Firework bright bead granulation kettle with grooves

Abstract

One or two or three or four or five or six grooves protruding towards an inner cavity of the granulation kettle are formed in the side wall of the granulation kettle, the protruding parts of the grooves are 3-20 mm higher than the inner wall of the granulation kettle, the outer contour lines of the protruding parts of the cross sections of the grooves are two intersecting straight lines, the outer contour lines of the protruding parts of the cross sections of the grooves are perpendicular to the straight lines, and the outer contour lines of the protruding parts of the cross sections of the grooves are perpendicular to the straight lines. The straight lines are in arc transition, the straight lines and the granulation kettle are in arc transition, and the orthographic projection of the central axis of the groove is a straight line or an Archimedes spiral. The device has the advantages that the structure is simple, the reliability is high, the quality and the number of products are greatly improved, potential safety hazards caused by manual auxiliary turning are completely eradicated, and the labor intensity of operators is relieved.

Description

Technical Field

[0001] The invention relates to a firework production device, in particular to a firework bright bead granulating kettle with grooves. Background Art

[0002] In the current production of fireworks bright beads, the inclined fireworks bright bead granulating kettle is constantly rotating, and the fireworks medicine is made into bright beads by friction. Since the friction is not strong, the ability of the granulating kettle to lift and turn the fireworks medicine is limited, resulting in a low yield of bright beads. For this reason, some manufacturers use manual assisted turning, but this poses a safety hazard. CN206974287U fireworks granulating and coating machine discloses another solution, that is, adding a stirring plate in the granulating kettle, which can improve the yield, but at the same time, some bright beads are broken. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a highly efficient firework bright bead granulation kettle with grooves.

[0004] The present invention adopts the following technical scheme.

[0005] A fireworks bright bead granulating kettle with grooves, wherein the side wall of the granulating kettle is provided with 1, 2, 3, 4, 5 or 6 grooves protruding toward the inner cavity of the granulating kettle, and the protruding parts of the grooves are 3 to 20 mm higher than the inner wall of the granulating kettle.

[0006] The outer contour line of the protruding part of the cross section of the groove is two intersecting straight lines, and there is an arc transition between the straight lines, and there is an arc transition between the straight lines and the granulating kettle.

[0007] The orthographic projection of the central axis of the groove is a straight line.

[0008] The orthographic projection of the central axis of the groove is an Archimedean spiral.

[0009] Compared with the prior art, the invention has the advantages of simple structure, high reliability, greatly improved product quality and quantity, eliminated the potential safety hazards of manual assisted turning, and reduced the labor intensity of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0011] Figure 2 for Figure 1 A-A schematic structural diagram of the cross-section. Implementation

[0012] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0013] like Figure 1-2As shown, a fireworks bright bead granulating kettle 1 with grooves has three grooves 2 evenly distributed on its side wall protruding into the inner cavity of the granulating kettle 1, the protruding part of the groove is 15 mm higher than the inner wall of the granulating kettle 1, and the orthographic projection of the central axis of the groove 2 is an Archimedean spiral.

[0014] The outer contour line of the protruding part of the cross section of the groove is two intersecting straight lines B3 and C4, there is an arc transition between the straight line B3 and the straight line C4, and there is an arc transition between the straight line B3 and the straight line C4 and the granulating kettle 1.

[0015] Comparative experiment: Experiment 1. A conventional pelletizing kettle was loaded with 70 kg of fireworks drug, and the material was discharged after 40 minutes of operation. After screening, 51.6 kg of 6 mm bright beads were obtained, with a yield rate of 73.7%.

[0016] Experiment 2. A conventional pelletizing kettle of the same size has three grooves 2 evenly distributed on its side wall, protruding toward the inner cavity of the pelletizing kettle. The protruding part of the groove is 15 mm higher than the inner wall of the pelletizing kettle. The orthographic projection of the central axis of the groove 2 is an Archimedean spiral. The outer contour of the protruding part of the cross section of the groove is two intersecting straight lines B3 and C4. There is an arc transition between the straight lines B3 and C4, and there is an arc transition between the straight lines B3 and C4 and the pelletizing kettle. The pelletizing kettle is loaded with 70 kg of fireworks medicine, works for 40 minutes, and then discharges the material. After screening, 62.4 kg of 6 mm bright beads are obtained, with a finished product rate of 89.1%, achieving a very unexpected effect, greatly improving productivity, and the bright beads are very compact and have a very smooth surface. This technology has played a significant role in the production of bright beads.

Claims

1. A firework bright bead granulation kettle with grooves, Features The side wall of the pelletizing kettle is provided with one, two, three, four, five or six grooves protruding toward the inner cavity of the pelletizing kettle, and the protruding parts of the grooves are 3-20 mm higher than the inner wall of the pelletizing kettle.

2. The firework bright bead granulation kettle with grooves according to claim 1, Features The outer contour line of the protruding part of the cross section of the groove is two intersecting straight lines, and there is an arc transition between the straight lines, and there is an arc transition between the straight lines and the granulating tank.

3. The firework bright bead granulation kettle with grooves according to claim 1, Features The orthographic projection of the central axis of the groove is a straight line.

4. The firework bright bead granulation kettle with grooves according to claim 1, Features The orthographic projection of the central axis of the groove is an Archimedean spiral.

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