Squeezing shaft backwashing structure of stacked screw press

Abstract

The utility model discloses a squeezing shaft backwashing structure of a stacked screw squeezer, and relates to the technical field of stacked screw squeezers. The squeezing shaft backwashing structure of the stacked screw squeezer comprises a stacked screw squeezer body, a guide pipe is connected to a water outlet of a flow guide groove in the lower end of the stacked screw squeezer body, the tail end of the guide pipe extends to the right side, a sedimentation tank is connected to the tail end of the guide pipe, and a water pump is connected to the lower end of the interior of the sedimentation tank. The left side and the right side of an opening in the upper end of the stacked screw press body are connected with cylindrical spray head supports, the outer sides of the spray head supports are sleeved with spray head connectors in an array shape, the upper ends of the spray head connectors are connected through bolts, and the lower ends of the spray head connectors are connected with spray heads. A gooseneck pipe is arranged between every two front and back adjacent spray heads, the water pump is connected with a water inlet of the spray head on the left side through a rubber pipe, and the rear end of the right surface of the stacked screw press body is connected with a controller.

Description

Technical Field

[0001] The utility model relates to the technical field of screw stacking machines, in particular to a backwashing structure of a pressing shaft of a screw stacking press. Background Art

[0002] The screw press, also known as the screw press, is a sewage treatment equipment. It is composed of two spirals with the same diameter and gradually decreasing pitch stacked together, and its appearance is like a spiral. The spiral blades are welded on the outer diameter of the spiral, and the overall structure is elliptical. The equipment inputs mixed sewage from the conveying end. As the spiral rotates, the sewage will form a thin layer on the surface of the spiral. As the progressive pitch decreases, this layer of sewage will be decompressed and squeezed out, and the pollutants in the water will be thrown into the sludge barrel and finally processed by other equipment. It is usually used for sewage treatment in the industrial field, such as paper mills, printing and dyeing factories, etc. When the pressing shaft of the existing screw press dehydrates the sludge, the sludge is easy to stick to the pressing shaft, the gap between the screw plate and the movable plate is reduced, and even sticks together, resulting in the inability to discharge the sewage, and finally discharged with the sludge, or even stuck on the shaft, thereby affecting the subsequent sludge dewatering effect. Therefore, a backwashing structure of the pressing shaft of the screw press is designed to solve the above problems. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the utility model provides a backwashing structure for a pressing shaft of a screw press, which solves the problem that sludge from the prior screw press easily sticks to the pressing shaft, thus affecting the subsequent sludge dewatering effect.

[0005] (II) Technical solution

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The utility model provides a backwashing structure for a pressing shaft of a screw press, comprising: a screw press body, a conduit connected to a water outlet of a guide groove at the lower end of the screw press body, the end of the conduit extending to the right, the end of the conduit connected to a sedimentation tank, the lower end of the sedimentation tank connected to a water pump, the other end of the sedimentation tank connected to a water outlet, cylindrical nozzle brackets are connected to the left and right sides of an opening at the upper end of the screw press body, nozzle connectors are arranged in an array on the outer side of the nozzle brackets, the upper end of the nozzle connectors is connected by bolts, the lower end of the nozzle connectors is connected to a nozzle, a gooseneck is arranged between two adjacent nozzles, the gooseneck is threadedly connected to the nozzle by a sealing pipe, the water pump is connected to the water inlet of the left nozzle by a hose, a controller is connected to the rear end of the right surface of the screw press body, and the controller is electrically connected to the water pump and the control system of the screw press.

[0008] Preferably, a filter is connected to the lower end of the conduit and located inside the sedimentation tank, and the filter and the conduit are connected via threads.

[0009] Preferably, a water level sensor is connected to the lower end of the sedimentation tank, and the trigger height of the water level sensor is higher than the height of the water inlet position of the water pump.

[0010] Preferably, the nozzle includes a main body which is hollow inside and connected to the lower end on the left and right sides, the lower end of the main body is internally connected to a water valve, the lower end of the main body is provided with an adjusting plug, the middle of the adjusting plug is connected to a conical plug, and the inside of the adjusting plug is connected to the lower end of the main body by a thread.

[0011] Preferably, the height of the end of the conduit is the same as the height of the water outlet.

[0012] Preferably, an air pump is connected to the right surface of the screw press body and located at the lower end of the controller, the air pump is connected to the nozzle through a hose, and a one-way valve is connected to the connection between the air pump, the water pump and the hose.

[0013] Preferably, the nozzle connector is made of soft plastic material, and a rubber anti-slip pad is connected to the inner side of the nozzle connector.

[0014] (III) Beneficial effects

[0015] The utility model provides a backwashing structure for a pressing shaft of a stacked screw press, which has at least the following beneficial effects compared with the prior art:

[0016] 1. The backwashing structure of the pressing shaft of the screw press can set the interval and spraying time of the interval spraying through the controller, and the pressing shaft will be automatically flushed after a certain time.

