Efficient and energy-saving gypsum calcining device

Abstract

The utility model discloses an efficient and energy-saving gypsum calcining device which comprises a calcining box, a rotating shaft is arranged in the calcining box, a first stirring rod is arranged on the rotating shaft, a driving gear is fixedly connected to the rotating shaft, driven gears are arranged on the two sides of the driving gear, a rotating rod is fixedly connected to the driven gears, and a second stirring rod is fixedly connected to the rotating rod. The rotary shaft with the first stirring rod is arranged in the calcining box, and the driving gear and the driven gear are combined to drive the second stirring rod to rotate, so that materials can be fully and uniformly stirred in the calcining process. Therefore, uniform heating of the materials is ensured, the problem of local overheating or insufficient calcination is avoided, the product quality is improved, and large materials can be crushed in advance through the crushing rollers arranged in the feeding port to ensure uniform fine crushing of the materials.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gypsum processing, specifically, relates to a high -efficient energy -conserving gypsum calcining device. BACKGROUND

[0002] Gypsum, as an important building material, is widely used in construction, decoration and restoration, etc. Whether it is the wall plastering of newly built houses or the restoration of ancient buildings, gypsum plays an indispensable role. In the production process of gypsum, calcination is a crucial step. Through calcination, natural gypsum or desulfurization gypsum can be converted into semi-hydrated gypsum, also known as plaster. This conversion process makes gypsum have better processability and application performance, providing a basis for subsequent processing and use.

[0003] However, the existing calcining device often has some shortcomings in actual use. First of all, due to the lack of effective stirring mechanism, the material is prone to local overheating or insufficient calcination during the calcination process. This uneven heating will lead to unstable quality of gypsum, affecting the performance of the final product. In addition, the existing calcining device also has obvious shortcomings in waste gas treatment. The high-temperature waste gas generated during calcination is directly discharged into the atmosphere, not only wasting a lot of heat energy, but also increasing the environmental burden.

[0004] In view of the problems in the related art, no effective solution has been proposed so far. CONTENT OF THE UTILITY MODEL

[0005] In view of the problems in the related art, the utility model proposes a high -efficient energy -conserving gypsum calcining device to overcome the above technical problems existing in the prior art.

[0006] Therefore, the utility model adopts the specific technical scheme as follows:

[0007] A kind of high -efficient energy -conserving gypsum calcining device, including calcining box, the rotating shaft is arranged in calcining box, first stirring rod is arranged on rotating shaft, driving gear is fixedly connected on rotating shaft, driving gear two sides are equipped with driven gear, rotating rod is fixedly connected on driven gear, second stirring rod is fixedly connected on rotating rod, gear ring is meshed and connected on the outer side of driven gear, and the gear ring is fixedly connected with calcining box.

[0008] Further, the two rotating rods are connected by a connecting plate, and the connecting plate is connected to the rotating shaft by a bearing.

[0009] Further, one end of the rotating shaft is connected to the output end of the rotary motor, and the rotary motor is arranged at the top end of the calcining box.

[0010] Further, the calcination box is provided with an inlet on one side, two crushing rollers are arranged in the inlet, one end of the two crushing rollers is provided with a driving gear, the two driving gears are engaged, one end of one crushing roller is connected with the output end of a driving motor, the driving motor is arranged on a support frame, the support frame is arranged outside the inlet, and the support frame is connected with the calcination box.

[0011] Further, the inlet is provided with a sealing cover at the top end.

[0012] Further, the calcination box is provided with an exhaust pipe at the top end, one end of the exhaust pipe is connected with a filter box, a filter screen is arranged in the filter box, the filter box is connected with an air pump through a connecting pipe on one side, the air pump is connected with the first air inlet of an air preheater through an air inlet pipe, the first air outlet of the air preheater is connected with a waste gas pipe, and the second air outlet of the air preheater is connected with the calciner through a reflux pipe.

[0013] Further, the calciner is provided with a calcination pipe on one side, the calcination pipe is connected with a calcination nozzle through a shunt pipe, and the calcination nozzle is arranged in the calcination box.

[0014] Further, the calcination box is provided with an exhaust pipe at the top end, one end of the exhaust pipe is connected with a filter box, a filter screen is arranged in the filter box, the filter box is connected with an air pump through a connecting pipe on one side, the air pump is connected with the first air inlet of an air preheater through an air inlet pipe, the first air outlet of the air preheater is connected with a waste gas pipe, and the second air outlet of the air preheater is connected with the calciner through a reflux pipe.

[0015] The beneficial effects of the present application are as follows:

[0016] (1) The rotating shaft with the first stirring rod is arranged in the calcination box, the driving gear and the driven gear are combined to drive the second stirring rod to rotate, so that the material can be more fully and uniformly stirred during the calcination process. This helps to ensure uniform heating of the material and avoid local overheating or insufficient calcination, thereby improving product quality, and the crushing rollers arranged in the inlet can pre-crush large materials to ensure that the materials are fine and uniform. This pre-crushing treatment not only helps to improve the calcination efficiency, but also ensures that the material is heated more uniformly during the calcination process, further improving product quality.

