Foreign matter cleaning device used in front of coarse trash rack of sewage treatment tank

Abstract

The utility model belongs to the technical field of sewage treatment, and discloses a foreign matter cleaning device used in front of a coarse trash rack of a sewage treatment tank. Comprising a frame body erected on the upper edge of a sewage treatment pool, a plurality of direct-drive motors fixedly installed on the frame body and grating pieces fixedly installed at the power output ends of the direct-drive motors and arranged in the sewage treatment pool. The foreign matter cleaning mechanism is arranged in front of the blocking and filtering mechanism and used for cleaning the foreign matter intercepted by the blocking and filtering mechanism. The device can improve the effect of blocking and filtering foreign matters. The blocking device is suitable for being used between a water inlet of a sewage treatment tank and the coarse screen trash remover, and is used for blocking and intercepting larger foreign matters entering the coarse screen trash remover.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewage treatment technical field relates to the foreign matter cleaning device, concretely is a kind of foreign matter cleaning device for sewage treatment pool rough barrier screen before. BACKGROUND

[0002] At present, the water inlet of sewage treatment plant is usually provided with rough barrier screen (i.e. rough grid trash cleaner), for preliminary cleaning of sundries in water. For the grid spacing of rough barrier screen is larger (the spacing is usually 200mm), in actual work operation, it is often stopped by larger foreign matter and even damaged, such as plastic bucket, wooden stick, etc. In the prior art, the Chinese utility model patent with publication number CN217724850U discloses a kind of integrated sewage treatment device for township, the scheme is provided with support net plate, filter plate, take-up wheel, pull rope, first motor before grid trash cleaner, tree branches and other bulky floating objects can be blocked by support net plate and filter plate, at the same time, tree branches and other bulky floating objects can be lifted from water and poured on the top of inner plate and shell by support net plate and filter plate, so that tree branches and other bulky floating objects slide down to the top of chain net conveyor. Although the scheme can prevent damage to grid trash cleaner to some extent, there are the following defects in actual application:

[0003] First, the blocking effect is limited. The filter screen has two functions in the above prior art, that is, blocking foreign matter in water and removing foreign matter from water surface and pouring on chain net conveyor. When the filter screen removes foreign matter from water surface and pours, it cannot block foreign matter in water at the same time, so that larger foreign matter in sewage still flows to rough barrier screen, the blocking effect is limited, and the rough grid is still damaged.

[0004] Second, the filtering precision of filter plate is not adjustable. The filtering precision of filter plate is often fixed, and cannot be adjusted according to actual conditions, such as when the filter screen opening of filter plate is large and encounters small cross-sectional area and large volume foreign matter, the filtering precision of filter screen cannot be adjusted flexibly, the filtering effect cannot be better realized, and the adaptation range is narrow. UTILITY MODEL CONTENTS

[0005] To solve the above problems in the prior art, the utility model aims to provide a foreign matter cleaning device before rough barrier screen of sewage treatment pool, to improve the blocking and filtering effect of foreign matter.

[0006] To achieve the above purpose, the utility model employs the following technical scheme: a foreign matter cleaning device before rough barrier screen of sewage treatment pool, comprising:

[0007] The blocking and filtering mechanism is arranged in front of the coarse grid trash cleaner and comprises a frame arranged on the upper edge of the sewage treatment tank, a plurality of direct drive motors fixed on the frame, and a grid piece arranged in the sewage treatment tank and fixed on the power output end of each direct drive motor.

[0008] The foreign matter cleaning mechanism is arranged in front of the blocking and filtering mechanism and is used for cleaning the foreign matter intercepted by the blocking and filtering mechanism.

[0009] As a limitation of the utility model, the utility model further comprises a foreign matter conveying mechanism arranged at a foreign matter output position corresponding to the foreign matter cleaning mechanism; the foreign matter conveying mechanism is a belt conveyor, and a guide plate for guiding the input foreign matter is fixed on the foreign matter input end.

[0010] As a further limitation of the utility model, the foreign matter cleaning mechanism comprises a draining basket used for fishing out the foreign matter from the sewage tank and a moving assembly used for moving the draining basket from the sewage treatment tank to the foreign matter input end of the foreign matter conveying mechanism.

[0011] As a further limitation of the utility model, the draining basket is a hollow square body with an open top and is fixed and connected by a left side frame, a right side frame, a front side frame, a rear side frame and a bottom frame; the left side frame, the right side frame, the front side frame, the rear side frame and the bottom frame are all formed by the fixed and connected vertical rods and horizontal rods in an interlaced manner, the draining opening is formed in the space between the vertical rods and the horizontal rods, the left side frame is detachably connected with the front side frame and the rear side frame, and the bottom end of the left side frame is rotationally connected with the bottom frame.

