Drying barrel assembly for dryer

Abstract

The drying cylinder assembly comprises a drying cylinder, outer end plates are fixed to the end faces of the left end and the right end of the drying cylinder, a feeding through hole is formed in the middle of the outer end plate at the left end, and the right portion of a feeding pipe is located in the feeding through hole and movably connected to the outer end plate at the left end. The right ends of the air inlet pipe and the air return pipe extend out of the middle through hole of the outer end plate at the right end; a plurality of branch air outlet through holes are formed in a bottom wall plate of the air inlet pipe, and a plurality of branch air inlet through holes are formed in the side wall of the air return pipe; the air inlet pipe of which the left end is close to the outer end plate at the left end of the drying cylinder body is arranged in the drying cylinder body, so that the whole drying cylinder body is filled with hot air, and the drying effect and the drying efficiency of materials in the drying cylinder body are improved; the air inlet pipe and the air return pipe cannot rotate along with the drying barrel, and the connecting and drying air return effects are guaranteed.

Description

Technical Field:

[0001] The utility model relates to the technical field of drying equipment, and more specifically to a drying cylinder assembly for a dryer. Background Art:

[0002] Existing fresh materials, such as bamboo slices, etc., need to be dried before use. Existing drying equipment generally uses electric heating for drying, heating the gas in the drying equipment. Since there is a large amount of oxygen mixed in the air, when drying fresh materials such as bamboo slices, it will cause the surface of the materials to oxidize, affecting their quality. At the same time, the cavity of the existing drying equipment does not operate, resulting in uneven drying of the internal materials.

[0003] Therefore, a rotatable cylinder is now designed. An anaerobic or low-oxygen hot gas that circulates is introduced into the cylinder to dry the materials in the cylinder. The cylinder rotates to ensure uniform drying. Since a circulating hot gas needs to be introduced into the cylinder and the cylinder needs to be able to rotate, only air inlet holes and air outlet holes are provided at the ends of the cylinder. In order to ensure that the hot gas stays in the cylinder for a long enough time, just setting air inlet holes and air outlet holes at the ends cannot ensure that the hot gas fills the entire cylinder for drying, affecting the drying effect and efficiency. Summary of the Utility Model:

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a drying cylinder assembly for a dryer. An air inlet pipe is provided at the left end of the drying cylinder near the outer end plate at the left end of the drying cylinder, thereby ensuring that the entire drying cylinder is filled with hot gas, improving the drying effect and drying efficiency of the materials in the drying cylinder. Moreover, the air inlet pipe and the return air pipe are movably connected to the drying cylinder to ensure that the air inlet pipe and the return air pipe do not rotate with the drying cylinder, ensuring the connection and drying return air effect.

[0005] The solution of the utility model to solve the above technical problems is:

[0006] A drying cylinder assembly for a dryer includes a drying cylinder. Outer end plates are fixedly provided on the end faces at the left and right ends of the drying cylinder. A feeding through hole is formed in the middle of the outer end plate at the left end. The right part of the feeding pipe is located in the feeding through hole and is movably connected to the outer end plate at the left end. The air inlet pipe and the return air pipe are inserted into the drying cylinder, and the right ends of the air inlet pipe and the return air pipe extend out of the middle through hole of the outer end plate at the right end.

[0007] A plurality of branched air outlet holes are formed on the bottom wall plate of the air inlet pipe, and a plurality of branched air inlet holes are formed on the side wall of the return air pipe.

[0008] The air inlet pipe and the return air pipe are movably connected to the drying cylinder through a plurality of connecting components.

[0009] A sealing plate is formed or fixed at the left end of the intake pipe. The sealing plate seals the left end of the intake pipe. The left end of the intake pipe is close to the outer end plate at the left end. The return air pipe is located above the intake pipe. A sealing plate is formed or fixed at the left end of the return air pipe to seal the left end of the return air pipe. The left part of the intake pipe is located below the left side of the left end of the return air pipe. This structure prevents materials from entering the intake pipe and the return air pipe, ensuring normal drying operation.

