Wear-resistant bell-shaped cover of dehydrator

Abstract

The utility model relates to the technical field of garbage recycling, in particular to a wear-resistant bell-shaped cover of a dehydrator. The utility model comprises a base, a machine shell, a shell cover, a feeding hole and a centrifugal separation component, wherein the machine shell is fixedly arranged on the base and vertically arranged along the height direction; the shell cover is detachably arranged above the machine shell in a covering manner; the feeding hole is formed in the shell cover; the centrifugal separation assembly is arranged in the machine shell, the screen is arranged on the centrifugal separation assembly in a sleeving mode and used for making water separated from the garbage in a centrifugal mode, the differential motion assembly is arranged in the machine shell and used for driving the centrifugal separation assembly and the screen to make differential motion, the collecting assembly is arranged in the machine shell and used for collecting the screened water, and the discharging opening is formed in the lower side of the machine shell. The device aims to timely discharge water in garbage as quickly as possible, so that the blades of the dehydrator operate in a dry state.

Description

Technical Field

[0001] This utility model relates to the field of waste recycling technology, and in particular to a wear-resistant bell-shaped cover for a dehydrator. Background Technology

[0002] In the process of waste sorting, to separate different types of waste, the waste is often first soaked in water. Due to the different buoyancy of substances with different densities, floating materials such as plastics and cotton fibers are removed. Then, the sand, gravel, and non-ferrous metals that sink to the bottom are dehydrated before further separation and recycling. Currently, centrifugal dehydrators are commonly used for dehydration. In existing centrifugal dehydrators, waste is fed into a rotating drum through a hollow shaft. Under the centrifugal force generated by high-speed rotation, it is immediately thrown into the drum cavity. Because waste particles have a higher density and greater centrifugal force, they adhere to the inner wall of the drum, forming a solid ring layer. Water, due to its lower density and less centrifugal force, can only form a liquid ring layer inside the solid ring layer. The solid ring layer of waste is slowly pushed by the screw conveyor to the conical end of the drum and continuously discharged through the outlets around the drum. The liquid ring layer of waste is continuously "overflowed" from the weir to the outside of the drum, forming a separated liquid. It then collects and is discharged from the dewatering machine by gravity. Therefore, during the dewatering process, all the water in the waste is wrapped around the outside of the screw column, causing the screw conveyor column to be soaked in water and kept in a wet state for a long time. This greatly reduces its wear resistance and causes the screw blades to wear easily. Utility Model Content

[0003] To address the aforementioned problems, the present invention aims to provide a wear-resistant bell-shaped cover for a dewatering machine, which is designed to remove moisture from the waste as quickly as possible, allowing the dewatering machine blades to operate in a dry state.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A wear-resistant bell-shaped cover for a dewatering machine includes a base, a housing fixed on the base and vertically arranged along the height direction, a detachable cover on the top of the housing, a feed inlet on the cover, a centrifugal separation component rotatably disposed inside the housing and used to drive the waste to centrifugal motion, a screen sleeved on the centrifugal separation component and used to centrifuge and separate water from the waste, a differential motion component disposed inside the housing and used to drive the centrifugal separation component and the screen to move at different speeds, a collection component disposed inside the housing and used to collect the screened water, and a discharge port disposed on the lower side of the housing.

[0006] The centrifugal separation assembly includes a rotating shaft coaxially arranged with the feed inlet and rotatably disposed in the housing, a bell-shaped end fixed at the upper end of the rotating shaft with a diameter smaller than that at the lower end, and a number of scrapers arranged circumferentially and fixed on the side wall of the bell-shaped end.

[0007] Each scraper is inclined along the height of the rotation axis, and the side of each scraper away from the bell-shaped end is set to abut against the inner wall of the screen.

[0008] More preferably, the differential motion assembly includes a differential sleeve rotatably sleeved on a rotating shaft, several extension rods fixed to the upper end of the outer wall of the differential sleeve, a mounting ring sleeved on the differential sleeve and fixedly connected to the inner wall of each extension rod away from the differential sleeve, a differential gearbox fixed in the middle of the housing and used to drive the differential sleeve and the rotating shaft to rotate at different speeds, and a drive motor fixed on the base and connected to the output shaft of the differential gearbox via a pulley drive.

[0009] More preferably, the screen and the mounting ring are detachably connected by fastening screws.

[0010] More preferably, the collection assembly includes a material collection trough that surrounds the outer wall of the screen and is fixed to the upper side of the machine housing with its opening facing upward, and a pair of drainage holes that are respectively provided on the front and rear sides of the inner wall of the material collection trough on the side away from the screen and penetrate through the machine housing.

[0011] This utility model has the following beneficial effects:

[0012] 1. This utility model uses a centrifugal separation component to drive the waste to undergo centrifugal motion on a screen, causing the water in the waste to be thrown out through the screen holes, thereby minimizing the contact time between the water and the scraper, thus ensuring that the scraper is kept as dry as possible and preventing it from being easily worn due to prolonged moisture.

