Drying and dust removing device

Abstract

The drying and dust removing device comprises a drying cylinder, a hot air mechanism, a lifting mechanism and a dust removing mechanism, the hot air mechanism is communicated with the inner bottom of the drying cylinder, and the hot air mechanism is used for conveying hot air flow into the drying cylinder; the lifting mechanism is coaxially arranged in the drying cylinder, a drying cavity is defined between the lifting mechanism and the drying cylinder, and the lifting mechanism is used for lifting materials at the inner bottom of the drying cylinder to the inner top of the drying cylinder and discharging the materials into the drying cavity; and the dust removal mechanism comprises a dust removal pipe, a spraying piece and an air exhaust piece, a bent channel is formed in the dust removal pipe, the inner bottom of the dust removal pipe communicates with the inner top of the drying cavity through the air exhaust piece, and the spraying piece is arranged in the height direction of the dust removal pipe and used for spraying liquid into the bent channel. The problems that in the prior art, the fertilizer drying effect is poor, and adverse effects can be caused to the environment when hot airflow for drying the fertilizer is directly discharged are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fertilizer drying, in particular to a drying and dust removal device. Background Art

[0002] Fertilizer drying is a process that removes moisture from fertilizers, usually used to produce dry fertilizer products. The purpose of fertilizer drying is to improve the storage stability of fertilizers, facilitate transportation and use, and reduce fertilizer caking and deterioration during storage and transportation. There are many ways to dry fertilizers, the most common of which include hot air drying, steam drying, solar drying, etc. Among them, hot air drying is one of the most commonly used methods. It achieves fertilizer drying by blowing hot air into the fertilizer to evaporate and discharge the moisture.

[0003] For example, in the patent document with the existing patent application number 202122984026.2, a drying furnace used for the production of biological fertilizer is disclosed, and specifically disclosed to include a dryer, an air supply hose is fixedly connected to the left side of the dryer, the left side of the air supply hose is fixedly connected to a fuselage, and the interior of the fuselage is fixedly connected to a stirring device; the fertilizer is dried by the above scheme, but the drying effect is not good, and the direct discharge of the hot airflow for drying the fertilizer will have adverse effects on the environment. Utility Model Content

[0004] The purpose of the utility model is to overcome the above technical deficiencies and provide a drying and dust removal device to solve the problems in the prior art that the fertilizer drying effect is poor and the direct discharge of the hot air flow for drying the fertilizer will cause adverse effects on the environment.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a drying and dust removal device, comprising a drying cylinder and a hot air mechanism, wherein the hot air mechanism is connected to the inner bottom of the drying cylinder and is used to transport hot air flow into the drying cylinder; a lifting mechanism and a dust removal mechanism are also included.

[0007] The lifting mechanism is coaxially built into the drying cylinder, and a drying chamber is formed between the lifting mechanism and the drying cylinder, and is used to lift the materials at the bottom of the drying cylinder to the top, and unload them into the drying chamber;

[0008] The dust removal mechanism includes a dust removal pipe, a spray part and an exhaust part. A curved channel is arranged in the dust removal pipe. The inner bottom of the dust removal pipe is connected with the inner top of the drying chamber via the exhaust part. The spray part is arranged along the height direction of the dust removal pipe, and the spray part is used to spray liquid into the curved channel.

[0009] In some embodiments, the lifting mechanism includes a lifting tube, a rotating shaft, spiral blades and a driving member. The lifting tube is coaxially installed in the drying cylinder. The lower end and the upper end of the lifting tube are respectively provided with a feed port and a discharge port connected to the drying chamber. The rotating shaft is coaxially and rotatably installed in the lifting tube. The spiral blades are connected to the rotating shaft. The driving member is connected to the lower end of the rotating shaft and is used to drive the rotating shaft to rotate around its own axis.

[0010] In some embodiments, the lower end of the lifting pipe extends to the outside of the drying cylinder and is connected to a screw conveying mechanism.

[0011] In some embodiments, a uniform distribution bucket is provided at the upper end of the lifting pipe corresponding to the feeding port at the top of the drying cylinder.

