Dosing type wastewater treatment equipment for shoe factory

Abstract

The invention belongs to the technical field of shoemaking wastewater treatment, and particularly relates to shoe factory dosing type wastewater treatment equipment which comprises a tank body and a stirring shaft arranged in the tank body in the axial direction, and further comprises a dosing mechanism, a dosing cylinder, a guide wheel, a wavy guide rail and fan blades which are sequentially arranged from top to bottom, the dosing cylinder is communicated with the dosing mechanism, is fixed on the upper surface of the tank body and is separated from the stirring shaft; the guide wheel is arranged in the tank body and slides along the wavy guide rail under the pushing of the fan blades; wherein a lower opening of the medicine adding cylinder extends into the tank body and is provided with a flat nozzle, and a medicine feeding metal wheel and a medicine storage groove which is formed in the surface of the medicine feeding metal wheel and used for loading medicine are rotationally installed in the flat nozzle. The stirring action and the dosing action are linked, a medicament consumption interval is reserved, instantaneous dissolution of a medicament is facilitated, the stirring action and the dosing action are allowed to avoid flocculate precipitation on the lower layer, and the medicament is effectively prevented from being wrapped by the flocculate precipitation.

Description

Technical Field

[0001] The invention belongs to the technical field of shoemaking wastewater treatment, and in particular relates to a drug-adding wastewater treatment device for a shoemaking factory. Background Art

[0002] The wastewater discharged by shoe factories contains a large amount of organic matter, and the methods for treating wastewater are divided into pretreatment, main treatment and post-treatment. Among them, pretreatment mainly involves interception of suspended matter and floating matter, regulation of water quality and quantity, oil-water separation, etc., which can generally be completed in a sewage collection pool. Organic components are difficult to filter through metal grids, and still need to be treated with drugs in the main treatment and post-treatment stages, such as flocculants, phosphorus removal agents, nitrifying agents, etc. Post-treatment uses conventional measures such as filtration, activated carbon adsorption, and ultraviolet disinfection, mainly for the targeted elimination of odor components and microorganisms in the tail water.

[0003] Among them, the heavy metal ions contained in the tail water can be removed by adsorption, membrane separation, microbial remediation, etc., so that the heavy metal ion content is greatly reduced and meets the discharge standards. In the treatment process of this stage, the physical or microbial treatment method is basically achieved without the need for additional drugs.

[0004] For the main treatment stage, the added drugs generally need to be stirred to accelerate their diffusion. Some manufacturers also open a dosing channel inside the stirring rod. Although this achieves a gradient dosing from high to low in the treatment tank, as the flocculants increase, they gather at the bottom of the treatment tank, which not only blocks the dosing channel at the bottom and makes it difficult to clean, causing the drugs in the dosing channel to be wrapped by the flocculants, but also applies resistance to the stirring rod at the bottom, increasing the load on the stirring motor. Summary of the invention

[0005] The purpose of the present invention is to provide a shoe factory dosing wastewater treatment equipment, which can link stirring action and dosing action, which is conducive to the instantaneous dissolution of the agent, while allowing the flocculants in the lower layer to settle, effectively preventing the agent from being wrapped by the flocculants.

