WO2020224635A1 - Textile printing and dyeing wastewater treatment device - Google Patents

Abstract

Disclosed is a textile printing and dyeing wastewater treatment device, relating to the field of environmental protection apparatuses. In the technical solution, a coagulating basin is comprised, a pollution discharge pipe is arranged below the middle of the coagulating basin, a bridge body is arranged above the coagulating basin, a stirring mechanism is suspended below the bridge body, a lower portion of the stirring mechanism extends into the coagulating basin, the coagulating basin comprises a plurality of annular basin bodies arranged from outside to inside in a sleeved manner, the stirring mechanism is provided with several stirring rods corresponding to a peripheral basin body, the stirring rods comprise rod bodies vertically arranged at a lower portion of the stirring mechanism, and spiral blades are arranged at the periphery of the rod bodies. The present invention has the beneficial effect that the device realizes the entire coagulating process by means of a layered basin structure. The rotation of the stirring mechanism and the rotation of the stirring rods can be achieved by means of a main electric motor, and under the condition of not hindering the stirring mechanism from rotating, the rotation speed of the stirring rods can be adjusted using a differential mechanism and a locking mechanism. In addition, compared with normal stirring blades, the stirring rods with the spiral blades are less prone to damaging a flocculation structure.

Description

Textile printing and dyeing wastewater treatment device Technical field

The invention relates to the field of environmental protection equipment, in particular to a textile printing and dyeing wastewater treatment device.

Background technique

Textile printing and dyeing wastewater is wastewater discharged from the processing of cotton, linen, chemical fibers and their blended products, silk-based printing and dyeing, woolen dyeing and finishing, and silk factories. Different fiber types and processing techniques, the amount and quality of printing and dyeing wastewater are also different. Among them, the amount of wastewater in printing and dyeing plants is relatively large, and each printing and dyeing process 1 ton of textiles consumes 100 to 200 tons of water, of which 80% to 90% is discharged as wastewater. Printing and dyeing wastewater has the characteristics of large water volume, high content of organic pollutants, large alkalinity, and large water quality changes. It is one of the difficult-to-treat industrial wastewaters. The wastewater contains dyes, sizing agents, additives, oils, acid and alkali, and fiber impurities. , Sand materials, inorganic salts, etc.

The common treatment method for textile printing and dyeing wastewater is "coagulation". The coagulation method is to put a coagulation agent into the wastewater to destabilize the colloidal particles and fine suspended matter, and aggregate them into alum flowers of hundreds of microns or even a few millimeters, which can then be removed by gravity sedimentation or other solid-liquid separation methods Wastewater treatment technology. Generally speaking, the overall process of the coagulation method requires the use of multiple coagulation tanks to form a step-by-step sedimentation effect, so it takes up a lot of space.

Summary of the invention

In view of the above technical problems, the present invention provides a textile printing and dyeing wastewater treatment device with a relatively small occupied area.

The technical solution includes a coagulation tank, a sewage pipe is arranged below the middle of the coagulation tank, a bridge is arranged above the coagulation tank, a stirring mechanism is suspended below the bridge, and the lower part of the stirring mechanism extends into the coagulation tank The coagulation tank includes a plurality of annular tank bodies sleeved from the outside to the inside, the stirring mechanism is provided with a plurality of stirring rods corresponding to the outer pool body, and the stirring rod includes a rod body vertically arranged at the lower part of the stirring mechanism. Spiral blades are arranged around;

The upper center of the stirring mechanism is rotatably connected with the lower part of the bridge through a central shaft, and the stirring mechanism is driven by a main motor to rotate with the central shaft as an axis.

Preferably, the annular pool body of the coagulation tank is circular;

The annular tank body is sequentially provided with a primary tank, a secondary tank, and a sedimentation tank located in the center from the outside to the inside. The bottom of each annular tank is provided with a communication hole, and a valve is provided at the communication hole. The bottom of the sedimentation tank is connected to The sewage pipe is connected, and a valve is provided at the connection between the sewage pipe and the sedimentation tank.

