Spraying device for drying dendrobium officinale composite particles

Abstract

The invention discloses a spraying device for drying dendrobium officinale composite particles, and particularly relates to the field of spraying devices or atomization devices, the spraying device comprises a drying material barrel, a spraying nozzle and an accelerating spraying mechanism; the jet nozzle is installed at the open end of the drying material cylinder in a sealed mode. The jet nozzle comprises a middle hose section; the accelerated material spraying mechanism comprises an extrusion plate, a crank push rod, a transmission plate, a driving rod and a connecting rod; one end of the connecting rod is rotationally connected with the driving rod, and the other end is rotationally connected with the transmission plate; one end of the crank push rod is rotationally connected with the transmission plate, and the other end is provided with a positioning groove matched with the outer side end of the jet nozzle in shape; a hole for the jet nozzle to penetrate through is formed in the extrusion plate, and when extrusion is accelerated, the middle hose section makes extrusion contact with the side wall of the hole. According to the spraying device, by optimizing the matched design of the accelerated spraying mechanism and the spraying nozzle, the uniformity and the drying effect of material conveying can be improved, and the effect of preventing the dendrobium officinale composite extracting solution from crystallizing at the spraying nozzle is also achieved.

Description

Technical Field

[0001] The present application relates to the field of spray devices or atomization devices, and in particular to a spray device for drying composite particles of Dendrobium officinale. Background Art

[0002] The Chinese invention patent application number is 2025101072096, which discloses a spray dryer for the preparation of mugwort extract, which mainly realizes the preheating of mugwort liquid to improve the fluidity of the mugwort extract, so that the hot air entrains the mugwort liquid and sprays it in an inclined state, effectively solving the problem of mugwort extract sticking to the wall.

[0003] As for Dendrobium officinale, its extract itself has a certain viscosity. When preparing particles, the following problems are likely to occur: 1. There are unfiltered large particles of impurities or viscous substances in the solution, which are easy to accumulate and crystallize at the nozzle; 2. The material concentration is too high, resulting in crystallization inside the nozzle. The above two defects will cause the nozzle to be blocked in actual use. At present, the hot air introduced into the material barrel mostly adopts a spiral air intake method, and the material particles do not stick to the wall obviously. As for the unfiltered large particles of impurities in the solution, the only way to prevent it is to increase the number of filtration times.

[0004] However, due to the viscosity of the Dendrobium officinale extract, it is easy to crystallize immediately after residual heat at the nozzle, causing nozzle clogging. At the same time, if the extract is diluted to reduce viscosity, the energy consumption of spray drying will increase and the production efficiency will be greatly reduced. Summary of the invention

[0005] The present invention provides a spraying device for drying composite particles of Dendrobium officinale. The spraying device can improve the uniformity of material transportation and the drying effect by optimizing the coordinated design of the accelerating spraying mechanism and the spraying nozzle, and also prevents the composite extract of Dendrobium officinale from crystallizing at the spraying nozzle.

[0006] The objective of the present invention is achieved through the following technical solutions: The invention discloses a spraying device for drying composite particles of Dendrobium officinale, comprising a drying material barrel, a spraying nozzle and an accelerating spraying mechanism; the spraying nozzle is sealed and installed at the open end of the drying material barrel; the spraying nozzle comprises a middle hose section; the accelerating spraying mechanism comprises an extrusion plate, a crank push rod, a transmission plate, a driving rod and a connecting rod; one end of the connecting rod is rotatably connected to the driving rod, and the other end is rotatably connected to the transmission plate; one end of the crank push rod is rotatably connected to the transmission plate, and the other end is provided with a positioning groove adapted to the shape of the outer end of the spraying nozzle; the extrusion plate is provided with a hole for the spraying nozzle to pass through, and during accelerated extrusion, the middle hose section is in extrusion contact with the side wall of the hole.

[0007] Among them, the advantage of the accelerated spraying mechanism is that it can apply pressure to the middle hose section, so that the Dendrobium officinale extract can be accelerated when passing through the nozzle, thereby avoiding crystallization at the nozzle and causing nozzle clogging.

[0008] Preferably, the accelerated spraying mechanism also includes a slide rail frame and a fixed rod; the end of the transmission plate facing away from the crank push rod is slidably connected to the slide rail frame, and accordingly, a slide groove is provided on the slide rail frame; the fixed rod is fixed to the lower end of the slide rail frame, and the free end of the fixed rod is fixed to the extrusion plate.

[0009] Preferably, the accelerated injection mechanism further comprises an elastic spring, one end of which is fixed to the end of the crank push rod, and the other end of which is fixed to the transmission plate.