[0006] The technical solution adopted by the present invention is as follows: A dosing wastewater treatment device for a shoe factory, comprising a tank body and a stirring shaft axially arranged inside the tank body, and also comprising a dosing mechanism, a dosing cartridge, a guide wheel, a wavy guide rail and a fan blade arranged in sequence from top to bottom, wherein the fan blade is installed outside the stirring shaft, the dosing cartridge is connected to the dosing mechanism and fixed on the upper surface of the tank body and separated from the stirring shaft, and the guide wheel is arranged inside the tank body and slides along the wavy guide rail through the push of the fan blade; The lower opening of the medicine adding cylinder extends into the interior of the tank body and is provided with a flat mouth, a medicine delivery metal wheel is rotatably installed inside the flat mouth, and a medicine storage groove for loading medicine is provided on the surface of the medicine delivery metal wheel; When adding medicine, the medicine is added to the upper layer of sewage along the flat mouth through the medicine adding cylinder, so that the medicine avoids the flocculants in the lower layer and settles; During stirring, the stirring shaft drives the fan blades and the guide wheel to rotate along the wave-shaped guide rail and swing up and down to turn over the dissolved agent and allow the flocculants in the lower layer to settle; When the medicine delivery metal wheel contacts the guide wheel, the medicine delivery metal wheel is briefly rotated to a certain amplitude until the medicine storage groove loaded with the medicine is exposed to deliver the medicine into the sewage body. In this way, the medicine storage groove is intermittently rotated to automatically deliver the medicine at intervals, thereby realizing the linkage between stirring and dosing, and leaving enough time for the consumption of the medicine. Each dosing is carried out at a lower concentration, which is conducive to the instantaneous dissolution of the medicine. Moreover, the overall process is elevated, which can completely allow the flocculants in the lower layer to settle, effectively preventing the medicine from being wrapped by the flocculants.

[0007] As a preferred embodiment, the fan blades include a rotating fork and a fan-shaped metal frame which are connected in sequence with the stirring shaft, and an alloy blade arranged inside the fan-shaped metal frame. The fan-shaped metal frame is spaced from the wavy guide rail on one side away from the stirring shaft and is rotatably connected to the middle of the guide wheel. One end of the alloy blades is inclined to extend out of the fan-shaped metal frame to drive the guide wheel to revolve around the stirring shaft. One end of the alloy blades is designed to extend out of the fan-shaped metal frame to cause turbulence when the fan-shaped metal frame rotates. In this way, the stirring shaft drives the fan blades and the guide wheel to rotate along the wavy guide rail and swing up and down at the same time to turn over the dissolved agent. At this time, the fan blades can also allow the flocculants in the lower layer to settle, reduce the resistance caused by the flocculants, and effectively reduce the load on the driving motor.

[0008] As a preferred solution, a vibrator fixedly connected to the root of the alloy blade and an elastic member extending toward the inner edge of the fan-shaped metal frame are arranged in the middle of the fan-shaped metal frame. The elastic member is used to make the alloy blades and the vibrator jump along with the up and down swing of the fan-shaped metal frame. The inertia of the vibrator is used to carry the alloy blades to jump up and down while revolving around the stirring shaft. The three-dimensional stirring agent can automatically change the stirring depth of the alloy blades, promote the convergence of sewage at different depths, facilitate the lifting of smaller flocs, and be used to absorb small clusters of flocs that have just been produced, thereby accelerating the formation of clusters and sedimentation of flocs.

[0009] As a preferred solution, the upper and lower sides of the fan-shaped metal frame are welded with limit plates for blocking the alloy blades, and the limit plates are provided with double ring holes for circulating sewage to reduce the resistance encountered by the limit plates as the fan-shaped metal frame rotates.

[0010] As a preferred embodiment, the dosing mechanism includes a medicine box and an electromagnetic valve and an alloy medicine tube connected to the medicine box in sequence, the lower end of the alloy medicine tube is connected to the medicine inlet of the medicine adding cartridge, and when the electromagnetic valve is opened, the medicine is delivered to the medicine adding cartridge through the alloy medicine tube.

[0011] As a preferred solution, two pressure plates and sealing gaskets fixedly connected to the inner sides of the pressure plates are forked and fixed on both sides of the flat mouth. The pressure plates press the sealing gaskets to stick to the outer circle of the medicine delivery metal wheel, so as to close the gap between the flat mouth and the medicine delivery metal wheel, especially when the medicine delivery metal wheel is stationary, the flat mouth is effectively blocked, which facilitates the flat mouth to dispense medicine and prevents sewage from entering and causing medicine contamination.

