A gas drying device for drying tea leaves

Abstract

This invention relates to the field of tea production technology. This application discloses a gas drying device for tea drying, including a fixed rod. A travel sleeve is movably installed on the outer side of the fixed rod through a telescopic cooperation. The contact surface between the fixed rod and the travel sleeve is sealed. A connecting plate is fixedly installed at one end of the travel sleeve by welding. A sieving rope is fixedly installed on the front side of the connecting plate by snap-fit. The sieving rope is distributed in a linear array. One end of the sieving rope is fixedly connected to the front side of the inner wall of the sieving frame. The sieving rope is distributed in a linear array, thus forming a complete plane composed of sieving ropes. The tea leaves are placed at the top of the sieving ropes, which can greatly reduce the contact area between the tea leaves and the air, ensuring that the tea leaves can be fully dried. This avoids the problem that the contact points on the surface of the tea leaves cannot be fully dried due to insufficient contact with hot air, resulting in inconsistent quality of the final tea product.

Description

Technical Field

[0001] This application relates to the field of tea production technology, and in particular to a gas drying device for drying tea. Background Technology

[0002] Tea is a very popular beverage in my country with a long history. It has the function of refreshing the mind and invigorating the spirit. The tea tree is also an important economic crop with a very complete upstream and downstream industrial chain, providing many jobs. Because tea leaves contain a lot of water after picking, they cannot be brewed directly and are prone to oxidation, which can lead to a deviation in taste. Therefore, tea leaves need to be dried after picking.

[0003] Traditional tea drying uses a hot air circulation method, consisting of a drying chamber, a support plate, an air supply device, and a heating device. During operation, the tea leaves are placed on top of the support plate, which is then placed inside the drying chamber. The air supply and heating devices are then activated to circulate high-temperature hot air into the drying chamber. After a prolonged drying process, all the moisture in the tea leaves is completely removed. This type of gas drying device for tea is simple in structure, easy to use, and inexpensive, making it the most widely used gas drying device for tea currently.

[0004] Although existing gas drying devices for tea drying have many advantages as mentioned above, they still have certain limitations in actual use. When tea leaves are placed on top of the support plate, they pile up and the contact points cannot fully contact the hot air, resulting in incomplete drying. Furthermore, the drying progress of different tea leaves is different, and they need to be manually sorted when mixed together, which increases production costs. In view of this, this application proposes a gas drying device for tea drying, which aims to solve the above-mentioned problems. Summary of the Invention

[0005] This application proposes a gas drying device for tea drying, employing the following technical solution: A gas drying device for tea drying includes a drying chamber. A chamber door is movably fitted onto the front of the drying chamber near both sides via shaft holes. A power supply is fixedly installed on the back of the drying chamber via bolts. Air inlets are drilled at the top of the drying chamber using a drilling machine, and these air inlets are distributed in a rectangular array. An air intake device is fixedly installed at the top of the drying chamber by welding. A clamping device is also fixedly installed at the top of the drying chamber outside the air intake device. The air supply hood is fixedly installed on both sides of the inner wall of the drying chamber by welding with slide rails. The slide rails are distributed in a linear array along both sides of the inner wall of the drying chamber. A power supply slot is provided on the left side of the inner wall of the drying chamber below the slide rail, and an installation slot is provided on the right side of the inner wall of the drying chamber above the slide rail. A discharge hole is drilled on the right side of the outer side of the drying chamber by drilling. A heat insulation plug is installed inside the discharge hole. Screening devices are movably installed inside the drying chamber above the slide rail. A discharge device is fixedly installed inside the drying chamber by the snap-fit ​​of the power supply slot and the installation slot.

[0006] Furthermore, the air intake device includes a mounting bracket, which is fixedly installed on the top of the drying chamber by welding. The top of the mounting bracket is drilled with mounting holes, which are distributed in a linear array. The power unit I is fixedly fitted inside the mounting holes by bolt connection. One end of the output shaft of the power unit I is fixedly installed with an air supply fan by bolt connection, and the air supply fan is located inside the air intake hole.

