean the internal impurities, resulting in poor quality of the prepared zinc oxide. Therefore, a device is needed to solve the above-mentioned problems. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides a gas automation control device for a zinc oxide roasting furnace.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a gas automation control device for a zinc oxide roasting furnace, comprising a first delivery pipe, a second delivery pipe, a first solenoid valve, an auxiliary mixing and cleaning device, a mixed delivery pipe, a second solenoid valve and an oxygen supply pipe, the first delivery pipe and the second delivery pipe are connected by a clamping connection sleeve, and rubber gaskets are arranged between the inside of both ends of the clamping connection sleeve and the outer walls of the first delivery pipe and the second delivery pipe, and fixed connection threaded columns are evenly rotated at both ends of the clamping connection sleeve, and the end of the fixed connection threaded column is in compression contact with the rubber gasket, the first solenoid valve is fixedly connected to the end of the second delivery pipe away from the first delivery pipe, the mixed delivery pipe is fixedly connected to the side end of the first solenoid valve away from the second delivery pipe, the oxygen supply pipe is evenly arranged at the side end of the mixed delivery pipe, the second solenoid valve is fixedly connected between the mixed delivery pipe and the oxygen supply pipe, and the auxiliary mixing and cleaning device is arranged at the end of the mixed delivery pipe away from the first solenoid valve.

[0005] Preferably, a self-adjusting body is provided at the end of the second delivery pipe and inside the clamping connection sleeve.

[0006] Preferably, the self-adjusting body includes an extrusion detection disk, a conical adjustment column, a self-adjusting spring, a connecting ring, a fixed mounting bolt and a fixed mounting ring, the conical adjustment column is fixedly connected to the middle of the inner end of the extrusion detection disk, the self-adjusting spring is evenly fixedly connected to the extrusion detection disk, the connecting ring is fixedly connected to the end of the self-adjusting spring facing away from the extrusion detection disk, the fixed mounting ring is fixedly connected to the connecting ring, and the fixed mounting bolt is evenly threaded and inserted into the fixed mounting ring.

[0007] Preferably, the auxiliary mixing and cleaning device comprises a third delivery pipe and a mixing part, and the third delivery pipe is fixedly connected to both ends of the mixing part.

[0008] Preferably, the mixing part includes a motor, a sealing disk, a delivery hole, a mixing barrel, a rotating shaft and mixing blades, the rotating shaft is rotatably clamped in the middle of the mixing barrel, the mixing blades are evenly fixedly mounted on the rotating shaft, the delivery holes are opened at both ends of the mixing barrel, the sealing disk is fixedly connected to the upper end of the mixing barrel by bolts, the motor is fixedly mounted in the middle of the sealing disk, and the driving end of the motor is fixedly connected to the middle of the rotating shaft.

[0009] Preferably, the third delivery pipe is fixedly connected to the mixing cylinder and communicates with the interior of the mixing cylinder through the delivery hole. The number of oxygen delivery pipes arranged at one side end of the mixing delivery pipe is three.

[0010] Preferably, a filter body is provided between the ends of the third delivery pipe and the mixing delivery pipe.

[0011] Preferably, the filter body includes a sealing fixing cover, a fixed connecting plate, a fixed mounting ring frame, a filter screen, a supporting cover and a connecting clamp tube, the connecting clamp tube is fixedly connected to the side end of the supporting cover, the fixed connecting plate is fixedly connected to the sealing fixing cover and the two ends of the supporting cover, the sealing fixing cover is fixed to the supporting cover by bolts, the fixed mounting ring frame is fixed to the inside of the sealing fixing cover by bolts, the filter screen is fixedly arranged inside the fixed mounting ring frame, and the end heads of the third delivery pipe and the mixing delivery pipe are clamped and inserted into the inside of the connecting clamp tube.

