Sewage preliminary screening mechanism

Abstract

The utility model relates to a sewage preliminary screening mechanism, which comprises a support frame, a vertical plate and a screening mechanism, the screening mechanism comprises a power shaft movably connected below the support frame, a driven shaft movably connected above the vertical plate, and a screening belt sleeved outside the driving shaft and the driven shaft, the outer surface of the screening belt is connected with a dirt separation rake, and the dirt separation rake is connected with the vertical plate. A stamping pipe, a flushing pipe and an inner flushing pipe are sequentially arranged above one side of the vertical plate from top to bottom, a drainage groove and a sewage guide plate are arranged on the other side of the vertical plate, a downward pressing pipe communicated with the stamping pipe is arranged above the driven shaft, and the lower surface of the downward pressing pipe is communicated with a flushing hole. A rotating pipe communicated with the inner flushing pipe is movably connected into the driven shaft, the upper surface of the rotating pipe is communicated with an upper punching hole penetrating through the driven shaft, and a taper hole is formed in the center of the flushing pipe. According to the screening mechanism, impurities in sewage can be automatically screened and removed, operators are prevented from making direct contact with stains and manually removing the stains, and the sewage filtering treatment efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage preliminary screening mechanism. Background Art

[0002] Sewage treatment in environmental protection is an important means of environmental protection. In sewage treatment, it is generally necessary to filter the sewage with a screen in the early stage to quickly remove the impurity particles in the sewage and avoid the subsequent sewage treatment caused by blockage and accumulation of particulate impurities contained in the sewage, making it difficult to remove harmful components. Conventional sewage screening treatment generally uses screen plates for isolation and filtration, but the screen plates often become clogged after long-term isolation and filtration. It is necessary to stop the transportation of sewage before removing impurities on the surface of the screen plates. Not only is it easy to delay sewage treatment, but the operator manually clearing the impurities and dirt after screen isolation is also likely to affect personal health and safety, which is not conducive to the sustainable treatment of sewage. Utility Model Content

[0003] The utility model mainly solves the technical problems existing in the prior art, thereby providing a sewage preliminary screening mechanism which is convenient for removing sewage impurities, convenient for long-term continuous sewage treatment, and effectively improves sewage treatment efficiency.

[0004] The utility model is a preliminary screening mechanism for sewage, comprising a support frame, a vertical plate and a screening mechanism, the screening mechanism comprising a power shaft movably connected to the bottom of the support frame, a driven shaft movably connected to the top of the vertical plate, and a screening belt sleeved on the outside of the driving shaft and the driven shaft, the outer surface of the screening belt is connected to a dirt screening rake, and the surfaces of the screening belt and the dirt screening rake are connected with sieve holes, a stamping pipe, a flushing pipe and an inner flushing pipe are sequentially arranged above one side of the vertical plate from top to bottom, a drainage trough and a sewage guide plate are arranged on the other side of the vertical plate, a down-pressure pipe connected to the stamping pipe is arranged above the driven shaft, the lower surface of the down-pressure pipe is connected with a flushing hole, the inside of the driven shaft is movably connected with a rotating pipe connected to the inner flushing pipe, the upper surface of the rotating pipe is connected with an upper punching hole that runs through the driven shaft, and a tapered hole is arranged in the center of the flushing pipe.

[0005] Preferably, a core hole is provided in the center of the driven shaft, and a through hole connected to the core hole is provided on the outer surface of the driven shaft. The rotating tube is movably connected to the inside of the core hole, and an upper punching hole connected to the core hole is provided on the upper surface of the rotating tube, so that the rotating tube can be embedded in the inside of the driven shaft through the core hole, and the liquid entering through the inner punching tube can enter the rotating tube and be ejected through the upper punching hole, and then the driven shaft is sprayed out through the core hole and the through hole to flush the screening belt outside the driven shaft, thereby reducing the possibility of impurities adhering to the screening belt.

