Oxygen injection calcining equipment for zinc oxide production

Abstract

The utility model relates to the technical field of calcining equipment, in particular to oxygen injection calcining equipment for zinc oxide production. According to the technical scheme, the heating furnace comprises an upper furnace body and a lower furnace body, the upper furnace body is fixedly connected to the top of the lower furnace body, the heating furnace further comprises a telescopic pipe and a connecting pipe which are fixedly connected between the upper furnace body and the lower furnace body, an air inlet pipe and an air outlet pipe are fixedly connected to the lower furnace body, and a heating assembly used for heating air is arranged in the lower furnace body. An adjusting assembly used for adjusting the air inlet amount of the air inlet pipe is fixedly installed on one side of the lower furnace. According to the utility model, air entering the upper furnace is heated, and insufficient and incomplete reaction caused by lower air temperature is avoided, so that the production utilization rate of zinc oxide is improved; and meanwhile, air in the upper furnace flows uniformly, zinc makes uniform contact with the air, the calcination effect is improved, the air inlet amount of the air inlet pipe is adjusted, and the use requirement for calcination equipment in zinc oxide production is met.

Description

Technical Field

[0001] The utility model relates to the technical field of calcining equipment, in particular to oxygen injection calcining equipment for zinc oxide production. Background Art

[0002] Zinc oxide is an oxide of zinc, which is insoluble in water but soluble in acid and strong alkali. It is a white solid, also known as zinc white, and can be obtained by burning or roasting zinc concentrate. Zinc oxide is used as an additive in a variety of materials and products, including plastics, ceramics, glass, cement, lubricants, paints, and adhesives. In the prior art, there is an oxygen injection calcination device for zinc oxide production, including an upper furnace and a lower furnace. The upper furnace is used for calcination. The upper furnace and the lower furnace are connected by a gas pipe, and also include an air heating component. By setting up an upper furnace and a lower furnace, and setting an air heating component in the lower furnace, the input air can be heated to avoid too fast a temperature drop caused by the collision of zinc vapor and air, prevent insufficient and incomplete reaction, and improve the production utilization rate of zinc oxide.

[0003] In the above working process, air enters the upper furnace directly from the gas pipeline, and the air flow rate is relatively fast. However, too fast air flow rate will increase the resistance and increase the pressure difference in the upper furnace, which will cause uneven air flow in the upper furnace, making it impossible for zinc oxide to be evenly exposed to oxygen, thus affecting the calcination effect. Therefore, we propose an oxygen injection calcination equipment for zinc oxide production. Summary of the invention

[0004] The utility model aims to solve the problems existing in the background technology and proposes an oxygen injection calcination device for producing zinc oxide.

[0005] The technical solution of the utility model is: an oxygen injection calcination device for zinc oxide production, comprising an upper furnace and a lower furnace, wherein the upper furnace is fixedly connected to the top of the lower furnace, and further comprising:

[0006] A telescopic pipe and a connecting pipe fixedly connected between the upper furnace and the lower furnace;

[0007] An air inlet pipe and an air outlet pipe are fixedly connected to the lower furnace, and a heating component for heating air is provided in the lower furnace;

[0008] A regulating component fixedly mounted on one side of the lower furnace for regulating the air intake amount of the air intake pipe.

[0009] Optionally, a sealing cover is provided on the top of the upper furnace, one end of the telescopic tube passes through the sealing cover and is connected to the interior of the upper furnace, the other end of the telescopic tube is connected to the connecting tube, and the end of the connecting tube away from the upper furnace is connected to the lower furnace.

[0010] Optionally, an air pipe is provided on the upper furnace, a furnace door is provided on one side of the upper furnace, a fixing rod is fixedly installed on one side of the upper furnace close to the connecting pipe, and the connecting pipe is fixedly connected to the fixing rod.

[0011] Optionally, the heating assembly includes a heating cylinder fixedly installed in the lower furnace, the air inlet pipe passes through the heating cylinder and one end is fixedly connected with a hose, an electric heating rod is arranged in the heating cylinder, the hose is wrapped around the outer surface of the electric heating rod, and a conical block is arranged on the top of the heating cylinder.

