Circulating dredging type industrial wastewater treatment device

Abstract

The invention discloses a circulating dredging type industrial wastewater treatment device, and relates to the technical field of industrial wastewater pretreatment, the circulating dredging type industrial wastewater treatment device comprises a hydraulic transmission assembly, the hydraulic transmission assembly comprises a machine shell, a main shaft, a chain wheel, a chain, a screen grid, a belt and a transmission gear set, chain wheels are coaxially connected to the two ends of the middle of the main shaft, and chains are meshed with the exteriors of the chain wheels. In the using process, the spiral water outlet and the turbine blade are arranged at the rear end of the pretreatment tank, the turbine blade can be driven to rotate only by means of hydraulic power, and then the main shaft is driven to continuously rotate through transmission of the transmission rod connected with the turbine blade; furthermore, the main shaft drives the meshed chains to rotate through the chain wheels coaxially connected with the two ends of the middle part, so that the screen plate grating hinged between the chains on the two sides circularly reciprocates, and the continuous filtering effect of the filtering surface of the screen plate grating is kept by circularly adjusting the filtering surface of the screen plate grating.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial wastewater pretreatment, and particularly to a circulating dredging type industrial wastewater treatment device. Background Art

[0002] Industrial wastewater pretreatment is an important link in the wastewater treatment process. The main purpose is to remove large particle impurities, suspended solids, grease, etc. in the wastewater, and at the same time adjust the pH value and temperature of the wastewater to improve the biodegradability of the wastewater and create good conditions for subsequent treatment. Among them, grid filtration is the primary step of pretreatment, which removes large particle impurities in the wastewater, such as branches, plastic bags, etc., to prevent them from entering subsequent treatment equipment and causing blockage or damage.

[0003] At present, although the traditional grid filtration device can achieve a good initial filtration effect, after long-term filtration use, foreign objects and particles are easy to block the filtration device, thereby affecting the flow of wastewater, causing equipment damage or inability to normally treat wastewater. Summary of the Invention

[0004] The purpose of the present invention is to provide a circulating dredging type industrial wastewater treatment device to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A circulating dredging type industrial wastewater treatment device includes a hydraulic transmission component. The hydraulic transmission component includes a casing, a main shaft, sprockets, a chain, a mesh plate grid, a belt, and a transmission gear set. The main shaft is rotatably installed inside the concave opening of the casing, and sprockets are coaxially connected to both ends of the middle part of the main shaft. The sprockets are externally engaged with the chain, and the mesh plate grid is hinged between the opposite chains. One end of the main shaft is sleeved with a belt, and the other end of the main shaft is connected to the transmission gear set.

[0006] Further, the casing is welded and fixed at both ends of the opening of the pretreatment tank, and an inlet throat is provided in the middle of the pretreatment tank. A water blocking baffle is fixedly installed on one inner wall of the pretreatment tank, and a gap is left between the end face of the water blocking baffle and the other inner wall of the pretreatment tank.

[0007] Further, a spiral water outlet is provided at the rear end of the pretreatment tank, and the water flow passing through the gap between the water blocking baffle and the inner wall of the pretreatment tank enters the spiral water outlet along the tangential direction.

[0008] Further, a turbine blade is rotatably installed inside the spiral water outlet, and the transmission rod connected to the turbine blade is rotatably installed in the middle of the cross beam. And the transmission rod connected to the turbine blade is rotationally and transmissionally connected to the main shaft through the transmission gear set.

[0009] Furthermore, a linkage cleaning assembly is provided at the upper end inside the wire mesh grille. The linkage cleaning assembly includes a secondary shaft, a driven wheel, and a driving wheel. The secondary shaft is arranged parallel to the axis of the main shaft, and a driven wheel is coaxially connected to the end of the secondary shaft. A driving wheel is meshingly installed on the top of the driven wheel, and the driving wheel is coaxially connected to the main shaft.

[0010] Furthermore, the linkage cleaning assembly further includes a brush roller. The brush roller is sleeved outside the secondary shaft, and the circumferential bristles of the brush roller are in contact with the inner filtering surface of the wire mesh grille.

[0011] Furthermore, the linkage cleaning assembly further includes a slag collecting trough and a splash guard. The slag collecting trough is obliquely arranged at the bottom of the secondary shaft, and a splash guard is fixedly connected to a part of the side wall of the slag collecting trough located inside the wire mesh grille.

[0012] Furthermore, a high-pressure flushing assembly is provided at the outer side end of the wire mesh grille. The high-pressure flushing assembly includes a base, a guide rail, and a bearing seat. The base is welded and fixed to the side end of the pretreatment tank, and a guide rail is fixedly installed at the middle end of the top of the base. And bearing seats are symmetrically fixed at both ends of the top of the base.

