Reverse-burning heating calcining device

Abstract

The utility model discloses a reverse combustion heating calcining device which comprises a base, a calcining furnace arranged above the base, an observation port and a feed port arranged above the calcining furnace, a smoke pipe arranged below the calcining furnace, a transmission device, a supporting device and a discharge port arranged outside the calcining furnace, and a rotating core and a sand scraping plate arranged inside the calcining furnace, and a combustion furnace plate penetrates through the calcining furnace. According to the counter-burning heating calcining device, materials are uniformly heated in a mode of heating from bottom to top, so that the problem that the materials are easy to cake is avoided, and the heat efficiency is improved. A reasonable heat exchange structure is adopted, waste heat can be fully utilized, combustion is more sufficient, energy consumption is reduced, emission of dust and harmful gas is reduced, and pollution to the environment is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to calcining device field, especially the reverse burning heating calcining device of kind. BACKGROUND

[0002] The calcining device is widely used in metallurgy, chemical industry, ore, building material and other industries, in traditional calcining process, usually use combustion furnace to provide high temperature combustion gas, and the material is directly heated under high temperature. SUMMARY

[0003] In order to solve the low thermal efficiency of conventional calcining device, material is easy to cake and the problem of insufficient combustion, the utility model provides a reverse burning heating calcining device, solves the above problem.

[0004] A reverse burning heating calcining device, including base, the base top is provided with calcining furnace, the calcining furnace top is provided with observation port and feed inlet, the calcining furnace lower part is provided with flue, the calcining furnace outside is provided with transmission, support device and discharge port, the calcining furnace inside is provided with rotating core and sand scraping plate, and combustion furnace disc is set through the calcining furnace.

[0005] Preferably, the calcining furnace includes a shell, and an upper top cover is arranged above the shell.

[0006] Preferably, the number of observation ports is two, one is arranged on the upper top cover, and the other is arranged on the feed inlet.

[0007] Preferably, the transmission includes a cylindrical gear and a speed reducer motor, the speed reducer motor includes a motor rotating shaft, the motor rotating shaft is engaged with the cylindrical gear, the cylindrical gear is connected with a rotating shaft base, the rotating shaft base is a hollow structure and is connected with the rotating core above and the flue below.

[0008] Preferably, the support device is a rotary support, and the rotary support is arranged on the outside of the cylindrical gear.

[0009] Preferably, the rotating core includes an outer ring plate and an inner circular plate, the height of the inner circular plate is higher than that of the outer ring plate, the lower surface of the inner circular plate is provided with a hollow rotating shaft, the rotating shaft is provided with a smoke hole, and the rotating shaft is connected with the rotating shaft base.

[0010] Preferably, the sand scraping plate is fixed on the inner wall of the shell, and the sand scraping plate includes a first sand scraping plate and a second sand scraping plate, the first sand scraping plate is in contact with the upper surface of the outer ring plate, and the second sand scraping plate is in contact with the upper surface of the inner circular plate.

[0011] The utility model has the advantages that:

[0012] (1) The reverse burning heating calcining device of the utility model evenly heats the material by heating from the bottom to the top, avoids the problem that the material is easy to be caked, and improves the thermal efficiency.

[0013] (2) The reverse burning heating calcining device of the utility model adopts a reasonable heat exchange structure, can fully utilize waste heat, makes combustion more sufficient, reduces energy consumption, and reduces the emission of dust and harmful gas, and reduces the pollution to the environment. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure schematic view of the reverse burning heating calcining device of the utility model embodiment.

[0015] Figure 2 It is a transmission device structure schematic view of the reverse burning heating calcining device of the utility model embodiment.

[0016] Figure 3 It is a sand scraping plate structure schematic view of the reverse burning heating calcining device of the utility model embodiment.

[0017] The signs are as follows:

[0018] 1-base, 2-rotary support, 3-cylindrical gear, 4-rotating shaft base, 5-smoke pipe, 6-rotary core, 601-outer ring plate, 602-inner circle plate, 603-rotating shaft, 604-smoke hole, 701-first sand scraping plate, 702-second sand scraping plate, 8-burning disc, 9-outer shell, 10-upper cover, 11-viewing port, 12-feeding port, 13-discharging port, 14-reduction motor, 141-motor rotating shaft. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the application more clear and obvious, the application is further described in detail below with reference to the drawings and examples.

[0020] The application embodiment discloses a reverse burning heating calcining device, as shown in Figure 1 and Figure 2 , which comprises a base 1, a calcining furnace is arranged above the base 1, a viewing port 11 and a feeding port 12 are arranged above the calcining furnace, a smoke pipe 5 is arranged below the calcining furnace, a transmission device, a supporting device and a discharging port 13 are arranged outside the calcining furnace, a rotary core 6 and a sand scraping plate 7 are arranged inside the calcining furnace, and a burning furnace disc 8 is arranged through the calcining furnace.

[0021] The calcining furnace comprises an outer shell 9, an upper cover 10 is arranged above the outer shell 9, and the outer shell 9 and the upper cover 10 are fixedly connected through locking pieces 15. The outer shell 9 and the upper cover 10 serve as a heat preservation layer of the calcining device, effectively isolate the heat transfer between the inside and outside of the calcining device, reduce the heat loss, improve the thermal efficiency of the calcining device, and reduce the energy consumption.