[0012] As a further limitation of the utility model, the moving assembly comprises a frame, a first rope winding assembly and a second rope winding assembly fixed on the frame; the first rope winding assembly and the second rope winding assembly are the same in structure; the first rope winding assembly comprises two rope winding members which are the same in structure and are arranged above the front side frame and the rear side frame respectively; the rope winding member comprises a rope winding motor fixed on the frame, a rope winding shaft fixed on the power output end of the rope winding motor and a rope winding drum fixed on the rope winding shaft and wound with a pulling rope; the free end of the pulling rope of the first rope winding assembly is fixed on the left side of the front side frame and the rear side frame, and the free end of the pulling rope of the second rope winding assembly is fixed on the right side of the front side frame and the rear side frame.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The utility model discloses a blocking filter mechanism and foreign matter cleaning mechanism are set up before the coarse grid trash cleaner, can block the larger foreign matter, prevent the larger foreign matter from causing the coarse grid trash cleaner to stop even damage.

[0015] (2) The draining basket in the foreign matter cleaning mechanism can better accommodate foreign matter and stably transport the foreign matter to the foreign matter transport mechanism.

[0016] The utility model is suitable for between sewage treatment pool water inlet and coarse grid trash cleaner, is used to block and intercept the larger foreign matter that enters the coarse grid trash cleaner. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be described further in detail below in combination with the drawings and specific embodiments.

[0018] Figure 1 It is the three-dimensional structure schematic diagram of the utility model embodiment;

[0019] Figure 2 It is the structure schematic diagram when the draining basket of the utility model embodiment is in sewage treatment pool;

[0020] Figure 3 It is the structure schematic diagram when the draining basket of the utility model embodiment dumps foreign matter;

[0021] Figure 4 It is the structure schematic diagram of the blocking filter mechanism of the utility model embodiment (hides frame body part side frame);

[0022] Figure 5 It is the structure schematic diagram of the draining basket of the utility model embodiment;

[0023] Figure 6 It is Figure 5 The enlarged schematic diagram of A of

[0024] Figure 7 It is the structure schematic diagram when the left frame of the utility model embodiment opens.

[0025] In the diagram: 1. Frame; 2. Direct drive motor; 6. Grille; 7. Left side frame; 8. Right side frame; 9. Front side frame; 10. Rear side frame; 11. Base frame; 12. Vertical bar; 13. Horizontal bar; 14. Snap ring; 15. Insert rod; 16. Insert rod seat; 17. Frame; 18. Pull rope; 21. Rope winding motor; 22. Rope winding shaft; 23. Rope winding drum; 24. Belt conveyor; 25. Guide plate; 26. Sewage treatment tank; 27. Coarse grille cleaning machine; 28. Drain basket. Detailed Implementation

[0026] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0027] Example 1: A foreign object removal device for front of the coarse trash rack in a sewage treatment pond

[0028] like Figures 1 to 7 As shown, this embodiment includes a blocking and filtering mechanism placed in front of the coarse bar screen cleaner 27, a foreign object cleaning mechanism placed in front of the blocking and filtering mechanism, and a foreign object transport mechanism placed on the table.

[0029] The blocking and filtering mechanism is used to block and intercept larger foreign objects in the sewage before it enters the coarse screen cleaning machine 27, preventing damage to the machine. Simultaneously, it allows adjustment of the spacing between the screen plates 6 according to actual usage needs. The blocking and filtering mechanism includes a frame 1, multiple direct-drive motors 2 fixed on the frame 1, and screen plates 6 installed at the power output end of each direct-drive motor 2. The direct-drive motors 2 are equidistantly spaced on the frame 1; in this embodiment, three direct-drive motors 2 are provided. Each direct-drive motor 2 has a screen plate 6 fixedly mounted at its power output end. The screen plate 6 is cuboid in shape and extends vertically within the sewage treatment tank 26, meaning it is placed within the tank. Adjacent screen plates 6 are equidistant. When adjusting the spacing between the screen plates 6 to allow foreign objects to pass through, the direct-drive motors 2 drive the screen plates 6 to rotate. The rotation angle of the screen plates 6 controls the spacing between them to allow foreign objects to pass through.

