Dynamic material calcining device

Abstract

A material dynamic calcining device belongs to the technical field of calcining equipment. The dynamic material calcining device comprises a pair of furnace covers, a furnace body, a quartz tube and a furnace body base, and the furnace covers are buckled at the two ends of the furnace body; the quartz tube is inserted into the furnace body along the central axis of the furnace body and is in butt joint with the furnace cover, and a sealing ring is arranged between the furnace cover and the quartz tube at the butt joint part for sealing; the furnace cover is provided with air vents, and the two ends of the quartz tube are in butt joint with the ventilation pipeline and the exhaust pipeline through the air vents respectively; furnace plug baffles are arranged at the two ends in the quartz tube, and the furnace plug is clamped in the quartz tube through the furnace plug baffles; the furnace body is rotatably arranged relative to the furnace body base, the furnace body base is rotatably arranged on the rack through a bearing, and a rotation driving air cylinder is arranged between the rack and the furnace body base; the furnace body is further provided with a calcination heating device. According to the utility model, materials can be dynamically and uniformly calcined, and meanwhile, pollution from the environment and the interior of equipment is avoided, so that the quality of the materials is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of material dynamic calcining device, belong to calcining equipment technical field. BACKGROUND

[0002] There are certain defects in static calcining furnace in traditional calcining equipment, especially the temperature difference between the inside and outside of the material in the furnace due to accumulation is significant (usually more than 50~100 ℃), and the heat field distribution of box-type furnace is also uneven, which leads to unstable calcining quality. In addition, the pollution sources of traditional calcining equipment are complex and difficult to control, and the purity of materials is threatened by internal and external pollution, such as external pollution caused by insufficient air tightness and internal pollution caused by the separation of Fe, Si and other impurities from traditional refractory lining at high temperature. SUMMARY

[0003] The utility model provides a kind of material dynamic calcining device to solve the above problems existing in prior art, which can dynamically calcine materials, make its calcination uniform, thereby improving calcination efficiency and material uniformity, and avoiding internal and external pollution sources from polluting materials.

[0004] The utility model relates to a kind of material dynamic calcining device, including: furnace cover, furnace body, quartz tube and furnace body pedestal, wherein, furnace cover sets a pair, buckles in the both ends of furnace body;Quartz tube is inserted along the central axis of furnace body in furnace body, and is butt-jointed with furnace cover, and a sealing ring is arranged between the butt-jointed part of furnace cover and quartz tube for sealing;Furnace cover is provided with air vent, and quartz tube is butt-jointed with air pipe line and air extraction pipe line at both ends through air vent respectively;Furnace plug baffle is arranged at both ends inside quartz tube, and furnace plug is clamped in the inside of quartz tube through furnace plug baffle;Furnace body is rotationally arranged relative to furnace body pedestal, furnace body pedestal is rotationally arranged on rack through bearing, and rotation driving cylinder is arranged between rack and furnace body pedestal;

[0005] The furnace body is also provided with calcining heating device.

[0006] For some specific embodiments, the furnace cover is provided with a cooling water channel inside for cooling the butt-jointed part with the quartz tube to avoid damage to the sealing ring due to heat.

[0007] For some specific embodiments, a chain wheel is fixed on the furnace body, and the chain wheel is connected with a driving motor through chain transmission.

[0008] Preferably, the furnace body is also provided with a pair of auxiliary rollers at both ends for assisting the rotation of the furnace body, and the auxiliary rollers are made of rubber.

[0009] For some specific embodiments, the quartz tube is contracted in diameter at the discharge end to avoid material overflow in the high temperature zone during rotation; the quartz tube is provided with a plurality of rectangular baffles distributed in the circumferential direction inside the tube along the axial direction, which plays a role in enhancing the dispersion of the material during rotation of the quartz tube.

[0010] For some specific embodiments, the calcination heating device is provided with three groups, which are arranged along the axial direction of the quartz tube in sequence to form three temperature control zones to ensure the uniformity of the temperature in the axial direction.

[0011] Compared with the prior art, the utility model has the following technical effects:

[0012] 1) Dynamic calcination can be performed to improve the calcination efficiency;

[0013] 2) High-purity quartz tube is used, and the sealing measures are complete, the air tightness is good, and impurities will not be introduced during calcination, thereby improving the calcination quality of the material;

[0014] 3) The vacuumizing device is additionally provided to accelerate the removal speed of organic matter and hydroxyl groups in the organic impurity-containing material such as synthetic quartz sand, thereby improving the calcination efficiency and quality. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a front view of the structure of example 1;

[0016] Figure 2 is Figure 1 a right view of the furnace body and the furnace cover;

[0017] Figure 3 is a structural schematic view of the quartz tube in example 1;

[0018] In the figure: 100, furnace cover; 101, cooling water inlet; 102, cooling water outlet; 103, furnace plug fixing part; 104, air vent; 200, furnace body; 300, quartz tube; 301, first furnace plug baffle; 302, second furnace plug baffle; 303, rectangular baffle; 400, furnace body base; 500, roller; 600, calcination heating device; 700, rack; 800, driving motor; 900, rotary drive cylinder. DETAILED DESCRIPTION

[0019] The utility model will be described in detail below in combination with the drawings and specific embodiments.

[0020] Example 1

[0021] As shown in Figure 1 , Figure 2 and Figure 3 , the present embodiment comprises: a furnace cover 100, a furnace body 200, a quartz tube 300 and a furnace body base 400.