[0012] Beneficial effects of the present invention: 1. When the initial high-flow rate gas of the present invention is transported from the inside of the first delivery pipe, it will be preliminarily adjusted by the self-adjusting body so that it can enter the inside of the second delivery pipe at a constant speed and a fixed quantity. Then, the first solenoid valve installed on the second delivery pipe is used again to accurately adjust the flow rate of the gas. The automatic mechanical auxiliary adjustment of the gas flow rate is achieved through the self-adjusting body, which can protect the first solenoid valve. The self-adjusting body can be easily repaired or replaced by removing the fixed connecting sleeve from between the first delivery pipe and the second delivery pipe. The filter screen arranged inside the filter body can filter the mixed oxygen and gas and clean the internal impurities. After separating the sealing fixed cover from the supporting cover, the fixed mounting ring and the filter screen can be easily and quickly taken out for cleaning or replacement.

[0013] 2. In the present invention, oxygen supply pipes are evenly distributed on both sides of the mixing and conveying pipe, and the flow rate and flow rate of oxygen delivered by the oxygen supply pipe to the mixing and conveying pipe can be controlled by the second solenoid valve, and the oxygen supply pipes are evenly distributed on the mixing and conveying pipe, so that the fuel gas delivered by the mixing and conveying pipe can be mixed with oxygen multiple times, so that the oxygen and fuel gas are fully mixed, and the mixed gas will be delivered to the inside of the mixing barrel, and the starting motor drives the rotating shaft and the mixing blades to rotate at a high speed inside the mixing barrel, which can help to make the fuel gas and oxygen mix evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective; Figure 2 It is a schematic diagram of the clamping connection method between the first delivery pipe and the second delivery pipe in the present invention; Figure 3 It is a schematic diagram of the internal structure of the second delivery pipe in the present invention; Figure 4 It is a schematic diagram of the self-adjusting main structure of the present invention; Figure 5 It is a schematic diagram of the structure of the auxiliary mixing and cleaning device in the present invention; Figure 6 It is a schematic diagram of the structure of the auxiliary mixing and cleaning device in the second state of the present invention; Figure 7 It is a schematic diagram of the filtering main structure in the present invention; Figure 8 It is a schematic diagram of the structure of the mixing part in the present invention.

[0016] In the figure: 1-first delivery pipe, 2-second delivery pipe, 3-first solenoid valve, 4-auxiliary mixing and cleaning device, 5-mixing delivery pipe, 6-second solenoid valve, 7-oxygen delivery pipe, 8-self-adjusting body, 9-fixed connection threaded column, 10-clamped connection sleeve, 11-extrusion detection disk, 12-conical adjustment column, 13-self-adjusting spring, 14-connecting ring, 15-fixed mounting bolt, 16-fixed mounting ring, 17-filter body, 18-third delivery pipe, 19-mixing part, 20-sealed fixed cover, 21-fixed connecting plate, 22-fixed mounting ring frame, 23-filter screen, 24-supporting cover, 25-connecting clamping pipe, 26-motor, 27-sealing disk, 28-delivery hole, 29-mixing barrel, 30-rotating shaft, 31-mixing blade. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0018] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0019] The present invention is further described below in conjunction with the accompanying drawings. Example 1

[0020] like Figure 1 , Figure 2 and Figure 3As shown, a gas automation control device for a zinc oxide roasting furnace of the present invention comprises a first delivery pipe 1, a second delivery pipe 2, a first solenoid valve 3, an auxiliary mixing and cleaning device 4, a mixing delivery pipe 5, a second solenoid valve 6 and an oxygen delivery pipe 7. The first delivery pipe 1 and the second delivery pipe 2 are connected by a clamping connection sleeve 10, and rubber gaskets are arranged between the inside of both ends of the clamping connection sleeve 10 and the outer walls of the first delivery pipe 1 and the second delivery pipe 2. Fixed connection threaded columns 9 are evenly rotated at both ends of the clamping connection sleeve 10, and the ends of the fixed connection threaded columns 9 are pressed and contacted with the rubber gaskets. The solenoid valve 3 is fixedly connected to the end of the second delivery pipe 2 away from the first delivery pipe 1, the mixing delivery pipe 5 is fixedly connected to the side end of the first solenoid valve 3 away from the second delivery pipe 2, the oxygen delivery pipe 7 is evenly arranged on the side end of the mixing delivery pipe 5, the second solenoid valve 6 is fixedly connected between the mixing delivery pipe 5 and the oxygen delivery pipe 7, the auxiliary mixing and cleaning device 4 is arranged at the end of the mixing delivery pipe 5 away from the first solenoid valve 3, and a self-adjusting body 8 is arranged at the end of the second delivery pipe 2 and inside the clamping connection sleeve 10. The clamping connection sleeve 10 is arranged to facilitate the clamping connection between the first delivery pipe 1 and the second delivery pipe 2.

