GZG Tube Bundle Dryer

Tube Bundle Dryer

Applications:

1. The drying machine is suitable for drying the loose materials, for example: powder, particle and slice shape without big particles.

2. Application in chemical industry, food industry, feed industry and other industries, for example: starch factory, feed factory, meat processing factory, wine factory, beer factory and so on.

Technical parameters:

Product details:

General descriptions:

• The Tube Bundle Dryer is based on the conduction mode for drying. The product to be heated and dried only contacts steam heated tubes, and not directly steam. Tube bundles are operated on the counter-flow principle (i. e. steam flows in the direction opposite t0 the direction of the material flow). The Tube Bundle Dryers are designed by considering the wet and dry product flow characteristics, lump crust formation tendency and thermal sensitivity of the material in dry condition.
• In the Tube bundle Dryer the tubes are arranged in a circumferential manner on the inner periphery of the rotating shell. This entire shell and tubes assembly is supported on tyres / rollers & driven through suitable gear drive. Wet feed material is fed through material inlet nozzle installed at one end of the shell of dryer. This wet feed is fed through Screw Feeder. Feed material showered on the tubes with the help of lifting blades which are mounted on the rotating shell. Steam enters in the tubes through rotating joint installed at material discharge end of the shell. Material gets dried & discharged from the material discharge ports on the shell. Vapours are removed from the feed end with the help of suction blower after separating fines in the cyclone separator. The suitable sealing arrangement is provided to prevent air leakage and product losses.
• The Tube Bundle is rotated inside the stationary isolated housing. Steam is passed though one end of Tube Bundle for drying and condensate is removed from the other end. Wet feed Material to be dried is fed into the stationary dryer housing from Feed Nozzle at one end. The material gets lifted up & showered on tubes with the help of lifting blades provided on tube bundle periphery. Material gets dried by conduction heat transfer & it is discharged from the other end.

Features of GZG Series Tube Bundle Dryer :

GZG Series Tube Bundle Dryer (Pipe Bundle Dryer)is the indirect heated, contact type drying machine which can be both parallel flow and the counter-flow drying. It is extremely economic and practical. Among all kinds of the drying machines, it is the lowest in its power consumption and heat consumption. Evaporating one kg of water only consumes 1.5 to 2kg steam, only 50% of the fluidizing dryer’s consumption. Drying one ton fermented grass powder consumes 15kW/h, only 25% compare to fluid- bed. Both the electric power consumption and the steam consumption reach the advanced level of the same kind products. The materials with high water content can be dried, the drying flexibility is wide. The drying time can be adjusted according to the materials’ property and moisture requirement. It can be continuous operation of high automation, or intermittent operation for special technical process. The machine has less accessories, compact technical process and occupies a small area, besides, it’s easy to install.

Description of equipment structure and material

• feeding and discharging point can be determined by customer’s or processing demand.
• The exhaustion system use top air sucking plan, the exhaust air will be entering the dedusting air cyclone separator(separated purchasing) under the negative pressure and the air exhaustion exit can ensure that there is no dust being discharged.
• The outside thermal keeping use &=50mm rock cotton.
• The low cylinder of the bundled-tube uses &=4mm stainless steel plate, the upper cylinder uses &=3mm stainless steel plate; the baffling plate uses &=3mm stainless steel; the heating tube uses GB9948/20# petroleum cracking tube; the rest of which use carbon steel.
• the joint between the tube and tube plate use expansion tube to ensure the connection strength and prolong the operation longevity.

General description on safety

In case of malfunction or failure of the equipment, necessary protective measures shall be taken to ensure that the equipment and products remain in a safe state. Provide the following facilities to ensure the safety of personnel, products and equipment:

A) Proper fault detection and alarm notification

- Pressure transmitter for operating gas : the equipment cannot start or the atomizer cannot spray when the gas pressure is too low. (optional)

- Pressure transmitter in the container: when the positive pressure in the container exceeds the set value, the inlet and outlet valves will automatically close to ensure the safety of the operator and the room. (optional)

- Pressure transmitters for each airbag of the equipment (limited to airbag sealing device if necessary): when the air pressure of each airbag seal of the equipment is too low or leakage occurs, the equipment will not be able to start or alarm or stop. (optional)

- Current and voltage transmitter: when the current and voltage are too high or too low during the operation of the equipment, the operator will be notified to stop the machine for detection or automatic shutdown. (optional)

B) Warning sign of host/main set

- warnings for all hot/main set surfaces.

- the warning signs are shown below:

- all rotating parts shall be properly sealed.

C) The button of emergency stop shall be located in an area accessible to the operator

- The button for emergency stop is set on the operation screen of the man-machine interface, which is easy to operate.

D) Noise 1m away from the device is below 75 db.

- After the noise source is isolated, the noise of the device can be less than 75db.

E) Set a good grounding device at each isolation place of the equipment ,so as to better eliminate the static electricity generated when the equipment works.

F) Power failure and recovery

- In case of power failure, in order to protect the operator, the equipment itself and the product, the equipment is in a stop state.

- It is necessary that human intervention should be required to re-start the power, and the equipment cannot run automatically as required by GMP when the power is resupplied.

Features of material

Flowchart:

1. material inlet

2. driving device

3. steam connector

4. exterior shell

5. exhaust opening

6. foundation

7. interior element of pipe bungle

8. material outlet

9. steam outlet connector