[0010] The connecting component includes an annular collar and a connecting collar. The intake pipe and the return air pipe are inserted into the annular collar and the connecting collar. The inner side wall of the connecting collar presses against the bottom surface of the intake pipe and the top surface of the return air pipe. The connecting collar is fixed to the intake pipe and the return air pipe. An annular bending portion is formed on one end surface of the outer side of the connecting collar. An inner annular bending portion is formed at the inner side of one end surface of the annular collar. The inner side wall of the inner annular bending portion is close to the bottom surface of the intake pipe and the top surface of the return air pipe. A wear-resistant self-lubricating ring is fixed on the outer side wall of the inner annular bending portion. The outer side wall of the wear-resistant self-lubricating ring presses against the inner side wall of the annular bending portion. A plurality of support connecting rib plates are installed on the annular collar. The outer ends of the support connecting rib plates are welded and fixed to the inner side wall of the drying cylinder.

[0011] An outer annular connecting ring is fixedly connected to the outer side wall of the annular collar through a plurality of bolts. A plurality of support connecting rib plates are welded and fixed to the outer annular connecting ring. All the support connecting rib plates in each outer annular connecting ring are evenly distributed on the outer annular connecting ring with the central axis of the outer annular connecting ring as the center.

[0012] A plurality of discharge through grooves are formed on the outer side wall of the right part of the drying cylinder. All the discharge through grooves are evenly distributed on the outer side wall of the drying cylinder with the central axis of the drying cylinder as the center.

[0013] The inner diameters of all the air outlet through holes of the intake pipe gradually decrease from left to right.

[0014] The outstanding effect of the present utility model is:

[0015] An intake pipe with its left end close to the outer end plate at the left end of the drying cylinder is provided inside the drying cylinder, thereby ensuring that the entire drying cylinder is filled with hot air, improving the drying effect and drying efficiency of the materials inside the drying cylinder. Moreover, the intake pipe and the return air pipe are movably connected to the drying cylinder, ensuring that the intake pipe and the return air pipe do not rotate with the drying cylinder, and ensuring the connection and drying return air effect. Brief Description of the Drawings:

[0016] Figure 1 is a schematic view of the partial structure of the present utility model;

[0017] Figure 2 is a partial cross-sectional view of the present utility model;

[0018] Figure 3Yes Figure 2 is a partially enlarged view;

[0019] Figure 4 Yes Figure 2 is a partially enlarged view of another part of;

[0020] Figure 5 Yes Figure 2 is a partially enlarged view of yet another part of;

[0021] Figure 6 is a schematic view of the partial structure of the drying cylinder of the present utility model with some parts omitted;

[0022] Figure 7 is a schematic view of the structure at a different angle in the sectional state of the present utility model. Specific embodiments:

[0023] In an embodiment, as shown in Figures 1 to 7 a drying cylinder assembly for a dryer includes a drying cylinder 10. Outer end plates 17 are fixed on the end faces at the left and right ends of the drying cylinder 10. A feed through hole is formed in the middle of the outer end plate 17 at the left end. The right part of the feed pipe 30 is located in the feed through hole and is movably connected to the outer end plate 17 at the left end. The right end of the feed pipe 30 is inserted into the feed through hole of the outer end plate 17 at the left end. An end wear-resistant self-lubricating sleeve 179 is fixed on the inner side wall of the feed through hole. The outer side wall of the right end of the feed pipe 30 is closely attached to the inner side wall of the end wear-resistant self-lubricating sleeve 179. With this structure, when the drying cylinder 10 rotates, the feed pipe 30 does not need to rotate along with it.

[0024] The intake pipe 40 and the return pipe 50 are inserted into the drying cylinder 10, and the right ends of the intake pipe 40 and the return pipe 50 extend out of the middle through holes of the outer end plate 17 at the right end;

[0025] A plurality of gas outlet through holes 41 are formed on the bottom wall plate of the intake pipe 40, and a plurality of sub-intake through holes 51 are formed on the side wall of the return pipe 50;

[0026] The intake pipe 40 and the return pipe 50 are movably connected to the drying cylinder 10 through a plurality of connection components.

[0027] Furthermore, the connection component includes an annular ferrule 70 and a connecting ferrule 71. The intake pipe 40 and the return pipe 50 are inserted into the annular ferrule 70 and the connecting ferrule 71. The inner side wall of the connecting ferrule 71 presses against the bottom surface of the intake pipe 40 and the top surface of the return pipe 50. The connecting ferrule 71 is fixed to the intake pipe 40 and the return pipe 50 by welding. An annular bending portion is formed on one end surface of the outer side of the connecting ferrule 71. An inner annular bending portion is formed at the inner side of one end surface of the annular ferrule 70. The inner side wall of the inner annular bending portion is close to the bottom surface of the intake pipe 40 and the top surface of the return pipe 50. A wear-resistant self-lubricating ring 72 is fixed on the outer side wall of the inner annular bending portion. The outer side wall of the wear-resistant self-lubricating ring 72 presses against the inner side wall of the annular bending portion. A plurality of support connecting rib plates 73 are installed on the annular ferrule 70. The outer ends of the support connecting rib plates 73 are welded and fixed to the inner side wall of the drying cylinder 10.

