Oxidizing furnace for zinc oxide production

Abstract

The utility model discloses a zinc oxide production oxidizing furnace, and belongs to the technical field of zinc oxide production equipment. Comprising a base, supporting rods are symmetrically and fixedly arranged on the upper surface of the base, a cooling cylinder is arranged on the upper portion of the base, connecting plates A are symmetrically arranged on the two sides of the upper portion of the outer wall of the cooling cylinder, and the upper ends of the supporting rods are fixedly connected with the connecting plates A. The cooling cylinder is arranged on the upper portion of the base in a suspended mode through the supporting rods. Connecting plates B are symmetrically arranged on the two sides of the upper portion of the outer wall of the heating furnace, piston rods of the hydraulic oil cylinders are fixedly connected with the connecting plates B. The heating furnace is lifted through the hydraulic oil cylinders, so that the opening portion of the heating furnace and the bottom of the cooling cylinder are buckled and sealed. After the technical scheme is adopted, compared with the prior art, the utility model has the following advantages: after the heating furnace heats and melts a zinc ingot to generate zinc steam, airflow blown in by the air blower forms vortex by utilizing the cyclone tube, and oxygen in the airflow is fully combined with the zinc steam to generate zinc oxide particles; and the zinc oxide particles are discharged out of the cooling cylinder through vortex airflow. The airflow vortex can accelerate combination of zinc steam and oxygen in air, so that generation of zinc oxide particles is facilitated, and the production efficiency of zinc oxide is improved. In addition, zinc steam is placed in the middle of the cyclone tube through airflow vortex, generated zinc oxide particles are prevented from being attached to the inner wall of the cyclone tube, and then waste of zinc oxide is avoided.

Description

Technical Field

[0001] The utility model relates to an oxidation furnace for producing zinc oxide, belonging to the technical field of zinc oxide production. Background Art

[0002] Zinc oxide is an oxide of zinc. It is insoluble in water but soluble in acid and strong alkali. It is a white solid, also known as zinc white. It 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, adhesives, etc. There are many preparation methods, one of which is: using zinc ingots as raw materials, heating them at high temperatures to form zinc vapor, and oxidizing the zinc vapor with oxygen to obtain zinc oxide. In the above preparation process, a heating furnace is required to oxidize and melt the raw materials at high temperatures.

[0003] At present, most of the heating furnaces used for zinc oxide production on the market have the following shortcomings: zinc vapor will adhere to the furnace wall after combining with oxygen in the furnace to produce zinc oxide, resulting in waste of zinc oxide products. In addition, simply using high temperature to heat zinc ingots to produce zinc vapor, the upward movement of zinc vapor only uses thermal convection, resulting in slow movement of zinc vapor and inability to quickly combine with oxygen, which in turn results in low zinc oxide production efficiency.

[0004] In summary, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a zinc oxide production oxidation furnace which can effectively prevent zinc oxide from adhering to the inner wall of the furnace, avoid the waste of zinc oxide and accelerate the production efficiency of zinc oxide in view of the above shortcomings.

[0006] An optimized solution, a zinc oxide production oxidation furnace, comprising a base, a support rod symmetrically fixedly arranged on the upper surface of the base, a cooling cylinder arranged on the upper part of the base, connecting plates A symmetrically arranged on both sides of the upper part of the outer wall of the cooling cylinder, the upper end of the support rod is fixedly connected to the connecting plate A, and the cooling cylinder is suspended on the upper part of the base through the support rod;

[0007] Hydraulic cylinders are symmetrically provided on both sides of the outer wall of the cooling cylinder, a heating furnace is provided on the upper part of the base, and connecting plates B are symmetrically provided on both sides of the upper part of the outer wall of the heating furnace. The piston rod of the hydraulic cylinder is fixedly connected to the connecting plate B. The heating furnace is lifted by the hydraulic cylinder so that the mouth of the heating furnace is buckled and closed with the bottom of the cooling cylinder.

[0008] Furthermore, the mouth of the heating furnace is provided with a closing ring, which can be inserted and closed at the bottom of the inner cavity of the cooling cylinder.

[0009] Furthermore, the inner cavity of the cooling cylinder is provided with a cyclone tube, which is a truncated cone-shaped tube body structure. The large-diameter mouth of the cyclone tube is arranged at the bottom of the cooling cylinder, and the bottom side wall of the cooling cylinder is sealed with the outer wall of the large-diameter mouth of the cyclone tube.

[0010] Furthermore, the small-diameter opening of the cyclone tube is arranged through the upper part of the cooling cylinder, and the upper part of the cooling cylinder is provided with a discharge connecting pipe.

[0011] Furthermore, a blower is fixedly provided on the upper part of any one of the two connecting plates A, the blower is connected to an air outlet pipe, and the end of the air outlet pipe is connected to the bottom side of the cyclone tube.

[0012] Furthermore, an air guide box is provided at one side of the bottom of the inner cavity of the cyclone tube, and the air guide box is connected to the end of the air outlet pipe.