[0010] Preferably, the spraying device further comprises a reciprocating drive mechanism; the reciprocating drive mechanism comprises a drive motor, a transmission rack, a transmission wheel, a return spring and a sliding seat; The output end of the driving motor is fixed to the middle of the transmission wheel, and a transmission tooth is provided on the half circumference of the side end of the transmission wheel, and the transmission tooth and the transmission rack are meshed and connected for transmission; the slide rail frame and the sliding seat are fixed, and the sliding seat is provided with a through hole adapted for the sliding passage of the driving rod, and the free end of the driving rod is fixed to the transmission rack; the reset spring is sleeved on the driving rod, and one end of the reset spring is fixed to the sliding seat, and the other end is fixed to the transmission rack.

[0011] The reciprocating drive mechanism can periodically drive the crank push rod to clamp the middle hose section and move toward the extrusion plate, thereby periodically extruding the material ejected from the nozzle to accelerate the material passing through the nozzle.

[0012] Preferably, the spray nozzle comprises an upper clamping and fixing section and a lower liquid outlet section, the upper end of the middle hose section is fixed to the upper clamping and fixing section, and the lower end is fixed to the lower liquid outlet section.

[0013] Preferably, the middle hose section is provided with a sliding positioning groove, and the two side edges of the hole are in abutment contact with the sliding positioning groove.

[0014] Preferably, the middle hose section is made of a tough material.

[0015] Preferably, the spraying device further comprises a fixing frame, the drying material cylinder is fixedly mounted on the fixing frame, a fixing plate is provided at a side end of the fixing frame, and the sliding seat is fixed to the fixing plate via a fixing connecting rod.

[0016] Preferably, a material outlet is provided at the lower end of the drying material cylinder.

[0017] Preferably, the upper end of the injection nozzle is connected to a material pipe, and the side end of the injection nozzle is connected to a hot air pipe.

[0018] Compared with the prior art, the advantages or beneficial effects of the technical solution of the present application include: 1. By squeezing the middle hose section, the material is forced to flow to avoid the crystallization of the Dendrobium officinale extract with high viscosity when passing through the nozzle, which may cause the nozzle to be blocked.

[0019] 2. By increasing the injection speed of the Dendrobium officinale extract, it can be made closer to the wind speed of the hot air, so as to prevent the Dendrobium officinale extract entering the material barrel from being blown to the wall of the material barrel by the hot air with a higher speed.

[0020] 3. By shortening the time for the Dendrobium officinale extract to pass through the nozzle, there is no need to dilute the concentration of the Dendrobium officinale extract, which can greatly improve production efficiency and greatly reduce energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the injection device (front view); Figure 2 It is a schematic diagram of the three-dimensional structure of the injection device (reverse side); Figure 3 It is a three-dimensional structural diagram of the accelerating spraying mechanism; Figure 4 It is a schematic diagram of the cross-sectional structure of the accelerated injection mechanism; Figure 5 It is a schematic diagram of the motion state of the accelerated injection mechanism (without extruding material); Figure 6 Schematic diagram of the motion state of the accelerated injection mechanism (extruding material).

[0022] In the figure: 1, material pipe, 2, injection nozzle, 3, positioning groove, 4, transmission plate, 5, elastic spring, 6, crank push rod, 7, connecting rod, 8, fixed rod, 9, driving rod, 10, slide rail frame, 11, sliding seat, 13, reset spring, 14, transmission rack, 15, transmission wheel, 16, driving motor, 17, extrusion plate, 19, hot air pipe, 20, fixed plate, 21, fixed connecting rod, 22, fixed frame, 23, drying material barrel, 24, material outlet, 25, transmission gear, 26, upper clamping fixed section, 27, middle hose section, 28, lower liquid outlet section. DETAILED DESCRIPTION

[0023] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present application applies technical means to solve technical problems and achieve corresponding technical effects can be fully understood and implemented accordingly. The embodiments of the present application and the various features in the embodiments can be combined with each other without conflict, and the technical solutions formed are all within the protection scope of the present application.

[0024] It should be clear that the embodiments described below are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by technicians in the relevant field without making creative work are within the scope of protection of the present application.

