Rapid feeding mechanism and activated bauxite calcining device

Abstract

The utility model belongs to the technical field of water purification material processing, and particularly relates to a quick feeding mechanism and an activated bauxite calcining device.The quick feeding mechanism comprises a rotary kiln and a feeding assembly, a feeding adapter body is arranged at the kiln tail of the rotary kiln, a feeding port is formed in the top of the feeding adapter body, the feeding assembly is arranged in the feeding adapter body, and the activated bauxite calcining device is arranged in the feeding adapter body. The feeding assembly comprises a first feeding pipe, a second feeding pipe, a first pushing mechanism and a second pushing mechanism, the first feeding pipe is communicated with the feeding opening of the feeding adapter, the second feeding pipe is obliquely arranged, the higher end of the second feeding pipe is communicated with the bottom end of the first feeding pipe, the lower end of the second feeding pipe is inserted into the kiln opening of the kiln tail, and the second pushing mechanism is arranged on the lower end of the second feeding pipe. The first pushing mechanism is arranged at the higher end of the second feeding pipe, the second pushing mechanism is arranged at the lower end of the second feeding pipe, and the first pushing mechanism and the second pushing mechanism are both used for pushing materials. According to the utility model, the flowability of raw materials in the second feeding pipe can be improved, and the feeding speed to the kiln tail is accelerated.

Description

Technical Field

[0001] The utility model belongs to the technical field of water purification material processing, and specifically relates to a fast feeding mechanism and an active bauxite calcining device. Background Art

[0002] Calcium aluminate powder is the main raw material for producing polyaluminum, a water purifier, and calcium aluminate powder is made from high-grade bauxite and limestone through crushing, drying, ball milling, billet making, calcining and grinding.

[0003] A rotary kiln is needed to calcine bauxite. The existing rotary kiln is equipped with a feed adapter at the kiln tail, which is used to receive the material from above and feed it to the rotary kiln. The top of the feed adapter is connected to a decomposition furnace. The top of the decomposition furnace is connected to a primary preheater, a secondary preheater, a tertiary preheater and a quaternary preheater from top to bottom. The raw materials enter the decomposition furnace after being preheated by each level of preheater, and are decomposed under the high temperature of the decomposition furnace. After that, they enter the rotary kiln through the feed adapter, are calcined, and finally discharged from the kiln head. However, the feeding efficiency at the kiln head of the existing rotary kiln is not high. The main reason is that the material fluidity of the curved section of the feed pipe in the feed adapter is poor, which leads to slow material flow in the entire pipeline, affecting the feeding efficiency of the rotary kiln and reducing production efficiency.

[0004] Therefore, improvements are urgently needed. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a fast feeding mechanism and an activated bauxite calcining device, which can accelerate the feeding speed of raw materials at the connecting bend of the first feed pipe and the second feed pipe through a first feed pipe, a second feed pipe and a first pushing mechanism, thereby boosting and improving the fluidity of the raw materials. Then, through the second pushing mechanism, the feeding speed of the second feed pipe to the kiln mouth at the tail of the kiln can be accelerated, thereby boosting and accelerating the feeding.

[0006] In the first aspect, an embodiment of the utility model provides a rapid feeding mechanism, including a rotary kiln and a feeding assembly for calcining active bauxite. The rotary kiln is arranged at an angle, and a feeding adapter is arranged at the tail of the rotary kiln. The tail of the kiln extends into the feeding adapter and is sealed and rotatably connected to the feeding adapter. A feeding port is arranged on the top of the feeding adapter.

[0007] The feed assembly is arranged in the feed adapter body, and the feed assembly includes a first feed pipe, a second feed pipe, a first pushing mechanism and a second pushing mechanism. The top end of the first feed pipe is connected to the feeding port of the feed adapter body, the second feed pipe is arranged obliquely, the higher end of the second feed pipe is a blind end and is connected to the lower end of the first feed pipe, the lower end of the second feed pipe is inserted into the kiln mouth at the kiln tail of the rotary kiln, and a slot is provided on the top of the lower end of the second feed pipe. The first pushing mechanism is arranged at the higher end of the second feed pipe, and the first pushing mechanism includes a hydraulic cylinder arranged outside the feed adapter body and a first pushing mechanism arranged inside the second feed pipe. The piston rod of the hydraulic cylinder passes through the feed adapter body and extends into the second feed pipe and is fixedly connected to the first pushing plate. The extension and retraction direction of the piston rod of the hydraulic cylinder is parallel to the second feed pipe. The second pushing mechanism is arranged at the lower end of the second feed pipe. The second pushing mechanism includes a driving motor arranged outside the feed adapter body and a rotating rod rotatably connected to the inside of the feed adapter body. The rotating rod is located above the slot hole of the second feed pipe. One end of the rotating rod passes through the feed adapter body and is transmission-connected to the output shaft of the driving motor. A plurality of second pushing plates are evenly arranged on the rotating rod, and the width of the second pushing plates is smaller than the width of the slot hole of the second feed pipe.

