Rotary cone drying equipment

Abstract

The utility model discloses rotary cone drying equipment which comprises a feeding device, a shell ring I, a middle cone, a shell ring II, a material guide plate, a discharging device, a transmission device, a gear ring assembly, a rolling ring assembly and a fire box, the rotary cone adopts the scheme of a cylinder, a cone and a cylinder, saddles or foundations with different heights do not need to be additionally arranged, the design is simple, manufacturing and installation are easy and convenient, and the cost is low. The conical surface clamping cavity with the gradually-reduced sectional area is formed between the middle conical cylinder and the fire box, namely, the gap between the fire box and the cylinder body is gradually reduced, so that the flow speed of smoke at the high-temperature end is reduced, the retention time of the smoke at the high-temperature section is prolonged, and the heat exchange efficiency of the smoke and materials in the rotary cylinder is improved.

Description

Technical Field

[0001] The utility model relates to a large rotary drying device used in the chemical industry, which belongs to energy-saving and environmentally friendly equipment. Background Art

[0002] The chemical industry currently uses a rotary drum dryer, whose rotary drum is a cylinder slightly inclined at an angle to the horizontal line. The material is added from the material inlet at the higher end. As the drum rotates, the material moves to the lower end under the action of gravity and is discharged from the outlet at the lower end. The external fire box and the rotary drum form an isocircular cavity, in which the hot flue gas flows through the heating rotary drum, thereby drying the material inside the drum.

[0003] The rotating cylinder is manufactured and spliced ​​in sections, which has the following problems: first, in order to ensure the inclination angle of the rotating cylinder, it is necessary to consider the angle in sections in advance when designing the equipment or laying the foundation, which makes the design inconvenient; second, there are problems such as the inconsistency between the supports of the rotating cylinder of the equipment and the center line of the cylinder body, or the inconsistency between the heights of the saddles and the foundation, which brings difficulties to the equipment manufacturing and on-site construction. Summary of the invention

[0004] In order to solve the above problems, the utility model provides a rotary cone drying device, which has a simple design, does not require additional saddles or foundations of different heights, is easy to manufacture and install, and reduces equipment costs.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A rotary cone drying machine comprises: a feeding device, a cylinder section I, an intermediate cone, a cylinder section II, a material guide plate, a discharging device, a transmission device, a gear ring assembly, a rolling ring assembly, and a fire box, wherein the rotary cone is composed of the cylinder section I, the intermediate cone, and the cylinder section II, the front end of the cylinder section I is connected with the feeding device, the rear end is provided with a material guide plate, and the rolling ring assembly is installed; the intermediate cone is a conical cylinder; the front end of the cylinder section II is provided with a material guide plate, the rear end is connected with the discharging device, a manhole is provided, and the rolling ring assembly and the gear ring assembly are installed; the gear ring assembly is connected with the transmission device; and the fire box is installed on the outside of the cone.

[0007] The design points of this utility model:

[0008] 1. The rotary cone adopts the scheme of cylinder + cone + cylinder. The cylindrical bodies at both ends are convenient for the installation of the gear ring assembly for driving and the roller assembly for supporting on both sides of the rotary cylinder. The middle cone body meets the requirements of conveying materials from high to low through the inclination of the cone itself;

[0009] 2. At the connection between the cylinder section and the middle cone cylinder, in order to prevent material accumulation at the place where the cylinder inclination changes, an internal material guide plate is set to push the material forward and avoid material piling.

[0010] Beneficial effects of the utility model:

[0011] 1. During design, manufacturing and installation, it is sufficient to ensure that the axis of the equipment is level with the ground. There is no need to set up saddles of different heights or foundations of different heights.

[0012] 2. Set up internal guide plates to prevent material pile-up;

[0013] 3. A conical cavity with a gradually decreasing cross-sectional area is formed between the middle cone and the firebox, that is, the gap between the firebox and the cylinder gradually decreases, which reduces the flow rate of the flue gas at the high temperature end, increases the residence time of the flue gas in the high temperature section, and improves the heat exchange efficiency between the flue gas and the material inside the drum;

[0014] 4. The length of the drum and firebox can be shortened accordingly to save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a rotary cone drying equipment of the utility model.

[0016] In the figure: 1 feeding device, 2 cylinder section I, 3 intermediate cone, 4 cylinder section II, 41 guide plate, 5 discharging device, 6 transmission device, 7 gear ring assembly, 8 roller assembly, 9 fire box

[0017] a material inlet, b material outlet, c manhole, A smoke inlet, B smoke outlet DETAILED DESCRIPTION

[0018] A rotary cone drying device comprises: a feeding device 1, a cylinder section I 2, an intermediate cone 3, a cylinder section II 4, a material guide plate 41, a discharging device 5, a transmission device 6, a gear ring assembly 7, a rolling ring assembly 8, and a fire box 9.

[0019] Specific implementation process:

[0020] 1. Unloading: feeding device 1, cylinder section I 2, middle cone 3, copying plate 31, cylinder section II 4, guide plate 41, discharge device 5 fire box 9;

[0021] 2. Processing: all flange parts;

[0022] 3. Assembly welding: feeding device 1, cylinder section I 2, intermediate cone 3, copying plate 31, cylinder section II 4, guide plate 41, discharge device 5, fire box 9 and connecting flange;

[0023] 4. Purchase: gear ring, roller ring, transmission device 6, fasteners, seals;

[0024] 5. Installation: The cone part, feeding device 1, discharging device 5, and firebox 9 are processed and welded in the factory and then transported to the site for assembly. The installation steps are as follows:

[0025] 5.1 The cone part, the feeding device 1, and the discharging device 5 are assembled and welded into the main part through seals and fasteners;

[0026] 5.2 Install the assembled main body, gear ring assembly 7 and roller assembly 8;

[0027] 5.3 The ring gear assembly 7 is installed in coordination with the transmission device 6;

[0028] 5.4 The hub part of the drying equipment is assembled with the firebox 9;

[0029] 6. Inspection items: size, connection;

[0030] 7. Check the clearance between the rotary cone drying equipment and the two end plates of the firebox 9 by turning the dryer. Install the sealing device between the firebox 9 and the rotating hub after it meets the requirements.

Claims

1. A rotary cone drying device, comprising: A feeding device (1), a cylinder section I (2), an intermediate cone cylinder (3), a cylinder section II (4), a material guide plate (41), a discharging device (5), a transmission device (6), a gear ring assembly (7), and a rolling ring assembly (8), wherein the rotary cone cylinder is characterized in that the rotary cone cylinder is composed of a cylinder section I (2), an intermediate cone cylinder (3), and a cylinder section II (4); the front end of the cylinder section I (2) is connected to the feeding device (1), the rear end is provided with a material guide plate (41), and a rolling ring assembly (8) is installed; the intermediate cone cylinder (3) is a conical cylinder; the front end of the cylinder section II (4) is provided with a material guide plate (41), the rear end is connected to the discharging device (5), a manhole is provided, and a rolling ring assembly (8) and a gear ring assembly (7) are installed; the gear ring assembly (7) is connected to the transmission device (6); and the fire box (9) is installed on the outside of the cone cylinder.

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