Preferably, the stirring mechanism is respectively provided with stirring rods corresponding to the primary pool and the secondary pool.

Preferably, the stirring mechanism includes a horizontally arranged main support plate, and the central shaft is fixedly arranged at the center of the main support plate;

A set of stirring components are symmetrically arranged at both ends of the main support plate, and each of the stirring components includes two stirring rods respectively arranged in the primary tank and the secondary tank, and a roller located on the main support plate group;

Both the stirring rod and the roller set are driven by the main motor.

Preferably, each of the roller sets includes three rollers distributed in an isosceles triangle, including a driving wheel at the top and two driven wheels at the bottom, the driving wheel and the two driven wheels at the bottom. The two driven wheels are in close contact with the upper surface of the pool edge of the primary pool;

Both the rod bodies of the two stirring rods are provided with bevel gear plates, and the main motor drives the stirring rods located in the primary tank and the driving wheels in the roller set through a differential;

The power input end of the differential is linked with the motor shaft of the main motor, the two power output ends of the differential are linked with the driving wheel and the stirring rod respectively; one of the power output ends is linked with the The axle of the driving wheel is coaxial, and the other power output end meshes with the bevel gear plate on the stirring rod body through a bevel gear.

Preferably, the stirring rod located in the secondary tank is driven by another set of the main motor and a differential. The two power output ends of the differential are connected to the stirring rod in the secondary tank. The bevel gear disc is linked, and the other end is linked with the bevel gear disc of the stirring rod in the primary pool.

Preferably, the upper ends of the two stirring rods pass through the plate body of the main support plate and extend to the upper part of the main support plate; the upper end of the main support plate corresponds to the upper end of the stirring rod. The locking mechanism includes two arc-shaped hoop bodies, the hoop bodies are arranged on both sides of the upper end of the stirring rod, both sides of the hoop body are provided with ear plates, and the ear plates are threadedly connected to the adjusting screw, The adjusting screw is connected with the motor shaft of the auxiliary motor.

Preferably, the bottom of the sedimentation tank has a cone shape, and the end of the cone shape with a smaller area is the bottom end.

Preferably, the central part of the inner wall of the sedimentation tank is horizontally provided with a ring-shaped partition, and an inner baffle is vertically provided on the side of the partition close to the center of the sedimentation tank, and the inner baffle is also ring-shaped. Both the wall and the upper part of the inner baffle are provided with a number of notches, and the notches are distributed in a circumferential array.

The technical solution provided by the embodiment of the present invention has the beneficial effect that the device realizes the overall coagulation process through the layered pool structure. The rotation of the stirring mechanism and the rotation of the stirring rod can be realized through the main motor. The differential and locking mechanism are adopted to adjust the rotation speed of the stirring rod without hindering the rotation of the stirring mechanism. And the stirring rod with spiral blades is less likely to damage the flocculation structure than ordinary stirring blades.

Description of the drawings

Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention.

Fig. 2 is a schematic diagram of a hidden part of a housing according to an embodiment of the present invention.

Fig. 3 is a partial enlarged view of A in Fig. 2.

Fig. 4 is a schematic diagram of the structure of a sedimentation tank according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of the structure of a stirring rod according to an embodiment of the present invention.

Wherein, the reference signs are: 1. coagulation tank; 11, primary tank; 12, secondary tank; 13, sedimentation tank; 131, partition plate; 132, inner baffle; 2. stirring mechanism; 21, stirring rod; 22. Main support plate; 23. Roller set; 24. Differential; 3. Bridge body; 4. Sewage pipe; 5. Central shaft; 6. Main motor; 7. Locking mechanism.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

It should be noted that the embodiments in the invention and the features in the embodiments can be combined with each other if there is no conflict.