[0008] Optionally, the first feed pipe is a round tube or a square tube, and the second feed pipe is a square tube.

[0009] Optionally, the second feed pipe is parallel to the rotary kiln.

[0010] Optionally, a support frame is fixedly provided at the bottom of the hydraulic cylinder.

[0011] Optionally, the number of the second pusher plates is 3-6.

[0012] In a second aspect, an embodiment of the utility model provides an activated bauxite calcining device, and the activated bauxite calcining device includes the above-mentioned rapid feeding mechanism.

[0013] The utility model also includes other components that enable a fast feeding mechanism and an activated bauxite calcining device to be used normally, which are all conventional technical means in the art. In addition, the devices or components not limited in the utility model all adopt conventional technical means in the art, such as hydraulic cylinders, drive motors and rotary kilns.

[0014] The working principle of the utility model is that the raw materials decomposed by the decomposition furnace enter the feed adapter body through the feeding port, and enter the second feed pipe along the first feed pipe, the hydraulic cylinder is controlled to stretch the piston rod, and the first push plate is driven to push the raw materials in the second feed pipe from the high end to the low end, and then the hydraulic cylinder retracts the piston rod and stretches the piston rod again to push the material, and such repeated operations play the effect of boosting and improving the fluidity of the raw materials. After the raw materials come under the slot hole of the second feed pipe, the driving motor drives the rotating rod to rotate, and drives the second push plate to rotate clockwise, pushing the raw materials in the lower end of the second feed pipe into the kiln mouth at the tail of the kiln, playing the role of boosting and accelerating the feeding speed, and then the rotary kiln rotates and calcines the raw materials, and finally the calcined materials are discharged from the kiln head.

[0015] The beneficial effect of the utility model is that, through the first feed pipe, the second feed pipe and the first pushing mechanism, the feeding speed of the raw materials at the connecting bend of the first feed pipe and the second feed pipe can be accelerated, which plays a role in boosting and improving the fluidity of the raw materials. Then, through the second pushing mechanism, the feeding speed of the second feed pipe to the kiln mouth at the tail of the kiln can be accelerated, which plays a role in boosting and accelerating the feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 A schematic structural diagram of a rapid feeding mechanism provided in an embodiment of the utility model.

[0018] Figure 2 A schematic structural diagram of a feeding assembly of a rapid feeding mechanism provided in an embodiment of the utility model.

[0019] Figure 3 A schematic diagram of the positional relationship between a second feeding pipe and a second pushing mechanism of a fast feeding mechanism provided in an embodiment of the utility model.

[0020] Figure 4 A schematic diagram of the three-dimensional structure of a second pushing mechanism of a rapid feeding mechanism provided in an embodiment of the utility model.

[0021] In the figure: 1. rotary kiln, 2. kiln tail, 3. feed adapter, 4. feeding port, 5. first feed pipe, 6. second feed pipe, 7. first push mechanism, 8. second push mechanism, 9. slot, 10. hydraulic cylinder, 11. first push plate, 12. drive motor, 13. rotating rod, 14. second push plate, 15. support frame, 16. decomposition furnace. DETAILED DESCRIPTION

[0022] The present invention is described in detail below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description here is only used to explain the present invention, but not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the present invention.

[0023] Example

[0024] like Figure 1-4 As shown, an embodiment of the utility model provides a rapid feeding mechanism, including a rotary kiln 1 for calcining active bauxite and a feeding assembly, the rotary kiln 1 is arranged at an incline, a feeding adapter 3 is arranged at the kiln tail 2 of the rotary kiln 1, the kiln tail 2 extends into the feeding adapter 3, and is sealed and rotatably connected to the feeding adapter 3, and a feeding port 4 is arranged at the top of the feeding adapter 3.

