Traction type burnt soil sterilizing device

Abstract

To provide a traction type fired soil sterilizer capable of efficiently sterilizing the fired soil of raw soil.SOLUTION: Since a traction type roasted soil sterilizer 1 is constituted by arranging a raw soil supply part 30, a roasted soil sterilization part 50 and a roasted soil discharge part 70 in order from the top on a traction frame 10, roasted soil sterilization can be carried out in a relatively narrow space. Since a burned soil discharge part 70 for discharging the burned soil discharged from the rotary drum 51 to the outside of the apparatus is attached to the frame 11 of the traction frame 10, it is not necessary to install and remove a belt conveyor when the apparatus is moved, the load of a worker can be reduced, and the efficiency of the burned soil sterilization work can be improved.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a towable soil scorching sterilization device used in agricultural crop cultivation. [Background technology]

[0002] Patent Document 1 discloses a soil sterilization device (hereinafter referred to as a "conventional sintered soil sterilization device") that includes a tiltable and rotatable rotating drum 7, a hopper 6 for feeding soil that is provided on one side of the rotating drum 7, a combustion device 5 that is provided on the other side of the rotating drum 7, and a plurality of stirring blades 15 fixed inside the rotating drum 7. The conventional sintered soil sterilization device includes wheels 3 and height-adjustable support legs 4, and can be moved using the wheels 3 by retracting the support legs 4 to raise them off the ground (reference numerals 3, 4, 5, 6, 7, 7b, and 15 are those in Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 4-27336 Summary of the Invention [Problem to be solved by the invention]

[0004] In conventional clay scorching sterilization equipment, soil before scorching sterilization (hereinafter referred to as "raw soil") is loaded into hopper 6 by a belt conveyor, and then carried from hopper 6 into rotating drum 7. The raw soil carried into rotating drum 7 is then transported by gravity toward opening 7b while being dried and sterilized, and the soil that has been scorched and sterilized (hereinafter referred to as "scorched soil") is discharged from rotating drum 7 through opening 7b. The scorched soil discharged from rotating drum 7 is received by a belt conveyor and transported to the rear of the equipment (the opposite side from the input conveyor).

[0005] In conventional clay sintering equipment, the loading and unloading conveyors are located at the front and rear of the equipment, so a large space is required to install the conveyors. In addition, when the equipment is moved, the conveyors must also be moved. Furthermore, installing and removing the conveyors takes time and effort, which reduces the efficiency of the clay sintering work.

[0006] An object of the present invention is to provide a towable clay sintering apparatus that can efficiently sterilize raw clay by sintering. [Means for solving the problem]

[0007] The towable clay sintering apparatus of the present invention is characterized by comprising a towable platform having wheels, a raw clay supply unit having a hopper into which raw clay is fed, a clay sintering unit that sterilizes the raw clay supplied from the raw clay supply unit, and a clay sintering discharge unit that discharges the clay sterilized by the clay sintering unit. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a towed type clay sintering sterilization device that can efficiently perform clay sintering sterilization of raw clay. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 2 is an explanatory diagram (assembly diagram) of the present embodiment, and is a right side view of the towed-type scorched clay sterilization device. [Figure 2] FIG. 1 is an explanatory diagram (assembly diagram) of this embodiment, and is a top view of a towed-type scorched clay sterilization device. [Figure 3] FIG. 2 is an explanatory diagram (assembly diagram) of the present embodiment, and is a rear view of the towed-type scorched clay sterilization device. [Figure 4] FIG. 1 is an explanatory diagram (assembly diagram) of this embodiment, and is a front view of a tow-type scorched clay sterilization device. [Figure 5] FIG. 2 is an explanatory diagram of this embodiment, showing the stirring blades as seen from the rear of the rotary drum (the front of the tow-type baked clay sterilizer). [Figure 6]FIG. 2 is an explanatory diagram of the present embodiment, and is a right side view showing the internal structure of the rotary drum. [Figure 7] FIG. 2 is an explanatory diagram of the present embodiment, showing the arrangement of elements provided on the lower frame of the towing cradle. [Figure 8] FIG. 4 is an explanatory diagram of a burnt soil discharge section according to the present embodiment. [Figure 9] FIG. 1 is an explanatory diagram of this embodiment, showing the flow of soil from raw soil to burnt soil. [Figure 10] FIG. 1 is an explanatory diagram of this embodiment, showing a state in which a towed type scorched soil sterilization device is towed by a tractor. DETAILED DESCRIPTION OF THE INVENTION