[0006] Preferably, a clamping plate is detachably connected to the top of the vertical plate, and the flushing pipe and the stamping pipe are detachably connected in the center of the clamping plate. The flushing pipe is located below the stamping pipe, and the conical hole in the center of the flushing pipe is located above the screening belt. The inner diameter of the conical hole close to the dirt-isolating rake is smaller than the inner diameter of the side away from the dirt-isolating rake, so that the flushing pipe and the stamping pipe can be installed above one side of the vertical plate through the clamping plate, and the impurities are flushed by the high-pressure liquid of the flushing pipe, and the impurities are limited by the liquid of the stamping pipe, so that the impurities can be pushed into the sewage guide plate, and the side of the conical hole close to the screening belt has a small inner diameter. The Bernoulli principle allows the liquid entering the conical hole at a normal flow rate to be ejected at high speed and low pressure, which is convenient for flushing impurities.

[0007] Preferably, the down-pressure pipe is located directly above the driven shaft and connected to the vertical plate. The side of the down-pressure pipe is connected to the stamping pipe. A flushing hole is provided below the down-pressure pipe, and the side of the down-pressure pipe close to the drain groove is away from the driven shaft, so that the liquid entering the stamping pipe can be diverted through the down-pressure pipe and sprayed out through the flushing hole, so that the liquid sprayed through the flushing hole can limit the impurities flushed by the flushing pipe, so that the impurities can be pushed into the sewage guide plate. At the same time, the inclined down-pressure pipe is set so that the pressure of the flushing hole near the end of the flushing pipe is also large, which is convenient for stably limiting the impurities.

[0008] Preferably, a drainage trough is provided on the side of the vertical plate away from the clamping plate, a shielding plate is connected to the center of the drainage trough, the sewage guide plate is connected to the center of the drainage trough and is located below the shielding plate, and one end of the sewage guide plate is located below the sewage rake, so that the solid impurities or stains flushed by the flushing pipe can enter the sewage guide plate in the drainage trough, and the shielding plate can block the liquid sprayed by the flushing pipe, so that the liquid containing impurities can fall accurately into the sewage guide plate.

[0009] Preferably, a guide frame connected to the support frame is provided inside the screening belt, and overflow holes are connected on the front and rear surfaces of the guide frame. A bottom plate is connected to the side of the guide frame near the power shaft in the center, and baffles connected to the guide frame are provided on both sides of the bottom plate, so that the guide frame can support the screening belt, so that a large amount of sewage can be filtered through the screening belt, and the sewage filtered by the screening belt can flow into the guide frame, and the bottom plate inside the guide frame guides the sewage to the next process, and the height of the horizontal plane before the sewage is filtered is above the bottom plate, and the baffle can limit and guide the sewage in the guide frame, and the overflow hole facilitates the sewage to flow into the next process.

[0010] Preferably, an angle is set between the bottom plate and the surface of the screening belt, and the angle range is between 40 degrees and 55 degrees, while the angle between the screening belt and the horizontal plane before sewage filtration is less than 40 degrees, so that the sewage can flow out of the guide frame through the bottom plate after filtration, and the sewage can be continuously filtered through the screening belt.

[0011] Preferably, the outer side of the baffle is connected with a connecting rib, and the two ends of the connecting rib are respectively connected to the support frame and the vertical plate, so as to increase the firmness and stability of the connection between the support frame and the vertical plate through the connecting rib, and the baffle and the guide frame can be connected and installed through the connecting rib.

[0012] Preferably, the outer side of the support frame is connected to a driving mechanism for driving the power shaft to rotate, and the dirt rake is a V-shaped, U-shaped or L-shaped structure, so that the power shaft can be driven to rotate by the driving mechanism. The driving mechanism can be a reduction motor, and the setting of the dirt rake facilitates the isolation and transportation of impurities in the sewage, so that the impurities can be transported to the top of the driven shaft by the dirt rake and then punched into the sewage guide plate through the flushing pipe.