[0012] In some embodiments, the lifting tube is connected with a sleeve along the height direction, an air guide cavity is formed between the sleeve and the lifting tube, a plurality of air diffusion pipes extending into the drying cavity are arranged on the sleeve, and the hot air mechanism is communicated with the air guide cavity.

[0013] In some embodiments, the inner wall of the drying drum is further provided with a plurality of slow flow plates, and each of the plurality of slow flow plates has a protrusion arranged upward.

[0014] In some embodiments, an annular block is provided on the circumference of the top of the drying chamber, and an air collecting chamber is formed between the annular block and the inner wall of the drying cylinder. A plurality of air guide holes are opened on the annular block for connecting the air collecting chamber with the drying chamber, and the air collecting chamber is connected with the dust removal pipe.

[0015] In some embodiments, a liquid storage tank is further included, in which liquid is contained, the lower end of the dust removal pipe is connected to the liquid storage tank, and the liquid storage tank is connected to the plurality of spraying parts via a liquid pumping part.

[0016] In some embodiments, an air diffuser plate is provided in the dust removal pipe below the curved channel, and a plurality of air vents are provided on the air diffuser plate.

[0017] In some embodiments, at least one filter plate layer is disposed in the dust removal pipe above the curved channel.

[0018] Compared with the prior art, the utility model provides a drying and dust removing device, which is connected with the inner bottom of the drying cylinder through a hot air mechanism, and the hot air mechanism is used to convey a hot air flow into the drying cylinder; the lifting mechanism is coaxially built into the drying cylinder, and a drying chamber is formed between the lifting mechanism and the drying cylinder, and is used to lift the material at the bottom of the drying cylinder to the inner top, and unload it into the drying chamber, so that the fertilizer can be circulated and dried in the drying cylinder, and the drying effect is better; at the same time, a curved channel is provided in the dust removal pipe, and the inner bottom of the dust removal pipe is connected with the inner top of the drying chamber via an exhaust piece, and a spray piece is provided along the height direction of the dust removal pipe, and the spray piece is used to spray liquid into the curved channel, and the sprayed liquid can absorb dust in the hot air flow and can exchange heat with the hot air flow, thereby ensuring that the discharged air flow will not cause damage to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a drying and dust removal device provided by an embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of the internal structure of the drying drum provided by the embodiment of the utility model;

[0021] Figure 3 yes Figure 2 A magnified schematic diagram of the middle A area;

[0022] Figure 4 It is a schematic diagram of the internal structure of the dust removal pipe provided in an embodiment of the utility model;

[0023] Figure 5 It is a schematic diagram of the internal structure of the slow flow plate provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] In order to solve the technical problems in the prior art that the fertilizer drying effect is poor and the direct discharge of the hot air flow for drying the fertilizer will cause adverse effects on the environment, the utility model provides a drying and dust removal device that can ensure the fertilizer drying effect and perform dust removal and heat exchange treatment on the hot air flow.

[0026] See also Figure 1 and Figure 5 , Figure 1 and Figure 5A drying and dust-removing device in one embodiment of the utility model comprises a drying cylinder 1, a hot air mechanism 2, a lifting mechanism 3 and a dust-removing mechanism 4, wherein the hot air mechanism 2 is connected to the inner bottom of the drying cylinder 1, and the hot air mechanism 2 is used to convey a hot air flow into the drying cylinder 1; the lifting mechanism 3 is coaxially built into the drying cylinder 1, and a drying chamber is formed between the lifting mechanism 3 and the drying cylinder 1, and the lifting mechanism 3 is used to lift the material at the inner bottom of the drying cylinder 1 to the inner top, and unload it into the drying chamber; the dust-removing mechanism 4 comprises a dust-removing pipe 41, a spraying member 42 and an exhaust member 43, a curved channel is arranged in the dust-removing pipe 41, the inner bottom of the dust-removing pipe 41 is connected to the inner top of the drying chamber via the exhaust member 43, the spraying member 42 is arranged along the height direction of the dust-removing pipe 41, and the spraying member 42 is used to spray liquid into the curved channel.

