Temperature-controllable pellet roasting experimental device

Abstract

The utility model discloses a temperature-controllable pellet roasting experiment device, which relates to the technical field of metallurgical equipment and comprises two bases, a U-shaped frame is fixed at the upper ends of the two bases, a hydraulic push rod is fixed at the lower end of a horizontal section of the U-shaped frame, the lower end of the hydraulic push rod is connected with a furnace body, and a roasting cup is mounted at the bottom of the U-shaped frame through a rotating mechanism. A combustion mechanism is installed at the top of the furnace body, an air supply mechanism is installed on one side of the furnace body, a gas conveying pipe is connected between the furnace body and the roasting cup, a hot air butterfly valve is arranged on the gas conveying pipe, a controller module is installed on the U-shaped frame, the combustion mechanism comprises an electronic igniter fixed to one side of the top of the roasting cup, and a fuel gas conveying pipe is fixed to the other side of the top of the roasting cup. According to the utility model, the controller module is used for accurately controlling the air quantity of the fan and the gas conveying quantity, so that the temperature change in the roasting process is more accurately controlled, and the more accurate the roasting temperature simulation is, the greater the experimental significance of roasting pellets is.

Description

TECHNICAL FIELD

[0001] The utility model relates to metallurgical equipment technical field especially relates to a controllable temperature's pellet roasting experimental device. BACKGROUND

[0002] Pellet is the important component of blast furnace burden, and the quality of raw material is also inseparable from the good or bad of blast furnace smelting index. The metallurgical performance of raw material will directly affect the stability and smooth running of blast furnace. It is also the most important thing for the research on the performance of blast furnace raw material to better simulate the pellet roasting production process of rotary kiln, shaft furnace, chain grate machine and the like.

[0003] The existing pellet roasting furnace inputs iron concentrate pellet into the roasting furnace for heating, and the pellet is high-temperature roasted by the heating furnace stove to form iron oxide pellet, and finally the iron oxide pellet is manually output from the discharge port. But there are problems of unstable roasting temperature and air volume, and super-high temperature in the furnace, and the working condition is poor. Therefore, the present application provides a controllable temperature pellet roasting experimental device. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a controllable temperature pellet roasting experimental device, which accurately controls the air volume and gas delivery amount of the fan through the controller module, and further more accurately controls the temperature change of the roasting process. The more accurate the roasting temperature simulation is, the greater the experimental significance of the roasting pellet is, and the deficiencies of the prior art are overcome.

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

[0006] A controllable temperature pellet roasting experimental device, comprising a base, two upper ends of the base are fixed with U-shaped frames, the lower end of the horizontal section of the U-shaped frame is fixed with a hydraulic push rod, the lower end of the hydraulic push rod is connected with a furnace body, the bottom of the U-shaped frame is installed with a roasting cup through a rotating mechanism, the top of the furnace body is installed with a combustion mechanism, one side of the furnace body is installed with a air supply mechanism, the furnace body and the roasting cup are connected with a gas delivery pipe, the gas delivery pipe is provided with a hot air butterfly valve, and the U-shaped frame is installed with a controller module.

[0007] As a further scheme of the utility model: the combustion mechanism comprises an electronic igniter fixed on one side of the top of the roasting cup, the top of the roasting cup is fixed with a gas delivery pipe, and the gas delivery pipe extends to the inside of the roasting cup and is connected with a combustion head.

[0008] As a further scheme of the utility model: a gas solenoid valve is arranged on the gas delivery pipe, and one end of the gas delivery pipe is connected to a liquefied gas tank.

[0009] As a further scheme of the utility model: the outer wall of the furnace body is fixed with a fan, the air outlet end of the fan is connected with an air inlet pipe, one end of the air inlet pipe is connected with one side of the furnace body, a flow regulating valve is installed on the air inlet pipe.

[0010] As a further scheme of the utility model: the rotating mechanism comprises two rotating rods fixed symmetrically at the bottom of the outer wall of the roasting cup, the two rotating rods are rotationally connected with the two vertical sections of the two sides of the U-shaped frame through bearings, a servo motor and a bearing seat are installed on the vertical section of one side of the U-shaped frame, a worm is rotationally installed on the bearing seat through a bearing, one end of the worm is connected with the output end of the servo motor, one end of one of the rotating rods is provided with a worm wheel, and the worm is engaged with the worm wheel.