[0030] The foreign object removal mechanism is used to clean and recover foreign objects that are blocked by the filter mechanism. The foreign object removal mechanism includes a drain basket 28 and a moving assembly. Figure 5As shown, the draining basket 28 is a hollow square body with an open top, which is fixed and connected by the left side frame 7, the right side frame 8, the front side frame 9, the rear side frame 10 and the bottom frame 11, i.e. the bottom ends of the left side frame 7, the right side frame 8, the front side frame 9 and the rear side frame 10 are fixed and connected with the bottom frame 11, the front side frame 9 and the rear side frame 10 are arranged in parallel, the left side frame 7 and the right side frame 8 are arranged in parallel, the two ends of the right side frame 8 are fixed and connected with the ends of the front side frame 9 and the rear side frame 10 respectively, and the two ends of the left side frame 7 are fixed and connected with the ends of the front side frame 9 and the rear side frame 10 respectively. The left side frame 7, the right side frame 8, the front side frame 9, the rear side frame 10 and the bottom frame 11 are all formed by the vertical rods 12 and the horizontal rods 13 which are fixed and connected alternately, i.e. the horizontal rods 13 and the vertical rods 12 are fixed and connected alternately in a cross shape, and the draining openings are formed in the space between the horizontal rods 13 and the vertical rods 12. In order to facilitate the draining basket 28 to pour the foreign matters into the foreign matter conveying mechanism smoothly, the left side frame 7 in the embodiment can be opened and rotated downward relative to the bottom frame 11. Specifically, the left side frame 7 is detachably connected with the front side frame 9 and the rear side frame 10, and the bottom end of the left side frame 7 is rotationally connected with the bottom frame 11. As shown in the figure, Figure 6 As shown, the detachable connection structure between the left side frame 7 and the front side frame 9 and the detachable connection structure between the left side frame 7 and the rear side frame 10 are the same, and the detachable connection structure between the left side frame 7 and the front side frame 9 is taken as an example. The clasp ring 14 is fixed on the front side frame 9, the plug rod seat 16 is fixed on the left side frame 7, the plug rod 15 can be transversely inserted into the plug rod seat 16 and the clasp ring 14, and the handle of the plug rod 15 limits the plug rod 15 on the plug rod seat 16. After the plug rod 15 is transversely moved away from the clasp ring 14, the left side frame 7 can be detached from the front side frame 9. Of course, the detachable connection structure between the left side frame 7 and the front side frame 9 can also adopt the detachable connection mode of the bolt and the nut in the prior art. The bottom end of the left side frame 7 is rotationally connected with the bottom frame 11, i.e. the horizontal rods 13 at the bottom end of the left side frame 7 and the horizontal rods 13 on the bottom frame 11 are wound by the spring, so that the horizontal rods 13 are both placed in the spring, and the bottom end of the left side frame 7 can rotate relative to the bottom frame 11.

[0031] The moving assembly is used to move the draining basket 28 from the sewage treatment tank 26 to the foreign matter input end of the foreign matter conveying mechanism. The moving assembly can adopt a moving structure capable of achieving the movement trajectory in the prior art. In the embodiment, the moving assembly comprises a frame 17, a first rope winding assembly and a second rope winding assembly, the first rope winding assembly and the second rope winding assembly are of the same structure, and the first rope winding assembly will be taken as an example for description below, and the specific structure of the second rope winding assembly will not be described herein. The first rope winding assembly comprises two rope winding members of the same structure and located above the front side frame 9 and the rear side frame 10 respectively, i.e. one rope winding member is located above the front side frame 9, and the other rope winding member is located above the rear side frame 10. The rope winding member comprises a rope winding motor 21 fixed on the frame 17, a rope winding shaft 22 fixed on the power output end of the rope winding motor 21, and a rope winding drum 23 fixed on the rope winding shaft 22 and wound with the pull rope 18. In the first rope winding assembly, the free end of the pull rope 18 of one of the rope winding members is fixed on the left side of the top end of the front side frame 9, i.e. the side close to the left side frame 7, and the free end of the pull rope 18 of the other rope winding member is fixed on the left side of the top end of the rear side frame 10; in the second rope winding assembly, the free end of the pull rope 18 of one of the rope winding members is fixed on the right side of the top end of the front side frame 9, i.e. the side close to the right side frame 8, and the free end of the pull rope 18 of the other rope winding member is fixed on the right side of the top end of the rear side frame 10. In operation, all the rope winding motors 21 of the first rope winding assembly and the second rope winding assembly drive the rope winding drum 23 to rotate, the pull rope 18 is wound on the rope winding drum 23, and the draining basket 28 moves upward to the height position for dumping foreign matter, i.e. above the foreign matter conveying mechanism. Then, the rope winding drum 23 of the first rope winding assembly does not rotate, the two rope winding motors 21 of the second rope winding assembly drive the rope winding drum 23 to rotate, the pull rope 18 of the second rope winding assembly drives the right side of the draining basket 28 to rise, so that the left side frame 7 is inclined downward, and after the movable insertion rod 15 opens the left side frame 7, the foreign matter in the draining basket 28 is dumped downward.