[0027] It should be noted that the lifting mechanism 3 is not limited to a specific structure. As long as it can lift the material at the bottom of the drying cylinder 1 to the top and unload it into the drying chamber so that the fertilizer can be circulated and dried, no further details will be given here.

[0028] In this specific embodiment, the lifting mechanism 3 includes a lifting tube 31, a rotating shaft 32, a spiral blade 33 and a driving member 34. The lifting tube 31 is coaxially built into the drying cylinder 1. The lower end and the upper end of the lifting tube 31 are respectively provided with a feed port 311 and a discharge port 312 connected to the drying chamber. The rotating shaft 32 is coaxially and rotatably built into the lifting tube 31. The spiral blade 33 is connected to the rotating shaft 32. The driving member 34 is connected to the lower end of the rotating shaft 32 and is used to drive the rotating shaft 32 to rotate around its own axis.

[0029] Specifically, the driving member 34 is a forward and reverse motor. Since the inner diameter of the bottom of the drying drum 1 is tapered, the material at the bottom of the drying drum 1 will enter the lifting pipe 31 through the feed port 311, and the spiral blade 33 will rotate clockwise to lift the fertilizer.

[0030] In one embodiment, the lower end of the lifting tube 31 extends to the outside of the drying drum 1 and is connected to a screw conveying mechanism 5. It should be noted that after the fertilizer in the drying drum 1 is dried, the spiral blade 33 can be driven counterclockwise by the driving member 34 to drive the fertilizer to move toward the lower end of the lifting tube 31, and the fertilizer can be transported to a designated position by the screw conveying mechanism 5.

[0031] On the basis of the above scheme, the upper end of the lifting pipe 31 is provided with a uniform distribution bucket 35 corresponding to the feeding port at the top of the drying cylinder 1. Specifically, the uniform distribution bucket 35 has an upwardly disposed protrusion, and the uniform distribution bucket 35 can ensure that the fertilizer is evenly scattered into the drying chamber.

[0032] On the basis of the above scheme, the lifting pipe 31 is connected with a sleeve 36 along the height direction, and an air guide cavity is formed between the sleeve 36 and the lifting pipe 31. The sleeve 36 is provided with a plurality of air diffusion pipes 37 extending into the drying cavity, and the hot air mechanism 2 is connected with the air guide cavity.

[0033] It should be noted that the hot air flow delivered to the air guide cavity by the hot air mechanism 2 can be dispersed into the drying cavity through the air diffusion pipe 37, thereby increasing the contact area between the fertilizer and the hot air flow and improving the drying effect of the fertilizer.

[0034] On the basis of the above scheme, the inner wall of the drying cylinder 1 is also provided with a plurality of slow flow plates 11, and the plurality of slow flow plates 11 all have a protrusion arranged upward. By providing a plurality of slow flow plates 11, the falling speed of the fertilizer can be slowed down, ensuring that the fertilizer can fully contact with the hot air flow.

[0035] In one embodiment, an annular block 12 is provided in the circumference of the top of the drying chamber, and an air collecting chamber is formed between the annular block 12 and the inner wall of the drying cylinder 1. A plurality of air guide holes for connecting the air collecting chamber with the drying chamber are opened on the annular block 12, and the air collecting chamber is connected with the dust removal pipe 41.

[0036] It should be noted that, after the fertilizer is transported into the drying chamber through the feeding port at the top of the drying cylinder 1, the feeding port can be closed by a cover plate, and the exhaust member 43 can extract the hot air flow in the drying chamber into the dust removal pipe 41.

[0037] On the basis of the above scheme, it further includes a liquid storage tank 44 , in which liquid is contained, the lower end of the dust removal pipe 41 is connected to the liquid storage tank 44 , and the liquid storage tank 44 is connected to the plurality of spraying parts 42 via a liquid pumping part 45 .

[0038] Specifically, the liquid sprayed by the spray component can flow back to the liquid storage tank 44 for recycling; in addition, an air dispersion plate 46 is arranged below the curved channel in the dust removal pipe 41, and a plurality of air vents are opened on the air dispersion plate 46, and at least one filter plate layer 47 is arranged above the curved channel in the dust removal pipe 41.