[0010] An embodiment of the present invention will now be described with reference to the accompanying drawings. For convenience, the "upper side" and "lower side" in Fig. 1 will be referred to as the "upper side" and "lower side", the "left side" and "right side" in Fig. 1 and Fig. 2 will be referred to as the "rear side" and "front side", and the "upper side" and "lower side" in Fig. 2 will be referred to as the "left side" and "right side". The towed-type scorched-earth sterilization apparatus 1 is towed forward ("to the right" in Fig. 1 and Fig. 2) by a tractor 2 (see Fig. 10).

[0011] As shown in Figure 1 or 2, the towable clay sintering device 1 comprises a towable platform 10 having a frame 11, a raw clay supply unit 30 having a hopper 31 to which raw clay is supplied, a clay sintering sterilization unit 50 that sinters the raw clay supplied from the raw clay supply unit 30, and a clay sintering discharge unit 70 that discharges the sintered clay sterilized by the clay sintering sterilization unit 50 to the outside.

[0012] The towing frame 10 has a pair of left and right wheels 14, 14 mounted on the rear of a lower frame 12 that constitutes the lower part of the frame 11. As shown in FIG. 1 or 4, the towing frame 10 has a pair of stands 19, 19 mounted on both the left and right sides of the front end of the lower frame 12. The stands 19, 19 are vertically slidable and can be fixed in position at least in two positions: a grounding position and a towing position. As shown in FIG. 1 or 2, the towing frame 10 has a towing arm 16 mounted in the center of the front end of the lower frame 12. The front end of the towing arm 16 is connected to a link drawbar 17 of the tractor 2 (see FIG. 10).

[0013] As shown in Fig. 1, the raw soil supply unit 30 is provided on an upper frame 13 that constitutes the upper part of the frame 11. The raw soil supply unit 30 has a chute 32 provided at the front end of the raw soil supply unit 30, and a raw soil conveying unit 33 that conveys raw soil charged into a hopper 31 to the chute 32. A grating 34 is attached between the hopper 31 and the raw soil conveying unit 33 to receive (remove) impurities contained in the raw soil. As shown in Fig. 2, a scaffolding 18 is provided on the upper frame 13, which is used when monitoring the raw soil supply unit 30, etc.

[0014] 1 or 2, the raw soil transport section 33 has a screw conveyor 35 composed of a pair of screws 36L, 36R arranged in parallel with a gap in the left-right direction. The screw 36L has a right-handed blade 37L, and the screw 36R has a left-handed blade 37R. The screws 36L and 36R have the same outer diameter and lead.

[0015] 1 or 3, the screw conveyor 35 has a screw drive motor 38, a sprocket 39 attached to the drive shaft of the screw drive motor 38, a sprocket 40 attached to the rear end of the screw 36L, a sprocket 41 attached to the rear end of the screw 36R, a screw drive chain 43 wound around the sprockets 39-41, and a sprocket 42 that applies tension to the screw drive chain 43. When the screw drive motor 38 is operated, the screw 36L rotates to the right (clockwise) in FIG. 3 and the screw 36R rotates to the left (counterclockwise) in FIG. 3.

[0016] As shown in FIG. 1 or 4, the sintering unit 50 is disposed directly below the raw soil supply unit 30. The sintering unit 50 has a cylindrical rotating drum 51. Raw soil transported by the screw conveyor 35 of the raw soil supply unit 30 is supplied (charged) via a chute 32 into an opening at the front end of the rotating drum 51. The rotating drum 51 is rotatably supported by a plurality of (four in this embodiment) drum rollers 52. The plurality of drum rollers 52 are fixed to inclined drum stays 53 provided on the lower frame 12 of the towing platform 10. As a result, the rotation axis of the rotating drum 51 extends in the front-rear direction, and the rear end side is lower than the horizontal plane.