[0028] Furthermore, an outer annular connection ring 74 is fixedly connected to the outer side wall of the annular ferrule 70 by a plurality of bolts. A plurality of support connecting rib plates 73 are welded and fixed to the outer annular connection ring 74. All the support connecting rib plates 73 in each outer annular connection ring 74 are evenly distributed on the outer annular connection ring 74 with the central axis of the outer annular connection ring 74 as the center.

[0029] During installation, the right ends of the intake pipe 40 and the return pipe 50 extend out of the central through hole of the outer end plate 17 at the right end of the drying cylinder 10 and are connected to the air outlet pipe head and the air inlet pipe head installed outside the entire dryer, so that when the drying cylinder 10 rotates, the intake pipe 40 and the return pipe 50 will not rotate along with it.

[0030] Furthermore, a blocking plate is formed or fixed at the left end of the intake pipe 40 to block the left end of the intake pipe 40. The left end of the intake pipe 40 is close to the outer end plate 17 at the left end. The return pipe 50 is located above the intake pipe 40. A blocking plate is formed or fixed at the left end of the return pipe 50 to block the left end of the return pipe 50. The left part of the intake pipe 40 is located below the left side of the left end of the return pipe 50. The left part of the intake pipe 40 is close to the outer end plate 17 at the left part. The left end of the return pipe 50 is far from the outer end plate 17 at the left part. With this structure, the gas coming out of the left part of the intake pipe 40 first fills the left part of the drying cylinder 10 and will not immediately enter the return pipe 50, so that the entire drying cylinder 10 can be filled with hot air for drying.

[0031] Furthermore, the cross-section of the return pipe 50 is fan-shaped. The bottom plate of the return pipe 50 is an annular wall plate. A plurality of sub-intake through holes 51 are formed on the front and rear side plates from the left part to the middle part of the return pipe 50. The outer wall surface of the upper wall plate of the intake pipe 40 is close to the bottom surface of the bottom plate of the return pipe 50, and the two cooperate with each other.

[0032] The inner diameters of all the gas outlet through-holes 41 of the intake pipe 40 gradually decrease from left to right. This structure can ensure that the interior of the entire drying cylinder 10 is uniformly filled with hot air, guaranteeing uniform drying of the materials therein.

[0033] Furthermore, a plurality of stirring rib plates 60 are fixed on the inner side wall of the drying cylinder 10, and a bending portion 61 is formed at the end of the stirring rib plate 60. This structure enables the materials inside the drying cylinder 10 to be stirred by the stirring rib plates 60 when the drying cylinder 10 rotates, thereby improving the uniformity and speed of drying.

[0034] Furthermore, a plurality of discharge through-grooves 109 are formed on the outer side wall of the right part of the drying cylinder 10, and all the discharge through-grooves 109 are evenly distributed on the outer side wall of the drying cylinder 10 centered on the central axis of the drying cylinder 10.

[0035] When this embodiment is in use, the drying cylinder 10 rotates, and hot air enters the intake pipe 40 from the air outlet head installed outside the dryer, and then blows out from the gas outlet through-holes 41 to fill the entire drying cylinder 10, drying the materials therein. Then, the gas enters the return air pipe 50 through the sub-intake through-holes 51 and then into the connected air inlet head. The air inlet head and the air outlet head are connected to the external hot air recovery device and hot air outlet device, so that operations such as continuous supply of hot air can be realized. It can adopt existing conventional structures, which will not be elaborated here.

[0036] This embodiment can ensure that the entire drying cylinder 10 is filled with hot air, improving the drying effect and efficiency of the materials in the drying cylinder 10. Moreover, the intake pipe 40 and the return air pipe 50 are movably connected to the drying cylinder 10, ensuring that the intake pipe 40 and the return air pipe 50 do not rotate with the drying cylinder 10, guaranteeing the connection and drying return air effect.

