Tungsten-molybdenum ore powder calcining equipment capable of realizing heat cyclic utilization

Abstract

The utility model discloses tungsten-molybdenum ore powder calcining equipment capable of recycling heat, and particularly relates to the technical field of tungsten-molybdenum calcining equipment, which comprises a calcining box, a calcining cylinder is arranged at the top of the calcining box, an electromagnetic heater is arranged in the calcining box, and a heat circulation mechanism is arranged on one side of the calcining box. Wherein the heat circulation mechanism comprises an air pump arranged on one side of the calcining box, a first conveying pipe is arranged at one end of the air pump, a filter box is arranged at one end of the first conveying pipe, a filter plate is arranged in the filter box, a plurality of adsorption balls are arranged at the top of the filter plate, and a connecting pipe is arranged at the top of the filter box. According to the utility model, through heat recovery and reutilization, the energy utilization rate is greatly improved, the energy consumption is reduced, the waste gas emission is reduced, the pollution to the environment is reduced, the automation degree of the device is high, and the dependence on operators is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tungsten and molybdenum calcining equipment, and more specifically, to a tungsten and molybdenum ore powder calcining equipment with heat circulation utilization. Background Art

[0002] Tungsten-molybdenum material is a special alloy material, mainly composed of two metal elements, tungsten and molybdenum. Calcination is the thermal dissociation or crystal transformation process of natural or artificial compounds. Calcination is widely used in metal materials, ceramic materials, electronic materials and other fields. Among them, tungsten-molybdenum ore powder, ferritic stainless steel, etc. are obtained through the calcination process.

[0003] At present, in the process of calcining tungsten-molybdenum ore powder, there is often a problem that the tungsten-molybdenum ore powder in the calcination device is heated unevenly, resulting in insufficient calcination and high energy consumption.

[0004] After searching, the Chinese patent with publication number CN210464069U discloses a tungsten-molybdenum ore powder calcining equipment. A turret assembly is provided in the inner cavity of the preheating device. The turret assembly rotates and pushes the tungsten-molybdenum ore powder so that it is distributed in the preheating device and enters the calcining device after being evenly heated. The inner cavity of the shell of the calcining device is provided with an annular heating pipe so that the tungsten and molybdenum in the calcining device are heated more evenly. The inner cavity of the calcining device is provided with a material container, which rotates under the drive of the second motor, so that the tungsten and molybdenum are not piled up and are heated more fully, thereby reducing energy consumption.

[0005] However, when this structure is actually used, tungsten and molybdenum are calcined by the calcination device in the inner cavity of the preheating device. After the calcination is completed, the heat energy generated in the inner cavity of the calcination device is simply processed and then discharged into the air. It is difficult to recycle the heat energy generated during the calcination process, thereby reducing energy utilization and polluting the environment. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a tungsten-molybdenum ore powder calcining device with thermal circulation utilization to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A thermal cycle calcining device for tungsten and molybdenum ore powders comprises a calcining box, a calcining tube is arranged on the top of the calcining box, an electromagnetic heater is arranged inside the calcining box, and a thermal cycle mechanism is arranged on one side of the calcining box;

[0009] The thermal circulation mechanism includes an air pump arranged on one side of the calcining box, a first delivery pipe is arranged at one end of the air pump, a filter box is arranged at one end of the first delivery pipe, a filter plate is arranged inside the filter box, a plurality of adsorption balls are arranged on the top of the filter plate, a connecting pipe is arranged on the top of the filter box, a heating box is arranged at one end of the connecting pipe, a plurality of heating rods are arranged inside the heating box, a second delivery pipe is arranged on the top of the heating box, a solenoid valve is arranged on one side of the second delivery pipe, and one end of the second delivery pipe passes through the calcining box and extends into the interior of the calcining box.

[0010] By adopting the above technical solution: in order to greatly improve energy utilization, reduce energy consumption, reduce exhaust gas emissions and reduce pollution to the environment through heat recovery and reuse.

[0011] As a further description of the above technical solution: a feeding mechanism is provided on the top of the calcining cylinder, and the feeding mechanism includes a feeding hopper arranged on the top of the calcining cylinder, a motor is provided on one side of the calcining cylinder, and the output end of the motor is coaxially connected with a rotating shaft, and a spiral auger blade is sleeved on the rotating shaft, and a heating cylinder is sleeved on the calcining cylinder, and a support frame is provided at the bottom of the heating cylinder, and a discharge pipe is provided on one side of the support frame, and one end of the discharge pipe passes through the calcining box and extends into the inside of the calcining box.