[0011] As a further scheme of the utility model: the outside of the gas conveying pipe is sleeved with a heat preservation cotton sleeve.

[0012] As a further scheme of the utility model: the roasting cup is provided with a tail gas pipe, and the bottom end of the tail gas pipe is connected with a tail gas butterfly valve.

[0013] The utility model discloses the beneficial effect is:

[0014] Through the accurate control of the fan air volume and the gas delivery amount by the controller module, the temperature change of the roasting process is more accurately controlled, and the more accurate roasting temperature simulation is greater in the experimental significance of the roasting pellet. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the first perspective three-dimensional structure schematic diagram of the pellet roasting experimental device of controllable temperature that the utility model proposes.

[0016] Figure 2 It is the second perspective three-dimensional structure schematic diagram of the pellet roasting experimental device of controllable temperature that the utility model proposes.

[0017] Figure 3 It is the third perspective three-dimensional structure schematic diagram of the pellet roasting experimental device of controllable temperature that the utility model proposes.

[0018] Figure 4 It is the third perspective three-dimensional structure schematic diagram of the pellet roasting experimental device of controllable temperature that the utility model proposes. Figure 2 It is the third perspective three-dimensional structure schematic diagram of the pellet roasting experimental device of controllable temperature that the utility model proposes.

[0019] In the drawing: 1, base; 2, furnace body; 3, U-shaped frame; 4, hydraulic push rod; 5, gas conveying pipe; 6, gas solenoid valve; 7, air inlet pipe; 8, flow regulating valve; 9, fan; 10, rotating rod; 11, roasting cup; 12, controller module; 13, electronic igniter; 14, gas conveying pipe; 15, heat preservation cotton sleeve; 16, hot air butterfly valve; 17, tail gas pipe; 18, tail gas butterfly valve; 19, servo motor; 20, worm; 21, worm wheel. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0021] Embodiment 1, refer to Figures 1-4 A temperature-controllable pellet roasting experimental device, comprising a base 1, the upper end of two base 1 is fixed with a U-shaped frame 3, the horizontal section lower end of U-shaped frame 3 is fixed with a hydraulic push rod 4, the lower end of hydraulic push rod 4 is connected with a furnace body 2, the bottom of U-shaped frame 3 is installed with a roasting cup 11 through a rotating mechanism, the top of furnace body 2 is installed with a combustion mechanism, one side of furnace body 2 is installed with a air supply mechanism, furnace body 2 and roasting cup 11 are connected with a gas delivery pipe 14, the outside of gas delivery pipe 14 is sleeved with a heat preservation cotton sleeve 15.

[0022] The roasting cup 11 is provided with a tail gas pipe 17, the bottom end of tail gas pipe 17 is connected with a tail gas butterfly valve 18, the gas delivery pipe 14 is provided with a hot air butterfly valve 16, the U-shaped frame 3 is installed with a controller module 12.

[0023] The combustion mechanism comprises an electronic igniter 13 fixed on one side of the top of roasting cup 11, the other side of the top of roasting cup 11 is fixed with a gas delivery pipe 5, the gas delivery pipe 5 extends to the inside of roasting cup 11 and is connected with a combustion head, the gas delivery pipe 5 is provided with a gas solenoid valve 6, one end of gas delivery pipe 5 is connected to a liquefied gas tank.

[0024] The outer wall of furnace body 2 is fixed with a fan 9, the air outlet end of fan 9 is connected with an air inlet pipe 7, one end of air inlet pipe 7 is connected with one side of furnace body 2, and the air inlet pipe 7 is installed with a flow regulating valve 8.

[0025] The controller module 12 controls the hydraulic push rod 4 to push the furnace body 2 to descend, and after setting the roasting parameters on the controller module 12, the experiment starts, after the fan 9 blows dry to reach the set time, the hot air butterfly valve 16 is started, the air provided by the fan 9 is introduced into the combustion chamber for combustion support, the tail gas butterfly valve 18 is started, the gas solenoid valve 6 and the electronic igniter 13 are ignited, after successful ignition, the controller module 12 automatically controls the combustion-supporting air flow and the liquefied gas flow, realizes temperature control in the whole roasting process, after the ignition section, the preheating section, the roasting section and the soaking section, the gas solenoid valve 6 and the electronic igniter 13 are cut off, and cooling is carried out.