[0017] (2) The exhaust pipe arranged at the top end of the calcination box is connected to the filter box and the air preheater, and the waste gas is used for preheating the combustion-supporting air entering the calcination furnace after being filtered. This design not only improves energy utilization and reduces production cost, but also reduces the impact on the environment. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0019] Figure 1 It is a high-efficiency energy-saving gypsum calcining device front view according to the embodiment of the utility model;

[0020] Figure 2 It is a high-efficiency energy-saving gypsum calcining device side view according to the embodiment of the utility model;

[0021] Figure 3 It is a high-efficiency energy-saving gypsum calcining device plan view according to the embodiment of the utility model;

[0022] Figure 4 It is a high-efficiency energy-saving gypsum calcining device calcining box internal structure view according to the embodiment of the utility model.

[0023] In the drawing,

[0024] 1, calcining box, 2, rotating shaft, 3, first stirring rod, 4, driving gear, 5, driven gear, 6, rotating rod, 7, second stirring rod, 8, gear ring, 9, connecting plate, 10, rotating motor, 11, inlet, 12, crushing roller, 13, driving gear, 14, driving motor, 15, support frame, 16, sealing cover, 17, exhaust pipe, 18, filter box, 19, filter screen, 20, air pump, 21, air inlet pipe, 22, air preheater, 23, waste gas pipe, 24, return pipe, 25, calcining pipe, 26, shunt pipe, 27, calcining nozzle, 28, discharge pipe, 29, valve, 30, support column, 31, calciner. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] According to the embodiment of the utility model, a high-efficiency energy-saving gypsum calcining device is provided.

[0027] Embodiment one

[0028] As Figures 1-4As shown, the efficient and energy-saving gypsum calcining device according to the embodiment of the utility model, including calcining box 1, be equipped with pivot 2 in calcining box 1, be equipped with first stirring rod 3 on pivot 2, be equipped with driving gear 4 with fixed connection on pivot 2, be equipped with driven gear 5 with fixed connection on driven gear 5, be equipped with rotating rod 6 with fixed connection on rotating rod 6, be equipped with second stirring rod 7 with fixed connection on second stirring rod 7, driven gear 5 outside meshing connection has gear ring 8, gear ring 8 is connected with calcining box 1, two rotating rods 6 are connected through connecting plate 9, connecting plate 9 is connected with pivot 2 through bearing, one end of pivot 2 is connected with the output end of rotating electrical machine 10, and rotating electrical machine 10 is located at the top end of calcining box 1. One side of calcining box 1 is equipped with inlet 11, and two crushing rollers 12 are arranged in the inlet 11. One end of the two crushing rollers 12 is equipped with a driving gear 13, and the two driving gears 13 are engaged. One end of one crushing roller 12 is connected with the output end of a driving motor 14, and the driving motor 14 is arranged on a support frame 15. The support frame 15 is arranged outside the inlet 11, and the support frame 15 is connected with the calcining box 1. A sealing cover 16 is arranged at the top end of the inlet 11. When calcining in the calcining box 1, the inlet 11 can be blocked, which not only prevents foreign matter from entering the calcining system, but also reduces heat loss. A discharge pipe 28 is arranged at the bottom end of the calcining box 1, and a valve 29 is arranged on the discharge pipe 28. A support column 30 is arranged outside the discharge pipe 28, and the support column 30 is fixedly connected with the calcining box 1. Before the material is added into the calcining box 1, the driving motor 14 is started to drive the two crushing rollers 12 to rotate, which can crush the large material in the inlet 11 to ensure that the material is finely and uniformly crushed. After the material enters the calcining box 1, the rotating electrical machine 10 is started to drive the driving gear 4 and the first stirring rod 3 to rotate. The driving gear 4 rotates to drive the driven gear 5 to rotate, and the driven gear 5 rotates to drive the second stirring rod 7 to rotate. The driven gear 5 can rotate around the gear ring 8 during rotation, so that the second stirring rod 7 can cover every corner in the calcining box 1 during rotation, ensuring that the material can be uniformly heated during calcination. After calcination is completed, the valve 29 on the discharge pipe 28 can be opened to discharge the calcined material.

