CN109405515B - Granular material drying device - Google Patents
Granular material drying device Download PDFInfo
- Publication number
- CN109405515B CN109405515B CN201811313442.6A CN201811313442A CN109405515B CN 109405515 B CN109405515 B CN 109405515B CN 201811313442 A CN201811313442 A CN 201811313442A CN 109405515 B CN109405515 B CN 109405515B
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- drying
- pipe
- truncated cone
- drying box
- pipeline
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- 238000001035 drying Methods 0.000 title claims abstract description 107
- 239000008187 granular material Substances 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 128
- 239000002245 particle Substances 0.000 claims description 9
- 239000011236 particulate material Substances 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 description 8
- 238000000926 separation method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000007602 hot air drying Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/12—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/08—Granular materials
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention provides a drying device for granular materials. The invention solves the technical problems that materials are easy to be excessively dried and materials are remained in the cavity, the invention can lift the materials at the bottom of the drying cavity to the top of the drying cavity through the matching of the spiral auger and the material lifting pipe, the material sprinkling holes at the bottom of the upper section of the circular truncated cone-shaped pipeline of the material lifting pipe fall back to the bottom of the drying cavity again for circular drying treatment, the connecting part of the material discharging pipe and the circular truncated cone-shaped pipeline is provided with a material separating valve, the inner wall surface of the circular truncated cone-shaped pipeline is provided with a material dryness sensor, a linkage valve is arranged on each material sprinkling hole correspondingly, the opening and closing states of the material separating valve and the linkage valve are opposite, the excessive drying can be prevented, and the drying quality and. Under the effect of cylinder and telescopic link, both ends can the luffing motion in certain range about the drying cabinet, impels the material to the central authorities of drying cavity and removes, is favorable to the material to get into in the lifting pipe and retrieve the interior remaining dry material of drying cabinet.
Description
Technical Field
The invention belongs to the field of drying, and particularly relates to a granular material drying device.
Background
The existing particle material drying device mostly adopts the mode that hot air is introduced into a drying cavity and is stirred by combining a stirring rod, so that the hot air is fully contacted with the material, and the utilization efficiency of the hot air is improved. However, the granular material drying device cannot timely send the materials meeting the process requirements (dryness) out of the drying cavity, but stay in the cavity to continue to stir and roll the materials which are not dried and further contact with hot air for drying, so that the materials are excessively dried, hot air is consumed, and the utilization efficiency of hot air per unit is reduced. In addition, the existing granular material drying device is inconvenient to discharge and is easy to leave residual materials in the cavity.
Disclosure of Invention
The invention provides a drying device for granular materials, and aims to solve the technical problems.
The particle material drying device comprises a drying box body and a heat source, wherein a drying cavity is formed inside the drying box body, a feeding pipe is arranged in the center of the top of the drying box body, a material lifting pipe is arranged in the center of the drying cavity, and a feeding gap is formed between the bottom of the material lifting pipe and the bottom surface of the drying box body.
The material lifting pipe is internally provided with a spiral auger which comprises a spiral shaft, the lower end of the spiral shaft penetrates through the bottom of the drying box body and is fixedly connected with an output shaft of a rotating motor arranged on the base through a coupler, the spiral shaft is matched with the bottom of the drying box body through a rolling bearing, and spiral blades are welded on the surface of the spiral shaft.
The middle and lower sections of the material lifting pipe are cylindrical pipelines, the upper section of the material lifting pipe is formed by connecting a plurality of sections of pipelines with different shapes and comprises a gradually reducing pipeline, a straight circular pipe and a circular truncated cone-shaped pipeline, the wide edge of the gradually reducing pipeline is fixedly connected with one end of the cylindrical pipeline, the narrow edge of the gradually reducing pipeline is fixedly connected with one end of the straight circular pipe, and the other end of the straight circular pipe is fixedly connected with the bottom surface of the circular truncated cone-shaped pipeline and communicated with the circular truncated cone-shaped pipeline in parallel.
The top surface of the circular truncated cone-shaped pipeline is fixedly connected with and communicated with one end of a discharge pipe, the discharge pipe is sleeved inside the feeding pipe, and the other end of the discharge pipe is provided with a connector on the surface and extends out of the feeding pipe.