In the description of the invention, it should be understood that the terms "center", "vertical", "horizontal", "upper", "lower", "front", "rear", "left", "right", The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer" etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention The creation and simplification of the description does not indicate or imply that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of these features. In the description of the invention, unless otherwise specified, the meaning of "multiple" means two or more.

In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or an optional connection. Detachable connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meaning of the above terms in the creation of the present invention can be understood through specific circumstances.

Example 1

1 to 3, the present invention provides a textile printing and dyeing wastewater treatment device, including a coagulation tank 1, a sewage pipe 4 is arranged below the middle of the coagulation tank 1, and a bridge body 3 and a bridge body 3 are arranged above the coagulation tank 1. The stirring mechanism 2 is suspended below, and the lower part of the stirring mechanism 2 extends into the coagulation tank 1. The coagulation tank 1 includes a plurality of annular pool bodies sleeved from the outside to the inside. The stirring mechanism 2 is provided with a number of stirring rods 21 corresponding to the outer pool body. , The stirring rod 21 includes a rod body vertically arranged at the lower part of the stirring mechanism 2, and spiral blades are arranged around the rod body;

The upper center of the stirring mechanism 2 is rotatably connected to the lower part of the bridge body 3 through the central shaft 5, and the stirring mechanism 2 is driven by the main motor 6 to rotate with the central shaft 5 as the axis.

The annular tank body of the coagulation tank 1 is circular;

The annular tank body is sequentially provided with a primary tank 11, a secondary tank 12, and a sedimentation tank 13 in the center from the outside to the inside. The bottom of each annular tank is provided with a communicating hole, and a valve is provided at the communicating hole. The bottom is in communication with the sewage pipe 4, and a valve is provided at the connection between the sewage pipe 4 and the sedimentation tank 13.

The stirring mechanism 2 is respectively provided with stirring rods 21 corresponding to the primary pool 11 and the secondary pool 12.

The stirring mechanism 2 includes a horizontally arranged main support plate 22, and a central shaft 5 is fixedly arranged at the center of the main support plate 22;

A set of stirring components are symmetrically arranged at both ends of the main support plate 22, each stirring assembly includes two stirring rods 21 respectively arranged in the primary tank 11 and the secondary tank 12, and a roller group 23 located on the main support plate 22;

Both the stirring rod 21 and the roller set 23 are driven by the main motor 6.

Each roller set 23 includes three rollers distributed in an isosceles triangle, including a driving wheel at the top and two driven wheels at the bottom. The driving wheel is in close contact with the surface of the two driven wheels at the bottom. The driven wheel is attached to the upper surface of the pool edge of the primary pool 11;

The rod bodies of the two stirring rods 21 are equipped with bevel gear plates, and the main motor 6 drives the stirring rod 21 in the primary tank 11 and the driving wheel in the roller group 23 through the differential 24 respectively;

The power input end of the differential 24 is linked with the motor shaft of the main motor 6, and the two power output ends of the differential 24 are linked with the driving wheel and the stirring rod 21 respectively; one of the power output ends is coaxial with the axle of the driving wheel , The other power output end engages with the bevel gear plate on the rod body of the stirring rod 21 through a bevel gear.

The stirring rod 21 located in the secondary tank 12 is driven by another group of main motors 6 and a differential 24. The two power output ends of the differential 24 are connected to the bevel teeth of the stirring rod 21 in the secondary tank 12 The disc is linked, and the other end is linked with the bevel gear disc of the stirring rod 21 in the primary tank 11.

The upper ends of the two stirring rods 21 pass through the plate body of the main support plate 22 and extend to the upper part of the main support plate 22; the upper surface of the main support plate 22 corresponding to the upper end of the stirring rod 21 is provided with a locking mechanism 7, which includes There are two arc-shaped hoop bodies. The hoop bodies are arranged on both sides of the upper end of the stirring rod 21. Both sides of the hoop body are provided with ear plates. The ear plates are threadedly connected with the adjusting screw, and the adjusting screw is connected with the motor shaft of the auxiliary motor.

