Horizontal rotary kiln for roasting particle materials

Abstract

The utility model relates to the technical field of roasting devices, in particular to a horizontal rotary kiln for roasting particle materials, which comprises a feeding device, a kiln body and a discharging device, the feeding device comprises a feeding pipe extending into the kiln body, and the discharging device comprises a discharging pipe extending into the kiln body. The upper end of the feeding pipe is communicated with a connecting pipe, the upper end of the connecting pipe is communicated with a buffer cabin, the upper end of one side of the buffer cabin is provided with an air inlet pipe, the lower end of one side of the buffer cabin is provided with an air outlet pipe, the upper end of the buffer cabin is communicated with a feeding hopper, and an upper feeding valve is further arranged between the feeding hopper and the buffer cabin; a lower discharging valve is arranged in the connecting pipe, and the lower discharging valve is a six-clack butterfly valve; due to the arrangement of the upper feeding valve, the lower discharging valve and the six-clack butterfly valve, sealing and quantitative feeding can be kept in the feeding process.

Description

Technical Field

[0001] This utility model relates to the field of roasting equipment technology, specifically to a horizontal rotary kiln for roasting granular materials. Background Technology

[0002] Currently, rotary kilns are mostly used as roasting equipment for chemical particulate materials. Optimization of roasting equipment can significantly improve the quality of particulate materials, such as control indicators for specific surface area and pore volume.

[0003] The existing rotary kiln technology has the following technical problems: it is impossible to achieve effective sealing and quantitative material entry during the feeding process. Summary of the Invention

[0004] In response to the problems raised in the background art, this utility model provides a horizontal rotary kiln for calcining granular materials. The following is a further description of this utility model.

[0005] A horizontal rotary kiln for calcining granular materials includes a feeding device, a kiln body, and a discharging device. The feeding device is located at the upper end of one side of the kiln body, and the discharging device is located at the lower end of the other side of the kiln body. The kiln body is used for heating and cooling granular materials.

[0006] The feeding device includes a feeding pipe extending into the kiln body. A connecting pipe is connected to the upper end of the feeding pipe, and a buffer chamber is connected to the upper end of the connecting pipe. An air inlet pipe is provided at the upper end of one side of the buffer chamber, and an air outlet pipe is provided at the lower end of the other side. A feeding hopper is connected to the upper end of the buffer chamber. An upper feeding valve is also provided between the feeding hopper and the buffer chamber. A lower discharging valve is provided in the connecting pipe. The lower discharging valve is a six-lobed butterfly valve.

[0007] Preferably, the kiln body includes a furnace tube, a heating section, a cooling section, a support, and a transmission mechanism. The furnace tube is connected to the heating section and the cooling section by bearings. A support is provided at the lower end of the furnace tube. A cavity is provided at the front end of the furnace tube through a bearing. The feed pipe extends into the furnace tube. A transmission mechanism is provided inside the support. The transmission mechanism drives the furnace tube to rotate.

[0008] Preferably, the discharge device includes a discharge box communicating with the furnace tube, and the furnace tube is connected to the discharge box via a bearing, and a discharge valve is provided at the lower end of the discharge box;

[0009] Preferably, a transport device is also provided at the lower end of the discharge device. The transport device includes a hydraulic forklift. A collection box is fixedly provided at the upper end of the hydraulic forklift. A feed pipe is provided at the upper end of the collection box. The feed pipe is connected to the discharge valve. An air inlet and an air outlet are provided on one side of the collection box.

[0010] Preferably, a pressure sensor is provided at the upper end of the discharge box and the cavity;

[0011] Preferably, a conveyor belt driven by an external motor is provided inside the feed pipe;

[0012] Preferably, a scraper is inclinedly provided at the lower end of the conveyor belt, and the scraper is fixedly connected to the inner wall of the feed pipe.

[0013] Preferably, a smoke pipe is connected to the upper end of the cavity;

[0014] Preferably, a control device is provided inside the bracket, and the control device is electrically connected to the upper feed valve, the lower discharge valve, the transmission mechanism, the discharge valve, and an external motor.