[0013] Furthermore, the mouth of the air guide box is horizontally arranged in the inner cavity of the cyclone tube, and the mouth of the air guide box is provided with an air guide plate, one side of the air guide plate is fixedly arranged on the side of the air guide box away from the inner wall of the cyclone tube, and the other side of the air guide plate is inclined toward the inner wall of the cyclone tube.

[0014] Furthermore, a cooling chamber is provided between the cooling cylinder and the cyclone tube, and the cooling chamber is filled with cooling water.

[0015] Furthermore, the upper side wall of the cooling cylinder is connected to a water outlet pipe, the lower side wall of the cooling cylinder is connected to a water inlet pipe, and the water outlet pipe and the water inlet pipe are connected to the cooling chamber.

[0016] Compared with the prior art, the utility model has the following advantages after adopting the above technical solution:

[0017] After the heating furnace heats the zinc ingot to melt and generate zinc vapor, the airflow blown in by the blower is vortexed by the cyclone tube. After the oxygen in the airflow is fully combined with the zinc vapor to generate zinc oxide particles, the zinc oxide particles are discharged from the cooling cylinder through the vortex airflow. The airflow vortex can accelerate the combination of zinc vapor and oxygen in the air, thereby facilitating the generation of zinc oxide particles, thereby improving the production efficiency of zinc oxide. In addition, the airflow vortex places the zinc vapor in the middle of the cyclone tube, preventing the generated zinc oxide particles from adhering to the inner wall of the cyclone tube, thereby avoiding the waste of zinc oxide. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the zinc oxide production oxidation furnace of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the oxidation furnace for producing zinc oxide of the utility model;

[0020] Figure 3 yes Figure 1A schematic diagram of the enlarged structure of local A;

[0021] In the figure, 1-base, 2-support rod, 3-cooling cylinder, 4-connecting plate A, 5-hydraulic cylinder, 6-heating furnace, 7-connecting plate B, 8-closing ring, 9-cyclone tube, 10-discharging connecting pipe, 11-blower, 12-air outlet pipe, 13-air guide box, 14-air guide plate, 15-cooling chamber, 16-water outlet pipe, 17-water inlet pipe. DETAILED DESCRIPTION

[0022] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "top surface", "bottom surface" and the like indicate positions or positional relationships based on the positions or positional relationships 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 positions or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] Examples, such as Figure 1 , 2 As shown in FIG. 3 , the utility model provides an oxidation furnace for zinc oxide production, comprising a base 1, a support rod 2 is symmetrically fixedly arranged on the upper surface of the base 1, a cooling cylinder 3 is arranged on the upper part of the base 1, and connecting plates A4 are symmetrically arranged on both sides of the upper part of the outer wall of the cooling cylinder 3, the upper end of the support rod 2 is fixedly connected to the connecting plate A4, and the cooling cylinder 3 is suspended on the upper part of the base 1 through the support rod 2;

[0026] Hydraulic cylinders 5 are symmetrically provided on both sides of the outer wall of the cooling cylinder 3, a heating furnace 6 is provided on the upper part of the base 1, and connecting plates B7 are symmetrically provided on both sides of the upper part of the outer wall of the heating furnace 6. The piston rod of the hydraulic cylinder 5 is fixedly connected to the connecting plate B7. The heating furnace 6 is lifted by the hydraulic cylinder 5 so that the mouth of the heating furnace 6 is buckled and closed with the bottom of the cooling cylinder 3.

[0027] The mouth of the heating furnace 6 is provided with a sealing ring 8 , which can be inserted and sealed at the bottom of the inner cavity of the cooling cylinder 3 .

[0028] The inner cavity of the cooling cylinder 3 is provided with a cyclone tube 9, which is a truncated cone-shaped tube structure. The large-diameter mouth of the cyclone tube 9 is arranged at the bottom of the cooling cylinder 3, and the bottom side wall of the cooling cylinder 3 and the outer wall of the large-diameter mouth of the cyclone tube 9 are sealed.

[0029] The small-diameter opening of the cyclone tube 9 is penetrated and arranged at the upper part of the cooling cylinder 3 , and a discharge connecting pipe 10 is arranged at the upper part of the cooling cylinder 3 .

[0030] A blower 11 is fixedly provided on the upper part of any one of the two connecting plates A4 , and the blower 11 is connected to an air outlet pipe 12 , and the end of the air outlet pipe 12 is connected to the bottom side of the cyclone tube 9 .

[0031] An air guide box 13 is provided at one side of the bottom of the inner cavity of the cyclone tube 9 , and the air guide box 13 is connected to the end of the air outlet pipe 12 .

[0032] The mouth of the air guide box 13 is horizontally arranged in the inner cavity of the cyclone tube 9, and the mouth of the air guide box 13 is provided with an air guide plate 14. One side of the air guide plate 14 is fixedly arranged on the side of the air guide box 13 away from the inner wall of the cyclone tube 9, and the other side of the air guide plate 14 is inclined toward the inner wall of the cyclone tube 9.

[0033] A cooling chamber 15 is provided between the cooling cylinder 3 and the cyclone tube 9, and the cooling chamber 15 is filled with cooling water.

