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Drying device for surfaces of particulate materials

A technology for surface drying and granular materials, which is applied in the direction of drying gas arrangement, drying solid materials, drying, etc., which can solve the problems of low energy utilization efficiency of drying equipment, wear of airflow drying pipes, and high flow rate of hot air to improve drying efficiency. and equipment utilization, less environmental pollution, and high drying efficiency

Pending Publication Date: 2017-07-18
尹国祥
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flow rate of hot air gas is high, and the air drying pipe is severely worn; the temperature of hot air is too high, the thermal efficiency is low, and heavy oil is mostly used as fuel, and pollutants such as carbon oxides, sulfides, and polycyclic aromatic hydrocarbons produced by combustion are likely to cause environmental pollution; drying room All the hot and humid air that comes out is directly discharged into the atmosphere, but the discharged hot and humid air contains a lot of sensible heat and latent heat, which leads to low energy utilization efficiency of the drying equipment.

Method used

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  • Drying device for surfaces of particulate materials
  • Drying device for surfaces of particulate materials

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Effect test

Embodiment 1

[0028] As shown in the accompanying drawings, a device for drying the surface of granular materials includes a housing 1, a spiral turning mechanism, a trough 6 and a drying mechanism; the spiral turning mechanism, the trough 6 and the drying mechanism are all arranged in the casing Inside; the housing 1 is provided with a feeding port 2, which transports the material to the trough 6; Rotate and overturn the material; there is also a discharge port 7 below the trough 6; the drying mechanism includes an air film 18, an electric heating element 19 and an exhaust mechanism 10; On the side, the exhaust mechanism 10 is connected with the external drive mechanism, and the air in the housing 1 circulates between the air film 18 , the electric heating element 19 , the hopper 6 and the exhaust mechanism 10 under the action of the exhaust mechanism 10 . The spiral turning mechanism includes a spiral piece 31 and a spiral notch 32; the spiral piece 31 is integrally connected with the rot...

Embodiment 2

[0030] As shown in the accompanying drawings of the description, a device for drying the surface of granular materials includes a housing 1, a spiral turning mechanism, a trough 6 and a drying mechanism; Inside; the housing 1 is provided with a feeding port 2, which transports the material to the trough 6; Rotate and overturn the material; there is also a discharge port 7 below the trough 6; the drying mechanism includes an air film 18, an electric heating element 19 and an exhaust mechanism 10; On the side, the exhaust mechanism 10 is connected with the external drive mechanism, and the air in the housing 1 circulates between the air film 18 , the electric heating element 19 , the hopper 6 and the exhaust mechanism 10 under the action of the exhaust mechanism 10 . The spiral turning mechanism includes a spiral piece 31 and a spiral notch 32; the spiral piece 31 is integrally connected with the rotating shaft 4, and the two ends of the rotating shaft 4 are erected on the housi...

Embodiment 3

[0032] A control system based on the above-mentioned particle material surface drying device, including a temperature sensor, a humidity sensor, an airflow sensor, a speed detector and a controller; an electric heating element 19, an exhaust mechanism 10, a temperature sensor, a humidity sensor, and a speed detector The controller is electrically connected; the temperature sensor, the humidity sensor and the airflow sensor are all set in the casing 1; the speed detector is set on the spiral turning mechanism 3; the controller is also connected with the external driving mechanism.

[0033] The specific control method of the control system is as follows: the temperature sensor detects the air temperature value t1 in the housing 1 and sends a signal to the controller; the humidity sensor detects the air humidity value pw1 in the housing 1 and sends a signal to the controller; 1 The air flow rate sq1 in 1 sends a signal to the controller, and the speed detector detects the rotation...

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Abstract

The invention discloses a drying device for the surfaces of particulate materials. The drying device comprises a casing, a spiral material turning mechanism, a feed chute and a drying mechanism, wherein the spiral material turning mechanism, the feed chute and the drying mechanism are all arranged in the casing; a feeding opening is formed in the casing; materials are conveyed to the feed chute by the feeding opening; the spiral material turning mechanism is positioned in the feed chute and rotates and turns over the materials in the feed chute under the action of an external driving motor; a discharging opening is also formed in the lower part of the feed chute; the drying mechanism comprises an air film, an electric heating element and an exhaust mechanism; the exhaust mechanism is connected with an external driving mechanism; air in the casing circularly flows among the air film, the electric element, the feed chute and the exhaust mechanism under the action of the exhaust mechanism. By ingenious design of drying equipment and reasonable setting of a drying control system, the surfaces of the particulate materials are dried by continuous circulation of hot air, so the utilization rate of energy is high; in addition, the phenomenon of pollution to environment is avoided; the whole driving equipment is simple in structure and convenient to use and operate.

Description

technical field [0001] The invention relates to the technical field of drying equipment, in particular to a drying device for the surface of granular materials. Background technique [0002] The surface drying methods of granular materials mainly include rotary kiln drying, hot air convection drying, fluidized bed drying, infrared drying and microwave drying. Hot air convection drying usually uses heat energy generated by fuel oil and gas. When the surface of the granular material is in contact with hot air, the hot air transfers heat energy to the surface of the granular material, and then from the surface to the interior of the material. The moisture in the surface of the granular material diffuses from the surface of the material into the hot air through the air film. The flow rate of hot air gas is high, and the air drying pipe is severely worn; the temperature of hot air is too high, the thermal efficiency is low, and heavy oil is mostly used as fuel, and pollutants su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B17/20F26B21/00F26B21/04F26B21/08F26B25/04F26B25/00
CPCF26B17/20F26B21/001F26B21/004F26B21/04F26B21/08F26B25/00F26B25/04
Inventor 尹国祥
Owner 尹国祥