[0012] As a preferred solution, a damping washer and a plurality of metal rivets embedded in the damping washer are installed on the outside of the guide wheel. The plurality of metal rivets surround the guide wheel and are used to push the damping washer to stick to the medicine delivery metal wheel. On the one hand, they are used to increase the friction of the contact surface to prevent slipping. On the other hand, the deformation of the damping washer can be used to buffer when contact occurs to avoid hard collision.

[0013] As a preferred solution, the water outlet of the tank body is laterally connected to a waste box and a tailwater valve in sequence, a filter screen for intercepting flocculants is fixed on the inner wall of the waste box close to the tailwater valve, and the lower surface of the waste box is connected to a discharge valve for discharging flocculants.

[0014] As a preferred solution, the waste slag box is vertically provided with a steel cable, a rocking table and a gravity pendant in sequence, the rocking table and the gravity pendant are suspended on the upper wall of the waste slag box through the steel cable, and the inner wall of the waste slag box is an open hole structure for spreading flocculants.

[0015] As a preferred solution, a sound insulation layer and a heat preservation cover are sequentially provided on the outside of the waste slag box, wherein the sound insulation layer is used to absorb the noise generated by the shaking of the shaker, and the heat preservation cover is used to slow down the heat exchange between the waste slag box and the external environment.

[0016] The technical effects achieved by the present invention are: The present invention briefly turns the medicine delivery metal wheel to rotate a certain amplitude until a medicine storage groove loaded with the medicine is exposed to deliver the medicine into the sewage body. The medicine storage groove is intermittently rotated to automatically deliver the medicine at intervals, thereby realizing the linkage between stirring and dosing, and leaving enough time for the consumption of the medicine. Each dosing is carried out at a relatively low concentration, which is conducive to the instantaneous dissolution of the medicine. Moreover, the overall process is elevated, which can completely allow the flocculants in the lower layer to settle, effectively preventing the medicine from being wrapped by the flocculants.

[0017] The present invention drives the guide wheel to revolve around the stirring shaft, and one end of the alloy blade is designed to be inclined to extend out of a fan-shaped metal frame for disturbing the flow when the fan-shaped metal frame rotates. In this way, the stirring shaft drives the fan blades and the guide wheel to rotate along the wavy guide rail and swing up and down at the same time to stir the dissolved agent. At this time, the fan blades can also allow the flocculants in the lower layer to settle, thereby reducing the resistance caused by the flocculants and effectively alleviating the load of the driving motor.

[0018] The present invention uses elastic parts for alloy blades and vibrators to bounce along with the up and down swing of the fan-shaped metal frame, and utilizes the inertia of the vibrator to carry the alloy blades to bounce up and down while revolving around the stirring shaft. The three-dimensional stirring agent can automatically change the stirring depth of the alloy blades, promote the confluence of sewage at different depths, facilitate the lifting of smaller flocs, and be used for absorbing small clusters of flocs that have just been generated, thereby accelerating the formation of clusters and sedimentation of flocs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of a shoe factory dosing wastewater treatment device of the present invention; Figure 2 It is a side view of a shoe factory dosing wastewater treatment device of the present invention; Figure 3 is a cross-sectional view of a tank body of the present invention; Figure 4 The present invention Figure 3 The enlarged view of point A in the middle; Figure 5 It is a schematic diagram of the structure of the stirring shaft and the fan blades after being assembled in the present invention; Figure 6 is a cross-sectional view of the drug-adding cartridge of the present invention; Figure 7 It is a schematic diagram of the structure of the fan blade of the present invention; Figure 8 is a cross-sectional view of a guide wheel of the present invention; Fig. 9 It is the front view of rocking table of the present invention.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Tank body; 101. Water inlet; 2. Stirring shaft; 202. Driving motor; 3. Dosing cartridge; 4. Guide wheel; 5. Wave-shaped guide rail; 6. Flat mouth; 7. Metal wheel for feeding medicine; 8. Medicine storage groove; 9. Rotating yoke; 10. Fan-shaped metal frame; 11. Alloy blades; 12. Elastic parts; 13. Vibrator; 14. Limiting plate; 15. Double ring hole; 16. Medicine box; 17. Solenoid valve; 18. Alloy medicine tube; 19. Sealing gasket; 20. Pressure plate; 21. Damping gasket; 22. Metal rivet; 23. Waste slag box; 24. Filter screen; 25. Tail water valve; 26. Slag discharge valve; 27. Steel cable; 28. Shaking table; 29. ​​Gravity pendant; 30. Sound insulation layer; 31. Insulation cover. DETAILED DESCRIPTION

