Rotary kiln drying machine capable of recycling flue gas

Abstract

The utility model relates to the field of rotary kiln drying machines, in particular to a rotary kiln drying machine capable of recycling flue gas, which is characterized in that a heat exchange pipe communicated with a first guide pipe and a second guide pipe is arranged in a water tank, a water inlet pipe is arranged at the upper end of the water tank, a water outlet end is arranged at the lower end of the water tank, and a motor is arranged at one end of a tank body; a plurality of shoveling plates are arranged on the inner wall of the tank body, scraping plates are arranged on the shoveling plates in a sliding mode, a screw rod and a fixing base are arranged in the tank body, the screw rod penetrates through the fixing base, high-temperature flue gas can enter a heat exchange pipe through a first guide pipe, and the high-temperature flue gas in the heat exchange pipe exchanges heat with low-temperature water in the water tank. And after heat exchange, low-temperature flue gas can be discharged to a designated position through the second guide pipe, so that the temperature of water can be increased, and the utilization rate of resources can be increased.

Description

Technical Field

[0001] The utility model relates to the field of rotary kiln dryers, in particular to a rotary kiln dryer for recycling smoke. Background Art

[0002] As we all know, rotary kiln is a kind of thermal equipment widely used in non-ferrous metallurgical plants. In the process of non-ferrous metallurgy, various materials such as concentrate, flux, battery materials, solid fuel, various slag materials, etc. often need to be dried before entering the furnace. The main equipment for drying materials is rotary kiln.

[0003] When the material is dried inside the dryer, the smoke inside the rotary kiln dryer will be directly discharged to the outside. Since the smoke has a certain temperature, it will cause a waste of resources. In addition, the copying plate inside the dryer will turn the material. When encountering materials with high humidity, the material is easy to adhere to the copying plate, affecting the effect of flipping the material. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a rotary kiln dryer for recycling smoke.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotary kiln dryer for flue gas recovery, comprising a tank body, a base is provided at the lower end of the tank body, a water tank located on one side of the tank body is provided at the upper end of the base, a first conduit and a second conduit are provided at both ends of the water tank, a heat exchange tube connected with the first conduit and the second conduit is provided inside the water tank, a water inlet pipe is provided at the upper end of the water tank, a water outlet is provided at the lower end of the water tank, a motor is provided at one end of the tank body, a plurality of scraping plates are provided on the inner wall of the tank body, a scraping plate is slidably provided on the scraping plate, a screw and a fixed seat penetrated by the screw are provided inside the tank body, the fixed seat is threadedly connected to the screw, the fixed seat is connected to the fixed plate through a support rod, and one end of the screw is butt-jointed with the output end of the motor.

[0008] Furthermore, the utility model has the following improvements: the motor is a servo motor.

[0009] In order to facilitate the assembly of the fixing plate, the utility model has the following improvements: a fixing plate is provided at the bottom end of the support rod, and the fixing plate is fixed to the top of the scraper plate by screws.

[0010] Furthermore, the improvement of the utility model is that the heat exchange tube is a spiral structure.

[0011] Furthermore, the utility model has the following improvements: the outer wall of the water tank is provided with anti-corrosion paint.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a rotary kiln dryer for fume recovery and utilization, which has the following beneficial effects:

[0014] In the rotary kiln dryer for flue gas recycling, high-temperature flue gas enters the heat exchange tube through the first conduit, and the high-temperature flue gas in the heat exchange tube exchanges heat with low-temperature water in the water tank. After the heat exchange, the low-temperature flue gas is discharged to a designated position through the second conduit, thereby heating the water and improving the utilization rate of resources.

[0015] When the motor rotates, the screw will rotate. The threaded structure can make the fixed seat move along the screw, so that the support rod can drive the scraper plate to move on the scraper plate. The scraper plate can provide a scraping effect to the scraper plate, which can prevent the material from sticking to the scraper plate, thereby improving the turning effect of the material in the tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model Figure 3 ;

[0019] Figure 4 It is a schematic diagram of the structure of the heat exchange tube in the utility model;