[0007] Furthermore, the screening device includes a screening frame, on both sides of the outer side of the screening frame near the bottom, mounting slides are fixedly installed by welding, the mounting slides are distributed in a linear array, the mounting slides are movably installed on the top of the slide rail, a stroke device is fixedly installed by welding on the back of the inner wall of the screening frame near the bottom, and an impact device is fixedly installed by bolt connection on the top of the inner wall of the screening frame near the back.

[0008] Furthermore, the travel device includes a fixed rod, which is fixedly installed on the back of the inner wall of the screening frame by welding. A travel sleeve is movably installed on the outer side of the fixed rod by telescopic cooperation. The contact surface between the fixed rod and the travel sleeve is sealed. A connecting plate is fixedly installed on one end of the travel sleeve by welding. A screening rope is fixedly installed on the front side of the connecting plate by snap-fit. The screening ropes are distributed in a linear array. One end of the screening rope is fixedly connected to the front side of the inner wall of the screening frame. A contact strip is fixedly installed on the top of the outer side of the travel sleeve by welding.

[0009] Furthermore, the screening rope is made of elastic material, and the back of the contact strip is set with an inclined surface near the right side.

[0010] Furthermore, the impact device includes a power unit II, one end of the output shaft of the power unit II is fixedly mounted with a lead screw by bolt connection, one end of the lead screw is fixedly mounted with a connecting shaft by bolt connection, and an impact block is sleeved on the outside of the lead screw by thread engagement.

[0011] Furthermore, an inclined surface is provided on the front side of the impact block near the right side, and the power unit II will come into contact with the contact strip during the reciprocating motion of the impact block.

[0012] Furthermore, the material feeding device includes a material feeding plate, and the two ends of the material feeding plate are provided with mounting strips by integral casting. A conductive strip is fixedly installed on one side of the mounting strip by snap-fit. The conductive strip is made of a conductor material. After the mounting strip is installed inside the power supply slot, the power supply slot is in a short-circuit state.

[0013] Furthermore, the density of the contact strips inside the screening device increases sequentially from top to bottom.

[0014] This application has the following beneficial effects.

[0015] 1. Ensures that the tea leaves are fully dried, avoiding incomplete drying of the tea leaves due to insufficient contact with hot air at the surface, which would result in inconsistent quality of the final tea product, thus improving the reliability of the drying process of the device.

[0016] 2. Fully dried tea leaves can fall through the larger gaps, thus completing the screening of sufficiently dried tea leaves, achieving the function of automatic screening, avoiding the problem of over-drying tea leaves, and improving the automation of the device.

[0017] 3. This causes the tea leaves above the sieve rope to bounce, thus constantly changing the contact position between the tea leaves and the sieve rope. This avoids the problem of incomplete drying caused by a lack of change in the contact between the tea leaves and the sieve rope, thereby improving the quality of the final product and enhancing the practicality of the device.

[0018] 4. Tea leaves dried to different degrees can be distributed on the top of different screening devices, thus avoiding the problem of manually screening incompletely dried tea leaves after drying due to the mixing of various tea leaves together. This reduces the operating cost of the device. At the same time, the closer the screening device is installed to the top, the less dried the tea leaves that fall on the top of the screening device will be, and the closer the screening device is installed to the bottom, the more dried the tea leaves that fall on the top of the screening device will be, thus reducing the difficulty of screening.

[0019] 5. This allows the screening device, located below the feeding device and not in contact with the tea leaves, to be in a stopped state, thereby making the device more energy-efficient and further reducing the operating cost of the device. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles disclosed in this application.

[0021] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein:

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the main structure of the present invention;

[0025] Figure 4 This is a front view schematic diagram of the main structure of the present invention;

[0026] Figure 5 The structure of this invention Figure 4 Schematic diagram of cross section in the middle AA direction;

[0027] Figure 6 The structure of this invention Figure 4 Schematic diagram of cross section in the middle BB direction;

[0028] Figure 7 This is a schematic diagram of the structural screening device of the present invention;

[0029] Figure 8 This is a top view schematic diagram of the structural screening device of the present invention;

[0030] Figure 9 The structure of this invention Figure 8 Schematic diagram of cross-section in the CC direction;

[0031] Figure 10 This is a schematic diagram of the structural travel device of the present invention;

[0032] Figure 11 This is a top view schematic diagram of the structural travel device of the present invention;

[0033] Figure 12 The structure of this invention Figure 11 Schematic diagram of cross-section along the DD direction;

[0034] Figure 13 This is a schematic diagram of the impact device of the present invention;

[0035] Figure 14 This is a top view schematic diagram of the impact device of the present invention;

[0036] Figure 15 This is a schematic diagram of the material feeding device of the present invention;

[0037] Figure 16 This is a front view schematic diagram of the material feeding device of the present invention.

