Efficient preheating device for limestone in lime kiln

Abstract

The utility model relates to the technical field of limestone processing, in particular to an efficient preheating device for limestone in a lime kiln, which comprises a frame, a charging barrel fixedly arranged on the frame and provided with a feed inlet, and a heating barrel rotatably connected in the charging barrel and provided with a plurality of material plates. The multiple material plates are arranged on the outer surface of the heating cylinder in a circumferential array mode and arranged in the axial direction of the heating cylinder, all the material plates abut against the inner wall of the heating cylinder, a heating cavity is formed between every two adjacent material plates, and the material plates and the interior of the heating cylinder are hollow and communicated; the driving part is used for driving the heating cylinder to rotate; the heating assembly comprises a hot-air blower arranged outside the rack, and an air outlet of the hot-air blower is connected with one end of a central shaft of the heating cylinder through a rotary joint. The limestone heating time can be shortened, and the limestone heating efficiency and the heat source utilization rate are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lime stone processing technical field, concretely relates to a kind of lime kiln limestone high-efficiency preheating device. BACKGROUND

[0002] Limestone is mainly composed of calcium carbonate, lime and limestone are used as raw materials for a large amount of building materials, industry. Limestone can be directly processed into stone and calcined into lime. Lime absorbs moisture or water to become hydrated lime, and hydrated lime is mixed into lime paste, lime paste, etc. It is used as a coating material and a brick and tile adhesive.

[0003] The existing limestone in the processing process, whether it is directly heated with a hot medium or indirectly heated by heat exchange, there is a situation of uneven heating of the contact surface and the interior of the limestone. If all the limestone is to be completely heated, it will result in the extension of the heating time and the waste of part of the heat, thereby affecting the production efficiency of limestone. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of lime kiln limestone high-efficiency preheating device to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A kind of lime kiln limestone high-efficiency preheating device, including rack, the rack is fixedly provided with barrel, the barrel is opened with feed inlet, further including: heating cylinder, the heating cylinder is rotatably connected in barrel, the heating cylinder is provided with multiple material plates, multiple the material plate is arranged on the outer surface of heating cylinder in circumferential array, and it is arranged along the axial direction of heating cylinder, each the material plate is in abutment with the inner wall of barrel, heating cavity is formed between adjacent the material plate, the material plate and heating cylinder interior hollow and communicate;Driving part, for driving heating cylinder rotation;Heating assembly, the heating assembly includes hot air blower arranged outside the rack, the hot air blower air outlet and heating cylinder center axis one end are connected by swivel joint.

[0007] Further, the driving part includes motor fixedly arranged on the rack, and the motor output shaft and heating cylinder center axis are connected by belt drive.

[0008] Further, it further includes poking assembly, the poking assembly includes moving plate slidably arranged between adjacent the material plate, and further includes transmission part, the transmission part makes each the moving plate reciprocatingly move along the axial direction of heating cylinder.

[0009] Further, the transmission part comprises a transmission groove connected at the head and tail and arranged on the inner wall of the barrel, the transmission groove is formed by two symmetrical inclined grooves in communication with each other, each of the moving plates is fixedly provided with a transmission rod, and each of the transmission rods extends into and is slidably connected to the transmission groove.

[0010] Further, the end of the material plate away from the heating barrel is wedge-shaped.

[0011] Further, the bottom of the barrel is provided with a discharge port, the rack is provided with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with a cover body, and the cover body is matched with the discharge port.

[0012] In the above technical solution, the lime kiln limestone efficient preheating device provided by the utility model has the beneficial effects that:

[0013] The heating assembly is arranged, the limestone is added into the barrel from the feeding port, the limestone falls into the heating cavity, the driving member drives the heating barrel to rotate, the hot air generated in the air heater enters the inside of the heating barrel and the inside of each material plate from one end of the heating barrel, the limestone in the heating cavity rotates along with the material plate, thereby being in contact with the material plate, the outer wall of the heating barrel and the inner wall of the barrel respectively, the heated contact surface of the limestone is increased, and in the rotating process of the material plate, the flow of the limestone enables the upper and lower layers of limestone to be continuously circulated and switched, the uniformity of the limestone heating is improved, the heating time of the limestone is shortened, and the limestone heating efficiency and the heat source utilization rate are effectively improved.

[0014] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, rather than limiting the present disclosure.

[0015] This application file provides an overview of various implementations or examples of the technology described in this disclosure and is not intended to be a comprehensive or exhaustive disclosure of the technology disclosed. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0017] Figure 1 The overall structure schematic view provided by the embodiments of the present application is provided.

