CN203704633U

CN203704633U - Energy-saving rotary kiln with built-in electric heating tubes

Info

Publication number: CN203704633U
Application number: CN201420093666.1U
Authority: CN
Inventors: 李德旗; 张海涛; 姚正青
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-03-03
Filing date: 2014-03-03
Publication date: 2014-07-09
Anticipated expiration: 2024-03-03

Abstract

The utility model relates to an energy-saving rotary kiln with built-in electric heating tubes and belongs to the field of thermal treatment. The energy-saving rotary kiln with the built-in electric heating tubes comprises a rotating barrel, the rotating barrel is arranged on a support device and connected with a motor, the axis of the discharge end of the rotating barrel is fixedly provided with a rotating shaft, and the wall of the rotating barrel is uniformly provided with 6-9 electric heating tubes in the axial direction; every electric heating tube is connected with an electric heating tube A-phase lead wire and an electric heating tube B-phase lead wire, the electric heating tube A-phase lead wire is connected with an A-phase slip ring, the electric heating tube B-phase lead wire is connected with a B-phase slip ring, and the A-phase slip ring and the B-phase slip ring are coaxially mounted on the rotating shaft. The energy-saving rotary kiln with the built-in electric heating tubes also comprises a slip ring stator support, the upper end of the slip ring stator support is fixedly provided with a slip ring stator body, and an A-phase carbon brush and a B-phase carbon brush are fixed onto the slip ring stator body, wherein the A-phase carbon brush is in frictional contact with the A-phase slip ring and is connected with an A-phase power wire, and the B-phase carbon brush is in frictional contact with the B-phase slip ring and is connected with a B-phase power wire. The energy-saving rotary kiln with the built-in electric heating tubes achieves a high heat utilization rate.

Description

Built-in electric heating pipe energy-saving kiln

Technical field

The utility model relates to a kind of built-in electric heating pipe energy-saving kiln, belongs to Field of Heat-treatment.

Background technology

At present, for the powder between 200 ℃～1000 ℃ of roastings or the kiln of particulate material powder body material, most of " partition-wall heat transfer formula " rotary furnace that adopts, there is the stainless steel rotating cylinder of a horizontal layout, the bottom of rotating cylinder outer wall, be furnished with heat source (or electrical heating or gas heating or coal heating), heat, by the conduction heat transfer of drum wall, transfers heat to the product in rotating cylinder.Rotating cylinder is constant slope, powder flows toward low side from high-end in the rotating cylinder rotating, and in mobile process, the material rotating plate that is disposed in rotating cylinder inwall ceaselessly stirs, be heated more even, rotating cylinder two ends, adopt seal box to carry out dynamic seal (packing) to rotating cylinder two ends, " partition-wall heat transfer formula " the external heat rotary furnace generally using at present, first cylindrical shell to be heated with the heat that heat source produces, by cylindrical shell partition-wall heat transfer, heat is passed to material again, heat utilization ratio is low.

Utility model content

According to above deficiency of the prior art, the technical problems to be solved in the utility model is: the built-in electric heating pipe energy-saving kiln that a kind of heat utilization ratio is high is provided.

Built-in electric heating pipe energy-saving kiln described in the utility model, comprise rotating cylinder, rotating cylinder is arranged on bracing or strutting arrangement, rotating cylinder connects motor, axle center place, rotating cylinder discharge end end fixed rotating shaft, uniform 6-9 bar electrothermal tube vertically in drum wall, every electrothermal tube all connects electrothermal tube A phase terminal and electrothermal tube B phase terminal, electrothermal tube A phase terminal connects A phase slip ring, and electrothermal tube B phase terminal connects B phase slip ring, and A phase slip ring and B phase slip ring are coaxially arranged in rotating shaft;

Comprise slip ring stator support, slip ring stator body is fixed in slip ring stator support upper end, fixes A phase carbon brush and B phase carbon brush on slip ring stator body, A phase carbon brush and A phase slip ring CONTACT WITH FRICTION, B phase carbon brush and B phase slip ring CONTACT WITH FRICTION, A phase carbon brush connects A phase power line, and B phase carbon brush connects B phase power line.

Between A phase slip ring and B phase slip ring, establish slip-ring rotor intermediate insulation body, A phase slip ring and B phase slip ring are kept apart, prevent short circuit.

Between A phase carbon brush and B phase carbon brush, establish slip ring stator intermediate insulation body, A phase carbon brush and B phase carbon brush are kept apart, prevent short circuit.

On rotating cylinder outer wall, establish heat-insulation layer.

Rotating cylinder inwall and electrothermal tube carborundum inorganic material, can bear the temperature of 1000 ℃～1300 ℃.

Operation principle and process:

When work, driven by motor rotating cylinder rotates, A phase slip ring and B phase slip ring also rotate with rotating shaft simultaneously, A phase carbon brush is pressed on A phase slip ring all the time by self spring, B phase carbon brush is pressed on B phase slip ring all the time by self spring, make A phase carbon brush and A phase slip ring, B phase carbon brush and B phase slip ring remain "on" position, A phase power line and B phase power line are powered to electrothermal tube continuously, electrothermal tube persistent fever, material rotates upset and repeats to contact with electrothermal tube with rotating cylinder, heating surface (area) (HS is large, and the efficiency of heating surface is high, and energy utilization rate is high.

The beneficial effect that the utility model compared with prior art had is:

Built-in electric heating pipe energy-saving kiln described in the utility model, adds thermal material by electrothermal tube, and the sustainable heating of electrothermal tube, and heating surface (area) (HS is large, and the efficiency of heating surface is high, and energy utilization rate is high.

