Processing device for carbon oxygen powder for fireworks

Abstract

The utility model discloses a processing device for carbon-oxygen powder for fireworks. The processing device sequentially consists of a calcining furnace, a wet ball mill and a vacuum concentration tank, mixing the material at the discharge hole of the calcining furnace with a ball milling medium, and carrying out ball milling in a wet ball mill; a mixture of the ball-milled material and the ball-milling medium is fed into a feed port of a vacuum concentration tank, and a heating coil is arranged in the vacuum concentration tank; a vapor-state ball-milling medium outlet in the top of the vacuum concentration tank is connected with the top of the condenser through a demister and enters a receiving cavity in the bottom of the condenser through the middle of the condenser; an inner cavity of the condenser is connected with a vacuum generating mechanism. Particle materials not larger than 400 meshes can be formed safely, efficiently and reliably, so that carbon-oxygen powder materials suitable for fireworks and pyrotechnic compositions are obtained; reliable and efficient separation of ball milling media and materials is realized; the processing and manufacturing process is safe, efficient and environment-friendly; the prepared carbon-oxygen powder is not only suitable for firework pyrotechnic compositions, but also free of smoke, odor and slag during combustion.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of processing equipment for pyrotechnic composition of fireworks. BACKGROUND

[0002] In prior art, in order to reduce the setting-off smoke, part of the oxidizer of fireworks can use ammonium perchlorate. For example, cold light spray fireworks generally use ammonium perchlorate, single-base powder and titanium powder. However, the burning of ammonium perchlorate has a strong odor, which affects the viewing experience. We have developed a carbon-oxygen powder as an oxidizer, which can effectively replace ammonium perchlorate and be applied to fireworks pyrotechnic composition.

[0003] The carbon-oxygen powder mainly contains zirconium dioxide, which has the chemical formula ZrO2. It is a main oxide of zirconium, usually white, odorless and tasteless crystal, and hardly soluble in water, hydrochloric acid and dilute sulfuric acid. It is chemically inert, and has high melting point, high resistivity, high refractive index and low thermal expansion coefficient. Currently, it is mainly used as high-temperature resistant material, ceramic insulating material, ceramic light shielding agent and artificial drill manufacturing raw material. As an oxidizer for fireworks, it needs to be developed into a special processing equipment to reduce the particle size of the material. SUMMARY

[0004] To solve the above-mentioned drawbacks, the technical problem to be solved by the utility model is to provide a processing device for carbon-oxygen powder of fireworks pyrotechnic composition. To solve the above-mentioned technical problem, the utility model adopts the technical scheme of a processing device for carbon-oxygen powder of fireworks, characterized in that it is sequentially composed of a calcining furnace, a wet ball mill and a vacuum concentration tank. The material in the discharge port of the calcining furnace is mixed with the ball milling medium in the wet ball mill. After ball milling, the material and the ball milling medium mixture are sent into the feed port of the vacuum concentration tank. The vacuum concentration tank is provided with a heating coil, and the heating coil is connected with a steam supply mechanism. The bottom of the vacuum concentration tank is provided with a material outlet and a condensate outlet. The gaseous ball milling medium outlet at the top of the vacuum concentration tank is connected with a condenser through a defoamer. The gaseous ball milling medium passes through the middle part of the condenser and enters the receiving cavity at the bottom of the condenser. The middle part of the condenser is provided with a condensing pipeline, one end of which is connected with a cooling water supply mechanism, and the other end is provided with a cooling water outlet. The inner cavity of the condenser is connected with a vacuum generating mechanism.

[0005] Preferably, the particle size of the material after ball milling is not greater than 400 mesh.

[0006] Preferably, the ball milling medium is selected from water or kerosene.

[0007] Preferably, the vacuum concentration tank is provided with a stirring assembly.

[0008] Preferably, the bottom of the defoamer is connected with the vacuum concentration tank through a reflux tube.

[0009] Preferably, the preparation device further comprises a material air-drying mechanism, which is connected with the material outlet of the vacuum concentration tank. The material after removing the ball milling medium is air-dried.

[0010] The beneficial effects of the utility model lie in that the material is added with the ball milling medium for wet ball milling after calcination, which can safely, efficiently and reliably form the particle material not larger than 400 mesh, so as to obtain the carbon-oxygen powder material suitable for the firework pyrotechnic composition; and in the low-pressure environment in the vacuum concentration tank, the material is heated by the steam passing through the heating coil, so that the ball milling medium in the material is evaporated and condensed into liquid by the condenser, so as to realize reliable and efficient separation of the ball milling medium and the material; the processing and manufacturing process is safe, efficient and environmentally friendly; the carbon-oxygen powder prepared by the utility model is not only suitable for the firework pyrotechnic composition, but also has no smoke, no smell and no residue in combustion.

[0011] Of course, it is not necessary for any product implementing the utility model to achieve all the advantages mentioned above.

[0012] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by those skilled in the art of the technology belonging to the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0013] It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0014] In addition, the terms "first", "second", etc. are used only for descriptive purposes and do not connote or imply relative importance or an ordered or prioritized sequence thereof. Thus, use of "first", "second", etc. to describe a particular feature can mean that a total of at least two of the features are present. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

[0015] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0016] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0017] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 System configuration diagram of carbon-oxygen powder processing device for example;

[0019] Fig. 2 Structure schematic diagram of carbon-oxygen powder processing device for example.