[0021] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0022] The shoe factories concerned by the present invention have a scale of less than 1,500 people. The target of wastewater treatment in these shoe factories is generally 200t / d. Although wastewater pretreatment can filter out many impurities, sludge, etc., it is difficult for organic components to be filtered through metal grids, and it is still necessary to add chemicals to the wastewater, such as flocculants, dephosphorizers, nitrifiers, etc.

[0023] like Figure 1-Figure 9 As shown, a dosing wastewater treatment equipment for a shoe factory includes a tank body 1 and a stirring shaft 2 axially arranged inside the tank body 1. In order to realize the linkage between dosing and stirring in the sewage treatment process, it also includes a dosing mechanism, a dosing cartridge 3, a guide wheel 4, a wavy guide rail 5 and a fan blade arranged in sequence from top to bottom. The fan blade is installed on the outside of the stirring shaft 2 and can rotate with the stirring shaft 2. The dosing cartridge 3 is connected to the dosing mechanism and fixed on the upper surface of the tank body 1 and separated from the stirring shaft 2, so that the medicine in the dosing mechanism can be put into the dosing cartridge 3. The guide wheel 4 is arranged inside the tank body 1 and can slide along the wavy guide rail 5 through the push of the fan blade, so as to stir the medicine flowing out of the dosing cartridge 3 and separate it from the precipitated flocculants in the lower layer of the sewage.

[0024] Among them, the pre-treated sewage needs to be pumped into the tank 1 along the water inlet 101. As the sewage enters, the industrial computer controls the drive motor 202 to rotate the stirring shaft 2 to drive the fan blades to stir the sewage. After no sewage enters for a certain period of time, the drive motor 202 is controlled to stop to avoid idling and wasting electricity. The industrial computer can use a Mitsubishi microcontroller for communication control, with a high degree of automation.

[0025] See attached Figure 1 , Figure 2 and Figure 3 When sewage is sent into the tank 1, the addition of flocculants, dephosphorizing agents, nitrifying agents and other agents must be timely. The dosing mechanism used in this embodiment includes a medicine box 16 and a solenoid valve 17 and an alloy medicine tube 18 which are connected to the medicine box 16 in sequence. The solenoid valve 17 is opened by the industrial computer, and the lower end of the alloy medicine tube 18 is connected to the medicine inlet of the dosing cartridge 3. When the solenoid valve 17 is opened, the medicine is transported to the dosing cartridge 3 through the alloy medicine tube 18. At this time, the dosing cartridge 3 puts the medicine along the flat mouth 6 into the upper layer of the sewage, so that the medicine avoids the flocculants in the lower layer from settling.

[0026] Furthermore, in the present embodiment, there are preferably three medicine boxes 16, and medicines are added from different points around the stirring shaft 2 to facilitate uniform diffusion. In particular, the medicine boxes 16 are suspended above the tank body 1, which is convenient for maintenance personnel to add medicines at a location far away from the tank body 1 along a corridor or other places, avoiding the damp and odorous tank body 1 without climbing the tank body 1.