[0038] In the diagram: 1. Drying chamber; 2. Chamber door; 3. Power supply unit; 4. Air inlet; 5. Air intake device; 51. Mounting bracket; 52. Mounting hole; 53. Power unit I; 54. Air supply fan; 6. Air supply hood; 7. Slide rail; 8. Power supply slot; 9. Mounting slot; 10. Discharge hole; 11. Heat insulation plug; 12. Screening device; 121. Screening frame; 122. Mounting slide plate; 123. Stroke device; 1231. Fixed rod; 1232. Stroke sleeve; 1233. Connecting plate; 1234. Screening rope; 1235. Contact strip; 124. Impact device; 1241. Power unit II; 1242. Lead screw; 1243. Connecting shaft; 1244. Impact block; 13. Discharge device; 131. Discharge plate; 132. Mounting strip; 133. Power supply strip. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0040] Please refer to a gas drying device for drying tea leaves. Figures 1-6The system includes a drying chamber 1. A chamber door 2 is movably fitted onto the front of the drying chamber 1 near both sides via shaft holes. A power supply unit 3 is fixedly installed on the back of the drying chamber 1 via bolts. Air inlets 4 are drilled at the top of the drying chamber 1, arranged in a rectangular array. An air intake device 5 is fixedly installed at the top of the drying chamber 1 via welding. An air supply cover 6 is fixedly installed at the top of the drying chamber 1 outside the air intake device 5 via a snap-fit ​​connection. Sliding surfaces are fixedly installed on both sides of the inner wall of the drying chamber 1 via welding. The rails 7 and slide rails 7 are distributed in a linear array along both sides of the inner wall of the drying chamber 1. A power supply slot 8 is provided on the left side of the inner wall of the drying chamber 1 below the slide rail 7, and an installation slot 9 is provided on the right side of the inner wall of the drying chamber 1 above the slide rail 7. A discharge hole 10 is provided on the right side of the outer side of the drying chamber 1 by drilling. A heat insulation plug 11 is installed inside the discharge hole 10. Screening devices 12 are movably installed inside the drying chamber 1 above the slide rail 7. A discharge device 13 is fixedly installed inside the drying chamber 1 by the snap-fit ​​of the power supply slot 8 and the installation slot 9.

[0041] Please see Figure 2 The air intake device 5 includes a mounting bracket 51, which is fixedly installed on the top of the drying chamber 1 by welding. The top of the mounting bracket 51 is drilled with mounting holes 52, which are distributed in a linear array. The power unit I 53 is fixedly installed inside the mounting holes 52 by bolt connection. One end of the output shaft of the power unit I 53 is fixedly installed with an air supply fan 54 by bolt connection. The air supply fan 54 is located inside the air intake hole 4.

[0042] Please see Figures 7-9 The screening device 12 includes a screening frame 121. Mounting slides 122 are fixedly installed on the two outer sides of the screening frame 121 near the bottom by welding. The mounting slides 122 are distributed in a linear array and are movably installed on the top of the slide rail 7. A stroke device 123 is fixedly installed on the back of the inner wall of the screening frame 121 near the bottom by welding. An impact device 124 is fixedly installed on the top of the inner wall of the screening frame 121 near the back by bolts.