[0017] 2. The backwash structure of the pressing shaft of the screw press can adjust the position and angle of the nozzle, and can focus on flushing the front end where dehydration, extrusion, and blockage are likely to occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is the lower right view of the utility model;

[0020] Figure 3 It is a longitudinal sectional view of the utility model;

[0021] Figure 4 It is a transverse cross-sectional view of the utility model;

[0022] Figure 5This is a partial enlarged view of the nozzle connector of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the nozzle of the utility model;

[0024] Figure 7 This is a schematic diagram of the internal structure of the nozzle of the utility model.

[0025] In the figure: 1. main body of the screw press; 2. conduit; 3. sedimentation tank; 4. water pump; 5. water outlet; 6. nozzle bracket; 7. nozzle connector; 8. nozzle; 9. gooseneck; 10. controller; 21. filter; 22. water level sensor; 23. air pump; 81. main body; 82. water valve; 83. adjusting plug. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-7 The utility model provides a technical solution: a backwashing structure for a pressing shaft of a stacked screw press, comprising: a stacked screw press body 1, a conduit 2 is connected to the water outlet of the guide groove at the lower end of the stacked screw press body 1, the end of the conduit 2 extends to the right, the end of the conduit 2 is connected to a sedimentation tank 3, the lower end of the sedimentation tank 3 is connected to a water pump 4, the other end of the sedimentation tank 3 is connected to a water outlet 5, the left and right sides of the upper end opening of the stacked screw press body 1 are connected to a cylindrical nozzle bracket 6, the nozzle bracket 6 is provided with a nozzle connector 7 in an array shape on the outside, the upper end of the nozzle connector 7 is connected by bolts, the lower end of the nozzle connector 7 is connected with a nozzle 8, a gooseneck tube 9 is provided between the front and rear two adjacent nozzles 8, the gooseneck tube 9 and the nozzle 8 are threadedly connected by a sealing pipe, the water pump 4 is connected to the water inlet of the left nozzle 8 through a hose, the rear end of the right surface of the screw press body 1 is connected to a controller 10, and the controller 10 is electrically connected to the water pump 4 and the control system of the screw press.

[0028] When in use, adjust the position of the nozzle connector 7 to the required position on the nozzle bracket 6, connect the water pump 4 to the nozzle 8 on the left side through a hose, and connect the front and rear nozzles 8 through a gooseneck tube 9. Adjust the required spraying interval and spraying time inside the controller 10. When starting the screw press, the controller 10 will start the water pump 4 to conduct the water inside the sedimentation tank 3 to the inside of the nozzle 8, and then spray it out. When the spraying time reaches the set spraying time, the controller 10 will give the water pump 4 an electrical signal to stop the water supply of the water pump 4. When the stop interval ends, the water pump 4 will be restarted, and this will go back and forth. When in use, the bolts on the upper end of the nozzle bracket 6 can be loosened to adjust the nozzle bracket 6 to a position that is easy to be blocked. At the same time, the spraying angle can be adjusted to make the flushing position more reasonable.

[0029] like Figure 1-4 As shown, the embodiment of the utility model provides an implementation method. Based on the above implementation method, a filter 21 is connected to the lower end of the conduit 2 and located inside the sedimentation tank 3. The filter 21 is connected to the conduit 2 through a threaded connection.

[0030] From the analysis of the above structure, it can be seen that there are still certain impurities in the water squeezed out by the screw press. After these impurities flow to the end of the conduit 2, they will be filtered by the filter 21 and then enter the sedimentation tank 3 to ensure the cleanliness of the water inside the sedimentation tank 3. When cleaning is needed, just unscrew the filter 21.

[0031] like Figure 1-4 As shown, an embodiment of the utility model provides an implementation method. Based on the above implementation method, a water level sensor 22 is connected to the lower end of the sedimentation tank 3, and the trigger height of the water level sensor 22 is higher than the height of the water inlet position of the water pump 4.

[0032] From the analysis of the above structure, it can be known that when the water level drops to the trigger height of the water level sensor 22, the operation of the water pump 4 will be stopped to prevent the water pump 4 from idling.

[0033] like Figure 1-7 As shown, an embodiment of the utility model provides an implementation method. Based on the above implementation method, the nozzle 8 includes a main body 81 which is hollow inside and connected to the lower end on the left and right sides. A water valve 82 is connected to the lower end of the main body 81. An adjusting plug 83 is provided at the lower end of the main body 81. A conical plug is connected in the middle of the adjusting plug 83. The inside of the adjusting plug 83 is connected to the lower end of the main body 81 by a thread.