[0020] In the figure: 1. tank body; 2. copying plate; 3. scraper plate; 4. support rod; 5. fixing plate; 6. fixing seat; 7. screw; 8. motor; 9. base; 10. water tank; 11. first conduit; 12. second conduit; 13. heat exchange tube. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4A rotary kiln dryer for flue gas recovery and utilization comprises a tank body 1, a base 9 is provided at the lower end of the tank body 1, a water tank 10 located at one side of the tank body 1 is provided at the upper end of the base 9, a first conduit 11 and a second conduit 12 are provided at both ends of the water tank 10, a heat exchange tube 13 connected to the first conduit 11 and the second conduit 12 is provided inside the water tank 10, a water inlet pipe is provided at the upper end of the water tank 10, a water outlet is provided at the lower end of the water tank 10, a motor 8 is provided at one end of the tank body 1, a plurality of scraping plates 2 are provided on the inner wall of the tank body 1, a scraping plate 3 is slidably provided on the scraping plate 2, a screw 7 and a fixing seat 6 penetrated by the screw 7 are provided inside the tank body 1, and the fixing seat 6 and the screw 7 are connected. Threaded connection, the fixed seat 6 is connected to the fixed plate 5 through the support rod 4, and one end of the screw 7 is connected to the output end of the motor 8. In this structure, the material enters the tank body 1 through the front end of the tank body 1, and the tank body 1 can rotate on the base 9. Since the tank body 1 itself is an inclined structure, the dried material will be discharged at the rear end of the tank body 1. The motor 8 can be fixed at the front end of the tank body 1. When the motor 8 rotates, the screw 7 will rotate. The fixed seat 6 can move along the screw 7 through the action of the threaded structure, so that the support rod 4 can drive the scraper plate 3 to move on the copying plate 2. The scraper plate 3 can provide a scraping effect to the copying plate 2, which can prevent the material from sticking to the copying plate 2, thereby improving the turning effect of the material in the tank body 1;

[0023] The smoke pipe on the tank body 1 is connected to the first conduit 11. At this time, the high-temperature smoke will enter the heat exchange tube 13 through the first conduit 11. The high-temperature smoke in the heat exchange tube 13 exchanges heat with the low-temperature water in the water tank 10. After the heat exchange, the low-temperature smoke will be discharged to a designated position through the second conduit 12, thereby heating the water and improving the utilization rate of resources.

[0024] Furthermore, the motor 8 can be a servo motor.

[0025] When the fixing plate 5 is damaged, it needs to be replaced. The bottom end of the support rod 4 is provided with a fixing plate 5, and the fixing plate 5 is fixed to the top of the scraper plate 3 by screws. The screw fixing method has the advantage of easy assembly.

[0026] In this structure, the heat exchange tube 13 can be a spiral structure, which can improve the utilization rate of the flue gas.

[0027] Furthermore, an anti-corrosion paint is provided on the outer wall of the water tank 10, which can increase the service life of the water tank 10. The water in the water tank 10 can be transported through the provided water inlet pipe and water outlet.

[0028] In the description of this article, it should be noted that relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary kiln dryer for fume recovery, comprising a tank body (1), wherein a base (9) is provided at the lower end of the tank body (1), and characterized in that: The upper end of the base (9) is provided with a water tank (10) located on one side of the tank body (1), the two ends of the water tank (10) are provided with a first conduit (11) and a second conduit (12), the interior of the water tank (10) is provided with a heat exchange tube (13) which is in communication with the first conduit (11) and the second conduit (12), the upper end of the water tank (10) is provided with a water inlet pipe, the lower end of the water tank (10) is provided with a water outlet, one end of the tank body (1) is provided with a motor (8), the inner wall of the tank body (1) is provided with a plurality of scraping plates (2), the scraping plates (3) are slidably arranged on the scraping plates (2), the interior of the tank body (1) is provided with a screw rod (7) and a fixing seat (6) penetrated by the screw rod (7), the fixing seat (6) is threadedly connected to the screw rod (7), the fixing seat (6) is connected to the fixing plate (5) through a support rod (4), and one end of the screw rod (7) is butt-jointed with the output end of the motor (8).

2. The rotary kiln dryer for flue gas recovery according to claim 1, characterized in that: The motor (8) is a servo motor.

3. The rotary kiln dryer for flue gas recovery according to claim 2, characterized in that: A fixing plate (5) is provided at the bottom end of the support rod (4), and the fixing plate (5) is fixed to the top of the scraper plate (3) by means of screws.

4. The rotary kiln dryer for flue gas recovery according to claim 3, characterized in that: The heat exchange tube (13) is a spiral structure.

5. The rotary kiln dryer for flue gas recovery according to claim 4, characterized in that: The outer wall of the water tank (10) is provided with anti-corrosion paint.

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