Rotary kiln roasting device

Abstract

The utility model relates to the technical field of rotary kilns, in particular to a rotary kiln roasting device which comprises a base, the base is horizontally arranged, a furnace tube is arranged above the base, the diameter of an opening in the left end of the furnace tube is smaller than that of an opening in the right end of the furnace tube, a fixing ring is fixedly connected to the end of the furnace tube in a sleeved mode, and a supporting seat is fixedly installed at the top of the base. An annular groove is formed in the top of the supporting base, the fixing ring is rotationally arranged in the annular groove, a bearing disc is fixedly installed in the annular groove, the outer wall of the fixing ring is fixedly connected with the inner ring wall of the bearing disc, the fixing ring is sleeved with a gear disc, and the gear disc is fixedly connected to the fixing ring in a sleeving mode and located in the annular groove in the top of the supporting base. The furnace tube horizontal rotating device has the advantages that the furnace tube can rotate in a horizontal state, and compared with a furnace tube which is arranged in an inclined mode, the furnace tube horizontal rotating device is more stable in gravity center and higher in safety.

Description

TECHNICAL FIELD

[0001] The utility model relates to rotary kiln technical field especially is a kind of rotary kiln roasting device. BACKGROUND

[0002] Rotary kiln roasting device is a kind of equipment for high-temperature processing of materials, widely used in building materials, metallurgy, chemical industry and other industries. It makes materials uniformly heated in kiln by rotating movement, completes roasting process, and rotary kiln is a slightly inclined and rotatable cylindrical structure, materials enter from high end, gradually move to low end along with kiln body rotation, in moving process, materials fully contact with high-temperature airflow, physical or chemical changes (such as decomposition, oxidation, reduction, etc.) occur, and processed materials are discharged from kiln tail, and waste gas is discharged after purification by dust removal equipment.

[0003] Usually, the furnace tube in the rotary kiln roasting device is inclinedly installed, and this installation mode can cause the center of gravity of the furnace tube to be inclined. In order to match the inclinedly placed furnace tube, the transmission structure for driving the furnace tube to rotate also needs to be inclinedly installed. Thus, the structure can bear the inclined gravity exerted by the furnace tube, so that the structure is prone to local damage, and further, the rotary kiln roasting device has certain safety hazards in use. Therefore, the present application provides a rotary kiln roasting device UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a rotary kiln roasting device to solve the problems in the background art.

[0005] In order to achieve the above-mentioned purpose, the utility model is implemented by the following technical scheme: a rotary kiln roasting device, comprising:

[0006] A base is horizontally placed.

[0007] A furnace tube is arranged above the base, and the diameter of the left end opening of the furnace tube is smaller than that of the right end opening.

[0008] A fixing ring is fixedly sleeved on the end of the furnace tube.

[0009] A support seat is fixedly installed on the base, and an annular groove is formed in the top of the support seat.

[0010] A bearing disc is fixedly installed in the annular groove, and the outer wall of the fixing ring is fixedly connected with the inner ring wall of the bearing disc.

[0011] A gear disc is fixedly sleeved on the fixing ring and located in the annular groove in the top of the support seat.

[0012] A shaft is transversely penetrated through the support base and passes through the bottom groove;

[0013] A transmission gear is fixedly installed on the shaft and located in the bottom groove, and the top end of the transmission gear extends into the annular groove and is meshingly connected with the bottom of the gear disc;

[0014] A top cover is arranged above the support base and covers the outside of the bearing disc and the gear disc.

[0015] Optionally, the support base is provided with two support bases located at two ends of the furnace tube, the number of the fixing rings is two, and the two fixing rings are fixedly sleeved at the two ends of the furnace tube and are rotatably installed in the annular grooves at the top of the two support bases, the number of the bearing discs in each annular groove is two and is installed on the two sides of the corresponding gear disc, and the number of the top covers is two and is installed on the top of the two support bases.

[0016] Optionally, the transmission gear is provided with two transmission gears, and the two transmission gears are fixedly installed on the shaft and are located in the bottom grooves at the bottom of the two support bases, and the top ends of the two transmission gears are meshingly connected with the bottoms of the corresponding gear discs.

[0017] Optionally, the outer diameters of the two fixing rings are the same, and the centers of the two fixing rings and the center of the furnace tube are located on the same horizontal axis.

[0018] Optionally, the base further comprises:

[0019] A motor is fixedly installed at the left end of the top of the base, and the output end of the motor is aligned with the left end of the shaft;

[0020] A shaft coupling is installed between the output end of the motor and the left end of the shaft.