Claims

1. A drying cylinder assembly for a drying machine, comprising a drying cylinder (10), characterized in that: The outer end plates (17) are fixed on the end surfaces of the left and right ends of the drying cylinder (10); a feed through hole is formed in the middle of the outer end plate (17) at the left end; the right part of the feed pipe (30) is located in the feed through hole and is movably connected to the outer end plate (17) at the left end; the air inlet pipe (40) and the air return pipe (50) are inserted into the drying cylinder (10); the right ends of the air inlet pipe (40) and the air return pipe (50) extend out of the middle through hole of the outer end plate (17) at the right end; A plurality of air outlet holes (41) are formed on the bottom wall plate of the air inlet pipe (40), and a plurality of air inlet holes (51) are formed on the side wall of the air return pipe (50); The air inlet pipe (40) and the air return pipe (50) are movably connected in the drying cylinder (10) via a plurality of connection components.

2. A drying cylinder assembly for a drying machine according to claim 1, characterized in that: A blocking plate is formed or fixed at the left end of the air intake pipe (40), and the blocking plate blocks the left end of the air intake pipe (40). The left end of the air intake pipe (40) is close to the outer end plate (17) at the left end. The return pipe (50) is located above the air intake pipe (40). A blocking plate is formed or fixed at the left end of the return pipe (50), and the left part of the air intake pipe (40) is located below the left side of the left end of the return pipe (50).

3. A drying cylinder assembly for a drying machine according to claim 2, characterized in that: The cross section of the return air pipe (50) is fan-shaped, the bottom plate of the return air pipe (50) is an annular wall plate, and a plurality of air intake holes (51) are formed on the front and rear side plates from the left to the middle of the return air pipe (50), and the outer wall surface of the upper wall plate of the air intake pipe (40) is close to the bottom surface of the bottom plate of the return air pipe (50), and the two are matched.

4. A drying cylinder assembly for a drying machine according to claim 1, characterized in that: A plurality of stirring ribs (60) are fixed on the inner side wall of the drying cylinder (10), and a bending portion (61) is formed at the end of each stirring rib (60).

5. A drying cylinder assembly for a drying machine according to claim 1, characterized in that: The connecting assembly comprises an annular ring (70) and a connecting ring (71), the air intake pipe (40) and the air return pipe (50) are inserted into the annular ring (70) and the connecting ring (71), the inner side wall of the connecting ring (71) is pressed against the bottom surface of the air intake pipe (40) and the top surface of the air return pipe (50), the connecting ring (71) is fixed to the air intake pipe (40) and the air return pipe (50), an annular bending portion is formed on one end surface of the outer side of the connecting ring (71), and the annular ring (70) An inner annular bent portion is formed on the inner side of one end surface, the inner side wall of the inner annular bent portion is close to the bottom surface of the air inlet pipe (40) and the top surface of the air return pipe (50), a wear-resistant self-lubricating ring (72) is fixed on the outer side wall of the inner annular bent portion, the outer side wall of the wear-resistant self-lubricating ring (72) is pressed against the inner side wall of the annular bent portion, a plurality of supporting and connecting ribs (73) are installed on the annular ring (70), and the outer ends of the supporting and connecting ribs (73) are welded and fixed to the inner side wall of the drying cylinder (10).

6. A drying cylinder assembly for a drying machine according to claim 5, characterized in that: An outer ring connecting ring (74) is fixedly connected to the outer side wall of the annular ring (70) by means of a plurality of bolts, a plurality of supporting connecting ribs (73) are welded and fixed to the outer ring connecting ring (74), and all supporting connecting ribs (73) in each outer ring connecting ring (74) are evenly distributed on the outer ring connecting ring (74) with the central axis of the outer ring connecting ring (74) as the center.

7. A drying cylinder assembly for a drying machine according to claim 1, characterized in that: A plurality of material discharging slots (109) are formed on the outer side wall of the right part of the drying cylinder (10), and all the material discharging slots (109) are evenly distributed on the outer side wall of the drying cylinder (10) with the central axis of the drying cylinder (10) as the center.

8. A drying cylinder assembly for a drying machine according to claim 1, characterized in that: The right end of the feed pipe (30) is inserted into the feed through hole of the outer end plate (17) at the left end, and an end wear-resistant self-lubricating sleeve (179) is fixed on the inner side wall of the feed through hole. The outer side wall of the right end of the feed pipe (30) is tightly attached to the inner side wall of the end wear-resistant self-lubricating sleeve (179).

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