[0013] 2. This utility model utilizes the gravity-induced falling effect of waste in the screen to cause the waste to continuously move downwards along the side wall of the scraper during centrifugal rotation. Because the upper diameter of the bell-shaped end is small, the waste that just enters the screen undergoes low-speed centrifugal motion as the scraper rotates. As the sand and gravel enter the position where the diameter of the bell-shaped end is large, the centrifugal speed gradually increases, causing the sand and gravel to be thrown out of the lower end of the screen at high speed, achieving the effect of rapid material discharge. Attached Figure Description

[0014] Figure 1 This is an overall exploded view of the present invention;

[0015] Figure 2 This is an overall axonometric view of the present invention;

[0016] Figure 3 This is a schematic diagram of the overall cross-section of the present invention.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Base; 2. Housing; 3. Housing cover; 4. Feed inlet; 5. Centrifugal separation assembly; 51. Rotating shaft; 52. Bell-shaped end; 53. Scraper; 6. Screen; 7. Differential motion assembly; 71. Differential sleeve; 72. Extension rod; 73. Mounting ring; 74. Differential gearbox; 75. Drive motor; 8. Collection assembly; 81. Collection trough; 82. Drain hole; 9. Discharge port. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1 As shown, a wear-resistant bell-shaped cover for a dewatering machine according to this embodiment includes a base 1, a housing 2 fixed on the base 1 and vertically arranged along the height direction, a cover 3 detachably mounted on the housing 2, a feed inlet 4 on the cover 3, a centrifugal separation component 5 rotatably mounted inside the housing 2 and used to drive the waste to centrifugal motion, a screen 6 sleeved on the centrifugal separation component 5 and used to centrifuge and separate water from the waste, a differential motion component 7 mounted inside the housing 2 and used to drive the centrifugal separation component 5 and the screen 6 to move at different speeds, a collection component 8 mounted inside the housing 2 and used to collect the screened water, and a discharge port 9 located on the lower side of the housing 2.

[0021] The centrifugal separation assembly 5 includes a rotating shaft 51 coaxially arranged with the feed inlet 4 and rotatably disposed in the housing 2, a bell-shaped end 52 fixed at the upper end of the rotating shaft 51 with a diameter smaller than that at the lower end, and a number of scrapers 53 arranged circumferentially and fixed on the side wall of the bell-shaped end 52.

[0022] Each scraper 53 is inclined along the height direction of the rotation axis 51, and the side of each scraper 53 away from the bell-shaped end 52 is in contact with the inner wall of the screen 6.

[0023] When this product is in use, the waste with a high water content that first enters the screen 6 comes into contact with the upper part of the scraper 53. Because this part of the waste is located at the small diameter of the bell-shaped end 52, the centrifugal force on this waste is smaller at the same rotation speed. As a result, the water in the waste is thrown out of the screen 6 under the action of centrifugal force. The waste that needs to be screened, such as sand and gravel, has a larger diameter and rotates against the inner wall of the screen 6, thereby quickly centrifugally separating the water in the waste from the internal space of the screen 6. This minimizes the time that the scraper 53 is in a humid environment and reduces the risk of wear and tear caused by prolonged water immersion. Under the influence of the gravity of the sand and gravel, the waste moves downward in the screen 6, causing its rotation radius to increase continuously. This leads to an increase in the centrifugal force on the waste, which in turn increases the centrifugal speed of the dehydrated waste. When the waste moves to the lower end of the screen 6, it is quickly thrown out of the lower end of the screen 6, achieving a rapid discharge effect.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the differential motion assembly 7 includes a differential sleeve 71 rotatably mounted on the rotating shaft 51, several extension rods 72 fixed to the upper end of the outer wall of the differential sleeve 71, a mounting ring 73 mounted on the differential sleeve 71 and fixedly connected to the inner wall of each extension rod 72 away from the differential sleeve 71, a differential gearbox 74 fixed in the middle of the housing 2 and used to drive the differential sleeve 71 and the rotating shaft 51 to rotate at different speeds, and a drive motor 75 fixed on the base 1 and connected to the output shaft of the differential gearbox 74 via a pulley drive.

[0025] When in use, this product uses a drive motor 75 to drive a differential gearbox 74 to transmit power, which in turn drives the differential sleeve 71 and the rotating shaft 51 to rotate at different speeds. This causes the bell-shaped end 52 to rotate at high speed, which in turn drives the screen 6 to rotate at low speed. This causes the sand and gravel inside the screen 6 to move and adhere to the screen 6, thus pushing the fine sand on the inner wall of the screen 6 into the screen holes. When the sand and gravel move into the screen holes, they exert a pushing force on the fine sand inside the screen holes, pushing the fine sand accumulated in the screen holes out of the screen 6 and preventing blockage.