[0021] Optionally, the top cover further comprises:

[0022] Oil tanks are provided with two oil tanks and are fixedly installed on the top of the two top covers, an oil injection pipe is arranged on the top of the oil tank, and a sealing cover is threadedly sleeved on the top end of the oil injection pipe;

[0023] Through holes are formed on the top of the top cover, a plurality of oil permeation holes are uniformly formed at the center of the bottom of the two oil tanks, oil absorbing cotton ropes are fixedly inserted into each oil permeation hole, and the bottom ends of the plurality of oil absorbing cotton ropes at the bottom of the two oil tanks penetrate through the through hole of the top cover and are in contact with the top of the corresponding gear disc.

[0024] Optionally, protruding plates are provided at both ends of the bottom of the two top covers and at both ends of the top of the two support bases. Each protruding plate has a through hole that runs vertically through it. A first bolt is threaded between each pair of corresponding through holes at each position.

[0025] Optionally, the bottom of the motor is provided with a mounting plate, and countersunk holes are provided at the four corners of the mounting plate. A second bolt that is threaded to the base is inserted through each countersunk hole.

[0026] The beneficial effects of this utility model are:

[0027] The furnace tube is supported at both ends by two support bases, ensuring it remains horizontal. The diameter of the left end of the furnace tube is smaller than that of the right end, so the inner wall of the furnace tube gradually decreases in height from left to right. This allows the material to slide and tumble along the inclined surface of the inner wall of the furnace tube as it rotates. The horizontally placed furnace tube is more stable in terms of gravity than the inclined one, resulting in less external force on the transmission structure during rotation and thus greater safety. During operation, the power generated by the motor is transmitted to the transmission gears via a coupling rod and coupling device. These two transmission gears simultaneously drive two gear discs to rotate, allowing both ends of the furnace tube to rotate simultaneously, thus ensuring more stable rotation of the furnace tube. Attached Figure Description

[0028] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0029] Figure 1 This is a schematic diagram of the overall structure of a rotary kiln roasting device according to the present invention;

[0030] Figure 2 This is a schematic diagram of the connection between the furnace tube and the support base of a rotary kiln roasting device according to this utility model.

[0031] Figure 3 This is a schematic diagram of the connection between the motor, coupling and fixing ring of a rotary kiln roasting device according to this utility model;

[0032] Figure 4 This is a schematic cross-sectional view of the furnace tube and fixing ring of a rotary kiln roasting device according to the present invention.

[0033] Figure 5 This is a schematic diagram of the connection between the transmission gear and the coupling rod in a rotary kiln roasting device according to this utility model.

[0034] Figure 6 This is a schematic diagram of the structure of an oil storage tank and oil-absorbing cotton rope in a rotary kiln roasting device according to this utility model.

[0035] Reference signs:

[0036] 1, base;

[0037] 21, furnace tube; 22, fixed ring;

[0038] 31, support seat; 32, top cover; 33, annular groove; 34, bearing disc; 35, bottom groove; 36, first bolt;

[0039] 41, gear disc; 42, transmission gear; 43, shaft coupling; 44, motor; 45, shaft coupling;

[0040] 51, oil storage tank; 52, oil absorption cotton rope. DETAILED DESCRIPTION

[0041] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0042] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: a rotary kiln calcination device, including base 1, base 1 is horizontally placed, furnace tube 21 is set on the top of base 1, the diameter of the left end opening of furnace tube 21 is less than the diameter of its right end opening, fixed ring 22 is fixedly sleeved on the end of furnace tube 21, support seat 31 is fixedly installed on the top of base 1, annular groove 33 is opened in the top of support seat 31, fixed ring 22 is rotationally arranged in annular groove 33, bearing disc 34 is fixedly installed in annular groove 33, and the outer wall of fixed ring 22 is fixedly connected with the inner circle wall of bearing disc 34, gear disc 41 is sleeved on fixed ring 22, gear disc 41 is fixedly sleeved on fixed ring 22 and located in annular groove 33 in the top of support seat 31, bottom groove 35 is opened in the bottom of annular groove 33, shaft coupling 43 is transversely penetrated through bottom groove 35 on the side of support seat 31, transmission gear 42 is fixedly installed on shaft coupling 43 and located in bottom groove 35, and the top end of transmission gear 42 extends into annular groove 33 and is engagedly connected with the bottom of gear disc 41, top cover 32 is set on the top of support seat 31 and covers the outside of bearing disc 34 and gear disc 41.