[0021] like Figure 4 As shown, the self-adjusting body 8 includes an extrusion detection disk 11, a conical adjustment column 12, a self-adjusting spring 13, a connecting ring 14, a fixed mounting bolt 15 and a fixed mounting ring 16. The conical adjustment column 12 is fixedly connected to the middle of the inner end of the extrusion detection disk 11, the self-adjusting spring 13 is evenly fixedly connected to the extrusion detection disk 11, the connecting ring 14 is fixedly connected to the end of the self-adjusting spring 13 away from the extrusion detection disk 11, the fixed mounting ring 16 is fixedly connected to the connecting ring 14, and the fixed mounting bolt 15 is evenly threaded and rotated to be plugged into the fixed mounting ring 16. The gas is supplied by the first When the delivery pipe 1 delivers to the inside of the second delivery pipe 2, it will squeeze the extrusion detection disk 11. When the flow rate is large, the extrusion force on the extrusion detection disk 11 is large, so that the self-adjusting spring 13 is compressed, and the conical adjustment column 12 moves toward the inside of the second delivery pipe 2, so that the air inlet hole at the end of the second delivery pipe 2 becomes smaller, and the flow rate of the gas can be adjusted. When the flow rate of the gas is small, the conical adjustment column 12 moves outward with the support of the self-adjusting spring 13, so that the gas can be smoothly transported between the first delivery pipe 1 and the second delivery pipe 2.

[0022] like Figure 5 and Figure 6 As shown, the auxiliary mixing and cleaning device 4 includes a third conveying pipe 18 and a mixing part 19. The third conveying pipe 18 is fixedly connected to both ends of the mixing part 19, and the third conveying pipe 18 plays the role of conveying and connecting.

[0023] like Figure 8As shown, the mixing section 19 includes a motor 26, a sealing disk 27, a delivery hole 28, a mixing barrel 29, a rotating shaft 30 and a mixing blade 31. The rotating shaft 30 is rotatably clamped in the middle of the mixing barrel 29, and the mixing blade 31 is evenly fixedly mounted on the rotating shaft 30. The delivery hole 28 is provided at both ends of the mixing barrel 29, and the sealing disk 27 is fixedly connected to the upper end of the mixing barrel 29 by bolts. The motor 26 is fixedly mounted in the middle of the sealing disk 27, and the driving end of the motor 26 is fixedly connected to the middle of the rotating shaft 30. The motor 26 drives the rotating shaft 30 and the mixing blade 31 to rotate at a high speed inside the mixing barrel 29, which can assist in making the gas and oxygen mix evenly.

[0024] The third delivery pipe 18 is fixedly connected to the mixing cylinder 29 and communicated with the interior of the mixing cylinder 29 through the delivery hole 28. Three oxygen delivery pipes 7 are arranged on one side of the mixing delivery pipe 5, so that oxygen can be added at multiple points to ensure sufficient addition and mixing.

