A hot air circulation type construction waste drying device

Abstract

The application provides a hot air circulation type construction waste drying device, and relates to the technical field of construction waste drying. The hot air circulation type construction waste drying device comprises a base, a rolling mechanism is installed on the base, a drying cylinder is connected to the rolling mechanism, a blowing mechanism, an air inlet pipeline and a backflow pipeline are further installed on the top of the base. The rolling mechanism is installed on the base, the drying cylinder is installed on the rolling mechanism, the rolling mechanism drives the drying cylinder to rotate, the construction waste is transported into the drying cylinder, the construction waste is driven to move towards the outlet of the drying cylinder during the rotation of the drying cylinder, the blowing mechanism, the air inlet pipeline and the backflow pipeline are installed on the base, so that the blowing mechanism blows hot air into the drying cylinder through the air inlet pipeline, the air flows from one side of the drying cylinder to the other side, the hot air is then absorbed through the backflow pipeline, and the hot air is backflowed into the blowing mechanism, so that the waste heat utilization rate is improved.

Description

Technical Field

[0001] This application relates to the field of construction waste drying, and more specifically, to a hot air circulation type construction waste drying device. Background Technology

[0002] Construction waste is generated during building construction. Some of this waste is recyclable. Currently, when drying construction waste, it is generally necessary to crush it first, and then put the crushed waste into a drying device, where it is dried by electric heating plates. Existing drying devices include hot air drying, which blows hot air onto the construction waste to achieve the purpose of drying. However, this method has the problem of low waste heat utilization. After the hot air dries the construction waste, there is still residual heat in the air, which is directly discharged, resulting in a decrease in heat utilization. To address this, we propose a hot air circulation type construction waste drying device. Utility Model Content

[0003] To overcome the shortcomings of the existing system, this application provides a hot air circulation type construction waste drying device, which can solve the problem of low waste heat utilization rate of the above-mentioned hot air drying device.

[0004] The technical solution adopted by this application embodiment to solve its technical problem is: a hot air circulation type construction waste drying device, including a base, a rolling mechanism installed on the base, a drying cylinder connected to the rolling mechanism, a blower mechanism, an air inlet pipe and a return pipe installed on the top of the base, the air inlet pipe and the return pipe are both connected to the blower mechanism, and the outlet end of the air inlet pipe and the inlet end of the return pipe are respectively located on both sides of the drying cylinder.

[0005] In one specific implementation, the rolling mechanism includes a motor and four support frames, all of which are mounted on the base. Rollers are rotatably connected to each of the four support frames, and the drying cylinder is rotatably connected to the four rollers. The motor drives one of the rollers.

[0006] In one specific implementation, each of the four rollers is fixedly fitted with a first ring gear, and the drying drum is fixedly fitted with two second ring gears, wherein two of the first ring gears are meshed with one of the second ring gears, and the remaining two first ring gears are meshed with the other of the second ring gears.

[0007] In one specific implementation, the drying cylinder is open at both ends, and a plurality of tilting plates are fixedly installed on its inner wall, and the plurality of tilting plates are inclined.

[0008] In one specific implementation, the blower mechanism includes a bracket mounted on the base, a heating box mounted on the bracket, an installation tube connected to one side wall of the heating box, and an electric heating tube mounted on its inner wall, the air inlet pipe and the return pipe being connected to the heating box and the installation tube, respectively.

[0009] In one specific implementation, the blower mechanism further includes a fan installed inside the mounting pipe.

[0010] In one specific implementation, the air inlet pipe includes an annular pipe installed on the base, the top of the annular pipe is connected to the air inlet pipe, and a plurality of air outlet holes are opened on one side wall of the annular pipe, and the air inlet pipe is connected to one side wall of the heating box.

[0011] In one specific implementation, the return pipe includes a sealing plate installed on the top of the base. The sealing plate is in contact with the outlet of the drying cylinder and is also connected to a fixed pipe. A sleeve is threaded onto the fixed pipe, and a flexible hose is rotatably connected to the side wall of the sleeve. The flexible hose is connected to the mounting pipe.

[0012] In one specific implementation, the sealing plate has a notch at its bottom, which is located at the bottom of the drying cylinder.

