Fire retardant drying equipment

Abstract

The utility model relates to flame retardant drying equipment which comprises a drying oven, a dryer is arranged in the drying oven, a feeding port is formed in the top of the drying oven, a discharging port is formed in the bottom of the drying oven, the dryer comprises at least two reducing cylinders, the diameters of the reducing cylinders are gradually reduced from top to bottom, and the reducing cylinders are arranged side by side in the vertical direction at intervals. An expanding guide table is arranged between every two adjacent necking cylinders, and a first interval is formed between the top of each expanding guide table and the lower end opening edge of the necking cylinder above the expanding guide table; a second interval is formed between the bottom of the diameter-expanding guide table and the upper end opening edge of the necking cylinder below the diameter-expanding guide table, and the first interval, the second interval, the outer surface of the diameter-expanding guide table and the inner side wall of the necking cylinder form a drying path for materials to pass through; a drying flow channel is arranged on the side wall of the necking cylinder and / or the expanding guide table, an air heater communicated with the drying flow channel is arranged on the outer side wall of the drying oven, and a vibration motor in transmission connection with the dryer is further arranged on the drying oven. And the structure is simple, the drying degree is high, and the subsequent processing quality is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of flame retardant processing equipment, in particular to flame retardant drying equipment. Background Art

[0002] Flame retardants have good flame retardant properties. During the processing of flame retardants, the flame retardant materials need to be dried. In the prior art, oven drying is generally used. Specifically, airflow is blown into the oven through a fan, and the airflow is heated and blown into the oven to dry the materials stored in the oven. However, in the actual operation of this drying method, due to the stacking of flame retardant materials, the materials in the upper part are dried more thoroughly, while the drying effect of the materials in the lower part is not good enough, resulting in insufficient overall drying uniformity, which affects the subsequent processing quality of the materials. Utility Model Content

[0003] The utility model aims to provide a flame retardant drying device to solve the problem of insufficient uniformity caused by surface blowing drying in the prior art, which affects the processing quality.

[0004] In order to solve the above problems, the flame retardant drying equipment involved in the utility model adopts the following technical solutions:

[0005] The flame retardant drying equipment comprises an oven, a dryer is arranged in the oven, the top of the oven is provided with a material inlet, the bottom of the oven is provided with a material outlet, the dryer comprises at least two diameter-reducing cylinders, the axis of the necking cylinders extends in the up-down direction, and the diameter thereof gradually decreases from top to bottom, each of the diameter-reducing cylinders is arranged side by side at intervals in the up-down direction, an expansion guide platform is arranged between two adjacent necking cylinders, the axis of the expansion guide platform is consistent with the axis of the necking cylinder, and the diameter thereof gradually increases from top to bottom, the top of the expansion guide platform extends upward to the necking cylinder above, and is aligned with the lower end of the necking cylinder above. There is a first interval between the expansion guide platform and the bottom of the expansion guide platform extends downward into the necking tube below, and there is a second interval between the bottom of the expansion guide platform and the upper end edge of the necking tube below. The first interval, the second interval, the outer surface of the expansion guide platform and the inner side wall of the necking tube constitute a drying path for the material to pass through; a drying flow channel is provided on the side wall of the necking tube and / or the expansion guide platform, an air heater connected to the drying flow channel is provided on the outer side wall of the oven, an adjustment mechanism for limiting the interval opening is provided on the first interval, and a vibration motor connected to the dryer is also provided on the oven.

[0006] In a preferred embodiment, a dehumidification port is provided on the top of the oven, and an exhaust fan is connected to the dehumidification port.

[0007] In a preferred embodiment, the drying flow channel includes circumferential spiral flow holes respectively arranged on the side walls of the necking cylinder and / or the diameter-expanding guide platform. An air inlet pipe and an exhaust pipe connected to the circumferential spiral flow holes are further provided on the side walls of the necking cylinder and / or the diameter-expanding guide platform. The air inlet pipe and the exhaust pipe are communicated with the air heater through a flexible connection.

[0008] In a preferred embodiment, two or more support frames are arranged in the oven, and the support frames are in stop and limit cooperation with the outer side wall of the necking cylinder section in the vertical direction.

[0009] In a preferred embodiment, the dryer further includes a transmission shaft integrally inserted into the central positions of each necking cylinder and diameter-expanding guide platform. A support rib is connected between the transmission shaft and the necking cylinder, and the upper end of the transmission shaft is in transmission connection with the vibration motor.