[0013] The beneficial effects of the present invention are as follows: since the outer sides of the driving shaft and the driven shaft are sleeved with a screening belt, the surface of the screening belt is connected to a dirt-isolating rake, and the screening belt and the surface of the dirt-isolating rake are evenly connected with screen holes, impurities in the sewage can be filtered through the screening belt and the dirt-isolating rake, and at the same time, due to the inclined setting of the screening belt, impurities can fall into the dirt-isolating rake and be transported to the top of the driven shaft, so as to remove and filter the impurity particles in the sewage, and at the same time, the rotation of the power shaft and the driven shaft drives the screening belt to rotate accordingly, so as to filter the sewage uninterruptedly, effectively improving the effect of sewage filtration and treatment; and the setting of the inner flushing pipe makes it easy for impurities to float out of the screen holes, avoiding the situation where they are embedded in the screen holes and cause blockage, and the flushing pipe The impurities that have escaped from the sieve holes but are still in the dirt screening rake can be punched and pushed into the sewage guide plate, so that the screening belt and the dirt screening rake can filter the sewage through the sieve holes again, avoiding the situation where conventional sewage filtration uses a grid and may cause blockage, and there is no need to deal with the problem of water outage or manual removal of impurities by operators due to blockage, which is convenient for long-term continuous filtration and treatment of impurities in the sewage, and effectively improves the effect of continuous sewage treatment. The setting of the punching pipe can limit and press down the sewage flushed by the flushing pipe, so that the sewage and its impurities can be confined in the dirt screening rake, and the sewage and impurities can be accurately pushed into the sewage guide plate for discharge, which is convenient for removing impurities in the sewage, and effectively improves the efficiency of sewage treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the overall structure of a sewage preliminary screening mechanism of the present utility model;

[0016] Figure 2 This is the overall structural diagram of another direction of a sewage preliminary screening mechanism of the utility model;

[0017] Figure 3 This is a structural diagram of a screening mechanism in a sewage preliminary screening mechanism of the present utility model;

[0018] Figure 4 This is a structural cross-sectional view of a sewage guide plate and a clamping plate in a sewage preliminary screening mechanism of the utility model. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0020] like Figures 1 to 4 The sewage preliminary screening mechanism shown in the figure includes a support frame 1, a vertical plate 11 and a screening mechanism (not marked), the screening mechanism includes a power shaft 21 movably connected to the bottom of the support frame 1, and a driven shaft 22 movably connected to the top of the vertical plate 11, and a screening belt 5 sleeved on the outside of the driving shaft 21 and the driven shaft 22, the outer surface of the screening belt 5 is connected to a dirt separation rake 51, and the surfaces of the screening belt 5 and the dirt separation rake 51 are connected to sieve holes 52, and the upper side of the vertical plate 11 is provided with a punching hole 52 in sequence from top to bottom. A pressure pipe 41, a flushing pipe 42 and an inner flushing pipe 43, a drainage groove 111 and a sewage guide plate 112 are provided on the other side of the vertical plate 11, and a lower pressure pipe 411 connected to the punching pipe 41 is provided above the driven shaft 22, and the lower surface of the lower pressure pipe 411 is connected to the flushing hole 412, and the driven shaft 22 is movably connected inside with a rotating pipe 431 connected to the inner flushing pipe 43, and the upper surface of the rotating pipe 431 is connected to the upper punching hole 432 that passes through the driven shaft 22, and a tapered hole 421 is provided in the center of the flushing pipe 42.

[0021] A core hole 221 is provided in the center of the driven shaft 22, and a through hole 222 connected to the core hole 221 is provided on the outer surface of the driven shaft 22. The rotating tube 431 is movably connected to the inside of the core hole 221, and an upper punching hole 432 connected to the core hole 221 is provided on the upper surface of the rotating tube 431, so that the rotating tube 431 can be embedded into the inside of the driven shaft 22 through the core hole 221, and the liquid entering through the inner punching tube 43 can enter the rotating tube 431 and be ejected through the upper punching hole 432, and then be ejected out of the driven shaft 22 through the core hole 221 and the through hole 222 to flush the screening belt 5 located outside the driven shaft 22, thereby reducing the possibility of impurities adhering to the screening belt 5.