The material separating valve is installed at the joint of the discharging pipe and the round platform-shaped pipeline, a material dryness sensor is arranged on the inner wall surface of the round platform-shaped pipeline, material sprinkling holes are uniformly arranged on the bottom surface of the round platform-shaped pipeline, a linkage valve is arranged on each material sprinkling hole, and the material separating valve, the material dryness sensor and the linkage valve are electrically connected with the control system.
The air cylinders are mounted on two sides of the upper surface of the base, a telescopic rod is connected to the air cylinders, a connecting plate is mounted at the top of the telescopic rod, and the connecting plate is fixedly connected to two ends of the bottom of the drying box body.
The bottom center of the drying box body is provided with a discharge hole, a discharge valve is arranged at the position corresponding to the discharge hole, and a material collecting box is arranged on a shaft body right below the discharge valve on an output shaft of the rotating motor.
The feeding gap is 4 times of the particle size of the particulate material to be dried.
The connecting port is a connecting thread.
The connecting thread is connected with a hose.
The number of the material dryness sensors is more than 2.
The connecting plates are fixed at two ends of the bottom of the drying box body through bolts.
The heat source adopts various forms such as electric heating, microwave heating, heat transfer oil heating or hot air heating, and preferably adopts hot air drying.
The length of the output shaft of the spiral shaft or the rotating motor can be adjusted to stretch, and the spiral auger can be extended into the discharge pipe.
And a temperature sensor is arranged in the drying box body.
The material collecting box is of a conical groove structure and is obliquely arranged, the bottommost part of the conical groove is provided with a material collecting opening, and the material collecting opening is connected with a hose.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, through the matching of the spiral auger and the material lifting pipe, the material positioned at the bottom of the drying cavity can be lifted to the top of the drying cavity, and the material sprinkling holes in the bottom surface of the upper section of the circular truncated cone-shaped pipeline of the material lifting pipe fall back to the bottom of the drying cavity again for circular drying treatment, so that the drying effect is good, and the uniform drying of the material can be realized.
The discharge pipe is installed with the junction of round platform form pipeline at a distance from the material valve, is equipped with material quality inductor on the internal face of round platform form pipeline, is provided with the linkage valve on corresponding every material spraying hole, separates the open and close state of material valve and linkage valve opposite, can in time discharge the dry cavity with the material that has dried, prevents excessive drying, has improved drying quality and drying efficiency.
Under the effect of cylinder and telescopic link, both ends can be in certain range luffing motion about the drying cabinet, impels the material to the central authorities of drying cavity and removes, is favorable to the material to get into in the material lifting pipe, also is favorable to retrieving the interior remaining dry material of drying cabinet.
The discharging pipe is sleeved inside the feeding pipe, a connecting port is arranged on the surface of the other end of the discharging pipe and is favorable for conveniently collecting dry materials, and the waste heat of the dry materials can preheat wet materials at the position of the feeding pipe, so that the heat utilization efficiency is favorably improved.
Drawings
Fig. 1 is a schematic view of a granular material drying apparatus.
Detailed Description
Referring to fig. 1, the drying device for granular materials provided in this embodiment includes a drying box 1, a drying cavity is formed inside the drying box, a feeding pipe 11 is disposed in the center of the top of the drying box 1, a material lifting pipe 2 is disposed in the center of the drying cavity, a feeding gap 3 is formed between the bottom of the material lifting pipe 2 and the bottom surface of the drying box 1, and the feeding gap 3 is at least larger than the particle diameter of the granular materials to be dried, preferably more than 4 times the particle diameter, so that the materials can enter the material lifting pipe 2.
The drying device is characterized in that a spiral auger is installed in the material lifting pipe 2 and comprises a spiral shaft 4, the lower end of the spiral shaft 4 penetrates through the bottom of the drying box body 1 and is fixedly connected with an output shaft of a rotating motor 7 installed on a base 6 through a coupler, the spiral shaft 4 is matched with the bottom of the drying box body 1 through a rolling bearing, and spiral blades 5 are welded on the surface of the spiral shaft 4. The spiral auger is matched with the material lifting pipe 2 to lift the material at the bottom of the drying cavity to the top of the drying cavity.