[0043] Please see Figures 10-12The stroke device 123 includes a fixed rod 1231, which is fixedly installed on the back of the inner wall of the screen frame 121 by welding. A stroke sleeve 1232 is movably installed on the outer side of the fixed rod 1231 by telescopic cooperation. The contact surface between the fixed rod 1231 and the stroke sleeve 1232 is sealed. A connecting plate 1233 is fixedly installed on one end of the stroke sleeve 1232 by welding. A screen rope 1234 is fixedly installed on the front of the connecting plate 1233 by snap-fit. The screen ropes 1234 are distributed in a linear array. One end of the screen rope 1234 is connected to... The inner wall of the sieve rack 121 is fixedly connected to the front side, and the sieve ropes 1234 are distributed in a linear array to form a complete plane composed of the sieve ropes 1234. The tea leaves are placed on the top of the sieve ropes 1234, which can greatly reduce the contact area between the tea leaves and the sieve ropes, ensuring that the tea leaves can be fully dried. This avoids the problem that the contact area on the surface of the tea leaves cannot be fully dried due to insufficient contact with the hot air, resulting in inconsistent quality of the final tea product. This improves the reliability of the device in the drying process. The top of the outer side of the travel sleeve 1232 is fixedly installed with a contact strip 1235 by welding.

[0044] Please see Figures 10-12 The screening rope 1234 is made of elastic material, and the contact strip 1235 has a beveled surface on the back near the right side.

[0045] Please see Figures 13-14 The impact device 124 includes a power unit II 1241. One end of the output shaft of the power unit II 1241 is fixedly installed with a lead screw 1242 by bolt connection. One end of the lead screw 1242 is fixedly installed with a connecting shaft 1243 by bolt connection. An impact block 1244 is sleeved on the outside of the lead screw 1242 by thread engagement.

[0046] Please see Figures 7-14The impact block 1244 has an inclined surface on its front side near the right. During the reciprocating motion of the power motor II 1241, the impact block 1244 comes into contact with the contact strip 1235. During this contact, the power motor II 1241 pushes the travel sleeve 1232 and the contact strip 1235 away from the fixed rod 1231. This causes the screening rope 1234 in the travel device 123 to loosen, widening the gap between the ropes. Since tea leaves tend to curl up and shrink after dehydration, fully dried tea leaves can fall through the widened gap, thus completing the automatic screening of sufficiently dried tea leaves and preventing over-drying. This improves the efficiency of the device. The automation system, via the power unit II 1241, pushes the travel sleeve 1232 and contact bar 1235 to move away from the fixed rod 1231. After the power unit II 1241 disengages from the contact bar 1235, the contact surface between the fixed rod 1231 and the travel sleeve 1232 is sealed, creating a low-pressure zone inside the travel sleeve 1232 after displacement. Under this low pressure, the travel sleeve 1232 quickly resets, causing the bent sieve rope 1234 to spring back quickly. This causes the tea leaves above the sieve rope 1234 to bounce, thus continuously changing the contact position between the tea leaves and the sieve rope 1234. This avoids the problem of incomplete drying caused by a static contact between the tea leaves and the sieve rope 1234, thereby improving the quality of the final product and enhancing the practicality of the device.

[0047] Please see Figures 1-6 and Figures 15-16 The feeding device 13 includes a feeding plate 131. Both ends of the feeding plate 131 are integrally cast with mounting strips 132. A conductive strip 133 is fixedly mounted on one side of the mounting strip 132 via a snap-fit ​​mechanism. The conductive strip 133 is made of a conductor material. After the mounting strip 132 is installed inside the power supply slot 8, the power supply slot 8 is in a short-circuit state. After the feeding device 13 is installed, the conductive strip 133 contacts the power supply end inside the power supply slot 8, thus short-circuiting the power supply point. This causes the power supply unit 3 to be unable to supply power to the screening device 12 located below the feeding device 13 and to stop operating. Since the screening device 12 is located below the feeding device 13, it cannot contact the tea leaves, causing the screening device 12 located below the feeding device 13 to be in a stopped state. This makes the device more energy-efficient and further reduces the operating cost of the device.

[0048] Please see Figures 13-15The density of the contact strips 1235 inside the screening device 12 increases from top to bottom, so that each screening device 12 can screen tea to a different degree. The denser the screening ropes 1234, the higher the degree of drying of the screened tea. This allows tea of ​​different drying degrees to be distributed at the top of different screening devices 12, thus avoiding the problem of manually screening incompletely dried tea after drying caused by various teas being mixed together. This reduces the operating cost of the device. At the same time, the installation position of the dropping device 13 can be selected according to the specific needs of the operator. When the dropping device 13 is installed closer to the top, the degree of drying of the tea falling on the top of the dropping device 13 is lower. When the dropping device 13 is installed closer to the bottom, the degree of drying of the tea falling on the top of the dropping device 13 is higher, which reduces the screening difficulty. The tea at the top of the dropping device 13 will slide down along the inclined dropping plate 131 and be discharged through the corresponding discharge hole 10.