[0027] See attached Figure 3 , Figure 5 and Figure 7Since the medicine enters the sewage and scatters in clumps and is easy to agglomerate, stirring is very necessary. The fan blades in this embodiment include a rotating yoke 9 and a fan-shaped metal frame 10 connected in sequence with the stirring shaft 2, and an alloy blade 11 arranged inside the fan-shaped metal frame 10, which can rotate with the stirring shaft 2, and the fan-shaped metal frame 10 is spaced from the wavy guide rail 5 on the side away from the stirring shaft 2 and is rotatably connected to the middle of the guide wheel 4, which can drive the guide wheel 4 to revolve around the stirring shaft 2. One end of the alloy blade 11 is designed to extend obliquely from the fan-shaped metal frame 10. The inclined extension part can drain the sewage and the medicine for turbulence when the fan-shaped metal frame 10 rotates. In this way, the stirring shaft 2 drives the fan blades and the guide wheel 4 to rotate along the wavy guide rail 5 and swing up and down at the same time to flip the dissolved medicine. At this time, the fan blades can also let the flocculants in the lower layer settle, reduce the resistance caused by the flocculants, and effectively reduce the load of the drive motor 202.

[0028] See attached Figure 3 , Figure 5 and Figure 6 When adding medicine, continuous drug administration will cause excessive concentration of medicine, which is more likely to cause agglomeration. In this embodiment, the lower opening of the drug adding cylinder 3 is extended into the interior of the tank body 1 and is equipped with a flat mouth 6. The flat mouth 6 is used for the medicine to enter the tank body 1 and for temporary storage of the medicine. A medicine feeding metal wheel 7 and a medicine storage groove 8 for loading medicine are installed in the flat mouth 6 for rotation. In this way, when the guide wheel 4 moves along the wavy guide rail 5, there will be several highest points and lowest points. Once the guide wheel 4 reaches the highest point, it will contact the adjacent medicine feeding metal wheel 7, and briefly turn the medicine feeding metal wheel 7 to rotate a certain amplitude until the medicine storage groove 8 loaded with medicine is exposed to deliver the medicine into the sewage body. In this way, the medicine storage groove 8 is intermittently rotated to automatically deliver the medicine at intervals, thereby realizing the linkage between stirring and drug administration, and leaving enough time for medicine consumption. Each drug administration is carried out at a lower concentration, which is conducive to the instantaneous dissolution of the medicine, and the overall elevation of the process can completely allow the flocculants in the lower layer to precipitate, effectively preventing the medicine from being wrapped by the flocculants.

[0029] As an optional embodiment, the number of fan blades is set to at least 3, each fan blade carries 2 guide wheels 4, and the number of wavy guide rails 5 is set to 2, so that the two guide wheels 4 are used to clamp the two wavy guide rails 5 from the upper and lower sides respectively to limit the position, so as to prevent the fan blades from derailing and flying away.

[0030] See attached Figure 3 , Figure 5 and Figure 6In order to prevent the medicine from leaking out of the flat mouth 6, it is necessary to further strengthen the sealing. In this embodiment, two pressure plates 20 and a sealing gasket 19 fixedly connected to the inner side of the pressure plate 20 are fixed on both sides of the flat mouth 6, and the pressure plate 20 is designed to press the sealing gasket 19 with an arc surface structure to stick to the outer circle of the medicine delivery metal wheel 7, which is used to close the gap between the flat mouth 6 and the medicine delivery metal wheel 7, especially when the medicine delivery metal wheel 7 is stationary, the flat mouth 6 is effectively blocked, which facilitates the flat mouth 6 to dispense medicine and prevents sewage from entering to cause medicine contamination.

[0031] See attached Figure 5 and Figure 8 Since the contact surface between the guide wheel 4 and the medicine delivery metal wheel 7 is relatively smooth and lubricated by sewage, the contact surface is very easy to slip. Therefore, in this embodiment, a damping washer 21 and a plurality of metal rivets 22 embedded in the damping washer 21 are installed on the outside of the guide wheel 4. The plurality of metal rivets 22 surround the guide wheel 4 and are used to push the damping washer 21 to stick to the medicine delivery metal wheel 7. On the one hand, they are used to increase the friction of the contact surface to prevent slipping. On the other hand, the deformation of the damping washer 21 is used to buffer when contact occurs to avoid hard collision.