[0010] In a preferred embodiment, an installation frame is arranged above the discharge port of the oven, a guide sleeve is arranged at the central position of the installation frame, and the bottom of the transmission shaft is movably inserted into the guide sleeve.

[0011] In a preferred embodiment, the adjusting mechanism includes support shafts rotatably assembled in the first interval. There are several support shafts, which are evenly spaced in the circumferential direction of the first interval. The extending direction of the support shafts is perpendicular to the axis direction of the necking cylinder. A fan blade is sleeved on the support shaft, and the edges of the fan blades of two adjacent support shafts are vertically offset from each other to adjust the opening degree of the corresponding first interval by flipping the fan blades up and down.

[0012] As described above, the present invention has the following beneficial effects: Compared with the prior art, in the actual use process of the flame retardant drying equipment involved in the present invention, the material undergoes cyclic charging and discharging operations such as passing through the necking cylinder, the first interval, the diameter-expanding guide platform, the second interval, the necking cylinder, and the diameter-expanding guide platform. During the vertical transportation of the flame retardant, the drying path of the flame retardant can be effectively extended, and corresponding drying pipelines are arranged at any position, so as to effectively heat and dry the material flowing through the surface. During the whole process, the material can be fully dried during the transportation movement, and the drying uniformity is good and the drying is relatively thorough. At the same time, this method can effectively adjust the opening degrees of the first interval and the second interval according to the actual drying situation, so as to control the sparseness degree of the material transportation path. The moisture after drying can be sucked out upward through the negative pressure suction port. The structure is simple, the drying degree is high, and the subsequent processing quality is effectively guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required in the embodiments:

[0014] Figure 1 Structural schematic diagram of a specific embodiment of the flame retardant drying equipment of the present utility model;

[0015] Figure 2 is Figure 1 structural schematic diagram of the dryer in;

[0016] Figure 3 is Figure 2 top view of;

[0017] Figure 4 is Figure 2 half-sectional view of.

[0018] Explanation of reference numerals: 1 - oven; 2 - dryer; 3 - feeding port; 4 - discharging port; 5 - air heater; 6 - moisture exhaust port; 7 - exhaust fan; 8 - upper necking cylinder; 9 - lower necking cylinder; 10 - diameter expanding guide platform; 11 - transmission shaft; 12 - vibration motor; 13 - first interval; 14 - second interval; 15 - adjusting mechanism; 16 - support frame; 17 - mounting frame; 18 - guide sleeve; 19 - drying flow channel; 20 - support shaft; 21 - fan blade; 22 - intake pipe; 23 - exhaust pipe; 24 - flexible connection. Specific embodiments

[0019] In order to make the technical purpose, technical solution and beneficial effects of the present utility model clearer, the technical solution of the present utility model will be further described below with reference to the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model, that is, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. The components of the embodiments of the present utility model described and shown herein can be arranged and designed in various different configurations.

[0020] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "first", "second" and similar words do not denote any order, quantity or importance, but are only used to distinguish different components. The terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can also be the communication inside two elements. It can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the description of this application herein are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items.

[0022] A specific embodiment of the flame retardant drying equipment involved in the present utility model is as follows Figures 1 to 4 As shown, the flame retardant drying equipment includes an oven 1, where the oven 1 is the basic carrier for all other components. In this embodiment, in order to adapt to the subsequent structure form of the dryer 2, it is designed as a cylindrical structure. Of course, in other embodiments, those skilled in the art can design it arbitrarily according to actual needs without specific limitations.

[0023] The top of the oven 1 has a feed inlet 3, and the bottom has a discharge outlet 4. A dryer 2 is arranged inside the oven 1. The flame retardant material is introduced into the interior of the oven 1 through the feed inlet 3, and the material passing through is heat-exchanged and dried by the dryer 2. The dried material is discharged through the discharge outlet 4 to achieve the drying purpose. And a moisture discharge port 6 is opened at the top of the oven 1, and an exhaust fan 7 is connected to the moisture discharge port 6. During the actual drying process, the water vapor inside the flame retardant is evaporated and discharged by heat-exchanging with the dryer 2, and the moisture is extracted outwards by the exhaust fan 7 at the top to ensure the dryness of the air inside the oven 1.