[0013] In one specific implementation, a filter screen is installed inside the fixed tube, and an activated carbon filter plate is also inserted inside the fixed tube.

[0014] The advantages of this embodiment are: by installing a rolling mechanism on the base, the drying cylinder is installed on the rolling mechanism, the rolling mechanism drives the drying cylinder to rotate, and the construction waste is transported into the drying cylinder. During the rotation of the drying cylinder, the construction waste is driven to move towards the outlet of the drying cylinder. At the same time, a blower mechanism, an air inlet pipe and a return pipe are installed on the base, so that the blower mechanism blows hot air into the drying cylinder through the air inlet pipe, so that the air flows from one side of the drying cylinder to the other side, and then absorbs the hot air through the return pipe, so that the hot air flows back into the blower mechanism, thereby improving the waste heat utilization rate. Attached Figure Description

[0015] Figure 1 A first-view structural schematic diagram of a hot air circulation type construction waste drying device provided for an embodiment of this application;

[0016] Figure 2 A second-view structural schematic diagram of a hot air circulation type construction waste drying device provided for an embodiment of this application;

[0017] Figure 3 A partial cross-sectional structural schematic diagram of a hot air circulation type construction waste drying device provided for an embodiment of this application;

[0018] Figure 4 A cross-sectional view of the return pipe structure of the hot air circulation type construction waste drying device provided in the embodiments of this application.

[0019] In the diagram: 10-base; 20-rolling mechanism; 210-motor; 220-support frame; 230-roller; 240-first ring gear; 250-second ring gear; 30-drying cylinder; 310-tilting plate; 40-blowing mechanism; 410-bracket; 420-heating box; 430-installation pipe; 440-heating tube; 450-fan; 50-air inlet pipe; 510-ring pipe; 520-air inlet pipe; 530-air outlet; 60-return pipe; 610-sealing plate; 620-fixed pipe; 630-sleeve; 640-hose; 650-filter screen; 660-activated carbon filter plate. Detailed Implementation

[0020] The technical solution in this application embodiment aims to solve the problem of low waste heat utilization rate in the aforementioned hot air drying device. The overall approach is as follows:

[0021] Example:

[0022] Please see Figure 1-4 A hot air circulation type construction waste drying device includes a base 10, on which a rolling mechanism 20 is installed. A drying cylinder 30 is connected to the rolling mechanism 20. The rolling mechanism 20 drives the drying cylinder 30 to rotate, causing the construction waste to tumble inside the drying cylinder 30. A blower mechanism 40, an air inlet pipe 50, and a return pipe 60 are also installed on the top of the base 10. The air inlet pipe 50 and the return pipe 60 are both connected to the blower mechanism 40. The blower mechanism 40 generates hot air and delivers the hot air into the air inlet pipe 50, thereby allowing the hot air to enter the drying cylinder 30 to dry the tumbling construction waste. The outlet end of the air inlet pipe 50 and the inlet end of the return pipe 60 are located on both sides of the drying cylinder 30, respectively. The hot air flows from the air inlet pipe 50 to the return pipe 60, allowing the return pipe 60 to absorb air and thus play a reflux role, returning the air to the blower mechanism 40 to improve the waste heat utilization rate.

[0023] See Figure 3 and 4The rolling mechanism 20 includes a motor 210 and four support frames 220, all mounted on the base 10. Rollers 230 are rotatably connected to each of the four support frames 220. The drying cylinder 30 is rotatably connected to the four rollers 230. The motor 210 drives one of the rollers 230. Specifically, a first pulley is fixedly fitted onto the roller 230, and a second pulley is fixedly mounted on the drive shaft of the motor 210. The same transmission belt is wound around the first and second pulleys to enable the motor 210 to drive one of the rollers 230 to rotate. Furthermore, a first ring gear 240 is fixedly fitted onto each of the four rollers 230. Two second ring gears 250 are fixedly mounted on the base 10. Two first ring gears 240 mesh with one of the second ring gears 250, and the remaining two first ring gears 240 mesh with the other second ring gear 250. Thus, the first ring gears 240 drive the second ring gears 250 to rotate, thereby driving the drying cylinder 30 to rotate. It should be noted that two limiting blocks are also fixedly installed on the base 10. Each of the two limiting blocks has a limiting groove on its top. The two end sidewalls of the second ring gear 250 are respectively in sliding contact with the two end sidewalls of the limiting groove to limit the second ring gear 250, thereby limiting the drying cylinder 30.