[0022] The upper part of the vertical plate 11 is detachably connected with a clamping plate 4, and the flushing pipe 42 and the punching pipe 41 are detachably connected in the center of the clamping plate 4. The flushing pipe 42 is located below the punching pipe 41, and the conical hole 421 in the center of the flushing pipe 42 is located above the screening belt 5. The inner diameter of the conical hole 421 close to the dirt-isolating rake 51 is smaller than the inner diameter of the side away from the dirt-isolating rake 51, so that the flushing pipe 42 and the punching pipe 41 can be installed above one side of the vertical plate 11 through the clamping plate 4, and the impurities are flushed by the high-pressure liquid of the flushing pipe 42, and the impurities are limited by the liquid of the punching pipe 41, so that the impurities can be pushed into the sewage guide plate 112, and the side of the conical hole 421 close to the screening belt 5 has a small inner diameter. Through the Bernoulli principle, the liquid entering the conical hole 421 at a normal flow rate can be sprayed out at high speed and low pressure, which is convenient for flushing impurities.

[0023] The down-pressure pipe 411 is located directly above the driven shaft 22 and connected to the vertical plate 11. The side of the down-pressure pipe 411 is connected to the stamping pipe 41. A flushing hole 412 is provided below the down-pressure pipe 411, and the side of the down-pressure pipe 411 close to the drain groove 111 is away from the driven shaft 22, so that the liquid entering the stamping pipe 41 can be diverted through the down-pressure pipe 411 and sprayed out through the flushing hole 412, so that the liquid sprayed through the flushing hole 412 can limit the impurities flushed by the flushing pipe 42, so that the impurities can be pushed into the sewage guide plate 112. At the same time, the inclined down-pressure pipe 411 is set so that the pressure of the flushing hole 412 at the end close to the flushing pipe 42 is also large, which is convenient for stable restriction of impurities.

[0024] A drainage groove 111 is provided on the side of the vertical plate 11 away from the clamping plate 4, and a shielding piece 113 is connected to the center of the drainage groove 111. The sewage guide plate 112 is connected to the center of the drainage groove 111 and is located below the shielding piece 113. One end of the sewage guide plate 112 is located below the sewage rake 51, so that the solid impurities or stains flushed by the flushing pipe 41 can enter the sewage guide plate 112 in the drainage groove 111, and the shielding piece 113 can block the liquid sprayed by the flushing pipe 42, so that the liquid containing impurities can fall accurately into the sewage guide plate 112.

[0025] The interior of the screening belt 5 is provided with a guide frame 3 connected to the support frame 1, and the front and rear surfaces of the guide frame 3 are connected with an overflow hole 31. The center of the guide frame 3 is connected to the side close to the power shaft 21, and baffles 32 connected to the guide frame 3 are provided on both sides of the bottom plate 33, so that the guide frame 3 can support the screening belt 5, so that a large amount of sewage can be filtered through the screening belt 5, and the sewage filtered by the screening belt 5 can flow into the guide frame 3, and the bottom plate 33 inside the guide frame 3 guides the sewage to flow into the next process, and the height of the horizontal plane before the sewage is filtered is above the bottom plate 33, and the baffle 32 can limit and guide the sewage in the guide frame 3, and the overflow hole 31 facilitates the sewage to flow into the next process.

[0026] The bottom plate 33 and the surface of the screening belt 5 are set at an angle, and the angle range is between 40 degrees and 55 degrees. The angle between the screening belt 5 and the horizontal plane before sewage filtration is less than 40 degrees, so that the sewage can flow out of the guide frame 3 through the bottom plate 33 after filtration, and the sewage can be continuously filtered through the screening belt 5.