[0025] Embodiment 1: This embodiment describes the scheme of the injection device in detail: like Figure 1-Figure 6 As shown, the spraying device for drying the composite particles of Dendrobium officinale includes a drying material barrel 23, a spraying nozzle 2 and an accelerating spraying mechanism; The injection nozzle 2 is sealed and installed at the open end of the drying material barrel 23; the injection nozzle 2 includes a middle hose section 27; the accelerated spraying mechanism includes an extrusion plate 17, a crank push rod 6, a transmission plate 4, a driving rod 9 and a connecting rod 7; one end of the connecting rod 7 is rotatably connected to the driving rod 9, and the other end is rotatably connected to the transmission plate 4; one end of the crank push rod 6 is rotatably connected to the transmission plate 4, and the other end is provided with a positioning groove 3 adapted to the shape of the outer end of the injection nozzle 2; the extrusion plate 17 is provided with a hole for the injection nozzle 2 to pass through, and when accelerating extrusion, the middle hose section 27 is squeezed and contacted with the side wall of the hole.

[0026] The accelerated spraying mechanism also includes a slide rail frame 10, an elastic spring 5 and a fixed rod 8; one end of the transmission plate 4 facing away from the crank push rod 6 is slidably connected to the slide rail frame 10, and accordingly, a slide groove is provided on the slide rail frame 10; the fixed rod 8 is fixed to the lower end of the slide rail frame 10, and the free end of the fixed rod 8 is fixed to the extrusion plate 17. One end of the elastic spring 5 is fixed to the end of the crank push rod 6, and the other end is fixed to the transmission plate 4.

[0027] The spray nozzle 2 comprises an upper clamping and fixing section 26 and a lower liquid outlet section 28. The upper end of the middle hose section 27 is fixed to the upper clamping and fixing section 26, and the lower end is fixed to the lower liquid outlet section 28. The middle hose section 27 is provided with a sliding positioning groove, and the two side edges of the hole abut against the sliding positioning groove.

[0028] The connection relationship and working principle of the components of the accelerated spraying mechanism are as follows: like Figure 3-Figure 4 As shown, when the driving rod 9 drives the ends of the connecting rods 7 on both sides to move toward the side of the injection nozzle, the crank push rods 6 on both sides can be driven to move toward the injection nozzle 2 until the injection nozzle 2 is clamped. In the above process, while the driving rod clamps the side ends of the injection nozzle 2, it can actually drive the injection nozzle 2 to move toward the gap of the hole on the extrusion plate 17 ( Figure 3 28 ), so that the middle hose section 27 contacts the hole wall when moving, causing extrusion to squeeze out the Dendrobium officinale extract. In the above process, the Dendrobium officinale extract can be accelerated to pass through the lower liquid outlet section 28 after extrusion to prevent it from crystallizing at the lower liquid outlet section 28. Please refer to the state diagram of the crank push rod 6 contacting the injection nozzle 2 and driving it to move Figure 5-Figure 6shown.

[0029] The middle hose section 27 in this embodiment is made of a tough material, specifically a silicone rubber material, which has good toughness and can be deformed when squeezed. At the same time, the material is resistant to high temperatures and can avoid damage in a hot air environment for a long time.

[0030] Embodiment 2: Based on Embodiment 1, this embodiment discloses the contents of the reciprocating drive mechanism, specifically: The reciprocating drive mechanism includes a drive motor 16, a transmission rack 14, a transmission wheel 15, a reset spring 13 and a sliding seat 11; the output end of the drive motor 16 is fixed to the middle of the transmission wheel 15, and a transmission tooth 25 is provided on the side end half of the transmission wheel 15, and the transmission tooth 25 is meshed and connected with the transmission rack 14 for transmission; the slide rail frame 10 is fixed to the sliding seat 11, and the sliding seat 11 is provided with a through hole adapted for the sliding penetration of the drive rod 9, and the free end of the drive rod 9 is fixed to the transmission rack 14; the reset spring 13 is sleeved on the drive rod 9, and one end of the reset spring 13 is fixed to the sliding seat 11, and the other end is fixed to the transmission rack 14.

[0031] The components and working principle of the reciprocating drive mechanism are as follows: like Figure 3 As shown, when the output end of the driving motor 16 and the transmission wheel 15 are fixed, the two move synchronously. Since the transmission wheel 15 and the transmission rack 14 are meshed and transmitted, when the half-circle gear on the transmission wheel 15 and the transmission rack 14 are transmitted, the transmission rack 14 can be driven to move forward ( Figure 3 ), thereby driving the injection nozzle 2 to form extrusion with the hole wall on the extrusion plate 17.

[0032] When the transmission wheel 15 and the transmission rack 14 are disengaged from each other, the crank push rod 6 will return to its original position due to the action of the return spring 13 until the transmission wheel 15 and the transmission rack 14 are in transmission in the next cycle.