[0025] The working principle of the embodiment 1 is as follows: when the initial high-flow gas is transported from the inside of the first delivery pipe 1, it will be preliminarily adjusted by the self-adjusting body 8, so that it can enter the inside of the second delivery pipe 2 at a constant rate and quantity, and then the first solenoid valve 3 installed on the second delivery pipe 2 is used again to accurately adjust the flow rate of the gas. The self-adjusting body 8 is used to automatically mechanically assist in adjusting the flow rate of the gas, which can protect the first solenoid valve 3, and the self-adjusting body 8 can be easily repaired or replaced by removing the clamping connection sleeve 10 from between the first delivery pipe 1 and the second delivery pipe 2. When the gas is transported from the first delivery pipe 1 to the inside of the second delivery pipe 2, the extrusion detection disk 11 will be squeezed. When the flow rate is large, the extrusion force on the extrusion detection disk 11 is large, so that the self-adjusting spring 13 is compressed, and the conical adjustment column 12 moves toward the inside of the second delivery pipe 2, so that the air inlet hole at the end of the second delivery pipe 2 becomes smaller, and the flow rate of the gas can be adjusted. When the flow rate of the gas is small, the conical adjustment column 12 moves outward through the support of the self-adjusting spring 13, so that the gas can be smoothly transported between the first delivery pipe 1 and the second delivery pipe 2; Oxygen delivery pipes 7 are evenly distributed on both sides of the mixing and delivery pipe 5, and the flow rate and flow rate of oxygen delivered by the oxygen delivery pipe 7 to the mixing and delivery pipe 5 can be controlled by the second solenoid valve 6. The oxygen delivery pipes 7 are evenly distributed on the mixing and delivery pipe 5, so that the fuel gas delivered by the mixing and delivery pipe 5 can be mixed with oxygen multiple times, so that the oxygen and fuel gas are fully mixed, and the mixed gas will be delivered to the inside of the mixing barrel 29. The starting motor 26 drives the rotating shaft 30 and the mixing blades 31 to rotate at a high speed inside the mixing barrel 29, which can help to make the fuel gas and oxygen mix evenly. Example 2

[0026] On the basis of Example 1, Figure 6 and Figure 7 As shown, a filter body 17 is arranged between the end of the third delivery pipe 18 and the mixing delivery pipe 5, and the filter body 17 includes a sealing fixed cover 20, a fixed connecting plate 21, a fixed mounting ring frame 22, a filter screen 23, a supporting cover 24 and a connecting clamping tube 25, the connecting clamping tube 25 is fixedly connected to the side end of the supporting cover 24, the fixed connecting plate 21 is fixedly connected to both ends of the sealing fixed cover 20 and the supporting cover 24, the sealing fixed cover 20 is fixed to the supporting cover 24 by bolts, the fixed mounting ring frame 22 is fixed to the inside of the sealing fixed cover 20 by bolts, the filter screen 23 is fixedly arranged inside the fixed mounting ring frame 22, and the end of the third delivery pipe 18 and the mixing delivery pipe 5 is clamped and inserted into the inside of the connecting clamping tube 25.

[0027] When implementing this embodiment, the filter screen 23 arranged inside the filter body 17 can filter the mixed oxygen and fuel gas and clean the internal impurities. By separating the sealing fixed cover 20 from the supporting cover 24, the fixed mounting ring frame 22 and the filter screen 23 can be easily and quickly taken out for cleaning or replacement.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas automation control device for a zinc oxide roasting furnace, comprising a first delivery pipe (1), a second delivery pipe (2), a first solenoid valve (3), an auxiliary mixing and cleaning device (4), a mixing delivery pipe (5), a second solenoid valve (6) and an oxygen delivery pipe (7), characterized in that: The first delivery pipe (1) and the second delivery pipe (2) are connected by a clamping connection sleeve (10), and rubber gaskets are arranged between the inside of the two ends of the clamping connection sleeve (10) and the outer walls of the first delivery pipe (1) and the second delivery pipe (2). The two ends of the clamping connection sleeve (10) are evenly rotated with fixed connection threaded columns (9), and the ends of the fixed connection threaded columns (9) are in extrusion contact with the rubber gaskets. The first solenoid valve (3) is fixedly connected to the end of the second delivery pipe (2) away from the first delivery pipe (1), the mixing delivery pipe (5) is fixedly connected to the side end of the first solenoid valve (3) away from the second delivery pipe (2), the oxygen delivery pipe (7) is evenly arranged at the side end of the mixing delivery pipe (5), the second solenoid valve (6) is fixedly connected between the mixing delivery pipe (5) and the oxygen delivery pipe (7), and the auxiliary mixing and cleaning device (4) is arranged at the end of the mixing delivery pipe (5) away from the first solenoid valve (3).

