DZLG Conical Screw Blender Drying Machine

The DZLG Conical Screw Blender Dryer features a heating cone with an enclosed heating jacket, powered by hot water, thermal oil, or low-pressure steam to maintain a consistent temperature on the inner wall of the cone. A variable-frequency speed motor, via a parallel helical bevel gear reducer, drives the single-screw blender to rotate, causing the material to spiral and rise from the bottom to the top of the cone-shaped cylinder. Upon reaching the peak, gravity and inertia guide the material to automatically flow back to the bottom of the cone-shaped cylinder. This entire process forcibly heats the material inside the cone-shaped cylinder, facilitating relative convection and mixing, with heat diffusing within the material. This results in a comprehensive, irregular reciprocating motion of the material, achieving high-frequency heat exchange between the material, screw, and cylinder wall surfaces, thereby attaining heating and drying effects in a short period of time.

I. Equipment Overview

DZLGConical Screw Blender DryerByThe heating cone is equipped with a heating jacket, powered by hot water, thermal oil, or low-pressure steam, thereby maintaining a certain temperature on the inner wall of the cone.The variable frequency speed motor drives the single-screw agitator to rotate through a parallel helical bevel gear reducer, causing the material to rotate and rise from the bottom to the top of the conical drum. Once the material reaches the top, gravity and inertia automatically guide it to flow back to the bottom of the drum. The entire process forces the material to be heated uniformly within the conical drum, allowing for heat exchange between the material and the screw and drum wall surfaces at high frequency. This achieves heating and drying effects in a short time.Thus, the internal moisture of the material is continuously evaporated. Under the action of the vacuum pump or induced draft fan, the steam is extracted by the fan. If liquid recovery is required, a condenser and a recovery liquid storage tank can be added. After drying is complete, open the discharge valve at the bottom to discharge the material.

The equipmentIs a specialized equipment for powder drying in industries such as pharmaceuticals, chemicals, pesticides, and food production.EquipmentCompletely transformed the shortcomings of traditional drying equipment, such as large size, high energy consumption, long processing time, low efficiency, high noise, tendency to clog, numerous leak points, and inconvenience in cleaning and maintenance; it is a versatile drying equipment with low energy consumption, high efficiency, and excellent performance among the similar domestic and international equipment used in the industry today.

TwoMain Structure:

This unit consists of a motor, reducer, frame, mechanical seal, hollow double-screw impeller, conical drum with jacketed heating, and discharge valve, etc.

Transmission and Sealing Components:

Composed of an electric motor, a reducer, a frame, and mechanical seals.

1.1Motor: Equipped with a variable frequency speed control motor, allowing the speed to be adjusted as needed during operation.

1.2Reducer: SLFA series helical bevel gear reducer, operates smoothly and reliably with low noise, and has a long service life.

1.3 Rack:Self-designed with high manufacturing precision. Equipped with two roller bearings, allowing adjustable stirrer height and radial swing.

1.4 Mechanical Seal: Single face sanitary type with material receiving flushing chamber, good sealing performance.

2. Blender

The hollow mixing shaft is connected to the hollow helical ribbon by separate support rods, forming a loop through which the heat medium can pass at the upper and lower ends connected to the hollow helical ribbon. To ensure that the material does not adhere to the drum wall, the gap between the helical ribbon and the drum wall is very small.

3. Vessel:

This section consists of the top cover, conical cylinder, discharge valve, etc.

3.1 Top Head: Supports the transmission section and agitator; all internal surface pipe connections are rounded transitions. All materials in contact with the material are 304. Process pipe openings include: DN400 Sanitary Manhole, Pressure Gauge, Inlet, Cleaning Port, Exhaust Port, etc.

3.2 Heated jacketed bottom cone: The inner surface is smooth with no dead corners, ensuring thorough drying of materials. During discharge, the rotation of the mixer facilitates quick and clean discharge.

3.3 Discharge Valve: Utilizes a plunger valveOr vacuum valveIts material discharge is fast, easy to operate, and leaves no residue or blind spots.

ThreeFeatures and Functions:

1. The equipment utilizes jacketed and internal helical heating, increasing the overall heating surface area by approximately 40%.

2．The unit features a single-screw agitator, which achieves a bottom-up circulation mixing effect, providing efficient forced heat transfer performance. The filling rate of materials is between 40%.8In 0% cases, achieve 100% heating utilization. Suitable for mixing and drying of fine materials.

3. Fully-sealed system, free from foreign matter contamination, with high cleanliness, especially suitable for mixing and drying of pharmaceutical intermediates and raw materials. Also applicable for mixing and drying of sterile raw materials.

4．Single-screw agitator has a small gap with the container wall, effectively preventing material from sticking to the surface of the vessel.

5. Utilizes a conical cylinder structure with small angles for quick, clean discharge without material accumulation.

6The equipment features a compact structure, smooth operation, excellent sealing, no lubrication leaks, easy operation, and a long service life.