Waste treatment device for double-roller screening

Abstract

The utility model relates to the technical field of waste material screening, in particular to a double-drum screening waste material treatment device which comprises a first screening mechanism and a second screening mechanism, the first screening mechanism comprises a first screening drum capable of rotating, and the second screening mechanism comprises a second screening drum capable of rotating. The aperture of the second screening cylinder is smaller than that of the first screening cylinder; a waste transfer line is arranged between the first screening mechanism and the second screening mechanism; solid needing to be screened is put into a first screening barrel of the first screening mechanism, small particles are screened to a waste transfer line through the first screening barrel, waste is conveyed to a second screening barrel of the second screening mechanism through the waste transfer line to be subjected to secondary screening, and secondary screening of the waste is achieved; the two screening barrels are adopted for secondary screening, the load of the single screening barrel can be reduced, waste materials which are not screened out by the two screening barrels can be classified respectively, the follow-up sorting workload of workers is reduced, and efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste screening, in particular to a waste processing device with double drum screening. Background Art

[0002] The drum screen is a widely used machine in sorting technology. It controls the garbage sorting by particle size and has high sorting accuracy. When the drum screen is screening the material, the material is put in for screening, but after screening, there will be a lot of dirt on the inner wall of the drum screen, which is inconvenient to clean and affects its reuse.

[0003] Patent announcement number CN217043366U discloses a drum screen, which mainly comprises a working box body, an opening is provided in the middle of one side of the working box body, the edge of the opening is movably connected to the edge of one side of the filter cylinder, a discharge port is provided in the middle of the lower side of the working box body, the middle of the other side of the working box body is fixedly connected to one end of an L-shaped plate, the middle of the upper end of the L-shaped plate is fixedly connected to the lower end of the connecting plate, one side of the L-shaped plate is fixedly connected to a rotating separation mechanism, the separation mechanism includes a motor, one side of the L-shaped plate is fixedly connected to the motor, the output shaft of the motor passes through the middle of one side of the L-shaped plate, and the end of the output shaft of the motor is fixedly connected to the center of bevel gear one.

[0004] The existing drum screens all have the same mesh aperture size, and can only screen particles smaller than the aperture size. After the unscreened waste is discharged through the drum screen, it is mixed with waste of various sizes, and the subsequent staff has a large workload during sorting. Utility Model Content

[0005] The utility model aims to provide a double-drum screening waste processing device to address the deficiencies of the prior art.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A waste material processing device with double drum screening comprises a first screening mechanism and a second screening mechanism, wherein the first screening mechanism comprises a rotatable first screening drum, and the second screening mechanism comprises a rotatable second screening drum, wherein the aperture of the second screening drum is smaller than that of the first screening drum; a waste material transfer line is arranged between the first screening drum and the second screening drum; the waste material transfer line comprises a first conveying line arranged at the bottom of the first screening drum and a second conveying line arranged at the second screening drum, wherein the second conveying line can convey the waste material to the entrance of the second screening drum, and a third conveying line is arranged between the first conveying line and the second conveying line, wherein the third conveying line conveys the waste material of the first conveying line to the second conveying line;

[0008] The first screening drum and the second screening drum are both provided with a discharging line at the discharging locations.

[0009] Further: the first screening mechanism includes a screening support frame, the screening support frame includes a screening column, a transverse support frame is installed on the top of the screening column, and the first screening cylinder is installed on the top of the transverse support frame.

[0010] Furthermore: a screening box is installed on the top of the transverse support frame, the screening box is formed with a screening cavity for installing the first screening cylinder, and a first driving member for driving the first screening cylinder to rotate is arranged in the screening cavity.

[0011] Further: the transverse support frame is provided with a feed support frame, and the feed support frame is equipped with a feed hopper facing the feed point of the first screening cylinder.

[0012] Furthermore: the first conveying line is arranged at the bottom of the transverse support frame, and the transverse support frame is formed with a passing area for the screened solids to pass through, and the waste passing through the first screening cylinder passes through the passing area and falls to the first conveying line.

[0013] Furthermore: a fourth conveying line is arranged below the second screening drum.

[0014] Further: the first screening drum comprises a drum screen and guide drums coaxially installed at both ends of the drum screen, and the guide drums are coaxially installed with rotating flanges.

[0015] Furthermore: the first driving member includes a drum driving shaft parallel to the first screening drum, and rubber-coated driving wheels are respectively installed at both ends of the drum driving shaft, and the rubber-coated driving wheels are rollingly matched with the rotating flange of the guide drum.

[0016] Furthermore: there are two drum drive shafts, which are arranged in parallel on both sides of the first screening drum, and a transmission structure is arranged between the two drum drive shafts.

[0017] Furthermore: the transmission structure includes a double-headed motor, the two driving ends of the double-headed motor are respectively equipped with power shafts, one end of the drum driving shaft is transmission-connected to a reducer, and the outer end of the power shaft is transmission-connected to the reducer.