[0026] Embodiment 2, this embodiment is optimized on the basis of embodiment 1, specifically:

[0027] The rotating mechanism comprises two rotating rods 10 fixed symmetrically at the bottom of the outer wall of the roasting cup 11, and the two rotating rods 10 are rotatably connected with the two vertical sections of the U-shaped frame 3 through bearings; a servo motor 19 and a bearing seat are installed on one vertical section of the U-shaped frame 3; a worm 20 is rotatably installed on the bearing seat through a bearing; one end of the worm 20 is connected with the output end of the servo motor 19; one end of one of the rotating rods 10 is provided with a worm wheel 21; and the worm 20 is engaged with the worm wheel 21.

[0028] After the temperature is reduced to the set time, the experiment is automatically stopped, the operator can control the hydraulic push rod 4 to retract through the controller module 12 to drive the furnace body 2 to rise, then control the servo motor 19 to drive the worm 20 to rotate, and rotate the worm wheel 21, the rotating rod 10 and the roasting cup 11 through the worm 20, so that the roasting cup 11 is overturned, and the pellet can be poured out.

[0029] The above is only the preferred specific implementation mode of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A temperature-controllable pellet induration experimental device comprising a base (1), characterized in that, The upper end of two bases (1) is fixed with a U-shaped frame (3), the lower end of the horizontal section of the U-shaped frame (3) is fixed with a hydraulic push rod (4), the lower end of the hydraulic push rod (4) is connected with a furnace body (2), the bottom of the U-shaped frame (3) is installed with a roasting cup (11) through a rotating mechanism, the top of the furnace body (2) is installed with a combustion mechanism, one side of the furnace body (2) is installed with a air supply mechanism, the furnace body (2) is connected with the roasting cup (11) through a gas conveying pipe (14), the gas conveying pipe (14) is provided with a hot air butterfly valve (16), the U-shaped frame (3) is installed with a controller module (12).

2. The temperature-controllable pellet indurating test device according to claim 1, wherein The combustion mechanism comprises an electronic igniter (13) fixed on one side of the top of the roasting cup (11), the other side of the top of the roasting cup (11) is fixed with a gas conveying pipe (5), the gas conveying pipe (5) extends to the inside of the roasting cup (11) and is connected with a combustion head.

3. The temperature-controllable pellet induration test apparatus according to claim 2, wherein The gas conveying pipe (5) is provided with a gas solenoid valve (6), one end of the gas conveying pipe (5) is connected to a liquefied gas tank.

4. The temperature-controllable pellet indurating test device according to claim 1, wherein The outer wall of the furnace body (2) is fixed with a fan (9), the air outlet end of the fan (9) is connected with an air inlet pipe (7), one end of the air inlet pipe (7) is connected with one side of the furnace body (2), and the air inlet pipe (7) is installed with a flow regulating valve (8).

5. The temperature-controllable pellet indurating test apparatus according to claim 4, wherein The rotating mechanism comprises two rotating rods (10) symmetrically fixed on the bottom of the outer wall of the roasting cup (11), the two rotating rods (10) are both rotationally connected with the two vertical sections of the U-shaped frame (3) through bearings, a servo motor (19) and a bearing seat are installed on the vertical section of one side of the U-shaped frame (3), the bearing seat is rotationally installed with a worm (20) through a bearing, one end of the worm (20) is connected with the output end of the servo motor (19), one end of one of the rotating rods (10) is installed with a worm wheel (21), and the worm (20) is meshed with the worm wheel (21).

6. The temperature-controllable pellet induration test apparatus according to claim 1, wherein The outside of the gas conveying pipe (14) is sleeved with a heat preservation cotton sleeve (15).

7. The temperature-controllable pellet induration test apparatus according to claim 1, wherein The roasting cup (11) is provided with an exhaust pipe (17), and the bottom end of the exhaust pipe (17) is connected with an exhaust butterfly valve (18).

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