[0029] As Figures 1-4As shown, the top end of the calcination box 1 is provided with an exhaust pipe 17, one end of the exhaust pipe 17 is connected with a filter box 18, the inside of the filter box 18 is provided with a filter screen 19, one side of the filter box 18 is connected with an air pump 20 through a connecting pipe, the air pump 20 is connected with the first air inlet of an air preheater 22 through an air inlet pipe 21, the first air outlet of the air preheater 22 is connected with a waste gas pipe 23, and the second air outlet of the air preheater 22 is connected with the calciner 31 through a backflow pipe 24. One side of the calciner 31 is provided with a calcination pipe 25, the calcination pipe 25 is connected with a calcination nozzle 27 through a shunt pipe 26, and the calcination nozzle 27 is arranged in the inside of the calcination box 1. Through the above technical scheme, the high-temperature gas generated by starting the calciner 31 enters the inside of the shunt pipe 26 through the calcination pipe 25, and then is sprayed out through the plurality of calcination nozzles 27, so that the gypsum powder is calcined. In the calcination process, the high-temperature waste gas generated is introduced into the filter box 18 through the exhaust pipe 17, filtered through the filter screen 19 of the filter box 18, and then extracted through the air pump 20. The air pump 20 provides sufficient power to transport the filtered waste gas from the filter box 18 to the air preheater 22. The air preheater 22 can transfer the heat in the waste gas to the combustion-supporting air about to enter the calciner 31. The cold air exchanges heat with the heat in the waste gas after entering the air preheater 22, and the preheated air enters the calcination furnace again through the backflow pipe 24 and is used as combustion-supporting air, and the waste gas can be discharged through the waste gas pipe 23.

[0030] In summary, by means of the above technical scheme of the utility model, the rotating shaft 2 with the first stirring rod 3 is arranged in the inside of the calcination box 1, and the second stirring rod 7 is driven to rotate by the combination of the driving gear 4 and the driven gear 5, so that the material can be more fully and uniformly stirred in the calcination process. This helps to ensure that the material is evenly heated, avoids local overheating or insufficient calcination, thereby improving product quality, and the crushing roller 12 arranged in the inside of the feeding inlet 11 can pre-crush large materials to ensure that the material is fine and uniform. This pre-crushing treatment not only helps to improve the calcination efficiency, but also ensures that the material is heated more evenly in the calcination process, further improving product quality. In addition, the exhaust pipe 17 arranged at the top end of the calcination box 1 is connected to the filter box 18 and the air preheater 22, and the waste gas is used to preheat the combustion-supporting air about to enter the calcination furnace after being filtered. Such a design not only improves energy utilization and reduces production costs, but also reduces the impact on the environment.

[0031] The above only describes the preferred embodiments of the utility model and is not intended to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A high-efficiency energy-saving gypsum calcining device, characterized in that, The utility model provides a calcinator, including calcinator (1), the inside of calcinator (1) is equipped with rotating shaft (2), be equipped with first stirring rod (3) on rotating shaft (2), rotating shaft (2) is fixedly connected with driving gear (4), driving gear (4) both sides are equipped with driven gear (5), driven gear (5) is fixedly connected with rotating rod (6), rotating rod (6) is fixedly connected with second stirring rod (7), driven gear (5) outside meshing is connected with gear ring (8), gear ring (8) is fixedly connected with calcinator (1).

2. A high-efficiency energy-saving gypsum calcining device according to claim 1, characterized in that, Two rotating rods (6) are connected by connecting plate (9), and the connecting plate (9) is connected with the rotating shaft (2) through a bearing.

3. The high-efficiency energy-saving gypsum calcining device according to claim 1, characterized in that, One end of the rotating shaft (2) is connected with the output end of the rotating motor (10), and the rotating motor (10) is arranged at the top end of the calcinator (1).

4. The energy efficient gypsum calcining device of claim 1, wherein, One side of the calcinator (1) is provided with a feeding port (11), and the feeding port (11) is provided with two crushing rollers (12) inside. One end of each of the two crushing rollers (12) is provided with a driving gear (13), and the two driving gears (13) are engaged with each other. One end of one of the crushing rollers (12) is connected with the output end of a driving motor (14), and the driving motor (14) is arranged on a support frame (15). The support frame (15) is arranged outside the feeding port (11) and is connected with the calcinator (1).

5. A high efficiency energy saving gypsum calcining device as claimed in claim 4, wherein, A sealing cover (16) is arranged at the top end of the feeding port (11).

6. The energy efficient gypsum calcining device of claim 1, wherein, An exhaust pipe (17) is arranged at the top end of the calcinator (1), one end of the exhaust pipe (17) is connected with a filter box (18), the filter box (18) is provided with a filter screen (19) inside, one side of the filter box (18) is connected with an air pump (20) through a connecting pipe, the air pump (20) is connected with the first air inlet of an air preheater (22) through an air inlet pipe (21), the first air outlet of the air preheater (22) is connected with an exhaust pipe (23), the second air outlet of the air preheater (22) is connected with a calcinator (31) through a reflux pipe (24).

7. The energy efficient gypsum calcining device of claim 6, wherein, One side of the calcinator (31) is provided with a calcination pipe (25), the calcination pipe (25) is connected with a calcination nozzle (27) through a shunt pipe (26), and the calcination nozzle (27) is arranged inside the calcinator (1).

8. The energy efficient gypsum calcining device of claim 1, wherein, A discharge pipe (28) is arranged at the bottom end of the calcinator (1), a valve (29) is arranged on the discharge pipe (28), a support column (30) is arranged outside the discharge pipe (28), and the support column (30) is fixedly connected with the calcinator (1).

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