[0032] See attached Figure 5 and Figure 7 During the stirring process, in this embodiment, a vibrator 13 fixedly connected to the root of the alloy blade 11 and an elastic member 12 extending toward the inner edge of the fan-shaped metal frame 10 are arranged in the middle of the fan-shaped metal frame 10. The elastic member 12 is used to make the alloy blade 11 and the vibrator 13 jump along with the up and down swing of the fan-shaped metal frame 10. In order to withstand the corrosion of the agent or sewage, the elastic member 12 can be made of fluorosilicone rubber. The inertia of the vibrator 13 is used to carry the alloy blade 11 to jump up and down while revolving around the stirring shaft 2, and the agent is stirred three-dimensionally. The stirring depth of the alloy blade 11 can be automatically changed, and sewage of different depths can be merged, which is convenient for lifting smaller flocs, and is used to absorb small flocs that have just been produced, and accelerate the formation of flocs and precipitation.

[0033] See attached Figure 5 and Figure 7 The jumping of the alloy blades 11 may collide with the wavy guide rail 5. Therefore, in this embodiment, limit plates 14 for blocking the alloy blades 11 are welded on the upper and lower sides of the fan-shaped metal frame 10 to separate the wavy guide rail 5 and the alloy blades 11, and double ring holes 15 for circulating sewage are opened on the limit plates 14 to reduce the resistance encountered by the limit plates 14 when rotating with the fan-shaped metal frame 10, and to disturb the flow along the inclined surface of the limit plates 14 to increase the angle of sewage stirring.

[0034] See attached Figure 4During the stirring process, the flocculants continuously form large clumps and precipitate. The water outlet of the tank body 1 of this embodiment is laterally connected with a waste slag box 23 and a tailwater valve 25 in sequence. The waste slag box 23 is used to receive the precipitates separated due to centrifugal action during the stirring process. At this time, a filter screen 24 for intercepting flocculants is fixed on the inner wall of the waste slag box 23 near the tailwater valve 25, and the precipitates are gathered at the bottom of the box. Then, a slag discharge valve 26 for discharging flocculants is connected to the lower surface of the waste slag box 23, and the slag discharge valve 26 is opened regularly to discharge the precipitates.

[0035] See attached Figure 4 , Figure 5 and Fig. 9 Since there are gaps between the sediments, sewage may be retained. Therefore, a steel cable 27, a shaking table 28 and a gravity pendant 29 are vertically arranged in sequence in the waste residue box 23. The shaking table 28 and the gravity pendant 29 are suspended on the upper wall of the waste residue box 23 through the steel cable 27. As the sewage is stirred, the shaking table 28 and the gravity pendant 29 continuously pull the steel cable 27 to shake. At this time, the inner wall of the waste residue box 23 is an open-pore structure for spreading the flocs. The gap can be temporarily opened to release the retained sewage.

[0036] See attached Figure 4 and Figure 5 The outside of the waste slag box 23 is sequentially covered with a sound insulation layer 30 and a heat preservation sleeve 31, wherein the sound insulation layer 30 is used to absorb the noise generated by the shaking of the shaking table 28, and the heat preservation sleeve 31 is used to slow down the heat exchange between the waste slag box 23 and the external environment, thereby optimizing the change of noise during the sewage treatment process.

[0037] In this embodiment, the sound insulation layer 30 may be made of porous polyester fiber cotton, which absorbs sound wave energy while being less affected by thermal expansion and contraction effects. In other embodiments, porous materials such as glass wool and rock wool may be used, and the thermal insulation sleeve 31 may be made of polyurethane foam, which is relatively soft and can provide thermal insulation without tightening the waste slag box 23. In other embodiments, mineral wool, foam plastics and other materials may be used.