[0012] By adopting the above technical solution: in order to facilitate the transportation and preheating of tungsten and molybdenum ore powder raw materials, the use effect is greatly improved.

[0013] As a further description of the above technical solution: an inclined plate is provided at the bottom of the electromagnetic heater, a movable column is provided at the bottom of the inclined plate, a spring is provided inside the movable column, a fixed block is provided at the bottom of the spring, a discharge port is provided on the surface of the inclined plate, a discharge pipe is provided inside the discharge port, one end of the discharge pipe passes through the calcining box and extends to the outside of the calcining box, supporting legs are provided at the four corners of the bottom of the calcining box, universal wheels are provided at the bottom of the supporting legs, and a temperature controller is provided on one side of the electromagnetic heater.

[0014] By adopting the above technical solution: in order to accurately control the temperature during the calcination process to ensure stable product quality, and secondly, the device has a high degree of automation, which reduces dependence on operators.

[0015] Technical effects and advantages of the utility model:

[0016] 1. By setting a heat circulation mechanism, compared with the prior art, the waste gas generated during the calcination process is collected by the heat circulation mechanism, and the air pump is turned on at the same time, so that the heat inside the calcination box is transported to the inside of the filter box through the first delivery pipe, and the large particles of impurities are filtered by the filter plate, and the adsorption ball adsorbs the small particles of impurities, so as to filter the impurities in the hot gas, and then the heat energy is transported to the inside of the heating box through the connecting pipe, and the heat is kept warm by the heating rod inside the heating box. When needed, the solenoid valve is opened, so that the heat energy inside the heating box is transported to the inside of the calcination box again through the second delivery pipe, thereby forming a recycling, which greatly improves the energy utilization rate;

[0017] 2. By setting up a feeding mechanism, compared with the prior art, the tungsten-molybdenum ore powder is poured into the interior of the calcination cylinder through the feeding hopper, and the motor is used to drive the rotating shaft to rotate, and the rotating shaft drives the spiral auger blade to rotate, so as to stir and convey the tungsten-molybdenum ore powder. At the same time, it is preheated by the heating cylinder to make it more fully calcined in the later stage. The electromagnetic heater transmits heat energy to the interior of the calcination box to provide heat for the calcination process. In addition, the inclined plate is inclined, which effectively prevents accumulation on the inclined plate, thereby making the calcination reaction of the tungsten-molybdenum ore powder better and improving the calcination quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the thermal cycle mechanism structure of the utility model.

[0020] Figure 3 It is a schematic diagram of the structure of the feeding mechanism of the utility model.

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the calcining box of the utility model.

[0022] Figure 5 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0023] The accompanying drawings are marked as follows: 1. calcining box; 2. calcining cylinder; 3. electromagnetic heater; 4. air pump; 5. first conveying pipe; 6. filter box; 7. filter plate; 8. adsorption ball; 9. heating box; 10. heating rod; 11. second conveying pipe; 12. feed hopper; 13. motor; 14. spiral auger blade; 15. heating cylinder; 16. discharge pipe; 17. tilting plate; 18. movable column; 19. spring; 20. fixed block; 21. discharge pipe; 22. support leg; 23. universal wheel; 24. temperature controller. DETAILED DESCRIPTION

[0024] 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.

[0025] The embodiments of this application disclose Figure 1-5 The calcining equipment of tungsten and molybdenum ore powder with heat recycling shown in the figure comprises a calcining box 1, a calcining tube 2 is arranged on the top of the calcining box 1, an electromagnetic heater 3 is arranged inside the calcining box 1, and a heat recycling mechanism is arranged on one side of the calcining box 1;

[0026] The heat circulation mechanism includes an air pump 4 arranged at one side of the calcining box 1, a first delivery pipe 5 is arranged at one end of the air pump 4, a filter box 6 is arranged at one end of the first delivery pipe 5, a filter plate 7 is arranged inside the filter box 6, a plurality of adsorption balls 8 are arranged on the top of the filter plate 7, a connecting pipe is arranged on the top of the filter box 6, a heating box 9 is arranged at one end of the connecting pipe, a plurality of heating rods 10 are arranged inside the heating box 9, a second delivery pipe 11 is arranged on the top of the heating box 9, a solenoid valve is arranged on one side of the second delivery pipe 11, one end of the second delivery pipe 11 passes through the calcining box 1, and Extend to the inside of the calcining box 1, turn on the air pump 4, so that the heat inside the calcining box 1 is transported to the inside of the filter box 6 through the first delivery pipe 5, and the large particles of impurities are filtered through the filter plate 7, and the adsorption balls 8 adsorb the small particles of impurities, and then the heat energy is transported to the inside of the heating box 9 through the connecting pipe, and the heat is kept warm and stored by the heating rod 10 inside the heating box 9. When needed, open the solenoid valve to transport the heat energy inside the heating box 9 to the inside of the calcining box 1 again through the second delivery pipe 11, so as to form a recycling method.