[0012] Optionally, a ventilation pipe with an inverted trapezoidal cross-section is fixedly connected to the top of the conical block, an air intake channel is opened in the conical block, the bottom of the air intake channel is connected to the hose, the top of the air intake channel is connected to the ventilation pipe, and the top end of the ventilation pipe is connected to the upper furnace.

[0013] Optionally, the adjustment component includes a plurality of groups of air inlet holes opened on the air inlet pipe, a sleeve is provided on the part of the tube body of the air inlet pipe located in the lower furnace, a movable tube is slidably installed in the sleeve, the movable tube is slidably installed on the outside of the air inlet pipe, and a movable component for driving the movable tube to move is provided on the lower furnace.

[0014] Optionally, the moving component includes a mounting groove fixedly installed on the side of the lower furnace close to the air inlet pipe, a slider is slidably installed in the mounting groove, one end of the slider is fixedly connected to the moving tube, a screw is rotatably installed in the mounting groove, the slider is threadedly connected to the screw, and a micro motor is provided on one side of the mounting groove to drive the screw to rotate.

[0015] Compared with the prior art, the utility model has the following beneficial technical effects:

[0016] 1. The utility model heats the air entering the upper furnace through the air intake pipe, hose, heating cylinder and electric heating rod, avoiding incomplete reaction caused by low air temperature, thereby improving the production utilization rate of zinc oxide;

[0017] 2. The utility model uses the vent pipe to allow the air in the vent pipe to gradually expand as the pipe extends when entering the upper furnace, thereby reducing the air flow rate, allowing the air in the upper furnace to flow evenly, allowing zinc to contact the air evenly, and improving the calcination effect. At the same time, the air intake of the air intake pipe is adjusted through the air inlet hole, mounting groove, sleeve, moving pipe, slider, screw, and micro motor, meeting the use requirements of the calcination equipment in zinc oxide production.

[0018] The utility model heats the air entering the upper furnace, avoiding insufficient and incomplete reaction caused by low air temperature, thereby improving the production utilization rate of zinc oxide; at the same time, the air in the upper furnace flows evenly, so that zinc and air are in uniform contact, the calcination effect is improved, and the air intake volume of the air intake pipe is adjusted, meeting the use requirements of the calcination equipment in the production of zinc oxide. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Provide a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 A schematic diagram of the internal structure of the middle and lower furnace of the utility model is given;

[0021] Figure 3 A schematic diagram of the front cross-sectional structure of the heating cylinder in the utility model is given;

[0022] Figure 4 Given Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0023] Figure numerals: 1, upper furnace; 2, lower furnace; 3, sealing cover; 4, telescopic tube; 5, connecting tube; 6, fixing rod; 7, buckle; 8, air pipe; 9, furnace door; 10, air outlet pipe; 11, air inlet pipe; 111, air inlet hole; 12, heating tube; 13, sleeve; 131, moving tube; 14, mounting groove; 141, micro motor; 142, screw; 143, slider; 15, hose; 16, electric heating rod; 17, conical block; 171, air inlet channel; 18, ventilation pipe. DETAILED DESCRIPTION

[0024] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0025] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0026] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] It should be noted that the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Example

[0031] like Figure 1-4 As shown, the utility model proposes an oxygen injection calcination equipment for zinc oxide production, comprising an upper furnace 1 and a lower furnace 2. The upper furnace 1 is used to calcine zinc material. The upper furnace 1 is fixedly connected to the top of the lower furnace 2. It also includes a telescopic pipe 4 and a connecting pipe 5 fixedly connected between the upper furnace 1 and the lower furnace 2. The lower furnace 2 is fixedly connected with an air inlet pipe 11 and an air outlet pipe 10.