[0022] There are two observation ports 11, one located on the top cover 10 and the other on the feed inlet 12. Through the observation ports 11, the calcination process inside the calcining device can be checked. The operator can directly observe the quantity of material, the calcination status, etc., in order to adjust the input of material and fuel.

[0023] like Figure 3 As shown, the transmission device includes a cylindrical gear 3 and a geared motor 14. The geared motor 14 includes a motor shaft 141, which meshes with the cylindrical gear 3. The cylindrical gear 3 is connected to a shaft base 4, which is a hollow structure and is connected to the rotating core 6 at the top and the smoke pipe 5 at the bottom.

[0024] When the geared motor 14 starts, the motor drives the internal rotor to start rotating. The rotational motion of the rotor reduces the speed through the reducer and increases the output torque. The speed and torque are transmitted to the cylindrical gear 3 through the motor shaft 141. The rotational motion of the cylindrical gear 3 is transmitted to the shaft base 4, and the shaft base 4 drives the rotating core 6 to rotate.

[0025] The support device is a slewing bearing 2, which is located on the outside of the cylindrical gear 3 and provides support, enabling the cylindrical gear 3 to rotate smoothly.

[0026] The rotating core 6 includes an outer ring plate 601 and an inner circular plate 602. The inner circular plate 602 is higher than the outer ring plate 601. A stop 604 is provided above the inner circular plate 602. A hollow rotating shaft 603 is provided on the lower surface of the inner circular plate 602. A smoke hole 604 is provided on the rotating shaft 603. The lower surface of the rotating core 6 forms a calcination chamber with the calcining furnace. The smoke hole 604, the rotating shaft 603, the rotating shaft base 4, and the smoke pipe 5 form a smoke exhaust channel.

[0027] The scraper 7 is fixed on the inner wall of the outer casing 9 and includes a first scraper 701 and a second scraper 702. The first scraper 701 is in contact with the upper surface of the outer ring plate 601, and the second scraper is in contact with the upper surface of the inner circular plate 602.

[0028] In one embodiment, the speed reducer motor 14 adopts KF87 speed reducer, the slewing bearing 2 adopts 062.20.1094 thin slewing bearing, when in use, the material enters the calcining furnace through the feeding port 12 and falls on the rotating core 6, the fuel is input through the combustion disc 8, the speed reducer motor 14 is started to drive the cylindrical gear 3, the rotating shaft base 4 and the rotating core 6 to rotate, when the rotating core 6 rotates, the material on the inner circular plate 602 is scraped off by the second scraping plate 702 and falls on the outer ring plate 601, the material on the outer ring plate 601 is scraped off by the first scraping plate and enters the calcining cavity, the heat generated by the combustion of the fuel in the combustion disc is used for calcining the material, and the incondensable gas generated by calcining can also be used as the fuel to participate in the calcining process, so that energy is saved and pollution is reduced. The calcining process is checked through the observation port 11. The flue gas generated by calcining is discharged from the calcining device through the smoke hole 604, the rotating shaft 603, the rotating shaft base 4 and the smoke pipe 5 to form a smoke exhaust channel, and the residue after calcining is discharged through the discharge port 13.

[0029] The basic principle and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A reverse-firing heating calcination apparatus, characterized in that, It includes a base (1), a calcining furnace is provided above the base (1), an observation port (11) and a feed port (12) are provided above the calcining furnace, a smoke pipe (5) is provided below the calcining furnace, a transmission device, a support device and a discharge port (13) are provided outside the calcining furnace, a rotating core (6) and a scraper (7) are provided inside the calcining furnace, and a combustion furnace plate (8) is provided through the calcining furnace.

2. The reverse-heating calcination apparatus according to claim 1, characterized in that, The calcining furnace includes an outer shell (9) and an upper cover (10) is provided on the top of the outer shell (9).

3. The reverse-firing heating calcination apparatus according to claim 2, characterized in that, There are two observation ports (11), one on the top cover (10) and the other on the feed port (12).

4. The reverse-firing heating calcination apparatus according to claim 3, characterized in that, The transmission device includes a cylindrical gear (3) and a geared motor (14). The geared motor (14) includes a motor shaft (141), which meshes with the cylindrical gear (3). The cylindrical gear (3) is connected to a shaft base (4). The shaft base (4) is a hollow structure and is connected to the rotating core (6) at the top and to the smoke pipe (5) at the bottom.

5. The reverse-heating calcination apparatus according to claim 4, characterized in that, The support device is a slewing bearing (2), which is located on the outside of the cylindrical gear (3).

6. The reverse-firing heating calcination apparatus according to claim 5, characterized in that, The rotating core (6) includes an outer ring plate (601) and an inner circular plate (602). The height of the inner circular plate (602) is higher than that of the outer ring plate (601). A hollow rotating shaft (603) is provided on the lower surface of the inner circular plate (602). A smoke hole (604) is provided on the rotating shaft (603). The rotating shaft (603) is connected to the rotating shaft base (4).

7. The reverse-firing heating calcination apparatus according to claim 6, characterized in that, The scraper (7) is fixed on the inner wall of the outer shell (9) and includes a first scraper (701) and a second scraper (702). The first scraper (701) is in contact with the upper surface of the outer ring plate (601), and the second scraper is in contact with the upper surface of the inner round plate (602).

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