2. The gas automation control device for a zinc oxide roasting furnace according to claim 1, characterized in that: A self-adjusting body (8) is provided at the end of the second delivery pipe (2) and inside the clamping connection sleeve (10).

3. The gas automation control device for a zinc oxide roasting furnace according to claim 2, characterized in that: The self-adjusting body (8) comprises an extrusion detection disk (11), a conical adjustment column (12), a self-adjusting spring (13), a connecting ring (14), a fixed mounting bolt (15) and a fixed mounting ring (16); the conical adjustment column (12) is fixedly connected to the middle of the inner end of the extrusion detection disk (11); the self-adjusting spring (13) is evenly fixedly connected to the extrusion detection disk (11); the connecting ring (14) is fixedly connected to an end of the self-adjusting spring (13) facing away from the extrusion detection disk (11); the fixed mounting ring (16) is fixedly connected to the connecting ring (14); and the fixed mounting bolt (15) is evenly threadedly rotatably plugged into the fixed mounting ring (16).

4. The gas automation control device for a zinc oxide roasting furnace according to claim 3, characterized in that: The auxiliary mixing and cleaning device (4) comprises a third delivery pipe (18) and a mixing portion (19), wherein the third delivery pipe (18) is fixedly connected to both ends of the mixing portion (19).

5. The gas automatic control device for a zinc oxide roasting furnace according to claim 4, characterized in that: The mixing section (19) comprises a motor (26), a sealing disk (27), a delivery hole (28), a mixing barrel (29), a rotating shaft (30) and mixing blades (31); the rotating shaft (30) is rotatably clamped in the middle of the mixing barrel (29); the mixing blades (31) are evenly fixedly mounted on the rotating shaft (30); the delivery hole (28) is provided at both ends of the mixing barrel (29); the sealing disk (27) is fixedly connected to the upper end of the mixing barrel (29) by bolts; the motor (26) is fixedly mounted in the middle of the sealing disk (27); and the driving end of the motor (26) is fixedly connected to the middle of the rotating shaft (30).

6. The gas automatic control device for a zinc oxide roasting furnace according to claim 5, characterized in that: The third delivery pipe (18) is fixedly connected to the mixing cylinder (29) and communicates with the interior of the mixing cylinder (29) through the delivery hole (28). The number of oxygen delivery pipes (7) arranged at one end of the mixing delivery pipe (5) is three.

7. The gas automatic control device for a zinc oxide roasting furnace according to claim 6, characterized in that: A filter body (17) is provided between the ends of the third delivery pipe (18) and the mixing delivery pipe (5).

8. The gas automatic control device for a zinc oxide roasting furnace according to claim 7, characterized in that: The filter body (17) comprises a sealing fixed cover (20), a fixed connection plate (21), a fixed mounting ring frame (22), a filter screen (23), a support cover (24) and a connecting clamp pipe (25); the connecting clamp pipe (25) is fixedly connected to the side end of the support cover (24); the fixed connection plate (21) is fixedly connected to both ends of the sealing fixed cover (20) and the support cover (24); the sealing fixed cover (20) is fixed to the support cover (24) by bolts; the fixed mounting ring frame (22) is fixed to the inside of the sealing fixed cover (20) by bolts; the filter screen (23) is fixedly arranged inside the fixed mounting ring frame (22); and the ends of the third delivery pipe (18) and the mixing delivery pipe (5) are clamped and inserted into the inside of the connecting clamp pipe (25).

Images