[0013] Furthermore, the high-pressure flushing assembly further includes a reciprocating lead screw, a belt pulley, a slider, and a guide pin. The reciprocating lead screw is rotatably installed inside the bearing seat, and two thread grooves with the same pitch and opposite helix directions are provided on the circumference of the reciprocating lead screw. A belt pulley is coaxially connected to the end of the reciprocating lead screw, and the belt pulley is rotationally driven by a belt to be connected to the main shaft. The thread grooves provided on the reciprocating lead screw push the slider placed therein to perform an axial reciprocating motion, and the slider is in limit sliding fit with the guide rail through the guide pin extending from the bottom.

[0014] Furthermore, the high-pressure flushing assembly further includes a bracket, a high-pressure spray head, a corrugated hose, a water pump, and a hard water inlet pipe. Brackets are symmetrically fixed at both ends of the top of the slider, and a high-pressure spray head is bolted inside the bracket. And the high-pressure spray head faces the supporting surface outside the wire mesh grille through the through hole on the side surface of the machine shell. A corrugated hose is connected to the tail of the high-pressure spray head, and the corrugated hose is connected to the output end of the water pump. And the input end of the water pump is communicated with the rear end of the pretreatment tank through the hard water inlet pipe. Beneficial Effects

[0015] 1. With the aid of the spiral water outlet and the turbine blades at the rear end of the pretreatment tank, the present invention utilizes the water power to drive the turbine blades to rotate, and through the transmission of the transmission rod, the main shaft continuously rotates. The main shaft drives the chain through the sprocket, realizing the cyclic movement of the wire mesh grille hinged between the two chains, and keeping the filtering surface continuously filtering.

[0016] 2. In the linkage cleaning component of the present invention, the synchronous reverse rotation of the secondary shaft and the axial reciprocating drive of the slider by the reciprocating lead screw in the high-pressure flushing component are both powered by the main shaft, and the main shaft rotates by hydraulic power. Without an external power source other than the water pump, when the wire mesh grille reciprocates, the inner filter surface can be scrubbed by the brush roller, and the high-pressure nozzle flushes from the outside to the inside, so that the filter residue and the flushing water fall into the slag collection tank and are discharged by gravity. The filter surface is continuously dredged through physical scraping and water flow scouring to ensure the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the device of the present invention; Figure 2 is a schematic cross-sectional structure diagram of the device of the present invention; Figure 3 is a schematic diagram of the flow channel direction of the pretreatment tank of the present invention; Figure 4 is a schematic diagram of the structure of the hydraulic transmission component of the present invention; Figure 5 is a schematic diagram of the structure of the linkage cleaning component of the present invention; Figure 6 is a schematic diagram of the overall structure of the high-pressure flushing component of the present invention; Figure 7 is an exploded structure diagram of the high-pressure flushing component of the present invention.

[0018] In the figure: 1. Hydraulic transmission component; 101. Housing; 102. Main shaft; 103. Sprocket; 104. Chain; 105. Wire mesh grille; 106. Belt; 107. Transmission gear set; 2. Pretreatment tank; 3. Water inlet throat; 4. Water blocking baffle; 5. Spiral water outlet; 6. Turbine blade; 7. Cross beam; 8. Linkage cleaning component; 801. Secondary shaft; 802. Driven wheel; 803. Driving wheel; 804. Brush roller; 805. Slag collection tank; 806. Splash guard; 9. High-pressure flushing component; 901. Base; 902. Guide rail; 903. Bearing seat; 904. Reciprocating lead screw; 905. Belt pulley; 906. Slider; 907. Guide pin; 908. Bracket; 909. High-pressure nozzle; 910. Corrugated hose; 911. Water pump; 912. Inlet hard pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further describes in detail the embodiments of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention. Please refer to Figures 1 to 4, the industrial wastewater treatment device with a circulating dredging type provided by the present invention includes a hydraulic transmission component 1. The hydraulic transmission component 1 includes a housing 101, a main shaft 102, a sprocket 103, a chain 104, a mesh plate grille 105, a belt 106 and a transmission gear set 107. The main shaft 102 is rotatably installed inside the notch of the housing 101, and both ends of the middle part of the main shaft 102 are coaxially connected with the sprocket 103. The sprocket 103 is externally engaged with the chain 104, and the mesh plate grille 105 is hinged between the opposite chains 104. One end of the main shaft 102 is sleeved with the belt 106, and the other end of the main shaft 102 is connected with the transmission gear set 107. The housing 101 is welded and fixed at both ends of the opening of the pretreatment tank 2, and an inlet throat 3 is arranged in the middle of the pretreatment tank 2. A water blocking baffle 4 is fixedly installed on one inner wall of the pretreatment tank 2, and there is a gap between the end face of the water blocking baffle 4 and the other inner wall of the pretreatment tank 2. A spiral water outlet 5 is arranged at the rear end of the pretreatment tank 2, and the water flow passing through the gap between the water blocking baffle 4 and the inner wall of the pretreatment tank 2 enters the spiral water outlet 5 along the tangential direction. A turbine blade 6 is rotatably installed inside the spiral water outlet 5, and the transmission rod connected to the turbine blade 6 is rotatably installed in the middle of the cross beam 7. And the transmission rod connected to the turbine blade 6 is rotationally and drivably connected to the main shaft 102 through the transmission gear set 107.