[0018] Figure 2 The internal structure schematic view provided by the embodiments of the present application is provided.

[0019] Figure 3The heating cylinder and the stirring assembly structure schematic diagram provided by the utility model embodiment;

[0020] Figure 4 The heating cylinder cross section structure schematic diagram provided by the utility model embodiment Figure 1 ;

[0021] Figure 5 The heating cylinder cross section structure schematic diagram provided by the utility model embodiment Figure 2 .

[0022] Mark explanation:

[0023] 1, rack, 11, cylinder, 12, feed inlet, 2, heating cylinder, 21, material plate, 22, heating cavity, 3, driving part, 31, motor, 4, heating assembly, 41, hot air blower, 5, stirring assembly, 51, moving plate, 52, transmission groove, 53, transmission rod, 6, hydraulic cylinder, 61, cover. Specific implementation

[0024] In order to make the purpose, technical scheme and advantage of the embodiment of the present disclosure clearer, the technical scheme of the embodiment of the present disclosure will be described clearly and completely below in combination with the drawings of the embodiment of the present disclosure. Obviously, the described embodiment is a part of the embodiment of the present disclosure, rather than all the embodiments. Based on the described embodiment of the present disclosure, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present disclosure.

[0025] Please refer to Figures 1-5 , a lime kiln limestone efficient preheating device, including rack 1, the rack 1 is fixedly provided with cylinder 11, the cylinder 11 is provided with feed inlet 12, further including: heating cylinder 2, the heating cylinder 2 is rotatably connected in the cylinder 11, the heating cylinder 2 is provided with a plurality of material plates 21, a plurality of the material plates 21 are arranged on the outer surface of the heating cylinder 2 in the form of circumferential array, and are arranged along the axial direction of the heating cylinder 2, each material plate 21 is in abutment with the inner wall of the cylinder 11, the heating cavity 22 is formed between adjacent material plates 21, the material plate 21 is hollow and communicates with the inside of the heating cylinder 2;Driving part 3, which is used for driving the heating cylinder 2 to rotate, heating assembly 4, the heating assembly 4 includes hot air blower 41 arranged outside the rack 1, the air outlet of the hot air blower 41 is connected with one end of the central shaft of the heating cylinder 2 through a rotary joint.The other end of the heating cylinder 2 can be connected with the air inlet of the hot air blower 41 through a pipeline (not shown in the figure), so as to realize the recycling of waste heat and further reduce the heat consumption.

[0026] The limestone is added into the barrel 11 from the feeding port 12, so that the limestone falls into the heating cavity 22, the driving member 3 drives the heating barrel 2 to rotate, the hot air generated in the air heater 41 enters the inside of the heating barrel 2 and the inside of each material plate 21 from one end of the heating barrel 2, the limestone in the heating cavity 22 rotates along with the material plate 21, thereby being in contact with the material plate 21, the outer wall of the heating barrel 2 and the inner wall of the barrel 11 respectively, so that the heated contact surface of the limestone is increased, and in the process of rotating along with the material plate 21, the flow of the limestone causes the limestone in the upper layer and the lower layer to be switched constantly, thereby improving the uniformity of heating of the limestone, further shortening the heating time of the limestone and effectively improving the heating efficiency of the limestone and the heat source utilization rate

[0027] Further, the driving member 3 comprises a motor 31 fixedly arranged on the rack 1, and the output shaft of the motor 31 is connected with the central shaft of the heating barrel 2 through a belt transmission. The motor 31 drives the heating barrel 2 to rotate through the belt transmission, and the belt transmission is a common knowledge and a conventional technical means known to those skilled in the art, which will not be described in detail.

[0028] Further, the material stirring assembly 5 comprises a moving plate 51 slidably arranged between adjacent material plates 21, and further comprises a transmission part, which enables each moving plate 51 to move reciprocally along the axial direction of the heating barrel 2. The transmission part comprises a transmission groove 52 with a first end and a second end connected and arranged on the inner wall of the barrel 11, the transmission groove 52 is formed by two symmetrical inclined grooves communicated with each other, each moving plate 51 is fixedly provided with a transmission rod 53, and each transmission rod 53 extends into and is slidably connected in the transmission groove 52. The moving plate 51 is fixedly provided with a T-shaped sliding block at both ends, and the sliding block is slidably connected in the sliding groove on the moving plate 51.