[0043] Support seat 31 can support furnace tube 21, fixed ring 22 on furnace tube 21 can rotate in annular groove 33 on support seat 31, bearing disc 34 can limit the position of fixed ring 22 in annular groove 33 on support seat 31, and transmission gear 42 can transmit the power of the rotation of shaft coupling 43 to gear disc 41, so as to drive fixed ring 22 and furnace tube 21 to rotate on support seat 31.

[0044] Please refer to Figures 2-5The support seat 31 is provided with two, two support seats 31 are located at both ends of the furnace tube 21 respectively, the number of fixed rings 22 is provided with two, and two fixed rings 22 are respectively fixedly sleeved at both ends of the furnace tube 21, and two fixed rings 22 are respectively rotatably installed in the annular groove 33 at the top of the two support seats 31, the number of bearing discs 34 in each annular groove 33 is provided with two and is respectively installed on both sides of the corresponding gear disc 41, and the top cover 32 is provided with two and is respectively installed at the top of the two support seats 31.

[0045] The two support seats 31 can support both ends of the furnace tube 21 respectively, so that the furnace tube 21 can always maintain a horizontal state. Since the diameter of the left end of the furnace tube 21 is smaller than that of the right end, the horizontal height of the inner wall of the furnace tube 21 gradually decreases from left to right, so that the furnace tube 21 can complete the conveying of the internal material during rotation. The material will slide and turn along the inclined surface of the inner wall of the furnace tube 21. The horizontal placement of the furnace tube 21 is more stable than the inclined placement of the furnace tube 21. When the furnace tube 21 rotates, the external force borne by the transmission structure is smaller, so that the safety is higher during use.

[0046] Referring to Figure 3 and Figure 5 , the transmission gear 42 is provided with two, two transmission gears 42 are fixedly installed on the shaft 43 and are respectively located in the bottom groove 35 at the bottom of the two support seats 31, and the top ends of the two transmission gears 42 are respectively engaged with the bottom of the corresponding gear disc 41. The shaft 43 can simultaneously drive the two transmission gears 42 to rotate, so that the two transmission gears 42 drive the two gear discs 41 to rotate together, thereby driving the furnace tube 21 to rotate on the two support seats 31. Because the sizes of the two gear discs 41 are the same, the rotational speeds of the two ends of the furnace tube 21 are the same, so that the furnace tube 21 can normally rotate.

[0047] Referring to Figure 1 and Figure 4 , the outer diameters of the two fixed rings 22 are the same, and the centers of the two fixed rings 22 and the center of the furnace tube 21 are located on the same horizontal axis. The two fixed rings 22 can keep the furnace tube 21 in a horizontal state during rotation. Since the furnace tube 21 is designed to rotate in a horizontal state, it can also complete the conveying of the internal material.

[0048] Referring to Figure 1 and Figure 2The motor 44 is fixedly installed at the left end of the top of the base 1, and the output end of the motor 44 is aligned with the left end of the shaft 43. A shaft coupling 45 is installed between the output end of the motor 44 and the left end of the shaft 43. The output end of the motor 44 and the shaft 43 are fixedly connected together through the shaft coupling 45. When the motor 44 operates, the shaft 43 can be driven to rotate, so that the two transmission gears 42 on the shaft 43 drive the two gear plates 41 to rotate, and further drive the two fixed rings 22 and the furnace pipe 21 to rotate.

[0049] Referring to Figure 1 and Figure 2 The oil storage tanks 51 are fixedly installed on the top of the two top covers 32. An oil filling pipe is arranged on the top of the oil storage tank 51. A sealing cover is threadedly connected to the top end of the oil filling pipe. A through opening is formed in the top of the top cover 32. A plurality of oil permeation holes are uniformly formed in the center of the bottom of each oil storage tank 51. An oil absorbing cotton rope 52 is fixedly inserted into each oil permeation hole. The bottom end of each oil absorbing cotton rope 52 in the bottom of the two oil storage tanks 51 penetrates through the through opening in the top cover 32 and contacts the top of the corresponding gear plate 41. Lubricating oil is injected into the oil storage tank 51 and permeates into the oil absorbing cotton rope 52. When the gear plate 41 rotates, the lubricating oil in the oil absorbing cotton rope 52 is applied to the gear plate 41. The gear plate 41 contacts the transmission gear 42, so that the lubricating oil is applied to the transmission gear 42. When the two gears mesh and drive, they can move more smoothly.

[0050] Referring to Figure 1 and Figure 2 The two ends of the bottom of the two top covers 32 and the two ends of the top of the two support seats 31 are provided with protruding plates. A through hole is formed in each protruding plate. A first bolt 36 is threadedly inserted between the corresponding through holes at each position. The top cover 32 is installed and closed on the top of the support seat 31 through the first bolt 36. When the bearing disc 34 and the gear plate 41 in the annular groove 33 need to be maintained and repaired, the top cover 32 can be removed by unscrewing the first bolt 36.