The middle and lower section that rises material pipe 2 is cylindric pipeline, and the upper segment is formed by the pipe connection of the different shapes of multistage, including convergent pipeline 8, straight pipe 9 and round platform form pipeline 10, the broadside diameter of convergent pipeline 8 with the diameter of cylindric pipeline is the same, the broadside of convergent pipeline 8 with the one end fixed connection of cylindric pipeline, the narrow limit diameter of convergent pipeline 8 with the diameter of straight pipe 9 is the same, the narrow limit of convergent pipeline 8 with the one end fixed connection of straight pipe 9, the other end fixed connection of straight pipe 9 the parallelly connected logical bottom surface of round platform form pipeline 10.
Top surface fixed connection and the one end of a discharging pipe 12 of UNICOM of round platform form pipeline 10, discharging pipe 12 cover is established inside inlet pipe 11, the other end of discharging pipe 12 is equipped with the connector on the surface, for example connecting thread 22 to stretch out outside inlet pipe 11, can be through a connecting thread connection hose in order to conveniently collect dry material.
A material separating valve 13 is installed at the joint of the discharge pipe 12 and the circular truncated cone-shaped pipeline 10, a material dryness sensor 14 is arranged on the inner wall surface of the circular truncated cone-shaped pipeline 10, the number of the material dryness sensors 14 can be determined according to the actual situation, only one sensor is shown in the figure, but actually, a plurality of sensors, for example, more than 2 sensors, are available, so as to detect the material dryness more accurately.
The bottom surface of round platform form pipeline 10 has evenly arranged spilling material hole 15, the aperture in spilling material hole 15 is greater than the particle diameter of granule material, is provided with the linkage valve on corresponding every spilling material hole 15.
The material separating valve 13, the material dryness sensor 14 and the linkage valve are electrically connected with the control system. The opening and closing states of the material separation valve 13 and the linkage valve are opposite, namely when the linkage valve is opened, the material separation valve is closed, and when the linkage valve is closed, the material separation valve is opened. The specific opening and closing of the valve detects the material drying condition at the channel through the material dryness sensor 14, feeds a detection value back to the control system in real time, and when the detection value meets a preset value range set by the material drying requirement, the control system sends an instruction to open the material separating valve and close the linkage valve; when the detection value does not accord with the preset value range set by the material drying requirement, the control system sends an instruction to open the linkage valve and close the material separation valve.
Air cylinders 16 are mounted on two sides of the upper surface of the base 6, an expansion link 17 is connected to each air cylinder 16, a connecting plate 18 is mounted on the tops of the two expansion links 17, and the two connecting plates 18 are fixedly connected (for example, fixed through bolts) to two ends of the bottom of the drying box 1. Under the effect of cylinder 16 and telescopic link 17, both ends can the luffing motion within a certain range about the drying cabinet 1, impel the material to move to drying cavity central authorities, are favorable to the material to get into in the liter material pipe 2.
The particle material drying device also comprises a heat source required by drying materials, the heat source can be arranged inside the drying box body 1 to form an internal heat source, and also can be arranged outside the drying box body 1 to form an external heat source, and the heating and drying mode can adopt various modes such as electric heating, microwave heating, heat-conducting oil heating, hot air heating and the like, and preferably adopts hot air drying.
In order to monitor the heating condition in the drying cavity, a temperature sensor 21 is also installed inside the drying box body 1.
The operation of the drying device for granular materials provided by this embodiment is as follows: as shown in figure 1, the particle materials to be dried enter the drying cavity from the feeding pipe 11, fall on the outer surface of the circular truncated cone-shaped pipeline 10 and fall on the bottom of the drying cavity in a dispersed manner, the materials are fully contacted and dried with hot air in the falling process, the spiral auger is matched with the material lifting pipe 2 to lift the materials at the bottom of the drying cavity to the top of the drying cavity, and the materials fall back to the bottom of the drying cavity from the material spraying hole 15 at the bottom of the circular truncated cone-shaped pipeline 10 at the upper section of the material lifting pipe 2 for re-drying treatment. When the material dryness sensor 14 detects that the material dryness condition meets the material dryness requirement, the control system sends an instruction to open the material separating valve and close the linkage valve, the material does not fall back to the bottom of the drying cavity from the material sprinkling hole 15, but continues to move upwards under the action of the spiral auger, as the upward materials are continuously accumulated and increased, the material close to the discharge pipe 12 moves upwards under the extrusion of the spiral auger and the following material and is discharged through the discharge pipe 12, and the dried material at the discharge pipe is timely collected through the hose.