[0033] Embodiment 3: Based on Embodiment 1 and Embodiment 2, this embodiment provides a supplementary description of the remaining fixed structures of the injection device: The spraying device also includes a fixed frame 22, a drying material barrel 23 is fixedly mounted on the fixed frame 22, a fixed plate 20 is provided at the side end of the fixed frame 22, and the sliding seat 11 is fixed to the fixed plate 20 through a fixed connecting rod 21. A material outlet 24 is provided at the lower end of the drying material barrel 23. The upper end of the spray nozzle 2 is connected to the material pipe 1, and the side end of the spray nozzle 2 is connected to the hot air pipe 19.

Claims

1. A spraying device for drying composite particles of Dendrobium officinale, characterized in that: It comprises a drying material barrel (23), a spray nozzle (2) and an accelerating spraying mechanism; The injection nozzle (2) is sealed and mounted on the open end of the drying material barrel (23); the injection nozzle (2) comprises a middle hose section (27); The accelerating spraying mechanism comprises an extrusion plate (17), a crank push rod (6), a transmission plate (4), a driving rod (9) and a connecting rod (7); One end of the connecting rod (7) is rotatably connected to the driving rod (9), and the other end is rotatably connected to the transmission plate (4); one end of the crank push rod (6) is rotatably connected to the transmission plate (4), and the other end is provided with a positioning groove (3) that matches the shape of the outer end of the injection nozzle (2); the extrusion plate (17) is provided with a hole for the injection nozzle (2) to pass through, and when accelerating extrusion, the middle hose section (27) is extruded and contacted with the side wall of the hole.

2. The spraying device for drying composite particles of Dendrobium officinale according to claim 1, characterized in that: The accelerated spraying mechanism also includes a slide rail frame (10) and a fixing rod (8); One end of the transmission plate (4) facing away from the crank push rod (6) is slidably connected to the slide rail frame (10), and correspondingly, the slide rail frame (10) is provided with a slide groove; the fixing rod (8) is fixed to the lower end of the slide rail frame (10), and the free end of the fixing rod (8) is fixed to the extrusion plate (17).

3. The spraying device for drying composite particles of Dendrobium officinale according to claim 1, characterized in that: The accelerated spraying mechanism also includes an elastic spring (5), one end of which is fixed to the end of the crank push rod (6), and the other end of which is fixed to the transmission plate (4).

4. The spraying device for drying composite particles of Dendrobium officinale according to claim 3, characterized in that: Also included is a reciprocating drive mechanism; The reciprocating drive mechanism comprises a drive motor (16), a transmission rack (14), a transmission wheel (15), a return spring (13) and a sliding seat (11); The output end of the driving motor (16) is fixed to the middle of the transmission wheel (15); a transmission tooth (25) is provided on a half circumference of the side end of the transmission wheel (15); the transmission tooth (25) and the transmission rack (14) are meshed and connected for transmission; The slide rail frame (10) and the slide seat (11) are fixed, and the slide seat (11) is provided with a through hole adapted for the drive rod (9) to slide through, and the free end of the drive rod (9) is fixed to the transmission rack (14); The return spring (13) is sleeved on the driving rod (9), one end of the return spring (13) is fixed to the sliding seat (11), and the other end of the return spring (13) is fixed to the transmission rack (14).

5. The spraying device for drying composite particles of Dendrobium officinale according to claim 1, characterized in that: The injection nozzle (2) comprises an upper clamping and fixing section (26) and a lower liquid outlet section (28); the upper end of the middle hose section (27) is fixed to the upper clamping and fixing section (26), and the lower end is fixed to the lower liquid outlet section (28).

6. The spraying device for drying composite particles of Dendrobium officinale according to claim 5, characterized in that: The middle hose section (27) is provided with a sliding positioning groove, and the two side edges of the hole are in abutment contact with the sliding positioning groove.

7. The spraying device for drying composite particles of Dendrobium officinale according to claim 1, characterized in that: The middle hose section (27) is made of a tough material.

8. The spraying device for drying composite particles of Dendrobium officinale according to claim 1, characterized in that: It also includes a fixed frame (22), the drying material cylinder (23) is fixedly mounted on the fixed frame (22), a fixed plate (20) is provided at a side end of the fixed frame (22), and the sliding seat (11) is fixed to the fixed plate (20) via a fixed connecting rod (21).

9. The spraying device for drying composite particles of Dendrobium officinale according to claim 1, characterized in that: A material outlet (24) is provided at the lower end of the drying material cylinder (23).

10. The spraying device for drying composite particles of Dendrobium officinale according to claim 1, characterized in that: The upper end of the injection nozzle (2) is connected to the material pipe (1), and the side end of the injection nozzle (2) is connected to the hot air pipe (19).

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