[0017] The scorched earth sterilization unit 50 has a drum drive motor 54, a sprocket (not shown) attached to the drive shaft of the drum drive motor 54, and a drum drive chain 55 wound around a drum sprocket (not shown) provided on the outer periphery of the rotating drum 51. As shown in Figures 5 and 6, a plurality of agitating blades 56 and stays 66 are arranged on the inner periphery of the rotating drum 51. Note that, since the configuration of arranging a plurality of agitating blades 56 on the inner periphery of the rotating drum 51 is well known (for example, Patent Document 1), detailed description of the shape and arrangement of the agitating blades 56 will be omitted.

[0018] As shown in Figure 1 or 7, the scorched earth sterilization section 50 has an oil burner 57 located at the rear of the lower frame 12. The oil burner 57 has a flame exhaust tube 58 whose front end is inserted into the center of the rear end of the rotating drum 51. A fuel tank 59 that stores fuel to be supplied to the oil burner 57 is located on the right side of the rear end of the lower frame 12.

[0019] 1 or 8, the scorched soil discharge section 70 is a discharge conveyor that includes a fixed conveyor 71 that receives the scorched soil discharged from the rear end of the rotating drum 51, and a movable conveyor 75 whose front end is connected to the rear end of the fixed conveyor 71 via a pivot shaft 74. The fixed conveyor 71 has a horizontal section 72 that is located below the scorched soil sterilization section 50 (oil burner 57) and inside the lower frame 12, and an inclined section 73 that extends rearward from the rear end of the horizontal section 72 at a fixed incline (for example, 30 degrees) relative to the horizontal section 72.

[0020] The movable conveyor 75 is rotatable about a pivot 74 between a scorched soil discharge position (see FIG. 1), which is positioned at the same gradient as the inclined section 73 of the fixed conveyor 71, and a towing position (see FIG. 10), which is oriented vertically. In other words, the scorched soil discharge section 70 is bendable so as to raise the movable conveyor 75 on the discharge end side. When the movable conveyor 75 is positioned at the towing position (see FIG. 10), i.e., when the towable scorched soil sterilization apparatus 1 is towed by a tractor 2 (see FIG. 10), the movable conveyor 75 is fixed to the frame 11 of the towing platform 10 by fixing brackets (not shown).

[0021] 8, the burnt soil discharge section 70 has a drive pulley 76 attached to a conveyor drive shaft (not shown) located at the rear end of the movable conveyor 75, a driven pulley 77 attached to a conveyor driven shaft (not shown) located at the front end of the fixed conveyor 71, and an endless belt 78 wound between the drive pulley 76 and the driven pulley 77. The burnt soil discharge section 70 also has a belt drive motor 80 mounted on the frame of the movable conveyor 75 and driving the endless belt 78, a chain 83 wound around a sprocket 81 attached to the drive shaft of the belt drive motor 80 and one side of a double-ended sprocket 82 attached to the frame of the movable conveyor 75, and a chain 85 wound around the other side of the double-ended sprocket 82 and a sprocket 84 attached to the conveyor drive shaft (not shown).

[0022] The burnt soil discharge section 70 has a temperature sensor 87 for measuring the temperature of the burnt soil on the horizontal section 72 of the fixed-side conveyor 71 discharged from the rotating drum 51. A control unit 21 is mounted adjacent to the fuel tank 59 at the rear end of the lower frame 12. Based on the signal output from the temperature sensor 87, the control unit 21 adjusts the heat output of the oil burner 57 so that the temperature of the burnt soil on the fixed-side conveyor 71 reaches the set temperature. The control unit 21 also controls the screw drive motor 38 of the raw soil supply section 30, the drum drive motor 54 of the burnt soil sterilization section 50, and the belt drive motor 80 of the burnt soil discharge section 70. A three-phase generator 88 is mounted on the left side of the rear end of the lower frame 12 as a power source.

[0023] Next, the operation of this embodiment will be described. First, the process from raw soil to scorched soil will be described with reference to Figure 9. When the scorched soil sterilization operation begins, the two wheels 14, 14 and two stands 19, 19 of the towed-type scorched soil sterilization device 1 are grounded (see Figure 4). In addition, the movable conveyor 75 of the scorched soil discharge section 70 is positioned at the scorched soil discharge position.