The bottom of the sedimentation tank 13 has a cone shape, and the end of the cone shape with a smaller area is the bottom end.

The central part of the inner wall of the sedimentation tank 13 is horizontally provided with an annular partition 131. The side of the partition near the center of the sedimentation tank 13 is vertically provided with an inner baffle 132. The inner baffle 132 is also annular. The upper part of the baffle 132 is provided with a number of notches, and the notches are distributed in a circumferential array.

When the present invention is used, when the entire pool body is emptied, the valves between the pool bodies are first closed and blocked, and then the waste water and coagulant to be treated are placed in the primary pool 11. Start the main motor 6, under the action of the main motor 6, the driving wheel in the roller set 23 is driven to rotate through the differential 24. Under the friction of the driving wheel, the two driven wheels at the bottom rotate synchronously, so that the roller set 23 drives the stirring The mechanism rotates with the central axis 5 as the axis. And in this process, the stirring rod 21 located in the primary pool 11 is activated, because its rod body is a spiral blade, so it plays the role of turning the water body in the vertical direction, and the stirring rod 21 in the primary pool 11 acts as Turning down the water body, instead of ordinary stirring blades in the horizontal direction to drive the water body movement, because the stirring mechanism 2 as a whole is horizontal rotation, so this stirring method is a slow large-scale circular path is the first movement path, and During the movement, the vertical flip is the second movement path. When the coagulant in the primary pool 11 is basically evenly mixed, open the valve between the primary pool 11 and the secondary pool 12, because at this time a part of the flocculation has already been generated in the primary pool 11, so through the action of the stirring rod 21 Under the effect of the communication between the lower part of the primary and secondary tanks, the stirring rod 21 serves to assist in squeezing the flocculation in the primary tank 11 into the secondary tank 12. The main motor 6 corresponding to the stirring rod 21 in the secondary tank 12 is linked with the stirring rod 21 in the primary tank 11 through another differential 24, because it is necessary to ensure that the output of the two differentials 24 is applied to the primary tank 11 The force on the stirring rod 21 in the middle is to drive the stirring rod 21 in the same direction, so the rotation of the stirring rod 21 in the primary pool 11 and the secondary pool 12 is opposite, that is, the stirring rod 21 in the secondary pool 12 affects the water body The flipping action is used as a movement from bottom to top. This form of movement helps to bring the flocs out of the primary tank 11. And because it flips from bottom to top, the upper water body can easily enter the space between the side wall of the sedimentation tank 13 and the inner baffle 132, and the upper water body here is basically purified water. In the secondary tank 12, because the flocculation is relatively heavy, the flocculation can be lifted up by turning the stirring rod 21, thereby helping the coagulant to have a better flocculation effect. Finally, the valve between the sedimentation tank 13 and the secondary tank 12 is opened, and the water in the secondary tank 12 enters the sedimentation tank for precipitation. Because the liquid level in the original tank will drop after opening the valve, only the wastewater to be purified and coagulant need to be added, which does not affect the water purification effect.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection of the present invention. Within range.

Claims (9)

