Combustor connector of copper oxide powder high-temperature heating device

Abstract

The utility model discloses a burner interface of a copper oxide powder high-temperature heating device. Comprising a combustor, an oxidizing furnace and a combustor connector, the combustor comprises an air supply system, an ignition system and a spraying opening, a circle of furnace body bolt holes are formed in the connector end of the oxidizing furnace, an oxidizing furnace cavity is formed in a furnace body of the oxidizing furnace, and the combustor connector comprises a double-wall heat-resisting cylinder; the double-wall heat-resisting cylinder comprises a heat-resisting outer cylinder, a heat-resisting inner cylinder, a furnace connecting flange, a connector joint and a sealing ring, a heat-insulating cavity is formed between the heat-resisting outer cylinder and the heat-resisting inner cylinder, the heat-insulating cavity is filled with a heat-insulating material, the two ends of the heat-insulating cavity are sealed through the furnace connecting flange and the sealing ring, and the furnace connecting flange is provided with a flange bolt hole corresponding to a furnace body bolt hole; the end of the heat-resisting inner cylinder extends out of the furnace connecting flange by a certain distance, the tail end of the heat-resisting inner cylinder is connected with a connector connector, a combustion chamber is defined in the heat-resisting inner cylinder, and the ejection opening is attached to the heat-resisting inner cylinder and inserted into the combustion chamber. The heating device is high in heating efficiency, high in safety performance and convenient to maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of powder metallurgy, in particular to a burner interface of a copper oxide powder high-temperature heating device. Background Art

[0002] Copper powder has excellent thermal and electrical conductivity, as well as good corrosion resistance and mechanical properties. It is widely used in the field of powder metallurgy. During the preparation process, copper powder needs to be oxidized, reduced, and crushed at high temperature. The oxidation process is to heat the copper powder at high temperature to cause it to undergo an oxidation reaction to produce copper oxide.

[0003] The prior art uses a burner in conjunction with a wind chamber to heat the copper powder oxidation furnace at high temperature. The burner is directly inserted into the wind chamber. The burner is connected to natural gas and fully burns in the combustion chamber to produce flue gas. Air is introduced into the wind chamber to mix with the flue gas to form a hot air flow that enters the combustion chamber, and the hot air flow is used to oxidize the copper powder. The disadvantage is that in order to prevent high temperature from damaging the air inlet in the wind chamber, the temperature set by the burner cannot be set too high, resulting in low efficiency of copper powder oxidation and too long oxidation time. Utility Model Content

[0004] The utility model aims to address the deficiencies in the prior art and to provide a burner interface for a high-temperature heating device for copper oxide powder, which utilizes a burner for heating and has high heating efficiency and high safety performance.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a burner interface of a high-temperature heating device for copper oxide powder, comprising a burner, an oxidation furnace and a burner joint, the burner comprising an air supply system, an ignition system and a nozzle, the interface end of the oxidation furnace is provided with a circle of furnace body bolt holes, and an oxidation furnace chamber is formed inside the furnace body of the oxidation furnace, characterized in that: the burner joint comprises a double-walled heat-resistant cylinder, the double-walled heat-resistant cylinder comprises a heat-resistant outer cylinder, a heat-resistant inner cylinder, a furnace flange, a connector joint and a sealing ring, an insulating chamber is formed between the heat-resistant outer cylinder and the heat-resistant inner cylinder, the insulating chamber is filled with insulating material, and both ends of the insulating chamber are sealed by the furnace flange and the sealing ring, the furnace flange is provided with flange bolt holes corresponding to the furnace body bolt holes, the end of the heat-resistant inner cylinder extends out of the furnace flange for a distance and is connected to the connector joint at the end, a combustion chamber is formed in the heat-resistant inner cylinder, and the nozzle is inserted into the combustion chamber close to the heat-resistant inner cylinder. It needs to be further explained that after using the burner, the use of the wind chamber can be avoided to avoid high temperature damage to the air inlet; at the same time, since the highest temperature part of the burner is at the ejection port when it is working, in order to reduce the conduction of high temperature to the oxidation furnace, the flange bolt hole is set on the outside of the furnace flange to reduce high temperature damage to the oxidation furnace and the connecting bolts.

[0006] Preferably, multiple layers of six reinforcing ribs are provided in the heat-insulating chamber, the six reinforcing ribs are coplanar and perpendicular to the heat-resistant outer cylinder, and the six reinforcing ribs are equally divided in a circle and arranged on a side away from the furnace flange.

[0007] Preferably, one end of the reinforcing rib is fixedly connected to the heat-resistant outer cylinder, and the other end of the reinforcing rib is against the heat-resistant inner cylinder. It should be further explained that due to the high temperature of the heat-resistant inner cylinder, direct welding and fixing easily causes the reinforcing rib to deform and soften due to high temperature, and the semi-contact reinforcing rib reduces the high-temperature deformation of the heat-resistant inner cylinder.

[0008] Preferably, the connector joint is provided with a connector bolt hole.