[0024] And in order to realize the drying process of the flame retardant, the dryer 2 includes at least two reduced-diameter cylinders. Specifically in this embodiment, there are two reduced-diameter cylinders, namely an upper reduced-diameter cylinder 8 and a lower reduced-diameter cylinder 9. The axes of the two reduced-diameter cylinders both extend in the up-and-down direction, and their diameters gradually decrease from top to bottom. Each reduced-diameter cylinder is arranged side by side at intervals in the up-and-down direction. An enlarged-diameter guide platform 10 is arranged between the two reduced-diameter cylinders. The axis of the enlarged-diameter guide platform 10 is consistent with the axis of the reduced-diameter cylinder, and its diameter gradually increases from top to bottom. The top of the enlarged-diameter guide platform 10 extends upwards into the upper reduced-diameter cylinder 8, and there is a first interval 13 between it and the lower port edge of the upper reduced-diameter cylinder 8; the bottom of the enlarged-diameter guide platform 10 extends downwards into the lower reduced-diameter cylinder 9, and there is a second interval 14 between it and the upper port edge of the lower reduced-diameter cylinder 9. The first interval 13, the second interval 14, the outer surface of the enlarged-diameter guide platform 10, and the inner side wall of the reduced-diameter cylinder constitute a drying path for the material to pass through.

[0025] When the actual material passes through, the material passes through the feed port 3 into the upper necking tube 8, and gradually accumulates in the upper necking tube 8. At the same time, part of the material is discharged downward through the first interval 13, and is dispersed and discharged through the outer surface of the expansion guide platform 10, so that the material is spread as flat as possible and enters the second interval 14. After that, the material is transported downward along the inner wall of the lower necking tube 9, and is transported downward through the lower end surface of the lower necking tube 9 to the discharge port 4, and then discharged downward.

[0026] In order to achieve drying and heating of the material in the drying path, a drying flow channel 19 is provided on the side wall of the necking tube and / or the expanding guide platform 10, and an air heater 5 connected to the drying flow channel 19 is provided on the outer wall of the oven 1. Specifically, in this embodiment, a drying flow channel 19 is provided on the side wall of the necking tube, and the drying flow channel 19 includes annular spiral flow holes respectively arranged on the side walls of each necking tube, and an air inlet pipe 22 and an exhaust pipe 23 connected to the annular spiral flow holes are also provided on the side wall of the necking tube, and the air inlet pipe 22 and the exhaust pipe 23 are connected to the air heater 5 through a soft connection 24.

[0027] In actual operation, the external air is heated by the air heater 5 and then passed into the drying channel 19 through the air inlet pipe 22. After heat exchange and drying, the air is passed outwardly through the exhaust pipe 23 to the air heater 5 for cyclic heating.

[0028] In order to control the flow rate of the material, that is, to control the degree of dryness of the material, an adjusting mechanism 15 for limiting the interval opening is provided on the first interval 13. Correspondingly, in order to meet the control of the discharge speed, a corresponding adjusting mechanism 15 is also provided at the bottom of the lower necking tube 9.

[0029] Specifically, the adjustment mechanism 15 includes a support shaft 20 rotatably assembled in the first interval 13. There are a plurality of support shafts 20, which are evenly spaced around the first interval 13 and the second interval 14 in the circumferential direction. The extension direction of the support shaft 20 is perpendicular to the axial direction of the necking tube. The support shaft 20 is sleeved with a fan blade 21. The edges of the fan blades 21 of two adjacent support shafts 20 are offset from each other up and down, so that the fan blades 21 can be turned up and down to adjust the opening size of the corresponding first interval 13 and the second interval 14. The opening of the interval can be controlled by controlling the inclination angle of the fan blade 21 manually or by external electrical control. This control method is a conventional technical means for existing opening control and will not be described in detail.

[0030] In addition, in order to ensure that the material will not be compacted and accumulated inside any necking tube and thus cannot be transported, a vibration motor 12 which is transmission-connected to the dryer 2 is also provided on the oven 1 .

[0031] In order to support the dryer 2, two layers of support frames 16 are arranged in the oven 1, and the support frames 16 are matched with the outer side wall of the necked barrel section to stop and limit along the up and down directions.

[0032] Meanwhile, in order to achieve the structural integrity assembly of each part of the dryer 2, the dryer 2 further includes a transmission shaft 11 integrally inserted at the central positions of each necking cylinder and the diameter-expanding guide platform 10. A support rib is connected between the transmission shaft 11 and the necking cylinder, and the upper end of the transmission shaft 11 is in transmission connection with the vibration motor 12.