[0032] Among them, a sealing cover 3 is provided on the top of the upper furnace 1, and buckles 7 are provided on both sides of the sealing cover 3. The buckles 7 are used to ensure that the sealing cover 3 and the upper furnace 1 are completely sealed. One end of the telescopic tube 4 passes through the sealing cover 3 and is connected with the inside of the upper furnace 1, and the other end of the telescopic tube 4 is connected with the connecting tube 5. The end of the connecting tube 5 away from the upper furnace 1 is connected with the lower furnace 2. The telescopic tube 4 and the connecting tube 5 transport the air generated during the calcination of pure zinc into the lower furnace 2.

[0033] In addition, an air pipe 8 is provided on the upper furnace 1, and a furnace door 9 is provided on one side of the upper furnace 1. The slag in the upper furnace 1 can be cleaned by opening the furnace door 9. A fixing rod 6 is fixedly installed on one side of the upper furnace 1 close to the connecting pipe 5, and the connecting pipe 5 and the fixing rod 6 are fixedly connected.

[0034] like Figure 2-3 As shown, a heating assembly for heating air is provided in the lower furnace 2, and the heating assembly includes a heating cylinder 12 fixedly installed in the lower furnace 2, an air inlet pipe 11 passes through the heating cylinder 12, and one end is fixedly connected with a hose 15, an electric heating rod 16 is provided in the heating cylinder 12, and the hose 15 is wound on the outer surface of the electric heating rod 16, and a conical block 17 is provided on the top of the heating cylinder 12. When the electric heating rod 16 is started, the hose 15 wound on the electric heating rod 16 is heated, so that the gas entering the hose 15 through the air inlet pipe 11 is preheated.

[0035] Among them, a vent pipe 18 with an inverted trapezoidal cross section is fixedly connected to the top of the conical block 17, and an air intake channel 171 is opened in the conical block 17. The bottom of the air intake channel 171 is connected to the hose 15, and the top of the air intake channel 171 is connected to the vent pipe 18. The top of the vent pipe 18 is connected to the upper furnace 1. The heated air enters the vent pipe 18 through the air intake channel 171, so that the air entering the vent pipe 18 gradually expands as the pipeline extends when entering the upper furnace, thereby reducing the air flow rate, so that the air in the upper furnace 1 flows evenly, so that zinc is in uniform contact with the air, and the calcination effect is improved.

[0036] like Figure 4 As shown, an adjusting component for adjusting the air intake amount of the air intake pipe 11 is fixedly installed on one side of the lower furnace 2, and the adjusting component includes a plurality of air intake holes 111 opened on the air intake pipe 11, and the air intake holes 111 can allow air to enter the air intake pipe 11. A sleeve 13 is provided on the part of the air intake pipe 11 located in the lower furnace 2, and a movable tube 131 is slidably installed in the sleeve 13. The movable tube 131 is slidably installed on the outer side of the air intake pipe 11, and a movable component for driving the movable tube 131 to move is provided on the lower furnace 2.

[0037] Among them, the moving component includes a mounting groove 14 fixedly installed on the side of the lower furnace 2 close to the air inlet pipe 11, a slider 143 is slidably installed in the mounting groove 14, one end of the slider 143 is fixedly connected to the moving tube 131, a screw 142 is rotatably installed in the mounting groove 14, the slider 143 and the screw 142 are threadedly connected, and a micro motor 141 for driving the screw 142 to rotate is provided on one side of the mounting groove 14. Starting the micro motor 141 makes the screw 142 rotate in the mounting groove 14, so that the slider 143 moves, thereby moving the moving tube 131 and blocking the air inlet hole 111 on the air inlet pipe 11, thereby realizing the adjustment of the amount of air entering the air inlet pipe 11, meeting the use requirements of the calcination equipment in the production of zinc oxide.