[0009] Preferably, the heat insulating material comprises a high-aluminum fiber blanket. By filling the heat insulating chamber with the high-aluminum fiber blanket, the heat insulating capacity of the burner joint is increased to prevent the hot air ejected from the burner from directly acting on the interface end of the oxidation furnace.

[0010] Preferably, the heat-resistant outer cylinder, heat-resistant inner cylinder, furnace flange, connector joint and sealing ring are all made of high-temperature resistant material 310S.

[0011] Preferably, the inner wall of the oxidation furnace chamber is in contact with the outer wall of the heat-resistant outer cylinder.

[0012] Preferably, the double-walled heat-resistant tube is horizontally penetrated with a first temperature measuring tube and a second temperature measuring tube, the first temperature measuring tube is located at an upper position inside the double-walled heat-resistant tube, the second temperature measuring tube is located at a right position inside the double-walled heat-resistant tube, the front ends of the first temperature measuring tube and the second temperature measuring tube both extend out of the furnace flange for a certain distance, and the rear ends of the first temperature measuring tube and the second temperature measuring tube both extend out of the sealing ring for a certain distance. It should be further explained that the front ends of the first temperature measuring tube and the second temperature measuring tube are both used to connect to the temperature monitoring sensor. Since the highest point of the temperature of the flame ejected from the burner is located at an upper position where the oxidation furnace chamber contacts the sealing ring, the temperature of the front end of the flame ejected from the burner is measured by the first temperature measuring tube, and the temperature of the side end of the flame ejected from the burner is measured by the second temperature measuring tube, so as to monitor the temperature of the flame in the oxidation furnace chamber in real time and adjust the burner in time.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. Double-wall heat-resistant tubes equipped with heat-insulating materials are used to reduce the high temperature generated by the burner from being transmitted to the oxidation furnace, so that the maximum operating temperature of the burner is increased to 810-950°C, thereby improving the oxidation efficiency of the oxidation furnace.

[0015] 2. The burner joint is a connecting device between the burner and the oxidation furnace. The part of the oxidation furnace that is easily damaged by high temperature is transferred to the burner joint, which is convenient for replacement and maintenance of the burner joint without affecting the operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the utility model.

[0017] Figure 2 It is a left side view of the burner joint in the utility model.

[0018] Figure 3 It is a left view of the oxidation furnace in the utility model.

[0019] Among them, 1-burner, 11-ignition system, 12-air supply system, 13-spout, 2-burner joint, 21-double-wall heat-resistant cylinder, 22-heat-resistant outer cylinder, 23-heat-resistant inner cylinder, 24-furnace flange, 25-sealing ring, 26-connector joint, 27-insulating chamber, 28-reinforcement rib, 29-combustion chamber, 31-connector bolt hole, 32-flange bolt hole, 4-oxidation furnace, 41-oxidation furnace cavity, 42-furnace body bolt hole, 51-first temperature measuring tube, 52-second temperature measuring tube. DETAILED DESCRIPTION

[0020] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that these implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0021] like Figures 1 to 3The burner 1 interface of the copper oxide powder high temperature heating device shown in the figure comprises a burner 1, an oxidation furnace 4 and a burner joint 2, the burner 1 comprises an air supply system 12, an ignition system 11 and a nozzle 13, a circle of furnace body bolt holes 42 are provided at the interface end of the oxidation furnace 4, an oxidation furnace cavity 41 is formed inside the furnace body of the oxidation furnace 4, the burner joint 2 comprises a double-walled heat-resistant tube 21, the double-walled heat-resistant tube 21 comprises a heat-resistant outer tube 22, a heat-resistant inner tube 23, a furnace flange 24, a connector 26 and a sealing ring 25 The heat-resistant outer cylinder 22, the heat-resistant inner cylinder 23, the furnace flange 24, the connector 26 and the sealing ring 25 are all made of high-temperature resistant material 310S. An insulating chamber 27 is formed between the heat-resistant outer cylinder 22 and the heat-resistant inner cylinder 23. Three layers of six reinforcing ribs 28 are arranged in the insulating chamber 27. The six reinforcing ribs 28 are coplanar and perpendicular to the heat-resistant outer cylinder 22. The six reinforcing ribs 28 are equally divided on the side away from the furnace flange 24. One end of the reinforcing rib 28 is welded to the heat-resistant outer cylinder 22. The reinforcing rib 28 is The other end abuts against the heat-resistant inner tube 23, and the heat-insulating chamber 27 is filled with a high-aluminum fiber blanket. The two ends of the heat-insulating chamber 27 are sealed by the furnace flange 24 and the sealing ring 25. The furnace flange 24 is provided with a flange bolt hole 32 corresponding to the furnace body bolt hole 42. The end of the heat-resistant inner tube 23 extends out of the furnace flange 24 for a distance and is connected to the connector joint 26 at the end. The connector joint 26 is provided with a connector bolt hole 31. The interior of the heat-resistant inner tube 23 is enclosed to form a combustion chamber 29, and the ejection port 13 is inserted into the heat-resistant inner tube 23. The combustion chamber 29, the inner wall of the oxidation furnace cavity 41 is fitted with the outer wall of the heat-resistant outer tube 22, and the double-walled heat-resistant tube 21 is horizontally penetrated by a first temperature measuring tube 51 and a second temperature measuring tube 52. The first temperature measuring tube 51 is located at the upper position inside the double-walled heat-resistant tube 21, and the second temperature measuring tube 52 is located at the right position inside the double-walled heat-resistant tube 21. The front ends of the first temperature measuring tube 51 and the second temperature measuring tube 52 both extend out of the furnace flange 24 for a distance, and the rear ends of the first temperature measuring tube 51 and the second temperature measuring tube 52 both extend out of the sealing ring 25 for a distance.