[0051] Referring to Figure 1 and Figure 2 The bottom of the motor 44 is provided with a mounting plate. A countersunk hole is formed at each corner of the mounting plate. A second bolt is threadedly connected with the base 1 and penetrates and is inserted into each countersunk hole. The motor 44 is fixedly installed on the base 1 through the use of the second bolt, so that the motor 44 can stably deliver power.

[0052] Although the present specification is described in terms of embodiments, not every embodiment exhibits every characteristic or implements every combination of features described in the present specification. In addition, not every embodiment includes every embodiment described in the present specification. The description herein of any embodiment, including any preferred embodiment, is thus intended to be illustrative, and not restrictive. The scope of the present application is thus intended to be broad, and will be set forth in the following claims.

Claims

1. A rotary kiln calcining apparatus characterized by, The utility model provides a kind of furnace, including: Base, the base is horizontally placed; Furnace tube, which is arranged above the base, and the diameter of the opening at the left end of the furnace tube is smaller than that of the opening at the right end; Fixed ring, fixedly sleeved on the end of the furnace tube; Support seat, fixedly installed on the base, an annular groove is formed in the top of the support seat, and the fixed ring is rotatably arranged in the annular groove; Bearing disc, fixedly installed in the annular groove, and the outer wall of the fixed ring is fixedly connected with the inner ring wall of the bearing disc; Gear disc, fixedly sleeved on the fixed ring and located in the annular groove on the top of the support seat; Coupling rod, a bottom groove is formed in the bottom of the annular groove, and the coupling rod transversely penetrates through the support seat and passes through the bottom groove; Transmission gear, fixedly installed on the coupling rod and located in the bottom groove, and the top end of the transmission gear extends into the annular groove and is meshingly connected with the bottom of the gear disc; Top cover, arranged above the support seat and covering the outside of the bearing disc and the gear disc.

2. A rotary kiln firing device according to claim 1, wherein The support seat is provided with two, and the two support seats are respectively located at the two ends of the furnace tube, the number of the fixed ring is two, and the two fixed rings are respectively fixedly sleeved on the two ends of the furnace tube, and the two fixed rings are respectively rotatably installed in the annular grooves on the top of the two support seats, the number of the bearing discs in each annular groove is two and is respectively installed on the two sides of the corresponding gear disc, and the top cover is provided with two and is respectively installed on the top of the two support seats.

3. A rotary kiln firing apparatus as claimed in claim 2, wherein, The transmission gear is provided with two, and the two transmission gears are all fixedly installed on the coupling rod and respectively located in the bottom grooves on the bottom of the two support seats, and the top ends of the two transmission gears are respectively meshingly connected with the bottoms of the corresponding gear discs.

4. A rotary kiln firing apparatus as claimed in claim 1, wherein, The outer diameters of the two fixed rings are the same, and the centers of the two fixed rings and the center of the furnace tube are all located on the same horizontal axis.

5. A rotary kiln firing apparatus as claimed in claim 1, wherein, The base further includes: Motor, fixedly installed on the left end of the top of the base, and the output end of the motor is aligned with the left end of the coupling rod; Coupling, installed between the output end of the motor and the left end of the coupling rod.

6. A rotary kiln firing apparatus as claimed in claim 1, wherein, The top cover further includes: Oil tank, provided with two and respectively fixedly installed on the top of the two top covers, an oil filling pipe is arranged on the top of the oil tank, and a sealing cover is threadedly sleeved on the top end of the oil filling pipe; The top of the top cover is provided with a through opening, a plurality of oil permeation holes are uniformly formed at the center of the bottom of the two oil tanks, an oil absorbing cotton rope is fixedly inserted in each oil permeation hole, and the bottom ends of the plurality of oil absorbing cotton ropes at the bottom of the two oil tanks all penetrate through the through opening on the top cover and contact the top of the corresponding gear disc.

7. A rotary kiln firing apparatus as claimed in claim 1, wherein, The two ends of the bottom of the two top covers and the two ends of the top of the two support seats are all provided with protruding plates, a through hole penetrating up and down is formed in each protruding plate, and a first bolt is threadedly inserted between the up and down corresponding through holes at each position.

8. A rotary kiln firing apparatus as claimed in claim 5, wherein, The bottom of the motor is provided with a mounting plate, a countersunk hole is formed at each corner of the mounting plate, and a second bolt threadedly connected with the base is inserted through each countersunk hole.

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