[0038] The working principle of the present invention is as follows: the pre-treated sewage needs to be pumped into the tank body 1 along the water inlet 101, and when the solenoid valve 17 is opened, the medicine is delivered to the medicine adding cylinder 3 through the alloy medicine tube 18, and the driving motor 202 is controlled to rotate the stirring shaft 2, the fan blades can rotate with the stirring shaft 2, and the fan-shaped metal frame 10 drives the guide wheel 4 to revolve around the stirring shaft 2, and the inclined extension part of the alloy blade 11 can drain the sewage and the medicine to be used for turbulence when the fan-shaped metal frame 10 rotates, so that the stirring shaft 2 drives the fan blades and the guide wheel 4 to rotate along the wavy guide rail 5 and swing up and down at the same time to turn over the dissolved medicine. At this time, the fan blades can also let the flocculants in the lower layer settle, reduce the resistance caused by the flocculants, and effectively reduce the load of the driving motor 202.

[0039] In this way, when the guide wheel 4 moves forward along the wavy guide rail 5, several highest points and lowest points will appear. Once the guide wheel 4 reaches the highest point, it will contact the adjacent medicine delivery metal wheel 7, and briefly turn the medicine delivery metal wheel 7 to rotate a certain amplitude until the medicine storage groove 8 loaded with medicine is exposed to deliver the medicine into the sewage body. In this way, the medicine storage groove 8 is intermittently rotated to automatically deliver the medicine at intervals, thereby realizing the linkage between stirring and dosing, and leaving enough time for medicine consumption. Each dosing is carried out at a lower concentration, which is conducive to the instantaneous dissolution of the medicine, and the overall elevation of the process can completely allow the flocculants in the lower layer to settle, effectively preventing the medicine from being wrapped by the flocculants.

[0040] During the stirring process, the flocculants continuously form large clumps of sediment. The water outlet of the tank body 1 of this embodiment is laterally connected with a waste slag box 23 and a tailwater valve 25 in sequence. The waste slag box 23 is used to receive the sediment separated due to centrifugal action during the stirring process. At this time, a filter screen 24 for intercepting flocculants is fixed on the inner wall of the waste slag box 23 near the tailwater valve 25, and the sediment is gathered at the bottom of the box. Then, a slag discharge valve 26 for discharging flocculants is connected to the lower surface of the waste slag box 23, and the slag discharge valve 26 is opened regularly to discharge the sediment.

[0041] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A shoe factory dosing wastewater treatment device, comprising a tank body (1) and a stirring shaft (2) axially arranged inside the tank body (1), characterized in that: It also comprises a dosing mechanism, a dosing cartridge (3), a guide wheel (4), a wavy guide rail (5) and a fan blade which are arranged in sequence from top to bottom, wherein the fan blade is mounted on the outside of the stirring shaft (2), the dosing cartridge (3) is connected to the dosing mechanism and is fixed on the upper surface of the tank body (1), and the guide wheel (4) is arranged inside the tank body (1) and slides along the wavy guide rail (5) through the push of the fan blade; The lower opening of the drug adding cylinder (3) extends into the interior of the tank body (1) and is provided with a flat mouth (6), a drug delivery metal wheel (7) is rotatably installed inside the flat mouth (6), and a drug storage groove (8) for loading drugs is provided on the surface of the drug delivery metal wheel (7); When adding medicine, the medicine is added to the upper layer of the sewage along the flat mouth (6) through the medicine adding cylinder (3), so that the medicine avoids the flocculants in the lower layer and settles; During stirring, the stirring shaft (2) drives the fan blades and the guide wheel (4) to rotate along the wavy guide rail (5) and swing up and down to stir the dissolved agent to avoid the flocculants in the lower layer from settling; The medicine delivery metal wheel (7) and the guide wheel (4) are in instantaneous contact so that the medicine storage groove (8) delivers medicines at intervals.