In the later stage of drying, because the material in the drying cavity reduces, the extrusion force of the material of which the bottom continuously moves upwards is lacked by the upward acting force of the spiral auger, and the dried material is difficult to be continuously discharged from the discharge pipe 12. Therefore, adjustments can be made from the following aspects.
On one hand, a telescopic spiral auger can be selected, the length of the output shaft of the spiral shaft 4 or the rotating motor 7 can be adjusted to be telescopic, and the spiral auger can be extended into the discharge pipe 12 when needed. On the other hand, a discharge port may be arranged in the center of the bottom of the drying box 1, a discharge valve 19 is arranged at the position corresponding to the discharge port, and a material collecting box 20 is mounted on a shaft body of the output shaft of the rotating electrical machine 7, which is located right below the discharge valve 19.
The material collecting box 20 is of a conical groove structure and is obliquely arranged, the bottommost part of the conical groove is provided with a material collecting port, and the material collecting port can be connected with a hose to collect dry materials in the material collecting box 20. Because under the effect of cylinder 16 and telescopic link 17, both ends can the luffing motion within a certain extent about the drying cabinet 1, impel remaining material to the discharge gate removal in the bottom center of drying cabinet 1 to retrieve the interior remaining dry material of drying cabinet.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (8)
1. A drying device for granular materials comprises a drying box body (1) and a heat source, wherein a drying cavity is formed inside the drying box body (1),
a feeding pipe (11) is arranged in the center of the top of the drying box body (1), a material lifting pipe (2) is arranged in the center of the drying cavity, and a feeding gap (3) is formed between the bottom of the material lifting pipe (2) and the bottom surface of the drying box body (1);
a spiral auger is installed in the material lifting pipe (2), the spiral auger comprises a spiral shaft (4), the lower end of the spiral shaft (4) penetrates through the bottom of the drying box body (1) and is fixedly connected with an output shaft of a rotating motor (7) installed on a base (6) through a coupler, the spiral shaft (4) is matched with the bottom of the drying box body (1) through a rolling bearing, and spiral blades (5) are welded on the surface of the spiral shaft (4);
the middle lower section of the material lifting pipe (2) is a cylindrical pipeline, the upper section of the material lifting pipe is formed by connecting a plurality of sections of pipelines with different shapes and comprises a gradually reducing pipeline (8), a straight circular pipe (9) and a circular truncated cone-shaped pipeline (10), the wide edge of the gradually reducing pipeline (8) is fixedly connected with one end of the cylindrical pipeline, the narrow edge of the gradually reducing pipeline (8) is fixedly connected with one end of the straight circular pipe (9), and the other end of the straight circular pipe (9) is fixedly connected with the bottom surface of the circular truncated cone-shaped pipeline (10) and communicated with the circular truncated cone-shaped pipeline (10);
the top surface of the circular truncated cone-shaped pipeline (10) is fixedly connected and communicated with one end of a discharge pipe (12), the discharge pipe (12) is sleeved inside the feed pipe (11), a connecting port is arranged on the surface of the other end of the discharge pipe (12), and the discharge pipe (12) extends out of the feed pipe (11);
a material separating valve (13) is mounted at the joint of the discharge pipe (12) and the circular truncated cone-shaped pipeline (10), a material dryness sensor (14) is arranged on the inner wall surface of the circular truncated cone-shaped pipeline (10), material sprinkling holes (15) are uniformly distributed on the bottom surface of the circular truncated cone-shaped pipeline (10), a linkage valve is arranged on each material sprinkling hole (15), and the material separating valve (13), the material dryness sensor (14) and the linkage valve are all electrically connected with a control system;
the drying box is characterized in that air cylinders (16) are mounted on two sides of the upper surface of the base (6), an expansion rod (17) is connected to the air cylinders (16), a connecting plate (18) is mounted at the top of the expansion rod (17), and the connecting plate (18) is fixedly connected to two ends of the bottom of the drying box body (1);
a discharge hole is formed in the center of the bottom of the drying box body (1), a discharge valve (19) is arranged at the position corresponding to the discharge hole, and a material collecting box (20) is mounted on a shaft body, right below the discharge valve (19), on an output shaft of the rotating motor (7);
the length of the output shaft of the spiral shaft (4) or the rotating motor (7) can be adjusted to stretch, and the spiral packing auger is extended into the discharge pipe (12).