[0027] Reference Figure 2-3 As shown, a feeding mechanism is provided at the top of the calcining cylinder 2, and the feeding mechanism includes a feeding hopper 12 arranged at the top of the calcining cylinder 2, a motor 13 is provided on one side of the calcining cylinder 2, and the output end of the motor 13 is coaxially connected with a rotating shaft, and a spiral auger blade 14 is sleeved on the rotating shaft, and a heating cylinder 15 is sleeved on the calcining cylinder 2, and a support frame is provided at the bottom of the heating cylinder 15, and a discharge pipe 16 is provided on one side of the support frame, and one end of the discharge pipe 16 passes through the calcining box 1 and extends to the inside of the calcining box 1, and the raw material tungsten-molybdenum ore powder is put into the calcining box 1 through the feeding mechanism, and the tungsten-molybdenum ore powder is poured into the inside of the calcining cylinder 2 through the feeding hopper 12, and then the motor 13 is started to drive the rotating shaft to rotate, and the rotating shaft drives the spiral auger blade 14 to rotate, so as to stir and convey the tungsten-molybdenum ore powder, and at the same time, it is preheated through the heating cylinder 15, and then enters the inside of the calcining box 1 through the discharge pipe 16, so as to facilitate the next step.

[0028] Reference Figure 4-5 As shown, an inclined plate 17 is provided at the bottom of the electromagnetic heater 3, a movable column 18 is provided at the bottom of the inclined plate 17, a spring 19 is provided inside the movable column 18, a fixed block 20 is provided at the bottom of the spring 19, a discharge port is provided on the surface of the inclined plate 17, a discharge pipe 21 is provided inside the discharge port, one end of the discharge pipe 21 passes through the calcining box 1 and extends to the outside of the calcining box 1, support legs 22 are provided at the four corners of the bottom of the calcining box 1, and universal wheels 23 are provided at the bottom of the support legs 22, a temperature controller 24 is provided on one side of the electromagnetic heater 3, the electromagnetic heater 3 is started to heat the inside of the calcining box 1, and the temperature inside the calcining box 1 is controlled by the temperature controller 24 The temperature is precisely controlled, and the model of the temperature controller 24 is OHR-A303. Then the electromagnetic heater 3 transmits heat energy to the inside of the calcining box 1 to provide heat for the calcining process. The tungsten-molybdenum ore powder in the calcining box 1 undergoes a calcination reaction at high temperature, and the tungsten-molybdenum ore powder falls onto the surface of the inclined plate 17. Due to the weight of the tungsten-molybdenum ore powder, the movable column 18 is squeezed to move downward, and the movable column 18 squeezes the spring 19 to deform, and the inclined plate 17 is inclined, so that the tungsten-molybdenum ore powder falling from the discharge pipe 16 is scattered to prevent accumulation on the inclined plate 17, thereby making the calcination reaction of the tungsten-molybdenum ore powder better, and the calcined tungsten-molybdenum ore powder is discharged from the discharge pipe 21, and the operation is convenient and quick.

[0029] Working principle of the utility model: When the utility model is used, the raw material tungsten-molybdenum ore powder is first put into the calcining box 1 through the feeding mechanism, and the tungsten-molybdenum ore powder is poured into the calcining tube 2 through the feeding hopper 12, and then the motor 13 is started to drive the rotating shaft to rotate, and the rotating shaft drives the spiral auger blade 14 to rotate, so as to stir and transport the tungsten-molybdenum ore powder, and at the same time, it is preheated through the heating tube 15, and then enters the calcining box 1 through the discharge pipe 16, and at the same time, the electromagnetic heater 3 is started to heat the inside of the calcining box 1, and the temperature inside the calcining box 1 is accurately controlled by the temperature controller 24. The model of the temperature controller 24 is OHR-A303, then the electromagnetic heater 3 transmits heat energy to the inside of the calcining box 1 to provide heat for the calcining process. The tungsten-molybdenum ore powder in the calcining box 1 undergoes a calcining reaction at high temperature, and the tungsten-molybdenum ore powder falls onto the surface of the inclined plate 17. Due to the weight of the tungsten-molybdenum ore powder, the movable column 18 is squeezed to move downward, and the movable column 18 squeezes the spring 19 to deform, and the inclined plate 17 is inclined, so that the tungsten-molybdenum ore powder falling from the discharge pipe 16 is scattered to prevent accumulation on the inclined plate 17, thereby making the calcination reaction of the tungsten-molybdenum ore powder better, and the calcined tungsten-molybdenum ore powder is discharged from the discharge pipe 21, and the operation is convenient and fast;