[0022] A pair of furnace covers 100 are buckled on both ends (the left end furnace cover is not shown in the figure) of the furnace body 200, used to butt the two ends of the quartz tube 300, and the butt joint is provided with a sealing ring; the two furnace covers 100 are respectively provided with cooling water flow channels, and are provided with cooling water inlets 101 and cooling water outlets 102, used to cool the sealing ring. Figure 1

[0023] A chain wheel is fixed on the furnace body 200, and the chain wheel is connected with a driving motor 800 through a chain transmission, and the furnace body can reciprocatingly rotate and swing within a range of -90°-90° relative to the furnace body base 400 through the driving of the driving motor 800; the furnace body is further provided with a pair of auxiliary rotating rollers 500 at both ends, and the rotating auxiliary rollers are made of rubber.

[0024] Flanges are sleeved on both ends of the quartz tube 300, and the flanges are fixedly connected with both ends of the furnace body; the quartz tube 300 is inserted into the furnace body 200 along the central axis of the furnace body through the flanges; first furnace plug baffles 301 and second furnace plug baffles 302 are arranged at both ends inside the quartz tube, the first furnace plug baffles 301 protrude 0.5mm from the inner wall of the quartz tube, and the second furnace plug baffles 302 are preferably circular ring structures and are welded in the quartz tube; the furnace plug is clamped at both ends inside the quartz tube 300 through the first furnace plug baffles 301 and the second furnace plug baffles 302, so as to ensure the stability of the temperature inside the quartz tube during calcination and reduce heat loss. The quartz tube 300 is provided with a plurality of circumferentially distributed rectangular baffles 303 inside along the axial direction, which play a role in enhancing the dispersion of materials during the rotation of the quartz tube, so as to avoid the sliding of the materials along the inner wall of the quartz tube and affect the calcination quality.

[0025] The quartz tube 300 is further provided with furnace plug fixing members 103 corresponding to the furnace plug on both ends of the furnace cover 100, and the furnace plug fixing members 103 are preferably made of high-purity quartz rods; the furnace plug is provided with a recess matched with the furnace plug fixing member 103, so as to facilitate the insertion of the furnace plug fixing member 103; in the axial direction, the furnace plug fixing member 103 and the first furnace plug baffle 301 and the furnace plug fixing member 103 and the second furnace plug baffle 302 are used to fix the furnace plug at both ends, so as to prevent the displacement of the furnace plug during the rotation of the quartz tube and damage the quartz tube and / or the furnace plug. One end of the furnace plug is provided with a handle, so as to facilitate the loading and unloading, and the inside of the furnace plug is filled with quartz wool for heat preservation.

[0026] One end of the quartz tube 300 is a feeding end, and a vent 104 is arranged on the furnace cover 100 corresponding to the feeding end, and the vent 104 is communicated with a vacuum pump through a pipeline, and the vacuum pump is preferably a rotary vane vacuum pump; the quartz tube is in a negative pressure state through vacuumizing, so as to accelerate the speed of the removal of organic matter and hydroxyl groups and improve the calcination efficiency and quality.

[0027] ​The other end of the quartz tube 300 is a discharging end, the tube diameter of which is contracted; the furnace cover corresponding to the discharging end is also provided with a vent; preferably, the discharging end of the quartz tube 300 is connected with a vent pipe through the vent on the furnace cover, and a valve is arranged on the vent pipe; after calcination is completed, a gas is introduced to balance the internal and external pressures.

[0028] The furnace body is also provided with a calcination heating device 600, preferably using a silicon molybdenum rod as a heat source; preferably, the calcination heating device is provided with three groups, and the three groups of heating devices are arranged along the quartz tube in sequence to form three temperature control intervals, and the temperature is controlled respectively to make the temperature more uniform.

[0029] The furnace body base 400 is rotatably arranged on the rack 700 through a bearing, and a rotary driving cylinder 900 is arranged between the rack 700 and the furnace body base 400; during discharging, the furnace body is driven to be inclined downward by the rotary driving cylinder 900, that is, the side of the quartz tube on the necked end is inclined downward, and then the quartz tube rotates with the furnace body under the driving of the driving motor 800 to discharge the material in the quartz tube.

[0030] It should be emphasized that: the above is only a preferred embodiment of the present application, and does not limit the present application in any form, and any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still belongs to the scope of the technical scheme of the present application.

Claims

1. A dynamic calcining apparatus for a material, characterized by, The utility model relates to a calcining furnace, which comprises a furnace cover, a furnace body, a quartz tube and a furnace body base. The furnace cover is provided with a pair of air vents, and the quartz tube is connected with air supply pipeline and air exhaust pipeline through the air vents at both ends. The furnace body is rotatably arranged relative to the furnace body base, the furnace body base is rotatably arranged on a rack through a bearing, and a rotary driving cylinder is arranged between the rack and the furnace body base.

2. The dynamic calcination apparatus of claim 1, wherein, The furnace body is further provided with calcination heating devices.

3. The dynamic material calciner of claim 1, wherein, The furnace cover is internally provided with a cooling water channel.

4. The dynamic material calciner of claim 1, wherein, The furnace cover is further provided with a furnace plug fixing member corresponding to the furnace plug.

5. The dynamic material calciner of claim 4, wherein, A chain wheel is fixed on the furnace body, and the chain wheel is connected with a driving motor through a chain transmission.

6. The dynamic material calciner of claim 1, wherein, A pair of rollers are further arranged at both ends of the furnace body to assist the rotation of the furnace body.

7. The dynamic material calciner of claim 1, wherein, The quartz tube is contracted in diameter at the discharge end.

8. The dynamic material calciner of claim 1, wherein, The quartz tube is internally provided with a plurality of rectangular baffles distributed in the circumferential direction along the axial direction. The calcination heating devices are arranged in three groups, and the three groups of heating devices are arranged along the axial direction of the quartz tube to form three temperature control intervals.

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