阅读说明：本技术 一种节能环保的高效变频烘干装置 (Energy-concerving and environment-protective high-efficient frequency conversion drying device ) 是由 刘冠诚 刘玉梅 于 2021-07-29 设计创作，主要内容包括：本发明提供了一种节能环保的高效变频烘干装置,包括下料斗、干燥塔、热风供给系统和扩散器,所述干燥塔顶部设置下料斗,所述热风供给系统的输出端设置热风扩散器,所述热风扩散器设置在干燥塔内的下部,所述热风扩散器的开口向上设置。本发明通过热风供给系统提供的热风对褐煤等物料进行干燥,具有热交换效率高的效果,能够最大程度的对目标物进行热能供给,热风供给系统的出口段设置的扩散器能将热风扩散开来,且扩散口向上设置,能使热风充分与目标物均匀接触,提高干燥效率和质量,本装置使用变频电源对感应线圈进行加热的方式,加热速度迅速,效率高,且节能环保,不对环境造成污染。(The invention provides an energy-saving and environment-friendly efficient variable-frequency drying device which comprises a discharging hopper, a drying tower, a hot air supply system and a diffuser, wherein the discharging hopper is arranged at the top of the drying tower, the hot air diffuser is arranged at the output end of the hot air supply system and is arranged at the lower part in the drying tower, and the opening of the hot air diffuser is arranged upwards. The device dries the materials such as brown coal and the like by the hot air provided by the hot air supply system, has the effect of high heat exchange efficiency, can supply heat energy to a target object to the greatest extent, can diffuse the hot air by the diffuser arranged at the outlet section of the hot air supply system, is provided with the diffusion port upwards, can ensure that the hot air is fully and uniformly contacted with the target object, and improves the drying efficiency and quality.)

1. The utility model provides an energy-concerving and environment-protective high-efficient frequency conversion drying device, includes hopper (3), drying tower (5), hot-blast feed system down, its characterized in that hopper (3) under drying tower (5) top sets up, hot-blast feed system's output sets up hot air diffuser (6), hot air diffuser (6) set up the lower part in drying tower (5), the opening of hot air diffuser (6) upwards sets up, the top of drying tower (5) sets up exhaust hole (10), the bottom sets up out hopper (12).

2. The energy-saving and environment-friendly efficient variable-frequency drying device according to claim 1, wherein the hot air supply system comprises a hot air pipe (7), a heating pipe (8), a variable-frequency power supply (13) and an induction coil (14), the induction coil (14) is wound outside the heating pipe (8), the induction coil (14) is connected with the variable-frequency power supply (13), the output end of the heating pipe (8) is connected with the hot air pipe (7), and the output end of the hot air pipe (7) is connected with the hot air diffuser (6).

3. The energy-saving and environment-friendly efficient variable-frequency drying device as claimed in claim 1, wherein a blanking pipe (4) is arranged at the lower end of the blanking hopper (3), and a damping plate (9) is horizontally arranged at the lower end of the blanking pipe (4).

4. The energy-saving and environment-friendly efficient variable-frequency drying device as claimed in claim 1, wherein the drying tower (5) comprises a cylindrical cavity (51) and a bucket-shaped cavity (52), the bucket-shaped cavity (52) is arranged at the lower part of the cylindrical cavity (51), the damping plate (9) is arranged in the cylindrical cavity (51), and the diffuser (6) is arranged in the bucket-shaped cavity (52).

5. The energy-saving and environment-friendly efficient variable-frequency drying device as claimed in claim 1 or 2, wherein the hot air diffuser (6) is arranged as a bell mouth, and the bell mouth is arranged opposite to the damping plate (9).

6. The energy-saving and environment-friendly efficient variable-frequency drying device as claimed in claim 1, wherein the hot air pipes (7) are arranged in parallel and staggered up and down, the number of the hot air diffusers (6) at the output ends of the hot air pipes (7) is consistent with that of the hot air pipes (7), and the hot air diffusers are mutually sleeved and concentrically arranged.

7. The energy-saving environment-friendly efficient variable-frequency drying device as claimed in claim 1 or 2, wherein the distance between the opening of the hot air diffuser (6) and the damping plate is 700-800 cm.