[0030] The waste gas generated during the calcining process is collected by a heat circulation mechanism. First, the air pump 4 is turned on to transport the heat inside the calcining box 1 to the inside of the filter box 6 through the first delivery pipe 5, and the large particles of impurities are filtered through the filter plate 7, and the adsorption balls 8 adsorb the small particles of impurities. Then, the heat energy is transported to the inside of the heating box 9 through the connecting pipe, and the heat is insulated and stored by the heating rod 10 inside the heating box 9. When needed, the solenoid valve is opened to transport the heat energy inside the heating box 9 to the inside of the calcining box 1 again through the second delivery pipe 11, thereby forming a recycling method.

[0031] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A thermal recycling tungsten and molybdenum ore powder calcining device, comprising a calcining box (1), Features: A calcining cylinder (2) is arranged on the top of the calcining box (1), an electromagnetic heater (3) is arranged inside the calcining box (1), and a heat circulation mechanism is arranged on one side of the calcining box (1); The thermal circulation mechanism comprises an air pump (4) arranged at one side of the calcining box (1), a first delivery pipe (5) being arranged at one end of the air pump (4), a filter box (6) being arranged at one end of the first delivery pipe (5), a filter plate (7) being arranged inside the filter box (6), a plurality of adsorption balls (8) being arranged on the top of the filter plate (7), a connecting pipe being arranged at the top of the filter box (6), a heating box (9) being arranged at one end of the connecting pipe, a plurality of heating rods (10) being arranged inside the heating box (9), a second delivery pipe (11) being arranged at the top of the heating box (9), a solenoid valve being arranged at one side of the second delivery pipe (11), and one end of the second delivery pipe (11) passing through the calcining box (1) and extending into the interior of the calcining box (1).

2. The thermal recycling tungsten and molybdenum ore powder calcining equipment according to claim 1, Features: A feeding mechanism is arranged at the top of the calcining cylinder (2), and the feeding mechanism comprises a feeding hopper (12) arranged at the top of the calcining cylinder (2). A motor (13) is arranged on one side of the calcining cylinder (2), and the output end of the motor (13) is coaxially connected to a rotating shaft, and a spiral auger blade (14) is sleeved on the rotating shaft.

3. The thermal recycling tungsten and molybdenum ore powder calcining equipment according to claim 1, Features: A heating tube (15) is sleeved on the calcining tube (2), a support frame is provided at the bottom of the heating tube (15), a discharge pipe (16) is provided on one side of the support frame, and one end of the discharge pipe (16) passes through the calcining box (1) and extends into the interior of the calcining box (1).

4. The thermal recycling tungsten and molybdenum ore powder calcining equipment according to claim 1, Features: An inclined plate (17) is provided at the bottom of the electromagnetic heater (3), and a movable column (18) is provided at the bottom of the inclined plate (17).

5. The thermal recycling calcination equipment for tungsten and molybdenum ore powder according to claim 4, Features: A spring (19) is arranged inside the movable column (18), and a fixing block (20) is arranged at the bottom of the spring (19).

6. The thermal recycling calcination equipment for tungsten and molybdenum ore powder according to claim 4, Features: A discharge port is provided on the surface of the inclined plate (17), a discharge pipe (21) is provided inside the discharge port, and one end of the discharge pipe (21) passes through the calcining box (1) and extends to the outside of the calcining box (1).

7. The thermal recycling tungsten and molybdenum ore powder calcining equipment according to claim 1, Features: The four corners of the bottom of the calcining box (1) are each provided with supporting legs (22), the bottom of the supporting legs (22) is provided with universal wheels (23), and a temperature controller (24) is provided on one side of the electromagnetic heater (3).

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