[0024] See Figure 3 and 4 Both ends of the drying cylinder 30 are open, and several turning plates 310 are fixedly installed on its inner wall. The turning plates 310 are all inclined. When set up, the turning plates 310 are evenly distributed on the inner wall of the drying cylinder 30. When the drying cylinder 30 rotates, it drives the turning plates 310 to move, thereby causing the turning plates 310 to turn the construction waste over. At the same time, since the turning plates 310 are inclined, they drive the construction waste towards the outlet end of the drying cylinder 30.

[0025] See Figure 2 and 3The blower mechanism 40 includes a bracket 410 mounted on a base 10. A pin is mounted on the bottom of the bracket 410, and mounting holes (not shown) are provided on the pin. The pin can be fixed to the base 10 using an existing screw structure. Specifically, a screw is threaded through the hole on the pin and connected to the base 10 to fix the bracket 410. A heating box 420 is mounted on the bracket 410, thereby fixing the heating box 420 above the drying drum 30. One side wall of the heating box 420 is connected to... The mounting tube 430 has an electric heating element 440 installed on its inner wall. The electric heating element 440 generates heat when energized. The air inlet pipe 50 and the return pipe 60 are connected to the heating box 420 and the mounting tube 430, respectively. Furthermore, the blower mechanism 40 also includes a fan 450, which is installed inside the mounting tube 430. When the fan 450 operates, it causes the air inside the mounting tube 430 to flow into the heating box 420, so that the electric heating element 440 heats the air, and at the same time, the hot air flows into the air inlet pipe 50.

[0026] See Figure 3 and 4 The air inlet duct 50 includes an annular pipe 510 installed on the base 10. Specifically, a support is fixedly installed at the bottom of the annular pipe 510, and pins are also installed at the bottom of the support. The pins are installed on the base 10 through a screw structure. The top of the annular pipe 510 is connected to the air inlet pipe 520, and several air outlet holes 530 are opened on one side wall of the annular pipe 510. The air inlet pipe 520 is connected to one side wall of the heating box 420. After the air in the heating box 420 is heated, it enters the annular pipe 510 through the air inlet pipe 520, so that the hot air moves into the drying cylinder 30 from the several air outlet holes 530. It should be noted that the existing conveyor belt can pass through the annular pipe 510 to transport the construction waste into the drying cylinder 30.

[0027] See Figure 3 and 4The return pipe 60 includes a sealing plate 610 installed on the top of the base 10. Specifically, support plates are fixedly connected to both side walls of the sealing plate 610, and pins are also installed on the bottom of the two support plates. The pins are fixed to the base 10 by a screw structure. The sealing plate 610 is in contact with the outlet of the drying cylinder 30, and a fixed pipe 620 is connected to it. A sleeve 630 is threaded on the fixed pipe 620. When installed, the outer wall of the fixed pipe 620 is provided with external threads, and the inner wall of the sleeve 630 is provided with internal threads. The external threads and internal threads are compatible. A flexible hose 640 is rotatably connected to the side wall of the sleeve 630. The flexible hose 640 is made of high-temperature resistant material and is connected to the installation pipe 430, thereby allowing rotation. The sleeve 630 can be removed from the fixed tube 620. Furthermore, the sealing plate 610 has a notch at the bottom, which is located at the bottom of the drying cylinder 30. The notch at the bottom of the sealing plate 610 exposes the bottom outlet of the drying cylinder 30, so that the construction waste is discharged from the bottom outlet of the drying cylinder 30. By setting a conveyor belt below the outlet end of the drying cylinder 30, the construction waste can be discharged onto the conveyor belt for easy transport of the dried construction waste. In addition, a filter screen 650 is installed inside the fixed tube 620, and an activated carbon filter plate 660 is also inserted inside the fixed tube 620. The filter screen 650 is used to block the construction waste and prevent it from entering the fixed tube 620, while the activated carbon filter plate 660 can absorb odors in the hot air.