[0018] The beneficial effects of the utility model are as follows: the solids to be screened are put into the first screening cylinder of the first screening mechanism, the smaller particles are screened to the waste transfer line by the first screening cylinder, and the waste is transported to the second screening cylinder of the second screening mechanism through the waste transfer line for secondary screening, thereby realizing secondary screening of the waste; using two screening cylinders for secondary screening can reduce the load of a single screening cylinder, and the waste not screened by the two screening cylinders can be classified separately, reducing the workload of subsequent workers in sorting and greatly improving the efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the waste treatment device.

[0020] Figure 2It is a schematic diagram of the structure of the first screening cylinder or the second screening cylinder.

[0021] Reference numerals include:

[0022] 1- The first screening mechanism,

[0023] 10- Second screening mechanism,

[0024] 11-first screening cylinder, 12-screening support frame, 13-screening column, 14-lateral support frame,

[0025] 15-screening box, 16-screening chamber, 17-feeding support frame, 18-feeding hopper, 19-second screening cylinder, 2-first driving member,

[0026] 21- drum screen, 22- guide cylinder, 23- rotating flange, 24- drum drive shaft, 25- rubber-coated drive wheel, 26- double-head motor, 27- power shaft, 28- reducer,

[0027] 3- Waste transfer line,

[0028] 31-first conveyor line, 32-second conveyor line, 33-third conveyor line, 34-fourth conveyor line,

[0029] 35-Discharging line. DETAILED DESCRIPTION

[0030] The utility model is described in detail below with reference to the accompanying drawings.

[0031] like Figure 1-2 As shown, a double-drum screening waste treatment device includes a first screening mechanism 1 and a second screening mechanism 10. The first screening mechanism 1 includes a rotatable first screening drum 11, and the second screening mechanism 10 includes a rotatable second screening drum 19. The aperture of the second screening drum 19 is smaller than the aperture of the first screening drum 11.

[0032] A waste transfer line 3 is arranged between the first screening drum 11 and the second screening drum 19; the solid to be screened is put into the first screening drum 11 of the first screening mechanism 1, and the smaller particles are screened to the waste transfer line through the first screening drum 11, and the waste is transported to the second screening drum 19 of the second screening mechanism 10 through the waste transfer line 3 for secondary screening, thereby realizing secondary screening of the waste; using two screening drums for secondary screening can reduce the load of a single screening drum, and the waste not screened by the two screening drums can be classified separately, which reduces the workload of subsequent workers in sorting and greatly improves the efficiency.

[0033] Specifically, the waste transfer line 3 includes a first conveyor line 31 arranged at the bottom of the first screening drum 11 and a second conveyor line 32 arranged at the second screening drum 19. The second conveyor line 32 can convey the waste to the entrance of the second screening drum 19. A third conveyor line 33 is arranged between the first conveyor line 31 and the second conveyor line 32. The waste after screening by the first screening drum 11 falls onto the first conveyor line 31, and the third conveyor line 33 conveys the waste from the first conveyor line 31 to the second conveyor line 32; the waste after the first screening is passed through the second conveyor line 32 to the second screening drum 19 for secondary screening, thereby realizing secondary subdivision of the waste.

[0034] The first screening drum 11 and the second screening drum 19 are both provided with a discharge line 35; after the unscreened waste passes through the first screening drum 11 or the second screening drum 19, it is transported forward through the discharge line 35 to be sorted by the staff. Since the first screening drum 11 and the second screening drum 19 are respectively connected to the discharge line 35, the wastes of the two discharge lines 35 are of different sizes, and preliminary classification is achieved for sorting by the staff.

[0035] Specifically, the first screening mechanism 1 includes a screening support frame 12, the screening support frame 12 includes a screening column 13, a transverse support frame 14 is installed on the top of the screening column 13, the first screening drum 11 is installed on the top of the transverse support frame 14, and the first screening drum 11 is installed obliquely on the transverse support frame 14. The waste entering the first screening drum 11 can move along the length direction of the first screening drum 11, a part of it is screened, and the other part continues to be discharged outward and transported forward through the discharge line 35.

[0036] Furthermore, a screening box 15 is installed on the top of the transverse support frame 14 . The screening box 15 is formed with a screening cavity 16 for installing the first screening drum 11 . The screening cavity 16 is provided with a first driving member 2 for driving the first screening drum 11 to rotate.

[0037] The transverse support frame 14 is provided with a feed support frame 17, and the feed support frame 17 is installed with a feed hopper 18 facing the feed point of the first screening drum 11. The first conveyor line 31 is arranged at the bottom of the transverse support frame 14. The transverse support frame 14 is formed with a passing area for the screened solids to pass through. The waste passing through the first screening drum 11 passes through the passing area and falls to the first conveyor line 31.