[0027] The outer side of the baffle 32 is connected to a connecting rib 12, and the two ends of the connecting rib 12 are respectively connected to the support frame 1 and the vertical plate 11, so as to increase the firmness and stability of the connection between the support frame 1 and the vertical plate 11 through the connecting rib 12, and the baffle 32 can be connected and installed with the guide frame 3 through the connecting rib 12.

[0028] The outer side of the support frame 1 is connected to a driving mechanism 2 for driving the power shaft 21 to rotate. The dirt rake 51 is a V-shaped, U-shaped or L-shaped structure, so that the power shaft 21 can be driven to rotate by the driving mechanism 2. The driving mechanism 2 can be a reduction motor, and the setting of the dirt rake 51 facilitates the isolation and transportation of impurities in the sewage, so that the impurities can be transported to the top of the driven shaft 22 by the dirt rake 51 and then punched into the sewage guide plate 112 through the flushing pipe 42.

[0029] When the sewage preliminary screening mechanism is in use, the sewage flows onto the screening belt 5 and is filtered through the sieve holes 52 provided on the surface of the screening belt 5 and connected to the dirt rake 51, so that the impurities in the sewage are restricted on the screening belt 5 and fall into the dirt rake 51. At the same time, the driving mechanism 2 drives the power shaft 21 to rotate, and then the power shaft 21 and the driven shaft 22 drive the screening belt 5 to move, so that the impurities in the dirt rake 51 are transported to the driven shaft 22, and the sewage flows into the guide frame 3 through the sieve holes 52, and the bottom plate 33 and the baffle 32 in the guide frame 3 are guided and the filtered sewage flows out through the overflow hole 31. The liquid in the inner punching pipe 43 is sprayed into the core hole 221 in the center of the driven shaft 22 through the upper punching hole 432 above the rotating tube 431, and is discharged through the outer surface of the driven shaft 22 The through hole 222 on the surface is sprayed out, so that the impurities in the dirt screening rake 51 can float up and escape from the sieve hole 52 due to the liquid sprayed from the driven shaft 22; and the liquid in the flushing pipe 42 pushes the impurities in the dirt screening rake 51 to the sewage guide plate 112 for discharge through the tapered hole 421, so that the active shaft 21 can transport the flushed dirt screening rake 51 through the screening belt 5 for sewage filtration again; the liquid entering the punching pipe 41 enters the down-pressure pipe 411 and is discharged through the flushing hole 412, so that the liquid sprayed from the flushing hole 412 limits the liquid pushed by the flushing pipe 42, so that the sewage can stably enter the sewage guide plate 112 for discharge; the liquid sprayed in the punching pipe 41, the flushing pipe 42 and the inner flushing pipe 43 can be filtered sewage and supplied by a water pump (not marked).

[0030] The beneficial effects of the present invention are as follows: since the outer sides of the driving shaft and the driven shaft are sleeved with a screening belt, the surface of the screening belt is connected to a dirt-isolating rake, and the screening belt and the surface of the dirt-isolating rake are evenly connected with screen holes, impurities in the sewage can be filtered through the screening belt and the dirt-isolating rake, and at the same time, due to the inclined setting of the screening belt, impurities can fall into the dirt-isolating rake and be transported to the top of the driven shaft, so as to remove and filter the impurity particles in the sewage, and at the same time, the rotation of the power shaft and the driven shaft drives the screening belt to rotate accordingly, so as to filter the sewage uninterruptedly, effectively improving the effect of sewage filtration and treatment; and the setting of the inner flushing pipe makes it easy for impurities to float out of the screen holes, avoiding the situation where they are embedded in the screen holes and cause blockage, and the flushing pipe The impurities that have escaped from the sieve holes but are still in the dirt screening rake can be punched and pushed into the sewage guide plate, so that the screening belt and the dirt screening rake can filter the sewage through the sieve holes again, avoiding the situation where conventional sewage filtration uses a grid and may cause blockage, and there is no need to deal with the problem of water outage or manual removal of impurities by operators due to blockage, which is convenient for long-term continuous filtration and treatment of impurities in the sewage, and effectively improves the effect of continuous sewage treatment. The setting of the punching pipe can limit and press down the sewage flushed by the flushing pipe, so that the sewage and its impurities can be confined in the dirt screening rake, and the sewage and impurities can be accurately pushed into the sewage guide plate for discharge, which is convenient for removing impurities in the sewage, and effectively improves the efficiency of sewage treatment.