[0020] During use, the pretreatment tank 2 is connected to the sewage discharge equipment of the existing factory. Industrial wastewater enters the inner cavity of the mesh plate grille 105 through the inlet throat 3, and is filtered through the filter surface inside the mesh plate grille 105 under the action of the water blocking baffle 4, and then enters the spiral water outlet 5 along the tangential direction after passing through the gap between the water blocking baffle 4 and the inner wall of the pretreatment tank 2. When the wastewater passes through the turbine blade 6 inside the spiral water outlet 5 from top to bottom, lift is generated by the impact of the water flow on the curved surface of the airfoil blade, thereby driving the turbine blade 6 to rotate. Further, the transmission rod connected to the turbine blade 6 is rotationally and drivably connected to the main shaft 102 through the transmission gear set 107, so that the main shaft 102 continuously rotates under hydraulic drive. In this application, by arranging the spiral water outlet 5 and the turbine blade 6 at the rear end of the pretreatment tank 2, the turbine blade 6 can be driven to rotate only by means of water power, and then the main shaft 102 is driven to continuously rotate through the transmission of the transmission rod connected to the turbine blade 6. Further, the main shaft 102 drives the engaged chain 104 to rotate through the sprockets 103 coaxially connected at both ends of the middle part, so that the mesh plate grille 105 hinged between the two chains 104 moves in a cycle, and the continuous filtering effect of the filter surface of the mesh plate grille 105 is maintained by cyclically adjusting the filter surface of the mesh plate grille 105.

[0021] Please refer to Figure 5 , a linkage cleaning component 8 is arranged at the upper end inside the mesh plate grille 105.

[0022] The linkage cleaning assembly 8 includes a secondary shaft 801, a driven wheel 802, and a driving wheel 803. The secondary shaft 801 is arranged parallel to the axis of the main shaft 102, and a driven wheel 802 is coaxially connected to the end of the secondary shaft 801. A driving wheel 803 is meshingly installed on the top of the driven wheel 802, and the driving wheel 803 is coaxially connected to the main shaft 102. The linkage cleaning assembly 8 further includes a brush roller 804. The brush roller 804 is sleeved outside the secondary shaft 801, and the circumferential bristles of the brush roller 804 are in contact with the inner filtering surface of the mesh plate grille 105. The linkage cleaning assembly 8 further includes a slag collection tank 805 and a splash guard 806. A slag collection tank 805 is obliquely arranged at the bottom of the secondary shaft 801, and a splash guard 806 is fixedly connected to a part of the side wall of the slag collection tank 805 located inside the mesh plate grille 105.

[0023] It can be understood that during the continuous rotation of the above-mentioned main shaft 102, the driving wheel 803 coaxially connected at the rear end drives the driven wheel 802 engaged at the bottom to rotate, and then drives the secondary shaft 801 arranged axially parallel to the bottom of the main shaft 102 to rotate synchronously and reversely. The inner filtering surface of the mesh plate grille 105 is scrubbed by the brush roller 804 sleeved outside the secondary shaft 801.

[0024] Please refer to Figures 6 to 7 , and a high-pressure flushing assembly 9 is arranged at the outer side end of the mesh plate grille 105.

[0025] In some embodiments, the above-mentioned high-pressure flushing assembly 9 includes a base 901, a guide rail 902, and a bearing block 903. The base 901 is welded and fixed to the side end of the pretreatment tank 2, and a guide rail 902 is fixedly installed in the middle of the top of the base 901, and bearing blocks 903 are symmetrically fixed at both ends of the top of the base 901. The high-pressure flushing assembly 9 further includes a reciprocating lead screw 904, a belt pulley 905, a slider 906, and a guide pin 907. The reciprocating lead screw 904 is rotatably installed inside the bearing block 903, and two thread grooves with the same pitch and opposite helix directions are arranged circumferentially on the reciprocating lead screw 904. A belt pulley 905 is coaxially connected to the end of the reciprocating lead screw 904, and the belt pulley 905 is rotationally drivenly connected to the main shaft 102 through a belt 106. The thread grooves provided on the reciprocating lead screw 904 push the slider 906 placed therein to perform an axial reciprocating motion, and the slider 906 is in a limiting sliding fit with the guide rail 902 through the guide pin 907 extending at the bottom.