A textile printing and dyeing wastewater treatment device includes a coagulation tank (1), a sewage pipe (4) is arranged below the middle of the coagulation tank (1), a bridge body (3) is arranged above the coagulation tank (1), and a bridge The stirring mechanism (2) is suspended below the body (3), and the lower part of the stirring mechanism (2) extends into the coagulation tank (1), characterized in that the coagulation tank (1) includes a sleeve from outside to inside The stirring mechanism (2) is provided with a plurality of stirring rods (21) corresponding to the outer pool body, and the stirring rod (21) includes a rod body vertically arranged at the lower part of the stirring mechanism (2), and the periphery of the rod body Set spiral blades; The upper center of the stirring mechanism (2) is rotatably connected with the bottom of the bridge body (3) through a central shaft (5), and the stirring mechanism (2) is driven by a main motor (6) to rotate with the central shaft (5) as an axis. The textile printing and dyeing wastewater treatment device according to claim 1, wherein the annular pool body of the coagulation tank (1) is circular; The annular tank body is sequentially provided with a primary tank (11), a secondary tank (12) and a sedimentation tank (13) located in the center from the outside to the inside. The bottom of each annular tank body is provided with communication holes, and the sedimentation tank (13) The bottom of) is in communication with the sewage pipe (4). The textile printing and dyeing wastewater treatment device according to claim 2, characterized in that the stirring mechanism (2) is respectively provided with stirring rods (21) corresponding to the primary pool (11) and the secondary pool (12). The textile printing and dyeing wastewater treatment device according to claim 3, characterized in that the stirring mechanism (2) comprises a horizontally arranged main support plate (22), and the center of the main support plate (22) is fixedly arranged Bottom axis (5); A set of stirring components are symmetrically arranged at both ends of the main support plate (22), and each of the stirring components includes two stirring rods respectively arranged in the primary pool (11) and the secondary pool (12). 21), and a roller set (23) located on the main support plate (22); The stirring rod (21) and the roller set (23) are both driven by the main motor (6). The textile printing and dyeing wastewater treatment device according to claim 4, characterized in that, each of the roller sets (23) includes three rollers distributed in an isosceles triangle, including a driving wheel at the top and two wheels at the bottom. A driven wheel, the driving wheel is in close contact with the wheel surfaces of the two driven wheels at the bottom, and the two driven wheels are in contact with the upper surface of the pool edge of the primary pool (11); The rod bodies of the two stirring rods (21) are equipped with bevel gear disks, and the main motor (6) drives the stirring rods (21) and the stirring rods (21) in the primary pool (11) through the differential (24). The driving wheel in the roller set (23); The power input end of the differential (24) is linked with the motor shaft of the main motor (6), and the two power output ends of the differential (24) are respectively connected with the driving wheel and the stirring rod ( 21) Linkage; one of the power output ends is coaxial with the axle of the driving wheel, and the other power output end engages with the bevel gear disk on the rod body of the stirring rod (21) through a bevel gear. The textile printing and dyeing wastewater treatment device according to claims 1-5, characterized in that the stirring rod (21) located in the secondary pool (12) passes through another set of the main motor (6) and the difference The two power output ends of the differential (24) are driven by the speed controller (24), one end is linked with the bevel gear disk of the stirring rod (21) in the secondary tank (12), and the other end is connected with the primary tank ( The bevel gear plate of the stirring rod (21) in 11) is linked. The textile printing and dyeing wastewater treatment device according to claim 1-6, characterized in that the upper ends of the two stirring rods (21) pass through the plate body of the main support plate (22) and extend to the main The upper part of the supporting plate (22); the upper surface of the main supporting plate (22) corresponds to the upper end of the stirring rod (21) provided with a locking mechanism (7), the locking mechanism includes two arc-shaped hoop bodies, The hoop body is arranged on both sides of the upper end of the stirring rod (21), and both sides of the hoop body are provided with ear plates, the ear plates are threadedly connected with the adjusting screw rod, and the adjusting screw rod is connected with the motor shaft of the auxiliary motor. The textile printing and dyeing wastewater treatment device according to claims 1-7, characterized in that the bottom of the sedimentation tank (13) is a cone shape, and the end of the cone shape with a smaller area is the bottom end. The textile printing and dyeing wastewater treatment device according to claim 2, characterized in that, an annular partition (131) is horizontally arranged in the middle of the inner side wall of the sedimentation tank (13), and the partition is close to the center of the sedimentation tank (13). An inner baffle (132) is vertically arranged on one side of the slab, and the inner baffle (132) is also ring-shaped. The side walls of the sedimentation tank (13) and the upper part of the inner baffle (132) are provided with a number of gaps, and the gaps Circumferential array distribution.

Images