[0034] From the analysis of the above structure, it can be known that when the water output needs to be adjusted, the water valve 82 is rotated to increase the cross-section of the pipeline. When the pressure during spraying needs to be adjusted, the plug 83 is adjusted so that the plug in the middle of the adjusting plug 83 is adjusted at the position of the water outlet inside the main body 81, so that the cross-sectional area of ​​the water outlet position changes, thereby changing the pressure during water output.

[0035] like Figure 1-4 As shown, the embodiment of the utility model provides an implementation method. Based on the above implementation method, the height of the end of the conduit 2 is the same as the height of the water outlet 5.

[0036] From the analysis of the above structure, it can be seen that when the water inside the sedimentation tank 3 reaches the height of the end of the conduit 2, the excess water will flow out through the water outlet 5 and enter the next treatment process.

[0037] like Figure 1-4 As shown, an embodiment of the utility model provides an implementation method. Based on the above implementation method, an air pump 23 is connected to the right surface of the screw press body 1 and located at the lower end of the controller 10. The air pump 23 is connected to the nozzle 8 through a hose, and the connection between the air pump 23 and the water pump 4 and the hose is connected with a one-way valve.

[0038] From the analysis of the above structure, it can be known that by starting the water pump 4 and the air pump 23, the water pump 4 can draw water into the interior of the nozzle 8 and spray it out, and the air pump 23 will input gas into the hose to increase the pressure inside the hose, so that the pressure sprayed by the nozzle 8 is increased, and the gap between the stacked spiral plate and the movable plate is better cleaned, and the one-way valve can prevent water or gas from flowing back.

[0039] like Figure 1-5 As shown, the embodiment of the utility model provides an implementation method. Based on the above implementation method, the nozzle connector 7 is made of soft plastic material, and a rubber anti-slip pad is connected to the inner side of the nozzle connector 7.

[0040] From the analysis of the above structure, it can be seen that the nozzle connector 7 is made of soft plastic material, which can make the nozzle connector 7 better fit the outside of the nozzle bracket 6, and the rubber anti-skid pad on the inside of the nozzle connector 7 can play an anti-skid role to prevent the nozzle 8 from shifting during operation.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The backwashing structure of the pressing shaft of the screw press is characterized by: include: A screw press body (1), wherein a conduit (2) is connected to the water outlet of the guide groove at the lower end of the screw press body (1), the end of the conduit (2) extends to the right, the end of the conduit (2) is connected to a sedimentation tank (3), the lower end of the sedimentation tank (3) is connected to a water pump (4), the other end of the sedimentation tank (3) is connected to a water outlet (5), and cylindrical nozzle brackets (6) are connected to the left and right sides of the upper end opening of the screw press body (1), and nozzle connectors (7) are arranged in an array on the outer side of the nozzle bracket (6) The upper end of the nozzle connector (7) is connected by bolts, the lower end of the nozzle connector (7) is connected to a nozzle (8), a gooseneck tube (9) is provided between the front and rear adjacent nozzles (8), the gooseneck tube (9) and the nozzle (8) are threadedly connected by a sealing pipe, the water pump (4) and the water inlet of the left nozzle (8) are connected by a hose, the rear end of the right surface of the screw press body (1) is connected to a controller (10), and the controller (10) is electrically connected to the water pump (4) and the control system of the screw press.

2. The backwashing structure for the pressing shaft of the stacked screw press according to claim 1, characterized in that: A filter (21) is connected to the lower end of the conduit (2) and is located inside the sedimentation tank (3). The filter (21) and the conduit (2) are connected via threads.

3. The backwashing structure for the pressing shaft of the stacked screw press according to claim 1, characterized in that: A water level sensor (22) is connected to the lower end of the sedimentation tank (3), and the trigger height of the water level sensor (22) is higher than the height of the water inlet position of the water pump (4).

4. The backwashing structure for the pressing shaft of the stacked screw press according to claim 1, characterized in that: The spray head (8) comprises a main body (81) which is hollow inside and connected to the lower end on both sides. The lower end of the main body (81) is internally connected to a water valve (82). The lower end of the main body (81) is provided with an adjusting plug (83). The middle of the adjusting plug (83) is connected to a conical plug. The inside of the adjusting plug (83) is connected to the lower end of the main body (81) by a thread.

5. The backwashing structure for the pressing shaft of the stacked screw press according to claim 1, characterized in that: The height of the end of the conduit (2) is the same as the height of the water outlet (5).

6. The backwashing structure for the pressing shaft of the stacked screw press according to claim 1, characterized in that: An air pump (23) is connected to the right surface of the screw press body (1) and located at the lower end of the controller (10). The air pump (23) is connected to the nozzle (8) via a hose, and the connection between the air pump (23) and the water pump (4) and the hose is connected to a one-way valve.

7. The backwashing structure for the pressing shaft of the stacked screw press according to claim 1, characterized in that: The nozzle connector (7) is made of soft plastic material, and a rubber anti-slip pad is connected to the inner side of the nozzle connector (7).

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