2. A shoe factory dosing wastewater treatment equipment according to claim 1, characterized in that: The fan blade comprises a rotating yoke (9) and a fan-shaped metal frame (10) which are sequentially connected to the stirring shaft (2), and an alloy blade (11) arranged inside the fan-shaped metal frame (10); a side of the fan-shaped metal frame (10) away from the stirring shaft (2) is spaced from the wavy guide rail (5) and is rotatably connected to the middle of the guide wheel (4); one end of the alloy blade (11) extends obliquely out of the fan-shaped metal frame (10) for disturbing the flow when the fan-shaped metal frame (10) rotates.

3. A shoe factory dosing wastewater treatment equipment according to claim 2, characterized in that: A vibrator (13) fixedly connected to the root of the alloy blade (11) and an elastic member (12) extending toward the inner edge of the fan-shaped metal frame (10) are arranged in the middle of the fan-shaped metal frame (10), and the elastic member (12) is used to make the alloy blade (11) and the vibrator (13) jump as the fan-shaped metal frame (10) swings up and down.

4. The shoe factory dosing wastewater treatment equipment according to claim 2 is characterized by: Limiting plates (14) for blocking the alloy blades (11) are welded to the upper and lower sides of the fan-shaped metal frame (10), and double ring holes (15) for circulating sewage are opened on the limiting plates (14) to reduce the resistance encountered by the limiting plates (14) when rotating with the fan-shaped metal frame (10).

5. The shoe factory dosing wastewater treatment equipment according to claim 1 is characterized by: The drug delivery mechanism comprises a medicine box (16), and an electromagnetic valve (17) and an alloy medicine tube (18) which are sequentially connected to the medicine box (16); the lower end of the alloy medicine tube (18) is connected to the medicine inlet of the medicine adding cartridge (3); when the electromagnetic valve (17) is opened, the medicine is delivered to the medicine adding cartridge (3) through the alloy medicine tube (18).

6. The shoe factory dosing wastewater treatment equipment according to claim 1 is characterized by: Two pressure plates (20) and a sealing gasket (19) fixedly connected to the inner side of the pressure plate (20) are forked and fixed on both sides of the flat mouth (6); the pressure plate (20) presses the sealing gasket (19) to stick to the outer circle of the medicine delivery metal wheel (7) to close the gap between the flat mouth (6) and the medicine delivery metal wheel (7).

7. The shoe factory dosing wastewater treatment equipment according to claim 1 is characterized by: A damping washer (21) and a plurality of metal rivets (22) embedded in the damping washer (21) are installed on the outside of the guide wheel (4); the plurality of metal rivets (22) surround the guide wheel (4) and are used to push the damping washer (21) to stick to the medicine delivery metal wheel (7).

8. The shoe factory dosing wastewater treatment equipment according to claim 1 is characterized by: The water outlet of the tank body (1) is laterally connected to a waste slag box (23) and a tailwater valve (25) in sequence; a filter screen (24) for intercepting flocculants is fixed on a side of the inner wall of the waste slag box (23) close to the tailwater valve (25); and a discharge valve (26) for discharging flocculants is connected to the lower surface of the waste slag box (23).

9. The shoe factory dosing wastewater treatment equipment according to claim 8 is characterized by: The waste slag box (23) is vertically provided with a steel cable (27), a shaking table (28) and a gravity pendant (29) in sequence; the shaking table (28) and the gravity pendant (29) are suspended on the upper wall of the waste slag box (23) via the steel cable (27); and the inner wall of the shaking table (28) is evenly provided with honeycomb holes for spreading flocculants.

10. The shoe factory dosing wastewater treatment equipment according to claim 9, characterized in that: The waste slag box (23) is provided with a sound insulation layer (30) and a heat insulation sleeve (31) in sequence on the outside, wherein the sound insulation layer (30) is used to absorb the noise generated by the shaking of the shaking table (28), and the heat insulation sleeve (31) is used to slow down the heat exchange between the waste slag box (23) and the external environment.

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