[0029] The heating barrel 2 drives the material plate 21 to rotate, the material plate 21 drives the moving plate 51 to rotate, the transmission rod 53 on the moving plate 51 is limited by the transmission groove 52, so that the moving plate 51 moves reciprocally along the axial direction of the heating barrel 2 while rotating, thereby automatically driving the limestone accumulated in the heating cavity 22 to move to both sides to increase the heated contact surface and improve the heating efficiency.

[0030] Further, the end of the material plate 21 away from the heating barrel 2 is wedge-shaped, so as to facilitate the movement of the limestone.

[0031] Further, the barrel 11 is provided with a discharging port at the bottom, the rack 1 is provided with a hydraulic cylinder 6, the output end of the hydraulic cylinder 6 is fixedly connected with a cover body 61, and the cover body 61 is matched with the discharging port. After the limestone is heated, the cover body 61 is removed through the hydraulic cylinder 6, so as to facilitate the unloading of the limestone.

[0032] Working principle: the limestone is added into the barrel 11 from the feed inlet 12, so that the limestone falls in the heating cavity 22, the motor 31 drives the heating cylinder 2 to rotate through the belt drive, the heating cylinder 2 drives the material plate 21 to rotate, the material plate 21 drives the moving plate 51 to rotate, the transmission rod 53 on the moving plate 51 is limited by the transmission groove 52, so that the moving plate 51 reciprocates along the axial direction of the heating cylinder 2 while rotating, thereby automatically driving the limestone accumulated in the heating cavity 22 to move to both sides; the hot air generated in the air heater 41 enters the inside of the heating cylinder 2 and each material plate 21 from one end of the heating cylinder 2, the limestone in the heating cavity 22 rotates with the material plate 21, thereby respectively contacting with the material plate 21, the outer wall of the heating cylinder 2 and the inner wall of the barrel 11, thereby increasing the heated contact surface of the limestone, and in the rotating process of following the material plate 21, the flow of the limestone makes the upper and lower limestone continuously circulate and switch, improves the uniformity of heating the limestone, and in turn shortens the heating time of the limestone, effectively improves the heating efficiency of the limestone and the heat source utilization rate.

[0033] The above only describes certain exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection claimed by the present application.

Claims

1. A limestone efficient preheating device for lime kiln, comprising a rack (1), a material cylinder (11) is fixedly arranged on the rack (1), and a feeding port (12) is formed in the material cylinder (11), characterized in that: Also include: The heating cylinder (2) is rotationally connected in the barrel (11), a plurality of material plates (21) are arranged on the heating cylinder (2), a plurality of material plates (21) are arranged on the outer surface of the heating cylinder (2) in a circumferential array, and are arranged along the axial direction of the heating cylinder (2), each material plate (21) abuts the inner wall of the barrel (11), and the heating cavity (22) is formed between adjacent material plates (21), the material plate (21) and the heating cylinder (2) are hollow and communicate; The driving member (3) is used for driving the heating cylinder (2) to rotate; The heating assembly (4) comprises a hot air machine (41) arranged outside the rack (1), and the air outlet of the hot air machine (41) is connected with one end of the central axis of the heating cylinder (2) through a rotary joint.

2. A limestone efficient preheating device for lime kiln according to claim 1, characterized in that, The driving member (3) comprises a motor (31) fixedly arranged on the rack (1), and the output shaft of the motor (31) is connected with the central axis of the heating cylinder (2) through a belt drive.

3. A limestone efficient preheating device for lime kiln according to claim 1, characterized in that, It also includes a stirring assembly (5), the stirring assembly (5) comprises a moving plate (51) slidingly arranged between adjacent material plates (21), and a transmission part, the transmission part enables each moving plate (51) to reciprocate along the axial direction of the heating cylinder (2).

4. A limestone efficient preheating device for lime kiln according to claim 3, characterized in that, The transmission part comprises a transmission groove (52) connected in head and tail on the inner wall of the barrel (11), the transmission groove (52) is formed by two symmetrical inclined grooves in communication with each other, each moving plate (51) is fixedly provided with a transmission rod (53), and each transmission rod (53) extends into and is slidingly connected in the transmission groove (52).

5. A limestone efficient preheating device for lime kiln according to claim 1, characterized in that, The end of the material plate (21) away from the heating cylinder (2) is wedge-shaped.

6. A limestone efficient preheating device for lime kiln according to claim 1, characterized in that, The bottom of the barrel (11) is provided with a discharge port, the rack (1) is provided with a hydraulic cylinder (6), the output end of the hydraulic cylinder (6) is fixedly connected with a cover body (61), and the cover body (61) is matched with the discharge port.

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