[0031] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that do not require creative effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined in the claims.

Claims

1. A sewage preliminary screening mechanism, characterized by: The cam is connected to the driving shaft by a movably connected means and the cam is connected to the driving shaft by a movably connected means. The cam is connected to the driving shaft by a movably connected means and the cam is connected to the driving shaft by a movably connected means. The cam is connected to the driving shaft by a movably connected means and the cam is connected to the driving shaft by a movably connected means. The cam is connected to the driving shaft by a movably connected means and the cam is connected to the driving shaft by a movably connected means. The cam is connected to the driving shaft by a movably connected means and the cam is connected to the driving shaft by a movably connected means. The cam is connected to the driving shaft by a movably connected means and the cam is connected to the driving shaft by a movably connected means. The cam is connected to the driving shaft by a movably connected means.

2. A sewage preliminary screening mechanism according to claim 1, characterized in that: The driven shaft is provided with a core hole in the center, and a through hole communicating with the core hole is provided on the outer surface of the driven shaft; the rotating tube is movably connected inside the core hole, and an upper punching hole communicating with the core hole is provided on the upper surface of the rotating tube.

3. A sewage preliminary screening mechanism according to claim 1, characterized in that: A clamping plate is detachably connected to the top of the vertical plate, and the flushing pipe and the stamping pipe are detachably connected in the center of the clamping plate. The flushing pipe is located below the stamping pipe, and the conical hole in the center of the flushing pipe is located above the screening belt. The inner diameter of the conical hole close to the dirt screening rake is smaller than the inner diameter of the side away from the dirt screening rake.

4. A sewage preliminary screening mechanism according to claim 3, characterized in that: The down-pressure pipe is located directly above the driven shaft and connected to the vertical plate. The side of the down-pressure pipe is connected to the punching pipe. A flushing hole is provided below the down-pressure pipe, and the side of the down-pressure pipe close to the drainage groove is away from the driven shaft.

5. A sewage preliminary screening mechanism according to claim 3, characterized in that: A drainage groove is provided on one side of the vertical plate away from the clamping plate, a shielding piece is connected to the center of the drainage groove, the sewage guide plate is connected to the center of the drainage groove and is located below the shielding piece, and one end of the sewage guide plate is located below the sewage rake.

6. A sewage preliminary screening mechanism according to claim 1, characterized in that: A guide frame connected to the support frame is provided inside the screening belt, and overflow holes are connected on the front and rear surfaces of the guide frame. A bottom plate is connected to the side of the center of the guide frame close to the power shaft, and baffles connected to the guide frame are provided on both sides of the bottom plate.

7. A sewage preliminary screening mechanism according to claim 6, characterized in that: An included angle is set between the bottom plate and the surface of the screening belt, and the included angle ranges from 40 degrees to 55 degrees.

8. A sewage preliminary screening mechanism according to claim 6, characterized in that: The outer side of the baffle is connected with a connecting rib, and the two ends of the connecting rib are respectively connected to the supporting frame and the vertical plate.

9. A sewage preliminary screening mechanism according to any one of claims 1 to 8, characterized in that: The outer side of the support frame is connected with a driving mechanism for driving the power shaft to rotate, and the dirt separating rake is a V-shaped, U-shaped or L-shaped structure.

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