[0033] In order to adapt to the vibration amplitude of the vibration motor 12, an installation frame 17 is arranged above the discharge port 4 of the oven 1, and a guide sleeve 18 is arranged at the central position of the installation frame 17. The bottom of the transmission shaft 11 is movably inserted into the guide sleeve 18.

[0034] Through the repeated charging and discharging operations of the material passing through the necking cylinder, the first interval 13, the diameter-expanding guide platform 10, the second interval 14, the necking cylinder, the diameter-expanding guide platform 10, etc., the drying path of the flame retardant can be effectively extended during the vertical transportation of the flame retardant, and corresponding drying pipelines are arranged at any position, so as to effectively heat and dry the material flowing through the surface. Moisture can be discharged outward from the moisture discharge port 6. Workers only need to control the feeding amount of the material at the feeding port 3 and adjust the opening degree of the adjusting mechanism 15 to control the drying degree of the material.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Any equivalent replacement, modification or partial replacement of the present invention without departing from the spirit and scope of the present invention shall be covered by the scope of protection of the claims of the present invention.

Claims

1. A flame retardant drying device, comprising an oven, a dryer arranged in the oven, a feed inlet at the top of the oven, and a discharge outlet at the bottom of the oven, characterized in that: The dryer comprises at least two reducing cylinders, the axis of the reducing cylinder extends in the up-down direction, and the diameter thereof gradually decreases from top to bottom. The reducing cylinders are arranged side by side at intervals in the up-down direction, and an expanding guide platform is arranged between two adjacent reducing cylinders. The axis of the expanding guide platform is consistent with the axis of the reducing cylinder, and the diameter thereof gradually increases from top to bottom. The top of the expanding guide platform extends upward into the reducing cylinder above, and a first interval is formed between the expanding guide platform and the lower end edge of the reducing cylinder above; the bottom of the expanding guide platform extends downward into the reducing cylinder below, and a second interval is formed between the expanding guide platform and the upper end edge of the reducing cylinder below; the first interval, the second interval, the outer surface of the expanding guide platform, and the inner side wall of the reducing cylinder constitute a drying path for the material to pass through; a drying flow channel is provided on the side wall of the reducing cylinder and / or the expanding guide platform, an air heater connected to the drying flow channel is provided on the outer side wall of the oven, an adjusting mechanism for limiting the interval opening is provided on the first interval, and a vibration motor connected to the dryer is also provided on the oven.

2. The flame retardant drying equipment according to claim 1, characterized in that: A dehumidification port is provided on the top of the oven, and an exhaust fan is connected to the dehumidification port.

3. The flame retardant drying equipment according to claim 1, characterized in that: The drying flow channel includes annular spiral flow holes respectively arranged on the side walls of the necking tube and / or the expanding guide platform. The side walls of the necking tube and / or the expanding guide platform are also provided with an air inlet pipe and an exhaust pipe connected to the annular spiral flow holes. The air inlet pipe and the exhaust pipe are connected to the air heater through a flexible connection.

4. The flame retardant drying equipment according to claim 3, characterized in that: More than two layers of support frames are arranged in the oven, and the support frames are matched with the outer side wall of the necked barrel section to stop and limit along the up and down directions.

5. The flame retardant drying equipment according to claim 1, characterized in that: The dryer also includes a transmission shaft integrally inserted in the center of each necking tube and the diameter expansion guide platform, a supporting rib is connected between the transmission shaft and the necking tube, and the upper end of the transmission shaft is transmission-connected to the vibration motor.

6. The flame retardant drying equipment according to claim 5, characterized in that: A mounting frame is arranged above the discharge port of the oven, a guide sleeve is arranged at the center of the mounting frame, and the bottom of the transmission shaft is movably inserted in the guide sleeve.

7. The flame retardant drying equipment according to claim 1, characterized in that: The adjustment mechanism includes a support shaft rotatably assembled in the first interval, and there are a plurality of support shafts that are evenly spaced in the circumferential direction around the first interval. The extension direction of the support shaft is perpendicular to the axial direction of the necking tube. Fan blades are sleeved on the support shaft, and the edges of the fan blades of two adjacent support shafts are offset from each other up and down to adjust the opening size of the corresponding first interval by flipping the fan blades up and down.

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