SU992966A1 - Thermoradiation conveyer dryer - Google Patents

Description

(5) THERMORADIATION CONVEYOR DRYER

one

The invention relates to the technique of drying long products and can be used in the construction and other industries.

A thermoradiation dryer is known, comprising a chamber with vertically mounted in it parallel rows of sectional radiating panels with gas heating and an overhead conveyor placed between them, moving the wiped rail guide in an upright position 1.

The disadvantages of the famous dryer. It has high energy consumption, low js productivity and quality of drying.

The Thermoradiation conveyor dryer is also known, which contains a two-level drying chamber, in each floor of which there is a row of thermo- radiation heaters, a loading trolley and a chain conveyor,

The disadvantages of the known dryer are also high energy consumption.

and low productivity and quality of drying due to unproductive work of thermoradiation heaters when drying long products.

The purpose of the invention is to reduce energy consumption and increase productivity and quality when drying long products.

The goal is achieved by the fact that the dryer additionally contains a system for controlling the switching on and off of the conveyor and heaters, consisting of two tracking devices that simulate the movement of the dried products in the lower and upper rus of the drying chamber and include a set of switches ti running screws with pusher-carrying nuts interacting with switches.

Claims (2)

FIG. 1 shows schematically a thermoradiation conveyor dryer; in fig. 2 shows a section A-A in FIG. in fig. 3 A follow-up device that simulates the movement of dried items. Thermoradiation conveyor dryer contains dual pass-through painting chamber 1, two-stage drying chamber 2 with thermoradiation heaters 3 chain conveyor with grippers 5 loading car 6, unloading car 7, tpaBepCbi 8 for suspension of long products 9 two following devices 1 simulating the movement of drying products respectively, in the lower and upper rus, and electric switches 11 and 12. The next device 10 consists of a drive 13i of the running screw with nuts 15, carrying the pushers 16, and switches 17. Dryer It works as follows. A traverse 8 with a lengthy product 9 suspended on it is loaded onto the carriage 6. Depending on the complexity of the cross section of the product E, a certain speed of movement of the carriage 6 is set during coloring. Turning on the unit and the mode of drying are performed using a time relay, depending on the composition of the applied paintwork. Further, the plant control system can operate in automatic mode. One of the speeds is turned on with the water of the loading carriage 6, and the product 9 enters the dual pass-through painting chamber 1, where it produces the painting of the panel. Further, at the exit of the spray booth 1 at a certain distance from the camera 2, the loaded cart 6 acts on the electric switch 11, which includes a time relay and one of the two following simulators 10. The simulator 10 is displaced by the bodies 16 moving at a speed proportional to the speed movement of the workpiece, acts sequentially on the switches 17, sequentially including the first, second, etc. the sections of the heater 3 at intervals of time, depending on the speed of movement of the product in the paint chamber. When the product 9 enters the chamber 2, the first section of the heaters 3 will already be heated and will enter operating mode. Simultaneously with the switching on of the modeling device 10, the countdown of the drying time is started. According to the time relay signal (when the trolley is fully inserted), the simulator 10 acts by pushing the switches 16 on the switches 17 in reverse order at a speed equal to the switching on speed of the heater section 3. The drive motor 13 of the simulator 10 operates to turn on the sections until the last section is turned on or before receiving the signal from the time relay to terminate the switching on of the heater section 3, which is, under the condition that the trolley of loading 6 is completely rolled into the chamber 2, a signal to start the disconnection of the heater sections 3. Use mations proposed setup allows save elektroanergiyu due to enable and disable the stepped sections thermoradiation heaters 3, to increase productivity of the plant by the presence in the control system of two simulators, which are possible during operation of two products drying. The invention of the Thermoradiation conveyor dryer containing a two-level drying chamber, in each floor of which a series of thermoradiation heaters are located, a loading carriage and a chain conveyor, characterized in that, in order to reduce energy consumption and improve productivity and quality when drying long products, it additionally contains control system for switching on and off of the conveyor and heaters, consisting of two follow-up devices that simulate the movement of dried products corresponding to in the lower and upper russes of the drying chamber and the switches being turned on, and the driving screws with the nuts carrying the pushers interacting with the switches. Sources of information taken into account during the examination 1. USSR author's certificate N.503.105, cl. F 26 B 15/12, 1971. 2. The author's certificate of the USSR N 337623, cl. F 26 B 15/12, 1970. FIG. I  v D