[0026] like Figure 1 and Figure 3 As shown, the screen 6 and the mounting ring 73 are detachably connected by fastening screws 10.

[0027] When using this product, the worn screen 6 can be removed and replaced with a new screen 6 by tightening the screws 10, which facilitates the operator's daily maintenance and replacement of vulnerable parts.

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, the collection assembly 8 includes a material collection trough 81 that surrounds the outer wall of the screen 6 and is fixed to the upper side of the housing 2 with the opening facing upward, and a pair of drainage holes 82 that are respectively provided on the front and rear sides of the inner wall of the material collection trough 81 on the side away from the screen 6 and penetrate through the housing 2.

[0029] When in use, this product collects the water that is thrown out through the collection trough 81, and discharges the water in the collection trough 81 by inserting a drain pipe into the drain holes 82 on both sides.

[0030] The working principle of this device is as follows:

[0031] Step 1: Start the drive motor 75 to drive the differential motion component 7 to move, thereby causing the screen 6 and the rotating shaft 51 to rotate, and make the rotation speed of the screen 6 lower than the rotation speed of the rotating shaft 51. Then, pour the garbage into the device from the feed port 4, causing the garbage to enter the screen 6 and be driven to rotate together by the rotating scraper 53.

[0032] Step 2: The waste with a high water content that just entered the screen 6 came into contact with the upper part of the scraper 53. Because this part of the waste was located at the small diameter of the bell-shaped end 52, the centrifugal force on this waste was smaller at the same rotation speed. As a result, the water in the waste was thrown out of the screen 6 under the action of centrifugal force. The waste such as sand and gravel that need to be screened out, because of its larger diameter, was made to rotate against the inner wall of the screen 6. The water thrown out was thrown to the inner wall of the shell cover 3 and flowed into the collection tank 81 under the action of gravity, and was discharged along the drain holes 82 on both sides.

[0033] Step 3: Under the influence of the sand and gravel's own gravity, the waste moves downwards continuously in screen 6, causing its rotation radius to increase continuously. This leads to an increase in the centrifugal force on the waste, which in turn accelerates the centrifugal motion speed of the dehydrated waste. As a result, when the waste moves to the lower end of screen 6, it is quickly thrown out of screen 6, achieving the effect of rapid discharge.

[0034] Step 4: The dehydrated waste falls out of the discharge port 9 and is collected.

[0035] The above description is only a specific embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A wear-resistant bell-shaped cover for a dehydrator, characterized in that: Includes a base (1), a housing (2) fixed on the base (1) and vertically arranged along the height direction, a detachable cover (3) covering the housing (2), a feed inlet (4) on the cover (3), a centrifugal separation component (5) rotatably arranged inside the housing (2) and used to drive the garbage to centrifugal motion, a screen (6) sleeved on the centrifugal separation component (5) and used to centrifuge water away from the garbage, a differential motion component (7) arranged inside the housing (2) and used to drive the centrifugal separation component (5) and the screen (6) to move at different speeds, a collection component (8) arranged inside the housing (2) and used to collect the screened water, and a discharge port (9) arranged on the lower side of the housing (2); The centrifugal separation assembly (5) includes a rotating shaft (51) coaxially arranged with the feed inlet (4) and rotatably disposed in the housing (2), a bell-shaped end (52) fixed at the upper end of the rotating shaft (51) with the upper end diameter smaller than the lower end, and a number of scrapers (53) arranged circumferentially and fixed on the side wall of the bell-shaped end (52). Each scraper (53) is inclined along the height direction of the rotating shaft (51), and the side of each scraper (53) away from the bell-shaped end (52) is in contact with the inner wall of the screen (6).

2. The wear-resistant bell-shaped cover for a dehydrator according to claim 1, characterized in that: The differential motion assembly (7) includes a differential sleeve (71) rotatably sleeved on a rotating shaft (51), several extension rods (72) fixed to the upper end of the outer wall of the differential sleeve (71), a mounting ring (73) sleeved on the differential sleeve (71) and whose inner wall is fixedly connected to the end of each extension rod (72) away from the differential sleeve (71), a differential gearbox (74) fixed in the middle of the housing (2) and used to drive the differential sleeve (71) and the rotating shaft (51) to rotate at different speeds, and a drive motor (75) fixed on the base (1) and connected to the output shaft of the differential gearbox (74) via a pulley drive.

3. The wear-resistant bell-shaped cover for a dehydrator according to claim 2, characterized in that: The screen (6) and the mounting ring (73) are detachably connected by fastening screws (10).

4. The wear-resistant bell-shaped cover for a dehydrator according to claim 1, characterized in that: The collection assembly (8) includes a collection trough (81) that surrounds the outer wall of the screen (6) and is fixed on the upper side of the housing (2) with its opening facing upward, and a pair of drain holes (82) that are respectively provided on the front and rear sides of the inner wall of the collection trough (81) away from the screen (6) and penetrate the housing (2).

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