Accompanying drawing explanation

Fig. 1 is the utility model embodiment schematic diagram.

In figure: 1, rotating cylinder; 2, heat-insulation layer; 3, electrothermal tube; 4, electrothermal tube A phase terminal; 5, electrothermal tube B phase terminal; 6, B phase slip ring; 7, slip-ring rotor intermediate insulation body; 8, A phase slip ring; 9, B phase carbon brush; 10, A phase carbon brush; 11, slip ring stator intermediate insulation body; 12, slip ring stator body; 13, slip ring stator support; 14, A phase power line; 15, B phase power line; 16, rotating shaft.

The specific embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:

As shown in Figure 1, built-in electric heating pipe energy-saving kiln described in the utility model, comprise rotating cylinder 1, rotating cylinder 1 is arranged on bracing or strutting arrangement, and rotating cylinder 1 connects motor, rotating cylinder 1 axle center place, discharge end end fixed rotating shaft 16, uniform 6-9 bar electrothermal tube 3 vertically on rotating cylinder 1 wall, every electrothermal tube 3 all connects electrothermal tube A phase terminal 4 and electrothermal tube B phase terminal 5, and electrothermal tube A phase terminal 4 connects A phase slip ring 8, electrothermal tube B phase terminal 5 connects B phase slip ring 6, and A phase slip ring 8 and B phase slip ring 6 are coaxially arranged in rotating shaft 16;

Comprise slip ring stator support 13, slip ring stator body 12 is fixed in slip ring stator support 13 upper ends, on slip ring stator body 12, fix A phase carbon brush 10 and B phase carbon brush 9, A phase carbon brush 10 and A phase slip ring 8 CONTACT WITH FRICTION, B phase carbon brush 9 and B phase slip ring 6 CONTACT WITH FRICTION, A phase carbon brush 10 connects A phase power line 14, and B phase carbon brush 6 connects B phase power line 15.

Between A phase slip ring 8 and B phase slip ring 6, establish slip-ring rotor intermediate insulation body 7, A phase slip ring 8 and B phase slip ring 6 are kept apart, prevent short circuit.

Between A phase carbon brush 10 and B phase carbon brush 9, establish slip ring stator intermediate insulation body 11, A phase carbon brush 10 and B phase carbon brush 9 are kept apart, prevent short circuit.

On rotating cylinder 1 outer wall, establish heat-insulation layer 2.

1 wall and electrothermal tube 3 carborundum inorganic material in rotating cylinder, can bear the temperature of 1000 ℃～1300 ℃.

Operation principle and process:

When work, driven by motor rotating cylinder 1 rotates, A phase slip ring 8 and B phase slip ring 6 also rotate with rotating shaft 16 simultaneously, A phase carbon brush 10 is pressed on A phase slip ring 8 all the time by self spring, B phase carbon brush 9 is pressed on B phase slip ring 6 all the time by self spring, make A phase carbon brush 10 and A phase slip ring 8, B phase carbon brush 9 and B phase slip ring 6 remain "on" position, A phase power line 14 and B phase power line 15 are powered to electrothermal tube 3 continuously, electrothermal tube 3 persistent fevers, material rotates upset and repeats to contact with electrothermal tube 3 with rotating cylinder 1, heating surface (area) (HS is large, and the efficiency of heating surface is high, and energy utilization rate is high.

Claims

1. a built-in electric heating pipe energy-saving kiln, comprise rotating cylinder (1), it is characterized in that: rotating cylinder (1) is arranged on bracing or strutting arrangement, rotating cylinder (1) connects motor, rotating cylinder (1) discharge end end axle center place fixed rotating shaft (16), uniform 6-9 bar electrothermal tube (3) vertically on rotating cylinder (1) wall, every electrothermal tube (3) all connects electrothermal tube A phase terminal (4) and electrothermal tube B phase terminal (5), electrothermal tube A phase terminal (4) connects A phase slip ring (8), electrothermal tube B phase terminal (5) connects B phase slip ring (6), A phase slip ring (8) and B phase slip ring (6) are coaxially arranged in rotating shaft (16),

Comprise slip ring stator support (13), slip ring stator body (12) is fixed in slip ring stator support (13) upper end, the upper fixing A phase carbon brush (10) of slip ring stator body (12) and B phase carbon brush (9), A phase carbon brush (10) and A phase slip ring (8) CONTACT WITH FRICTION, B phase carbon brush (9) and B phase slip ring (6) CONTACT WITH FRICTION, A phase carbon brush (10) connects A phase power line (14), and B phase carbon brush (6) connects B phase power line (15).

2. built-in electric heating pipe energy-saving kiln according to claim 1, is characterized in that: between A phase slip ring (8) and B phase slip ring (6), establish slip-ring rotor intermediate insulation body (7), A phase slip ring (8) and B phase slip ring (6) are kept apart.

3. built-in electric heating pipe energy-saving kiln according to claim 1, is characterized in that: between A phase carbon brush (10) and B phase carbon brush (9), establish slip ring stator intermediate insulation body (11), A phase carbon brush (10) and B phase carbon brush (9) are kept apart.

4. built-in electric heating pipe energy-saving kiln according to claim 1, is characterized in that: on rotating cylinder (1) outer wall, establish heat-insulation layer (2).

5. built-in electric heating pipe energy-saving kiln according to claim 1, is characterized in that: in rotating cylinder, (1) wall and electrothermal tube (3) are used carborundum inorganic material.