[0015] Beneficial effects: Compared with the prior art, this utility model can maintain a sealed and quantitative feeding process by setting an upper feed valve, a lower discharge valve and a six-lobed butterfly valve; Attached Figure Description

[0016] Figure 1 : A schematic diagram of the structure of this utility model;

[0017] In the diagram: 1. Feeding device; 11. Feeding pipe; 12. Connecting pipe; 13. Buffer chamber; 14. Air inlet pipe; 15. Air outlet pipe; 16. Feeding hopper; 17. Upper feed valve; 18. Lower discharge valve; 2. Kiln body; 2. Furnace tube; 21. Heating section; 22. Cooling section; 23. Support; 24. Transmission mechanism; 25. Cavity; 26. Discharge device; 3. Discharge box; 31. Discharge valve; 32. Transport device; 4. Hydraulic forklift; 41. Collection box; 42. Air inlet; 43. Air outlet; 44. Pressure sensor; 5. Conveyor belt; 6. Scraper; 7. Smoke pipe; 8. Control device; 9. Detailed Implementation

[0018] Next, we will combine the appendix Figure 1 A specific embodiment of this utility model will be described in detail below.

[0019] A horizontal rotary kiln for calcining granular materials includes a feeding device 1, a kiln body 2, and a discharging device 3.

[0020] The feeding device 1 is located at the upper end of one side of the kiln body 2, and the discharging device 3 is located at the lower end of the other side of the kiln body 2. The kiln body 2 is used to heat and cool granular materials.

[0021] The feeding device 1 includes a feeding pipe 11 extending into the kiln body 2. The upper end of the feeding pipe 11 is connected to a connecting pipe 12. The upper end of the connecting pipe 12 is connected to a buffer chamber 13. The upper end of one side of the buffer chamber 13 is provided with an air inlet pipe 14, and the lower end of one side is provided with an air outlet pipe 15. The upper end of the buffer chamber 13 is connected to a feeding hopper 16. An upper feeding valve 17 is also provided between the feeding hopper 16 and the buffer chamber 13. A lower discharging valve 18 is provided in the connecting pipe 12. The lower discharging valve 18 is a six-lobed butterfly valve.

[0022] When in use, first close the upper feed valve 17 and the lower discharge valve 18, so that the granular material enters from the feed hopper. Then open the upper feed valve 17, and the material enters the buffer chamber 13. At this time, a protective gas, such as nitrogen, is introduced into the air inlet pipe 14. Then open the air outlet pipe 15 and introduce the protective gas for one end for 3-10 minutes. Then close the air inlet pipe 14 and the air outlet pipe 15 at the same time. At this time, control the lower discharge valve 18 so that the material in the connecting pipe 12 enters the inside of the feed pipe 11. Then it enters the kiln body 2 for firing.

[0023] In this embodiment, the kiln body 2 includes a furnace tube 21, a heating section 22, a cooling section 23, a support 24, and a transmission mechanism 25. The furnace tube 21 is connected to the heating section 22 and the cooling section 23 by bearings. A support 24 is provided at the lower end of the furnace tube 21. A cavity 26 is provided at the front end of the furnace tube 21 through a bearing. The feed pipe 11 extends into the furnace tube 21. A transmission mechanism 25 is provided inside the support 24. The transmission mechanism 25 drives the furnace tube 21 to rotate. This technology is prior art and will not be described in detail here.

[0024] In this embodiment, the discharge device 3 includes a discharge box 31 that is connected to the furnace tube 21, and the furnace tube 21 is connected to the discharge box 31 through a bearing. A discharge valve 32 is provided at the lower end of the discharge box 31.

[0025] In this embodiment, a transport device 4 is also provided at the lower end of the discharge device 3. The transport device 4 includes a hydraulic forklift 41. A collection box 42 is fixedly provided at the upper end of the hydraulic forklift 41. A feed pipe is provided at the upper end of the collection box 42. The feed pipe is connected to the discharge valve 32. An air inlet 43 and an air outlet 44 are provided on one side of the collection box 42.

[0026] In this embodiment, a pressure sensor 5 is provided at the upper end of the discharge box 31 and the cavity 26, which can monitor the gas pressure in the furnace tube in real time and indirectly monitor whether there is a gas leak.

[0027] In this embodiment, a conveyor belt 6 driven by an external motor is provided inside the feed pipe 11, and the material inside the connecting pipe 12 is transported to the furnace tube 21 through the conveyor belt 6.