8. The energy-saving and environment-friendly efficient variable-frequency drying device as claimed in claim 6 or 7, wherein the diameters of the openings of the hot air diffuser (6) are different, wherein the maximum diameter is 100-120 cm, and the minimum diameter is 25-35 cm.

9. The energy-saving and environment-friendly efficient variable-frequency drying device as claimed in claim 2, wherein the heating pipe (8) is a carbon silicon tube, and the variable-frequency power supply (13) is connected with a cooling system.

10. The energy-saving environment-friendly high-efficiency variable-frequency drying device as claimed in claim 1, wherein the openings of the hot air diffuser (6) are in the same horizontal position and have different heights.

Technical Field

The invention belongs to the field of energy-saving and environment-friendly drying equipment, and particularly relates to an energy-saving and environment-friendly efficient variable-frequency drying device.

Background

Lignite, particularly young lignite, often contains rare resources such as montan wax, humic acid, germanium and the like. The classification and quality-based utilization is to develop related products or clean energy according to the characteristics of coal, so that the resources and benefits are maximized. Several common direct utilization methods of lignite are: the method comprises the steps of combustion, pyrolysis, coking, liquefaction, gasification, lignite wax extraction, lignite humic acid production and the like, and is key to clean, efficient, economical and large-range utilization of lignite due to the fact that the water content of the lignite reaches 30-65% and efficient dehydration and quality improvement treatment of the lignite. So far, the drying technology of the lignite in China is based on a rotary kiln, and the heat source of the method is provided by high-calorific-value coal, so that a large amount of carbon dioxide and sulfur-containing substances are discharged, the energy consumption is high, the efficiency is low, and the environment is seriously influenced. Therefore, the development of an energy-saving and environment-friendly high-efficiency variable-frequency drying device has important practical value.

Disclosure of Invention

The invention aims to provide an energy-saving and environment-friendly efficient variable-frequency drying device with high heat energy utilization rate and good environment friendliness.

The invention aims to realize the purpose, and the drying device comprises a discharging hopper, a drying tower, a hot air supply system and a diffuser, wherein the discharging hopper is arranged at the top of the drying tower, the hot air diffuser is arranged at the output end of the hot air supply system and is arranged at the lower part in the drying tower, the opening of the hot air diffuser is upwards arranged, the exhaust hole is arranged at the top of the drying tower, and the discharging hopper is arranged at the bottom of the drying tower.

Compared with the prior art, the invention has the following advantages and effects:

1. the drying device is suitable for drying materials with water content of more than 50 percent (such as lignite, tailings, sludge, fruit and vegetable domestic garbage and the like) by changing a feeding mode.

2. The angle of the diffuser is adjusted from 50-65 degrees and the height is adjusted from 30-120cm according to different materials.

3. The drying temperature required by different materials can be instantly adjusted by the power of the variable frequency power supply, and can be automatically controlled.

4. The air volume of the hot air can be adjusted through a hot air outlet valve and can also be automatically controlled.

5. The diameter of the drying tower is from 100cm to 300cm, the height of the drying tower is from 300cm to 1000cm, and the drying tower is adjusted according to different materials and production capacities, so that the flexibility is strong.

The device dries materials such as brown coal and the like through hot air provided by the hot air supply system, has high heat exchange efficiency, can supply heat energy to a target object to the greatest extent, can diffuse the hot air through the diffuser arranged at the outlet section of the hot air supply system, can ensure that the hot air is fully and uniformly contacted with the target object by arranging the diffusion opening upwards, and improves the drying efficiency and quality.

Drawings

FIG. 1 is a schematic cross-sectional view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the structure and the internal material and hot air flowing direction thereof;

FIG. 3 is a schematic top view of a hot air diffuser in accordance with one embodiment of the present invention;

in the figure, 1-crusher, 2-crusher, 3-blanking hopper, 4-blanking pipe, 5-drying tower, 51-cylindrical cavity, 52-hopper-shaped cavity, 6-hot air diffuser, 7-hot air pipe, 8-heating pipe, 9-damping plate, 10-exhaust hole, 11-air inlet, 12-blanking hopper, 13-variable frequency power supply and 14-induction coil.

Detailed Description

The invention is further described with reference to the accompanying drawings, but the invention is not limited in any way, and any alterations or substitutions based on the teaching of the invention are within the scope of the invention.