[0038] Working principle: In the working process of the utility model, the sealing cover 3 is opened by the buckle 7, pure zinc is added into the upper furnace 1, the sealing cover 3 is closed, the electric heating rod 16 is started, and the hose 15 wound on the electric heating rod 16 is heated, so that the gas entering the hose 15 through the air inlet pipe 11 is preheated, and the heated air enters the ventilation pipe 18 through the air inlet channel 171. When the air enters the ventilation pipe 18, the air gradually expands as the pipe extends when entering the upper furnace, thereby reducing the air flow rate, so that the air in the upper furnace 1 flows evenly, so that Zinc is uniformly contacted with air, thereby improving the calcination effect; when the air intake needs to be adjusted, the micro motor 141 is started to rotate the screw 142 in the mounting groove 14, so that the slider 143 threadedly connected to the screw 142 moves, thereby moving the moving tube 131 fixedly connected to the slider 143 moves to block the air intake hole 111 on the air intake pipe 11. At this time, the moving tube 131 slides in the sleeve 13, thereby realizing the adjustment of the air volume entering the air intake pipe 11, thereby meeting the use requirements of the calcination equipment in the production of zinc oxide.

[0039] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An oxygen injection calcination device for zinc oxide production, comprising an upper furnace (1) and a lower furnace (2), wherein the upper furnace (1) is fixedly connected to the top of the lower furnace (2), characterized in that: Also includes: A telescopic pipe (4) and a connecting pipe (5) fixedly connected between the upper furnace (1) and the lower furnace (2); An air inlet pipe (11) and an air outlet pipe (10) are fixedly connected to the lower furnace (2), and a heating component for heating air is provided in the lower furnace (2); A regulating component fixedly mounted on one side of the lower furnace (2) for regulating the air intake amount of the air intake pipe (11).

2. The oxygen injection calcination equipment for zinc oxide production according to claim 1, characterized in that: A sealing cover (3) is provided on the top of the upper furnace (1); one end of the telescopic tube (4) passes through the sealing cover (3) and is connected to the interior of the upper furnace (1); the other end of the telescopic tube (4) is connected to the connecting tube (5); and the end of the connecting tube (5) away from the upper furnace (1) is connected to the lower furnace (2).

3. The oxygen injection calcination equipment for zinc oxide production according to claim 2, characterized in that: The upper furnace (1) is provided with an air pipe (8), a furnace door (9) is provided on one side of the upper furnace (1), a fixing rod (6) is fixedly installed on one side of the upper furnace (1) close to the connecting pipe (5), and the connecting pipe (5) and the fixing rod (6) are fixedly connected.

4. The oxygen injection calcination equipment for zinc oxide production according to claim 1, characterized in that: The heating assembly comprises a heating cylinder (12) fixedly installed in the lower furnace (2); the air inlet pipe (11) passes through one end of the heating cylinder (12) and is fixedly connected with a hose (15); an electric heating rod (16) is arranged in the heating cylinder (12); the hose (15) is wound around the outer surface of the electric heating rod (16); and a conical block (17) is arranged on the top of the heating cylinder (12).

5. The oxygen injection calcination equipment for zinc oxide production according to claim 4, characterized in that: A ventilation pipe (18) having an inverted trapezoidal cross section is fixedly connected to the top of the conical block (17); an air intake passage (171) is provided in the conical block (17); the bottom of the air intake passage (171) is connected to the hose (15); the top of the air intake passage (171) is connected to the ventilation pipe (18); and the top end of the ventilation pipe (18) is connected to the upper furnace (1).

6. The oxygen injection calcination equipment for zinc oxide production according to claim 5, characterized in that: The regulating component comprises a plurality of groups of air inlet holes (111) provided on the air inlet pipe (11); a sleeve (13) is provided on a portion of the air inlet pipe (11) located in the lower furnace (2); a movable tube (131) is slidably installed in the sleeve (13); the movable tube (131) is slidably installed on the outer side of the air inlet pipe (11); and a movable component for driving the movable tube (131) to move is provided on the lower furnace (2).

7. The oxygen injection calcination equipment for zinc oxide production according to claim 6, characterized in that: The moving assembly comprises a mounting groove (14) fixedly mounted on a side of the lower furnace (2) close to the air inlet pipe (11); a slider (143) is slidably mounted in the mounting groove (14); one end of the slider (143) is fixedly connected to the moving pipe (131); a screw rod (142) is rotatably mounted in the mounting groove (14); the slider (143) is threadedly connected to the screw rod (142); and a micro motor (141) is provided on one side of the mounting groove (14) for driving the screw rod (142) to rotate.

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