[0028] In this embodiment, a scraper 7 is inclinedly provided at the lower end of the conveyor belt 6, and the scraper 7 is fixedly connected to the inner wall of the feed pipe 11; the scraper 7 is used to scrape off the residual particulate material on the conveyor belt.

[0029] In this embodiment, a smoke pipe 8 is connected to the upper end of the cavity 26, and the smoke pipe 8 can be externally connected to a fan to remove the smoke and dust generated during roasting.

[0030] In this embodiment, a control device 9 is provided inside the bracket 24. The control device 9 is electrically connected to the upper feed valve 17, the lower discharge valve 18, the transmission mechanism 25, the discharge valve 32, and an external motor.

[0031] Compared with the prior art, this utility model can maintain a sealed and quantitative feeding process by setting an upper feed valve, a lower discharge valve and a six-lobed butterfly valve;

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A horizontal rotary kiln for calcining granular materials, comprising a feeding device (1), a kiln body (2), and a discharging device (3), wherein the feeding device (1) is disposed on the upper end of one side of the kiln body (2), and the discharging device (3) is disposed on the lower end of the other side of the kiln body (2), wherein the kiln body (2) is used for heating and cooling granular materials; characterized in that The feeding device (1) includes a feeding pipe (11) extending into the kiln body (2). The upper end of the feeding pipe (11) is connected to a connecting pipe (12). The upper end of the connecting pipe (12) is connected to a buffer chamber (13). The upper end of one side of the buffer chamber (13) is provided with an air inlet pipe (14), and the lower end of one side is provided with an air outlet pipe (15). The upper end of the buffer chamber (13) is connected to a feeding hopper (16). An upper feeding valve (17) is also provided between the feeding hopper (16) and the buffer chamber (13). A lower discharge valve (18) is provided in the connecting pipe (12). The lower discharge valve (18) is a six-lobed butterfly valve.

2. A horizontal rotary kiln furnace for roasting particulate material as claimed in claim 1, wherein: The kiln body (2) includes a furnace tube (21), a heating section (22), a cooling section (23), a support (24), and a transmission mechanism (25). The furnace tube (21) is connected to the heating section (22) and the cooling section (23) by bearings. A support (24) is provided at the lower end of the furnace tube (21). A cavity (26) is provided at the front end of the furnace tube (21) through a bearing. The feed pipe (11) extends into the furnace tube (21). A transmission mechanism (25) is provided inside the support (24). The transmission mechanism (25) drives the furnace tube (21) to rotate.

3. A horizontal rotary kiln furnace for roasting particulate material as claimed in claim 2, wherein: The discharge device (3) includes a discharge box (31) connected to the furnace tube (21), and the furnace tube (21) is connected to the discharge box (31) through a bearing. A discharge valve (32) is provided at the lower end of the discharge box (31).

4. A horizontal rotary kiln furnace for roasting particulate material as claimed in claim 3, wherein: A transport device (4) is also provided at the lower end of the discharge device (3). The transport device (4) includes a hydraulic forklift (41). A collection box (42) is fixedly provided at the upper end of the hydraulic forklift (41). A feed pipe is provided at the upper end of the collection box (42). The feed pipe is connected to the discharge valve (32). An air inlet (43) and an air outlet (44) are provided on one side of the collection box (42).

5. A horizontal rotary kiln for calcining granular materials according to claim 4, characterized in that: Pressure sensors (5) are provided at the upper end of the discharge box (31) and the cavity (26).

6. A horizontal rotary kiln furnace for roasting particulate material as claimed in claim 5, wherein: A conveyor belt (6) driven by an external motor is provided inside the feed pipe (11).

7. A horizontal rotary kiln furnace for roasting particulate material as claimed in claim 6, wherein: A scraper (7) is inclined at the lower end of the conveyor belt (6), and the scraper (7) is fixedly connected to the inner wall of the feed pipe (11).

8. A horizontal rotary kiln furnace for roasting particulate material according to claim 7, characterised in that: A smoke pipe (8) is connected to the upper end of the cavity (26).

9. A horizontal rotary kiln furnace for roasting particulate material according to claim 8, characterised in that: A control device (9) is provided inside the bracket (24). The control device (9) is electrically connected to the upper feed valve (17), the lower discharge valve (18), the transmission mechanism (25), the discharge valve (32), and an external motor.

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