[0020] Fig. 101. Calcining furnace; 102. Discharge port; 103. Elevator; 201. Wet ball mill; 202. Feed inlet; 203. Discharge port; 301. Vacuum concentration tank; 302. Thermometer; 303. Defoamer; 304. Cooling water outlet; 305. Condenser; 306. Cooling water inlet; 307. Pressure storage tank; 308. Receiving cavity; 309. Exhaust valve; 310. Condensate outlet; 311. Material outlet; 312. Steam inlet; 313. Feed inlet; 314. Reflux pipe.

[0021] 313. Feed inlet; 314. Reflux pipe. DETAILED DESCRIPTION

[0022] Referring to the drawings Figs. 1-2 , reflecting a specific structure of the utility model. The device for processing carbon-oxygen powder for fireworks is sequentially composed of a calcining furnace 101, a wet ball mill 201 and a vacuum concentration tank 301.

[0023] The material is sent into the calcining furnace 101 by the elevator 103, calcined, and then the material discharged from the discharge port 102 enters the feed inlet 202 of the ball mill 201, mixed with the ball mill medium (such as water or kerosene) in the wet ball mill 201 for ball milling, and the particle size of the material after ball milling is not greater than 400 mesh.

[0024] The mixture of the material after ball milling and the ball mill medium is sent from the discharge port 203 into the feed inlet 313 of the vacuum concentration tank 301. The heating coil for heating the material in the vacuum concentration tank 301 is connected with a steam supply mechanism (not shown in the figure) through the steam inlet 312. The vacuum concentration tank is also provided with a stirring assembly for stirring the material in the tank, a thermometer 302 and an exhaust valve 309.

[0025] The bottom of the vacuum concentration tank 301 is provided with a material outlet 311 and a condensate outlet 310.

[0026] The vaporized ball mill medium under heating is discharged from the top of the vacuum concentration tank 301, enters the top of the condenser 305 through the defoamer 303, and the vaporized ball mill medium is separated from the liquid in the defoamer 303, and the liquid collected by the defoamer is returned to the vacuum concentration tank 301 through the reflux pipe 314. The waste of entrained material is avoided, and the purity of the recovered ball mill medium is improved.

[0027] The vaporized ball mill medium descending from the top of the condenser 305 enters the receiving cavity 308 at the bottom of the condenser 305 through the middle part of the condenser 305. The middle part of the condenser 305 is provided with a condensing pipe, one end of the condensing pipe is connected with a cooling water supply mechanism (not shown in the figure) through the cooling water inlet 306, and the other end of the condensing pipe is provided with a cooling water outlet 304. The vaporized ball mill medium is condensed into liquid for recycling.

[0028] The inner cavity of the condenser 305 is connected to a vacuum pump (not shown in the figure) through the pressure tank 307. Since the condenser 305 is connected to the inner cavity of the vacuum concentration tank 301, a low-pressure environment can be maintained in the condenser 305 and the vacuum concentration tank 301, so as to reduce the boiling point of the ball milling medium and make it evaporate rapidly.

[0029] The technical scheme has the advantages that the manufacturing process is safe, efficient and environmentally friendly. The material is mixed with the ball milling medium after calcination, ground into a particle material not greater than 400 mesh by wet ball milling, and then evaporated and condensed into a liquid by heating the disc pipe in the low-pressure environment of the vacuum concentration tank, so as to realize efficient separation of the ball milling medium and the material. The material after removing the ball milling medium is discharged from the material outlet 311 of the vacuum concentration tank 301, and in the example, the material is also dried by the air drying mechanism. The carbon-oxygen powder prepared by the method is suitable for fireworks and firecracker agents, and has no smoke, odor and residue during combustion.

[0030] The embodiments of the disclosed utility model are only used for helping to describe the utility model. The embodiments do not describe all the details and limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and combines the drawings to specifically describe these embodiments, so as to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. However, the utility model can be implemented in many other ways different from those described herein, and the persons skilled in the art can make similar improvements without departing from the connotation of the utility model. Therefore, the utility model is limited by the claims and the entire scope and equivalents thereof, and is not limited by the disclosed specific embodiments.

Claims

1. A processing apparatus for carbon-oxygen powder used in fireworks, characterized in that, The system consists of a calcining furnace, a wet ball mill, and a vacuum concentrator. Material from the calcining furnace outlet is mixed with grinding media and milled in the wet ball mill. The milled material and grinding media mixture is then fed into the inlet of the vacuum concentrator. The vacuum concentrator is equipped with a heating coil connected to a steam supply mechanism. The bottom of the vacuum concentrator has a material outlet and a condensate outlet. The vaporized grinding media outlet at the top of the vacuum concentrator is connected to the top of the condenser via a demister. The vaporized grinding media enters the receiving chamber at the bottom of the condenser through the middle of the condenser. A condensation pipe is located in the middle of the condenser, with one end connected to a cooling water supply mechanism and the other end having a cooling water outlet. A vacuum generating mechanism is connected to the inner cavity of the condenser.

2. The apparatus for processing carbon-oxygen powder for fireworks as described in claim 1, characterized in that, The particle size of the material after ball milling is no greater than 400 mesh.

3. The apparatus for processing carbon-oxygen powder for fireworks as described in claim 1, characterized in that, The milling media are selected from water or kerosene.

4. The apparatus for processing carbon-oxygen powder for fireworks as described in claim 1, characterized in that, The vacuum concentration tank is equipped with a stirring assembly.

5. The apparatus for processing carbon-oxygen powder for fireworks as described in claim 1, characterized in that, The bottom of the demister is connected to the vacuum concentration tank via a return pipe.

6. The apparatus for processing carbon-oxygen powder for fireworks as described in claim 1, characterized in that, The preparation apparatus also includes a material drying mechanism, which is connected to the material outlet of the vacuum concentration tank.

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