[0026] In addition, the above-mentioned high-pressure flushing assembly 9 further includes a bracket 908, a high-pressure spray head 909, a corrugated hose 910, a water pump 911, and a hard inlet pipe 912. Brackets 908 are symmetrically fixed at both ends of the top of the slider 906, and a high-pressure spray head 909 is bolted inside the bracket 908, and the high-pressure spray head 909 faces the supporting surface outside the mesh plate grille 105 through the through hole on the side surface of the machine shell 101. A corrugated hose 910 is connected to the tail of the high-pressure spray head 909, and the corrugated hose 910 is connected to the output end of the water pump 911, and the input end of the water pump 911 is communicated with the rear end of the pretreatment tank 2 through the hard inlet pipe 912.

[0027] During the continuous rotation of the above-mentioned main shaft 102, it can also be rotationally driven by a pulley 905 coaxial with the end of the reciprocating lead screw 904 through a belt 106 sleeved on the front end. The thread groove provided on the surface of the reciprocating lead screw 904 pushes the slider 906 placed therein to perform an axial reciprocating motion. In this application, a high-pressure nozzle 909 is installed on the top of the slider 906 through a bracket 908. The water pump 911 pumps water from the rear end of the pretreatment tank 2 through a rigid inlet pipe 912 and supplies it to the high-pressure nozzle 909 under pressure through a corrugated hose 910. The high-pressure nozzle 909 sprays high-pressure water flow towards the support surface outside the wire mesh grille 105 through the side hole of the machine shell 101. Under the physical scraping of the brush roller 804 and the water flow scouring of the high-pressure nozzle 909, the filter residue attached to the inner filter surface of the wire mesh grille 105 is carried by the flushing water and discharged outside the device through the inclined slag collection tank 805.

[0028] That is to say, during the continuous rotation of the main shaft 102, on the one hand, the main shaft 102 drives the driven wheel 802 engaged at the bottom to rotate through the driving wheel 803 coaxial with the rear end, and then drives the secondary shaft 801 axially parallel to the bottom of the main shaft 102 to rotate synchronously in the opposite direction. The inner filter surface of the wire mesh grille 105 is scrubbed by the brush roller 804 sleeved outside the secondary shaft 801. On the other hand, the main shaft 102 is rotationally driven by a pulley 905 coaxial with the end of the reciprocating lead screw 904 through a belt 106 sleeved on the front end. The thread groove provided on the surface of the reciprocating lead screw 904 pushes the slider 906 placed therein to perform an axial reciprocating motion. In this application, a high-pressure nozzle 909 is installed on the top of the slider 906 through a bracket 908. The water pump 911 pumps water from the rear end of the pretreatment tank 2 through a rigid inlet pipe 912 and supplies it to the high-pressure nozzle 909 under pressure through a corrugated hose 910. The high-pressure nozzle 909 sprays high-pressure water flow towards the support surface outside the wire mesh grille 105 through the side hole of the machine shell 101. Under the physical scraping of the brush roller 804 and the water flow scouring of the high-pressure nozzle 909, the filter residue attached to the inner filter surface of the wire mesh grille 105 is carried by the flushing water and discharged outside the device through the inclined slag collection tank 805.

[0029] It should be noted that the power for the synchronous reverse rotation of the secondary shaft 801 in the above-mentioned linkage cleaning assembly 8 and the axial reciprocating drive of the slider 906 by the reciprocating lead screw 904 in the high-pressure flushing assembly 9 both come from the power transmission of the main shaft 102, and the rotational power of the main shaft 102 in turn comes from the water supply. Therefore, the present application does not require any external power source except for the water pump 911. While realizing the reciprocating rotational movement of the screen grille 105, not only can the inner filter surface of the screen grille 105 be scrubbed by the brush roller 804 sleeved outside the secondary shaft 801, but also the screen grille 105 can be flushed from the outside to the inside by the high-pressure nozzle 909, so that the filter residue and the flushing water fall into the slag collection tank 805 at the upper end inside the screen grille 105 and are discharged outside the device by gravity. Through the physical scraping and water flow scouring of the screen grille 105, the filter surface of the screen grille 105 is continuously dredged during the cycle, further ensuring the continuous filtering effect.