[0039] In order to better understand the present invention, the following Figures 1 to 5 The technical solution of the utility model is described in detail: the fertilizer is transported to the drying chamber through the feeding port at the top of the drying cylinder 1, the lifting mechanism 3 is used to lift the material at the bottom of the drying cylinder 1 to the inner top and unload it into the drying chamber, the hot air mechanism 2 is used to transport a hot air flow into the drying cylinder 1, the hot air flow is in full contact with the fertilizer, and the fertilizer is dried; at the same time, the exhaust part 43 draws the hot air flow in the drying chamber into the dust removal pipe 41, and the spray part 42 is used to spray liquid into the curved channel, so as to exchange heat and remove dust from the hot air flow.

[0040] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A drying and dust removal device, comprising a drying cylinder and a hot air mechanism, wherein the hot air mechanism is connected to the inner bottom of the drying cylinder and is used to transport a hot air flow into the drying cylinder; characterized in that: It also includes a lifting mechanism and a dust removal mechanism. The lifting mechanism is coaxially built into the drying cylinder, and a drying chamber is formed between the lifting mechanism and the drying cylinder, and is used to lift the materials at the bottom of the drying cylinder to the top, and unload them into the drying chamber; The dust removal mechanism includes a dust removal pipe, a spray part and an exhaust part. A curved channel is arranged in the dust removal pipe. The inner bottom of the dust removal pipe is connected with the inner top of the drying chamber via the exhaust part. The spray part is arranged along the height direction of the dust removal pipe, and the spray part is used to spray liquid into the curved channel.

2. A drying and dust removal device according to claim 1, characterized in that: The lifting mechanism includes a lifting tube, a rotating shaft, spiral blades and a driving member. The lifting tube is coaxially built into the drying cylinder. The lower end and the upper end of the lifting tube are respectively provided with a feed port and a discharge port connected to the drying chamber. The rotating shaft is coaxially and rotatably built into the lifting tube. The spiral blades are connected to the rotating shaft. The driving member is connected to the lower end of the rotating shaft and is used to drive the rotating shaft to rotate around its own axis.

3. A drying and dust removal device according to claim 2, characterized in that: The lower end of the lifting pipe extends to the outside of the drying cylinder and is connected with a screw conveying mechanism.

4. A drying and dust removal device according to claim 2, characterized in that: The upper end of the lifting pipe is provided with a uniform distribution bucket corresponding to the feeding port at the top of the drying cylinder.

5. A drying and dust removal device according to claim 2, characterized in that: The lifting pipe is connected with a sleeve along the height direction, an air guide cavity is formed between the sleeve and the lifting pipe, a plurality of air diffusion pipes extending into the drying cavity are arranged on the sleeve, and the hot air mechanism is communicated with the air guide cavity.

6. A drying and dust removal device according to claim 5, characterized in that: The inner wall of the drying cylinder is also provided with a plurality of slow flow plates, and the plurality of slow flow plates all have a protrusion arranged upward.

7. A drying and dust removal device according to claim 1, characterized in that: An annular block is provided on the circumference of the top of the drying chamber, and an air collecting chamber is formed between the annular block and the inner wall of the drying cylinder. A plurality of air guide holes for connecting the air collecting chamber with the drying chamber are opened on the annular block, and the air collecting chamber is connected with the dust removal pipe.

8. A drying and dust removal device according to claim 1, characterized in that: It also includes a liquid storage box, in which liquid is contained. The lower end of the dust removal pipe is connected to the liquid storage box, and the liquid storage box is connected to the plurality of spraying parts via a liquid pumping part.

9. A drying and dust removal device according to claim 1, characterized in that: An air dispersion plate is arranged in the dust removal pipe below the curved passage, and a plurality of air vents are formed on the air dispersion plate.

10. A drying and dust removal device according to claim 1 or 9, characterized in that: At least one filter plate layer is arranged in the dust removal pipe above the curved channel.

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