2. The particulate material drying apparatus of claim 1, wherein the feed gap (3) is 4 times the particle size of the particulate material to be dried.
3. The particulate material drying apparatus of claim 2, wherein the connection port is a connection thread (22).
4. The particulate material drying apparatus of claim 3, wherein the connecting screw thread (22) is connected to a hose.
5. The particulate material drying apparatus of claim 4, wherein the number of material dryness sensors (14) is 2 or more.
6. The drying device for particulate material according to claim 1, wherein said connection plates (18) are fixed at both ends of the bottom of said drying box (1) by means of bolts.
7. The particulate material drying apparatus of claim 1, wherein the heat source is electrically, microwave, thermally conductive oil, or hot air.
8. Drying device for particulate material according to claim 1, characterised in that a temperature sensor (21) is installed inside the drying box (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811313442.6A CN109405515B (en) | 2018-11-06 | 2018-11-06 | Granular material drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811313442.6A CN109405515B (en) | 2018-11-06 | 2018-11-06 | Granular material drying device |
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| Publication Number | Publication Date |
|---|---|
| CN109405515A CN109405515A (en) | 2019-03-01 |
| CN109405515B true CN109405515B (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811313442.6A Active CN109405515B (en) | 2018-11-06 | 2018-11-06 | Granular material drying device |
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| CN (1) | CN109405515B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111578676B (en) * | 2020-05-29 | 2022-03-11 | 安徽玉梯建设有限公司 | Aggregate fast drying case for hydraulic and hydroelectric engineering concrete detection |
| CN114383918B (en) * | 2022-01-11 | 2023-06-23 | 长安大学 | ENM aerosol diffusion drying system |
| CN114963741A (en) * | 2022-05-30 | 2022-08-30 | 浙江伽能环境工程有限责任公司 | Sulfur drying and forming device |
| CN115751914A (en) * | 2022-08-16 | 2023-03-07 | 农业农村部南京农业机械化研究所 | Vertical internal circulation microwave convection coupling grain drying device and drying method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4373272A (en) * | 1980-09-25 | 1983-02-15 | General Electric Company | System for controlling spouted bed inlet conditions |
| CN205897789U (en) * | 2016-06-23 | 2017-01-18 | 天津市上德富国生物技术有限公司 | Fermented feed drying device |
| CN206094838U (en) * | 2016-09-12 | 2017-04-12 | 巢湖春友种业科技有限公司 | But heat energy cyclic utilization's seed hot air drying device |
| CN108692555A (en) * | 2017-04-07 | 2018-10-23 | 程长春 | Cereal vacuum dryer |
| CN108507338A (en) * | 2018-04-10 | 2018-09-07 | 陈璐滨 | A kind of damping type circular form industrial chemicals drying unit |
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Effective date of registration: 20211210 Address after: 518101 901, building A3, Baoya garden, Honglang North Road, Bao'an District, Shenzhen, Guangdong Province Patentee after: Chen Chuntao Address before: 243000 2, 1669 north section of Huo Li Shan Road, Ma'anshan high tech Zone, Anhui Patentee before: MAANSHAN NIUZE TECHNOLOGY SERVICE Co.,Ltd. |
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Effective date of registration: 20240807 Address after: No. 188, Chuangye 2nd Road, Lingzhi Garden Community, Xin'an Street, Bao'an District, Shenzhen City, Guangdong Province 518000, China 712 Patentee after: Shenzhen Qintai Industrial Development Co.,Ltd. Country or region after: China Address before: 518101 901, building A3, Baoya garden, Honglang North Road, Bao'an District, Shenzhen, Guangdong Province Patentee before: Chen Chuntao Country or region before: China |