[0034] The upper side wall of the cooling cylinder 3 is connected with a water outlet pipe 16 , and the lower side wall of the cooling cylinder 3 is connected with a water inlet pipe 17 . The water outlet pipe 16 and the water inlet pipe 17 are connected with the cooling chamber 15 .

[0035] The working principle of this utility model:

[0036] The zinc ingot is collected and placed in the heating furnace 6, and then the hydraulic cylinder 5 is started. The hydraulic cylinder 5 lifts the heating furnace 6, and the closing ring 8 of the heating furnace 6 is inserted into the bottom of the inner cavity of the cooling cylinder 3, so that the heating furnace 6 and the cooling cylinder 3 are buckled. The heating furnace 6 is powered on and heated to melt the zinc ingot and generate zinc vapor. The blower 11 passes air into the cyclone tube 9 through the outlet pipe 12. The air is guided by the air guide box 13 and the air guide plate 14, so that the air flows upward along the inner wall of the cyclone tube 9, thereby driving the zinc vapor to combine with the oxygen in the air to produce zinc oxide particles, and the flowing air is used to discharge the zinc oxide particles through the discharge connection pipe 10. The discharge connection pipe 10 is connected to a zinc oxide collection device, and the staff collects zinc oxide through the zinc oxide collection device. In addition, cooling water enters the cooling chamber 15 from the water inlet pipe 17 and is discharged from the water outlet pipe 16 to form circulating cooling water. The cooling water cools the incoming air and accelerates the cooling of the zinc oxide particles.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that an 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 article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the article or device including the above elements.

[0038] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. Zinc oxide production oxidation furnace, characterized by: The cooling device comprises a base (1), wherein support rods (2) are symmetrically fixedly arranged on the upper surface of the base (1), a cooling cylinder (3) is arranged on the upper part of the base (1), connecting plates A (4) are symmetrically arranged on both sides of the upper part of the outer wall of the cooling cylinder (3), the upper end of the support rod (2) is fixedly connected to the connecting plate A (4), and the cooling cylinder (3) is suspended on the upper part of the base (1) through the support rod (2); Hydraulic cylinders (5) are symmetrically provided on both sides of the outer wall of the cooling cylinder (3); a heating furnace (6) is provided on the upper part of the base (1); connecting plates B (7) are symmetrically provided on both sides of the upper part of the outer wall of the heating furnace (6); a piston rod of the hydraulic cylinder (5) is fixedly connected to the connecting plate B (7); the heating furnace (6) is lifted by the hydraulic cylinder (5), so that the mouth of the heating furnace (6) is locked and sealed with the bottom of the cooling cylinder (3).

2. The zinc oxide production oxidation furnace according to claim 1, characterized in that: The mouth of the heating furnace (6) is provided with a sealing ring (8), and the sealing ring (8) can be inserted and sealed at the bottom of the inner cavity of the cooling cylinder (3).

3. The zinc oxide production oxidation furnace according to claim 1, characterized in that: The inner cavity of the cooling cylinder (3) is provided with a cyclone tube (9), which is a truncated cone-shaped tube structure. The large-diameter opening of the cyclone tube (9) is arranged at the bottom of the cooling cylinder (3), and the bottom side wall of the cooling cylinder (3) and the outer wall of the large-diameter opening of the cyclone tube (9) are sealed.

4. The zinc oxide production oxidation furnace according to claim 3, characterized in that: The small-diameter opening of the cyclone tube (9) is arranged to penetrate the upper part of the cooling cylinder (3), and the upper part of the cooling cylinder (3) is provided with a discharge connecting pipe (10).

5. The zinc oxide production oxidation furnace according to claim 3, characterized in that: A blower (11) is fixedly provided on the upper part of any one of the two connecting plates A (4), the blower (11) is connected to an air outlet pipe (12), and the end of the air outlet pipe (12) is connected to the bottom side of the cyclone pipe (9).

6. The zinc oxide production oxidation furnace according to claim 5, characterized in that: An air guide box (13) is provided at one side of the bottom of the inner cavity of the cyclone tube (9), and the air guide box (13) is connected to the end of the air outlet pipe (12).

7. The zinc oxide production oxidation furnace according to claim 6, characterized in that: The mouth of the air guide box (13) is transversely arranged in the inner cavity of the cyclone tube (9), and the mouth of the air guide box (13) is provided with an air guide plate (14), one side of the air guide plate (14) is fixedly arranged on a side of the air guide box (13) away from the inner wall of the cyclone tube (9), and the other side of the air guide plate (14) is inclined toward the inner wall of the cyclone tube (9).

8. The zinc oxide production oxidation furnace according to claim 3, characterized in that: A cooling chamber (15) is provided between the cooling cylinder (3) and the cyclone tube (9), and the cooling chamber (15) is filled with cooling water.

9. The zinc oxide production oxidation furnace according to claim 8, characterized in that: The upper side wall of the cooling cylinder (3) is connected to a water outlet pipe (16), and the lower side wall of the cooling cylinder (3) is connected to a water inlet pipe (17). The water outlet pipe (16) and the water inlet pipe (17) are connected to the cooling chamber (15).

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