As shown in fig. 1 to 2, the present invention includes a discharging hopper 3, a drying tower 5, a hot air supply system and a diffuser 6, wherein the discharging hopper 3 is disposed at the top of the drying tower 5, the hot air diffuser 6 is disposed at the output end of the hot air supply system, the hot air diffuser 6 is disposed at the lower part in the drying tower 5, the opening of the hot air diffuser 6 is disposed upward, the top of the drying tower 5 is provided with an exhaust hole 10, and the bottom of the drying tower 5 is provided with a discharging hopper 12.

The hot air supply system comprises a hot air pipe 7, a heating pipe 8, a variable frequency power supply 13 and an induction coil 14, wherein the induction coil 14 is wound outside the heating pipe 8, the induction coil 14 is connected with the variable frequency power supply 13, the output end of the heating pipe 8 is connected with the hot air pipe 7, and the output end of the hot air pipe 7 is connected with a hot air diffuser 6.

The lower end of the blanking hopper 3 is provided with a blanking pipe 4, and the lower end of the blanking pipe 4 is horizontally provided with a damping plate 9.

The drying tower 5 comprises a cylindrical cavity 51 and a hopper-shaped cavity 52, the hopper-shaped cavity 52 is arranged at the lower part of the cylindrical cavity 51, the damping plate 9 is arranged in the cylindrical cavity 51, and the hot air diffuser 6 is arranged in the hopper-shaped cavity 52.

The hot air diffuser 6 is arranged to be a bell mouth, and the bell mouth is arranged right opposite to the damping plate 9.

The hot air pipes 7 are arranged in parallel and staggered up and down, the number of the hot air diffusers 6 at the output ends of the hot air pipes 7 is consistent with that of the hot air pipes 7, and the hot air diffusers 6 are mutually sleeved and concentrically arranged.

The hot air pipes 7 are arranged in parallel and staggered up and down, the number of the hot air diffusers 6 at the output ends of the hot air pipes 7 is consistent with that of the hot air pipes 7, and the position relation is staggered.

The distance between the opening of the hot air diffuser 6 and the damping plate is 700-800 cm.

The diameters of the openings of the heat diffuser 6 are different, wherein the maximum diameter is 100-120 cm, and the minimum diameter is 25-35 cm.

The heating pipe 8 is a carbon silicon tube, and the variable frequency power supply 13 is connected with a cooling system.

The openings of the hot air diffuser 6 are in the same horizontal position and have different heights.

The lower hopper 3 is connected with the output end of the crusher 2.

The input end of the crusher 2 is connected with the output end of the crusher 1.

The diffuser 6 set up 3 groups, every diameter of a set of is different, three diffuser of group overlap each other and establish, set up with one heart.

The diffuser 6 set up 3 groups, each group diameter is different, three groups diffusion dislocation from top to bottom, the non-concentric setting.

The diffusers 6 are provided in 3 groups, each group has different diameters, and the openings of the three groups of diffusers 6 have height differences.

The diffuser 6 is provided with 3 groups, namely three large groups, medium groups and small groups, and the opening diameters are 110cm, 80cm and 30cm respectively.

The hot air pipe 7 is provided with a flow control valve.

The discharge hopper 12 and the drying tower 5 are designed in a separated mode.

The working principle and the working process of the invention are as follows:

the material object of the invention is brown coal, the material is coarsely crushed by a crusher 1 and then sent to a crusher 2 to be crushed into 10-30 meshes, the crushed material is sent to a blanking hopper 3 and sent into a drying tower 5 through a blanking pipe 4, the crushed material is dispersed and dried upwards by the dispersed hot air flow of a hot air diffuser 6, the dried material blown upwards is returned by a damping plate 9, the material heavier than air falls down to the inner side of the drying tower 5 and falls down through a discharging hopper 12 and is collected, and the waste gas is discharged to a smoke purifier through an exhaust hole 10 and is discharged after purification. The heating pipe 8 is heated to a set temperature by a variable frequency power supply 13 and an induction coil 14 of a heat source of the drying tower, air is blown into the heating pipe by an external Roche fan to become high-temperature air flow, the high-temperature air flow is sent into the drying tower through a hot air pipe to dry materials, and the flow of each diffuser is controlled by a flow control valve on the hot air pipe. The practical data prove that the drying efficiency of the drying tower can reach 200 kg/min.