[0038] Preferably, the second screening mechanism 10 has the same structural principle as the first screening mechanism 1 , and both use a support frame to tilt the screening drum and use a second driving member that is the same as the first driving member 2 to drive the second screening drum 19 to rotate.

[0039] A fourth conveying line 34 is provided below the second screening drum 19. The waste materials passing through the second screening drum 19 are small waste materials. After passing through the passing area, the waste materials are conveyed by the fourth conveying line 34 to the next process for grinding or secondary crushing.

[0040] The first screening drum 11 includes a drum screen 21 and a guide drum 22 coaxially installed at both ends of the drum screen 21, and the guide drum 22 is coaxially installed with a rotating flange 23; the first driving member 2 includes a drum driving shaft 24 parallel to the first screening drum 11, and rubber-coated driving wheels 25 are respectively installed at both ends of the drum driving shaft 24, and the rubber-coated driving wheel 25 is rollingly matched with the rotating flange 23 of the guide drum 22; when the rolling driving shaft rotates, the rubber-coated driving wheel 25 rotates and rolls with the rotating flange 23 of the guide drum 22, so that the first screening drum 11 rotates to screen the waste size in the screening drum.

[0041] Preferably, there are two drum drive shafts 24, which are arranged in parallel on both sides of the first screening drum 11. A transmission structure is arranged between the two drum drive shafts 24, and the transmission structure includes a double-headed motor 26. The two driving ends of the double-headed motor 26 are respectively equipped with power shafts 27. One end of the drum drive shaft 24 is transmission-connected to a reducer 28, and the outer end of the power shaft 27 is transmission-connected to the reducer 28; the double-headed motor 26 drives the two power shafts 27 to rotate, and under the transmission of the reducer 28, the two drum drive shafts 24 rotate simultaneously and roll with the first screening drum 11, thereby realizing rolling screening of waste.

[0042] In summary, it can be seen that the utility model has the above-mentioned excellent characteristics, which can enhance the performance unprecedented in the prior art and become a product with great practical value.

[0043] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A waste treatment device with double drum screening, comprising a first screening mechanism and a second screening mechanism, wherein the first screening mechanism comprises a rotatable first screening drum, and the second screening mechanism comprises a rotatable second screening drum, characterized in that: The aperture of the second screening cylinder is smaller than the aperture of the first screening cylinder; A waste transfer line is provided between the first screening cylinder and the second screening cylinder; The waste transfer line comprises a first conveying line arranged at the bottom of the first screening drum, and a second conveying line arranged at the second screening drum, wherein the second conveying line can convey the waste to the entrance of the second screening drum, and a third conveying line is arranged between the first conveying line and the second conveying line, and the third conveying line conveys the waste from the first conveying line to the second conveying line; The first screening drum and the second screening drum are both provided with a discharging line at the discharging locations.

2. A double-drum screening waste treatment device according to claim 1, characterized in that: The first screening mechanism comprises a screening support frame, the screening support frame comprises a screening column, a transverse support frame is installed on the top of the screening column, and the first screening cylinder is installed on the top of the transverse support frame.

3. A double-drum screening waste treatment device according to claim 2, characterized in that: A screening box is installed on the top of the transverse support frame. The screening box is formed with a screening cavity for installing the first screening cylinder. A first driving member for driving the first screening cylinder to rotate is arranged in the screening cavity.

4. A double-drum screening waste treatment device according to claim 3, characterized in that: The transverse support frame is provided with a feed support frame, and the feed support frame is equipped with a feed hopper facing the feed position of the first screening cylinder.

5. A double-drum screening waste treatment device according to claim 1, characterized in that: The first conveying line is arranged at the bottom of the transverse support frame, and the transverse support frame is formed with a passing area for the screened solid to pass through. The waste passing through the first screening cylinder passes through the passing area and falls to the first conveying line.

6. A double-drum screening waste treatment device according to claim 1, characterized in that: A fourth conveying line is arranged below the second screening drum.

7. The double-drum screening waste treatment device according to claim 3, characterized in that: The first screening drum comprises a drum screen and guide drums coaxially installed at two ends of the drum screen, and a rotating flange is coaxially installed on the guide drum.

8. A double-drum screening waste treatment device according to claim 7, characterized in that: The first driving member comprises a drum driving shaft parallel to the first screening drum, and rubber-coated driving wheels are respectively installed at both ends of the drum driving shaft, and the rubber-coated driving wheels are rollingly matched with the rotating flange of the guide drum.

9. A double-drum screening waste treatment device according to claim 8, characterized in that: There are two drum drive shafts, which are arranged in parallel on both sides of the first screening drum, and a transmission structure is arranged between the two drum drive shafts.

10. A double-drum screening waste treatment device according to claim 9, characterized in that: The transmission structure comprises a double-headed motor, two driving ends of the double-headed motor are respectively equipped with power shafts, one end of the drum driving shaft is transmission-connected with a reducer, and the outer end of the power shaft is transmission-connected with the reducer.

Images