[0030] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the invention and its practical application, and to enable those of ordinary skill in the art to understand the invention and design various implementations with various modifications suitable for specific purposes.

Claims

1. A circulating dredging type industrial wastewater treatment device, comprising a hydraulic transmission component, characterized in that: The hydraulic transmission assembly includes a casing, a main shaft, a sprocket, a chain, a mesh grille, a belt and a transmission gear set. The main shaft is rotatably installed inside the casing recess, and sprockets are coaxially connected to the two ends of the middle part of the main shaft. A chain is engaged with the outside of the sprocket, and a mesh grille is hinged between the chains on opposite sides. A belt is sleeved on one end of the main shaft, and the other end of the main shaft is connected to the transmission gear set.

2. A circulating dredging type industrial wastewater treatment device according to claim 1, characterized in that: The casing is welded and fixed to both ends of the pretreatment tank opening, and a water inlet pipe is provided in the middle of the pretreatment tank. A water blocking baffle is fixedly installed on the inner wall of one side of the pretreatment tank, and a gap is left between the end face of the water blocking baffle and the inner wall of the other side of the pretreatment tank.

3. A circulating dredging type industrial wastewater treatment device according to claim 2, characterized in that: A spiral water outlet is provided at the rear end of the pretreatment tank, and water flowing through the gap between the water blocking baffle and the inner wall of the pretreatment tank enters the spiral water outlet along the tangential direction.

4. A circulating dredging type industrial wastewater treatment device according to claim 3, characterized in that: The spiral water outlet is internally rotatably mounted with turbine blades, and a transmission rod connected to the turbine blades is rotatably mounted on the middle of the crossbeam, and the transmission rod connected to the turbine blades is rotationally connected to the main shaft through a transmission gear set.

5. A circulating dredging type industrial wastewater treatment device according to claim 4, characterized in that: A linkage cleaning assembly is arranged at the upper end of the mesh grille, and the linkage cleaning assembly includes a secondary shaft, a driven wheel and a driving wheel. The secondary shaft is arranged parallel to the axis of the main shaft, and the end of the secondary shaft is coaxially connected with the driven wheel, and the driving wheel is meshed and installed on the top of the driven wheel, and the driving wheel is coaxially connected with the main shaft.

6. A circulating dredging type industrial wastewater treatment device according to claim 5, characterized in that: The linkage cleaning assembly also includes a brush roller. The secondary shaft is sleeved with the brush roller on the outside, and the circumferential bristles of the brush roller fit the inner filtering surface of the mesh grille.

7. A circulating dredging type industrial wastewater treatment device according to claim 6, characterized in that: The linkage cleaning assembly also includes a slag collecting groove and a splash plate. The bottom of the secondary shaft is obliquely provided with a slag collecting groove, and the side wall of the slag collecting groove located in the mesh grille is fixedly connected with the splash plate.

8. A circulating dredging type industrial wastewater treatment device according to claim 7, characterized in that: A high-pressure flushing assembly is provided at the outer side end of the mesh grille, and the high-pressure flushing assembly includes a base, a guide rail and a bearing seat. The base is welded and fixed to the side end of the pretreatment tank, and a guide rail is fixedly installed at the middle end of the top of the base, and bearing seats are symmetrically fixed at both ends of the top of the base.

9. A circulating dredging type industrial wastewater treatment device according to claim 8, characterized in that: The high-pressure flushing assembly also includes a reciprocating screw, a pulley, a slider and a guide pin. The reciprocating screw is rotatably installed inside the bearing seat, and the reciprocating screw is circumferentially provided with two thread grooves with the same pitch and opposite rotation direction. The end of the reciprocating screw is coaxially connected to a pulley, and the pulley is connected to the main shaft for rotation transmission through a belt. The thread groove of the reciprocating screw pushes the slider placed therein to perform axial reciprocating motion, and the slider is limited and slidably matched with the guide rail through the guide pin extending from the bottom.

10. A circulating dredging type industrial wastewater treatment device according to claim 9, characterized in that: The high-pressure flushing assembly also includes a bracket, a high-pressure nozzle, a corrugated hose, a water pump and a water inlet rigid pipe. Brackets are symmetrically fixed at both ends of the top of the slider, and the high-pressure nozzle is fastened with bolts inside the bracket, and the high-pressure nozzle passes through the through hole on the side of the casing and faces the supporting surface outside the mesh grille. The tail of the high-pressure nozzle is connected to a corrugated hose, and the corrugated hose is connected to the output end of the water pump, and the input end of the water pump is connected to the rear end of the pretreatment tank through the water inlet rigid pipe.

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