Claims

1. A gas drying device for drying tea leaves, characterized in that, The unit includes a drying chamber (1), a door (2) movably connected to the front of the drying chamber (1), a power supply (3) installed on the back of the drying chamber (1), an air inlet (4) at the top of the drying chamber (1) arranged in a rectangular array, an air intake device (5) installed at the top of the drying chamber (1), an air supply hood (6) installed at the top of the drying chamber (1), and slide rails (7) fixed on both sides of the inner wall of the drying chamber (1). The drying chamber (1) is arranged in a linear array on both sides. The left side of the inner wall of the drying chamber (1) is provided with a power supply slot (8), the right side of the inner wall of the drying chamber (1) is provided with an installation slot (9), the right side of the outer side of the drying chamber (1) is provided with a discharge hole (10), the discharge hole (10) is fitted with a heat insulation plug (11), the drying chamber (1) is equipped with a screening device (12), and the drying chamber (1) is equipped with a dropping device (13) through the snap-fit ​​of the power supply slot (8) and the installation slot (9). The air intake device (5) includes a mounting bracket (51), which is fixedly mounted on the top of the drying chamber (1). The top of the mounting bracket (51) is provided with mounting holes (52), which are distributed in a linear array. The mounting holes (52) are fixedly fitted inside the mounting holes (52). One end of the output shaft of the power unit I (53) is equipped with an air supply fan (54), which is located inside the air intake hole (4). The screening device (12) includes a screening frame (121). Mounting slides (122) are installed on the two sides of the outer side of the screening frame (121) near the bottom. The mounting slides (122) are distributed in a linear array. The mounting slides (122) are installed on the top of the slide rail (7). A stroke device (123) is installed on the back side of the inner wall of the screening frame (121) near the bottom. An impact device (124) is fixedly installed on the top of the inner wall of the screening frame (121) near the back side. The travel device (123) includes a fixed rod (1231), which is fixed to the back of the inner wall of the screen frame (121). A travel sleeve (1232) is installed on the outside of the fixed rod (1231). The contact surface between the fixed rod (1231) and the travel sleeve (1232) is sealed. A connecting plate (1233) is installed at one end of the travel sleeve (1232). A screen rope (1234) is installed on the front of the connecting plate (1233). The screen ropes (1234) are distributed in a linear array. One end of the screen rope (1234) is fixedly connected to the front of the inner wall of the screen frame (121). A contact strip (1235) is installed at the top of the outside of the travel sleeve (1232).

2. The gas drying device for tea drying according to claim 1, characterized in that, The screening rope (1234) is made of elastic material, and the contact strip (1235) has an inclined surface on the back side near the right side.

3. The gas drying device for tea drying according to claim 2, characterized in that, The impact device (124) includes a power unit II (1241), one end of the output shaft of the power unit II (1241) is equipped with a lead screw (1242), one end of the lead screw (1242) is equipped with a connecting shaft (1243), and an impact block (1244) is sleeved on the outside of the lead screw (1242) by means of threaded engagement.

4. The gas drying apparatus for tea drying according to claim 3, characterized in that, The impact block (1244) has an inclined surface on the right side of its front side. During the operation of the power machine II (1241) and the reciprocating motion of the impact block (1244), it will come into contact with the contact strip (1235).

5. The gas drying apparatus for drying tea leaves according to claim 4, characterized in that, The material feeding device (13) includes a material feeding plate (131), with mounting strips (132) at both ends of the material feeding plate (131). A conductive strip (133) is installed on one side of the mounting strip (132). The conductive strip (133) is made of a conductor material. After the mounting strip (132) is installed inside the power supply slot (8), the power supply slot (8) is in a short-circuit state.

6. The gas drying apparatus for drying tea leaves according to claim 5, characterized in that, The density of the contact strips (1235) inside the screening device (12) increases sequentially from top to bottom.

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