[0022] The working principle and process of this embodiment are as follows: align the heat-resistant outer cylinder 22 of the burner joint 2 with the oxidation furnace chamber 41 and put it in, adjust the angle so that the flange bolt hole 32 corresponds to the furnace body bolt hole 42 and connect them by bolts, align the jet port 13 of the burner 1 with the combustion chamber 29 and insert it, adjust the angle so that the connector bolt hole 31 corresponds to the bolt hole of the burner 1 and connect them by bolts;

[0023] When the burner 1 is working, the temperature of the ejection port 13 is dynamically monitored and adjusted to 810-950°C through the temperature monitoring sensor connected to the first temperature measuring tube 51 and the second temperature measuring tube 52. The high-temperature gas rushes to the combustion chamber 29 and leads to the oxidation furnace chamber 41. The high-aluminum fiber blanket in the insulation chamber 27 is used for insulation. The reinforcing ribs 28 are used to reduce the high-temperature deformation of the heat-resistant inner tube 23. The flange bolt holes 32 of the furnace flange 24 are opened to the outside to reduce the temperature transmitted to the oxidation furnace 4 through the heat-resistant inner tube. The entire burner 1 interface is easy and convenient to install, and the high-temperature vulnerable position is transferred from the oxidation furnace 4 to the burner joint 2. When the burner joint 2 is damaged or deformed due to high temperature, the burner joint 2 is directly replaced to reduce damage to the oxidation furnace 4.

[0024] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A burner interface of a high-temperature heating device for copper oxide powder, comprising a burner, an oxidation furnace and a burner joint, wherein the burner comprises an air supply system, an ignition system and a spray port, a circle of furnace body bolt holes is provided at the interface end of the oxidation furnace, and an oxidation furnace cavity is formed inside the furnace body of the oxidation furnace, characterized in that: The burner joint includes a double-walled heat-resistant cylinder, which includes a heat-resistant outer cylinder, a heat-resistant inner cylinder, a furnace flange, a connector and a sealing ring. An insulating chamber is formed between the heat-resistant outer cylinder and the heat-resistant inner cylinder, and the insulating chamber is filled with insulating materials. Both ends of the insulating chamber are sealed by the furnace flange and the sealing ring. The furnace flange is provided with flange bolt holes corresponding to the bolt holes of the furnace body. The end of the heat-resistant inner cylinder extends out of the furnace flange for a distance and is connected to the connector at the end. A combustion chamber is formed inside the heat-resistant inner cylinder, and the ejection port is inserted into the combustion chamber close to the heat-resistant inner cylinder.

2. The burner interface of the copper oxide powder high temperature heating device according to claim 1, characterized in that: The heat-insulating chamber is provided with multiple layers of six reinforcing ribs, the six reinforcing ribs are coplanar and perpendicular to the heat-resistant outer cylinder, and the six reinforcing ribs are equally divided and arranged on a side away from the furnace flange.

3. The burner interface of the copper oxide powder high temperature heating device according to claim 2, characterized in that: One end of the reinforcing rib is fixedly connected to the heat-resistant outer cylinder, and the other end of the reinforcing rib abuts against the heat-resistant inner cylinder.

4. The burner interface of the copper oxide powder high temperature heating device according to claim 1, characterized in that: The connector joint is provided with a connector bolt hole.

5. The burner interface of the copper oxide powder high temperature heating device according to claim 1, characterized in that: The thermal insulation material comprises a high-aluminum fiber blanket.

6. The burner interface of the copper oxide powder high temperature heating device according to claim 1, characterized in that: The heat-resistant outer cylinder, heat-resistant inner cylinder, furnace flange, connector joint and sealing ring are all made of high-temperature resistant material 310S.

7. The burner interface of the copper oxide powder high temperature heating device according to claim 1, characterized in that: The inner wall of the oxidation furnace chamber is in contact with the outer wall of the heat-resistant outer cylinder.

8. The burner interface of the copper oxide powder high temperature heating device according to claim 1, characterized in that: The double-walled heat-resistant tube is horizontally penetrated by a first temperature measuring tube and a second temperature measuring tube. The first temperature measuring tube is located at the upper position inside the double-walled heat-resistant tube, and the second temperature measuring tube is located at the right position inside the double-walled heat-resistant tube. The front ends of the first temperature measuring tube and the second temperature measuring tube both extend out of the furnace flange for a distance, and the rear ends of the first temperature measuring tube and the second temperature measuring tube both extend out of the sealing ring for a distance.

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