[0032] The foreign matter conveying mechanism is used to convey the foreign matter dumped from the draining basket 28 outward. The foreign matter conveying mechanism is arranged on the table top and corresponds to the foreign matter output position of the foreign matter cleaning mechanism. The foreign matter conveying mechanism is a belt conveyor 24, and the foreign matter input end is fixed with a guide plate 25 for guiding the input foreign matter, so that the foreign matter dumped downward in the draining basket 28 falls into the foreign matter conveying mechanism under the action of the guide plate 25.

[0033] When the embodiment is used, the frame body 1 of the blocking and filtering mechanism is erected on the table top of the sewage treatment tank 26, and the direct drive motor 2 is also located on the table top. The direct drive motor 2 drives the grid pieces 6 to rotate, and the interval between the grid pieces 6 allowing the foreign matter to pass through is controlled by the rotation angle of the grid pieces 6.

[0034] When the foreign matter blocked by the grid piece 6 is cleaned, all the winding drum motors 21 of the first winding rope assembly and the second winding rope assembly drive the winding drum 23 to rotate, the pulling rope 18 is wound on the winding drum 23, and the draining basket 28 moves upward to above the foreign matter conveying mechanism. Then, the two winding drum motors 21 of the second winding rope assembly drive the winding drum 23 to rotate, the pulling rope 18 of the second winding rope assembly drives the right side of the draining basket 28 to rise, so that the left side frame 7 is tilted downward, after all the inserting rods 15 are transversely moved to open the left side frame 7, the foreign matter in the draining basket 28 falls downward along the guide plate 25 into the foreign matter conveying mechanism.

[0035] It should be noted that the above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments, or equivalently replace some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A foreign matter removal device for use in front of the coarse trash rack of a sewage treatment pond, characterized in that... The application relates to a sewage treatment device. The device comprises a blocking and filtering mechanism arranged in front of a coarse grid sewage cleaner, a frame body arranged on the upper edge of a sewage treatment pool, a plurality of direct-drive motors fixed on the frame body and a grid piece arranged in the sewage treatment pool fixed on the power output end of each direct-drive motor. The device further comprises a foreign matter cleaning mechanism arranged in front of the blocking and filtering mechanism for cleaning the foreign matter intercepted by the blocking and filtering mechanism.

2. A device for cleaning foreign matter before a coarse trash rack of a sewage treatment tank according to claim 1, characterized in that: The device further comprises a foreign matter transporting mechanism arranged corresponding to the foreign matter output position of the foreign matter cleaning mechanism.

3. A device for cleaning foreign matter before a coarse trash rack of a sewage treatment tank according to claim 2, characterized in that: The foreign matter cleaning mechanism comprises a draining basket for fishing out the foreign matter from the sewage treatment pool and a moving assembly for moving the draining basket from the sewage treatment pool to the foreign matter input end of the foreign matter transporting mechanism.

4. The foreign matter cleaning device for use in front of a coarse screen of a sewage treatment tank according to claim 3, characterized in that: The draining basket is a hollow square body with an open top, which is fixed and connected by a left side frame, a right side frame, a front side frame, a rear side frame and a bottom frame.

5. A device for cleaning foreign matter before a coarse trash rack of a sewage treatment tank according to claim 4, characterized in that: The left side frame, the right side frame, the front side frame, the rear side frame and the bottom frame are all formed by the fixed and connected vertical rods and horizontal rods. The space between the vertical rods and the horizontal rods forms a draining port. The left side frame and the front side frame and the left side frame and the rear side frame are detachably connected. The moving assembly comprises a frame, a first rope winding assembly and a second rope winding assembly fixed on the frame. The first rope winding assembly and the second rope winding assembly are the same in structure. The first rope winding assembly comprises two rope winding members which are the same in structure and are arranged above the front side frame and the rear side frame respectively. The rope winding member comprises a rope winding motor fixed on the frame, a rope winding shaft fixed on the power output end of the rope winding motor and a rope winding drum fixed on the rope winding shaft and wound with a pull rope. The free end of the pull rope of the first rope winding assembly is fixed on the left side of the front side frame and the rear side frame. The free end of the pull rope of the second rope winding assembly is fixed on the right side of the front side frame and the rear side frame.

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