[0024] First, raw soil is loaded into the hopper 31 by heavy machinery such as a wheel loader. The raw soil loaded into the hopper 31 has impurities removed by a grate 34 and is then received in the raw soil transport section 33. The raw soil in the raw soil transport section 33 is transported forward by a screw conveyor 35 and loaded into the rotating drum 51 from the front end side of the rotating drum 51 via a chute 32. The raw soil in the rotating drum 51 moves rearward due to the inclination of the rotating drum 51, while lumps of soil contained in the raw soil are crushed by a plurality of agitating blades 56.

[0025] Furthermore, as the raw soil inside the rotating drum 51 moves rearward inside the rotating drum 51, it is sterilized by the flame discharged from the flame discharge tube 58 of the oil burner 57. The sterilized scorched soil is discharged from the rear end of the rotating drum 51 and received by the fixed conveyor 71 of the scorched soil discharge unit 70. The scorched soil is transported outside the frame 11 by the scorched soil discharge unit 70 and piled up on the ground behind the towable scorched soil sterilizer 1.

[0026] On the other hand, when moving the towable scorched soil sterilization apparatus 1, as shown in Figure 10, the movable conveyor 75 (the discharge side of the scorched soil discharge section 70) is raised to bend the scorched soil discharge section 70, and the vertically oriented movable conveyor 75 is fixed to the frame 11 of the towing platform 10. In addition, the front end of the towing arm 16 of the towing platform 10 is connected to the link drawbar 17 of the tractor 2, and the stands 19, 19 are fixed in a retracted state. In this state, the towable scorched soil sterilization apparatus 1 can be towed by the tractor 2 by running the tractor 2.

[0027] In conventional clay sintering equipment, the loading and unloading conveyors are located at the front and rear of the equipment, requiring a large space for the conveyors to be installed. Furthermore, in conventional clay sintering equipment, the installation of the conveyors takes time and effort, and in particular, when the equipment is moved, the conveyors must also be moved, which reduces the efficiency of the clay sintering work.

[0028] In contrast to this, in this embodiment, the towable clay scorching sterilization device 1 is configured by arranging, from top to bottom, the raw clay supply section 30, the scorched clay sterilization section 50, and the scorched clay discharge section 70 on the towable platform 10. Therefore, compared to conventional clay scorching sterilization devices, it is possible to reduce the installation space, and clay scorching sterilization can be performed in a relatively small space. In addition, in this embodiment, the burnt soil discharge section 70 (belt conveyor, i.e., discharge conveyor) that discharges the burnt soil discharged from the rotating drum 51 outside the device is attached to the frame 11 (lower frame 12) of the towing platform 10. Therefore, unlike conventional burnt soil sterilization devices, there is no need to install and remove the belt conveyor when moving the device, which reduces the burden on workers and improves the efficiency of the burnt soil sterilization work. [Explanation of symbols]

[0029] 1 towable clay sterilizer, 10 towing platform, 30 raw clay supply section, 31 hopper, 35 screw conveyor, 50 clay sterilizer section, 51 rotating drum, 70 clay discharge section

Claims

1. a towing frame having wheels; a raw soil supply unit having a hopper into which raw soil is introduced; a sintered clay sterilization unit that sinters and sterilizes the raw clay supplied from the raw clay supply unit; a burnt soil discharge unit that discharges the burnt soil that has been burnt soil sterilized by the burnt soil sterilization unit; A towed type baked clay sterilization device characterized by comprising:

2. The towed type scorched clay sterilizer according to claim 1, The towable scorched earth sterilization device is characterized in that the towable platform has a stand that can move between a towable position and an installed position.

3. The towed type scorched clay sterilizer according to claim 1, A towable clay scorching sterilization device characterized in that the raw clay supply unit, the scorched clay sterilization unit, and the scorched clay discharge unit are arranged in layers on the towable platform in this order from top to bottom.

4. The towed type scorched clay sterilizer according to claim 2 or 3, A tow-type clay scorching sterilizer characterized in that the clay scorching discharge section has a discharge conveyor that can be bent so as to raise the discharge end side.

5. The towed type scorched clay sterilizer according to claim 2 or 3, A tow-type clay scorching sterilization device characterized in that the raw clay supply section has a pair of screw conveyors arranged in parallel.

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