[0025] The feeding assembly is arranged in the feeding adapter body 3, and the feeding assembly includes a first feeding pipe 5, a second feeding pipe 6, a first pushing mechanism 7 and a second pushing mechanism 8. The top end of the first feeding pipe 5 is connected to the feeding port 4 of the feeding adapter body 3, the second feeding pipe 6 is arranged obliquely, and the second feeding pipe 6 is parallel to the rotary kiln 1, the higher end of the second feeding pipe 6 is a blind end and is connected to the lower end of the first feeding pipe 5, the lower end of the second feeding pipe 6 is inserted into the kiln mouth of the kiln tail 2 of the rotary kiln 1, and a slot 9 is provided on the top of the lower end of the second feeding pipe 6. The first pushing mechanism 7 is arranged at the higher end of the second feeding pipe 6, and the first pushing mechanism 7 includes a hydraulic cylinder 10 arranged outside the feeding adapter body 3 and a first The push plate 11, the piston rod of the hydraulic cylinder 10 passes through the feed adapter body 3 and extends into the second feed pipe 6, and is fixedly connected to the first push plate 11, the extension and contraction direction of the piston rod of the hydraulic cylinder 10 is parallel to the second feed pipe 6, and the second push mechanism 8 is arranged at the lower end of the second feed pipe 6, the second push mechanism 8 includes a drive motor 12 arranged outside the feed adapter body 3 and a rotating rod 13 rotatably connected to the inside of the feed adapter body 3, the rotating rod 13 is located above the slot hole 9 of the second feed pipe 6, one end of the rotating rod 13 passes through the feed adapter body 3 and is transmission-connected to the output shaft of the drive motor 12, five second push plates 14 are evenly arranged on the rotating rod 13, and the width of the second push plate 14 is smaller than the width of the slot hole 9 of the second feed pipe 6.

[0026] In addition, the first feed pipe 5 is a round pipe, and the second feed pipe 6 is a square pipe. A support frame 15 is fixedly provided at the bottom of the hydraulic cylinder 10 .

[0027] The utility model also provides an activated bauxite calcining device, which includes the rapid feeding mechanism mentioned in the above embodiment.

[0028] The working principle of the utility model is that the raw materials decomposed by the decomposition furnace 16 enter the feed adapter body 3 through the feeding port 4, and enter the second feed pipe 6 along the first feed pipe 5, control the hydraulic cylinder 10 to stretch the piston rod, drive the first push plate 11 to push the raw materials in the second feed pipe 6 from the high end to the low end, and then the hydraulic cylinder 10 retracts the piston rod and stretches the piston rod again to push the material, and such repeated operations play a role in boosting and improving the fluidity of the raw materials. After the raw materials come under the slot hole 9 of the second feed pipe 6, the driving motor 12 drives the rotating rod 13 to rotate, and drives the second push plate 14 to rotate clockwise, pushing the raw materials in the lower end of the second feed pipe 6 into the kiln mouth of the kiln tail 2, playing a role in boosting and accelerating the feeding speed, and then the rotary kiln 1 rotates and calcines the raw materials, and finally the calcined materials are discharged from the kiln head.

[0029] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A rapid feeding mechanism, comprising a rotary kiln for calcining active bauxite and a feeding assembly, characterized in that: The rotary kiln is arranged at an inclination, and a feed transfer body is arranged at the kiln tail of the rotary kiln. The kiln tail extends into the feed transfer body and is sealed and rotatably connected with the feed transfer body. A feeding port is arranged at the top of the feed transfer body. The feed assembly is arranged in the feed adapter body, and the feed assembly includes a first feed pipe, a second feed pipe, a first pushing mechanism and a second pushing mechanism. The top end of the first feed pipe is connected to the feeding port of the feed adapter body, the second feed pipe is arranged obliquely, the higher end of the second feed pipe is a blind end and is connected to the lower end of the first feed pipe, the lower end of the second feed pipe is inserted into the kiln mouth at the kiln tail of the rotary kiln, a slot is provided on the top of the lower end of the second feed pipe, the first pushing mechanism is arranged at the higher end of the second feed pipe, and the first pushing mechanism includes a An external hydraulic cylinder and a first push plate arranged inside the second feed pipe, the piston rod of the hydraulic cylinder passes through the feed adapter body and extends into the second feed pipe and is fixedly connected to the first push plate, the second push mechanism is arranged at the lower end of the second feed pipe, the second push mechanism includes a drive motor arranged outside the feed adapter body and a rotating rod rotatably connected to the inside of the feed adapter body, the rotating rod is located above the slot hole of the second feed pipe, one end of the rotating rod passes through the feed adapter body and is transmission-connected to the output shaft of the drive motor, and a plurality of second push plates are evenly distributed on the rotating rod.

2. The rapid feeding mechanism according to claim 1, characterized in that: The first feed pipe is a round pipe or a square pipe, and the second feed pipe is a square pipe.

3. The rapid feeding mechanism according to claim 2, characterized in that: The second feed pipe is parallel to the rotary kiln.

4. The rapid feeding mechanism according to claim 3, characterized in that: A supporting frame is fixedly arranged at the bottom of the hydraulic cylinder.

5. The rapid feeding mechanism according to claim 4, characterized in that: The number of the second pusher plates is 3-6.

6. An activated bauxite calcining device, characterized in that: It comprises the rapid feeding mechanism as described in any one of claims 1 to 5 above.

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