[0028] When this application is used:

[0029] The motor 210, fan 450, and heating element 440 are started to transport construction waste into the drying cylinder 30. The motor 210 drives one of the first ring gears 240 to rotate, which in turn drives the second ring gear 250 to rotate, thus making the drying cylinder 30 rotate. The drying cylinder 30 drives the turning plate 310 to rotate, turning the construction waste and moving it towards the outlet end of the drying cylinder 30. At the same time, the fan 450 operates to draw air from the installation pipe 430 into the heating box 420. After being heated by the heating element 440, the air enters the air inlet pipe 520 and then enters the ring pipe 510. The hot air is then discharged into the drying cylinder 30 through several air outlets 530, thereby drying the turned construction waste. The hot air moves towards the fixed pipe 620, where suction is generated to draw air from the drying cylinder 30, allowing the air to flow back into the heating box 420, forming a circulation.

[0030] It should be noted that the specific models and specifications of the motor 210, fan 450, and heating element 440 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0031] The power supply and operating principle of the motor 210, the fan 450, and the heating element 440 are clear to those skilled in the art and will not be described in detail here.

[0032] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A hot air circulation type construction waste drying device, characterized in that, Includes a base (10), on which a rolling mechanism (20) is installed, and a drying cylinder (30) is connected to the rolling mechanism (20). A blower mechanism (40), an air inlet pipe (50), and a return pipe (60) are also installed on the top of the base (10). The air inlet pipe (50) and the return pipe (60) are both connected to the blower mechanism (40). The outlet end of the air inlet pipe (50) and the inlet end of the return pipe (60) are located on both sides of the drying cylinder (30).

2. The hot air circulation type construction waste drying device as described in claim 1, characterized in that, The rolling mechanism (20) includes a motor (210) and four support frames (220). The motor (210) and the four support frames (220) are all mounted on the base (10). Rollers (230) are rotatably connected to each of the four support frames (220). The drying cylinder (30) is rotatably connected to the four rollers (230). The motor (210) drives one of the rollers (230).

3. The hot air circulation type construction waste drying device as described in claim 2, characterized in that, Each of the four rollers (230) is fixedly fitted with a first ring gear (240), and the drying cylinder (30) is fixedly fitted with two second ring gears (250). Two of the first ring gears (240) mesh with one of the second ring gears (250), and the remaining two first ring gears (240) mesh with the other of the second ring gears (250).

4. The hot air circulation type construction waste drying device as described in claim 1, characterized in that, The drying cylinder (30) has openings at both ends, and several turning plates (310) are fixedly installed on its inner wall. The turning plates (310) are all inclined.

5. The hot air circulation type construction waste drying device as described in any one of claims 1-4, characterized in that, The blower mechanism (40) includes a bracket (410) mounted on the base (10), a heating box (420) mounted on the bracket (410), an installation tube (430) connected to one side wall of the heating box (420), and an electric heating tube (440) mounted on its inner wall. The air inlet pipe (50) and the return pipe (60) are respectively connected to the heating box (420) and the installation tube (430).

6. The hot air circulation type construction waste drying device as described in claim 5, characterized in that, The blower mechanism (40) further includes a fan (450), which is installed inside the mounting pipe (430).

7. The hot air circulation type construction waste drying device as described in claim 6, characterized in that, The air inlet pipe (50) includes an annular pipe (510) installed on the base (10). The top of the annular pipe (510) is connected to an air inlet pipe (520), and a plurality of air outlet holes (530) are opened on one side wall. The air inlet pipe (520) is connected to one side wall of the heating box (420).

8. The hot air circulation type construction waste drying device as described in claim 6, characterized in that, The return pipe (60) includes a sealing plate (610) installed on the top of the base (10). The sealing plate (610) is in contact with the outlet of the drying cylinder (30) and is also connected to a fixed pipe (620). A sleeve (630) is threaded on the fixed pipe (620). A flexible hose (640) is rotatably connected to the side wall of the sleeve (630). The flexible hose (640) is connected to the mounting pipe (430).

9. The hot air circulation type construction waste drying device as described in claim 8, characterized in that, The sealing plate (610) has a notch at the bottom, which is located at the bottom of the drying cylinder (30).

10. The hot air circulation type construction waste drying device as described in claim 8, characterized in that, A filter screen (650) is installed inside the fixed tube (620), and an activated carbon filter plate (660) is also inserted inside the fixed tube (620).

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