CN110252020B - Sand making wastewater treatment device and treatment method - Google Patents

Abstract

The invention discloses a sand making wastewater treatment device, which comprises a storage tank, a rotating shaft, an eccentric gear, a motor, a driving gear, a filter bag and an annular baffle, wherein the top of the storage tank is provided with a feed inlet, the rotating shaft is connected to the top of the storage tank through an eccentric bearing, the eccentric gear is sleeved on the rotating shaft and positioned outside the storage tank, the motor is fixed to the top of the storage tank, the driving gear is coaxially fixed to the output end of the motor and meshed with the eccentric gear, the filter bag is fixed to the rotating shaft, the annular baffle is fixed to the inner surface of the top of the storage tank, the annular baffle and the top of the storage tank enclose an annular groove, the filter bag is positioned in the annular groove, and the length of the filter bag is larger than the inner radius of the annular baffle. The filter bag intermittently impacts the annular baffle plate in the swing process, the suspended matters accumulated in the filter bag are easy to scatter under the eccentric vibration and the reaction force of the annular baffle plate, the hardening phenomenon is not easy to occur, the filter efficiency is not influenced by the suspended matters hardening layer, the mechanical filtering mode is reserved, and the process is simple. The sand making wastewater treatment method can effectively avoid hardening of suspended matters, and has high treatment efficiency and simple process.

Description

Sand making wastewater treatment device and treatment method

Technical Field

The invention relates to the field of building material processing, in particular to a sand making wastewater treatment device and a treatment method.

Background

Sand making wastewater refers to wastewater generated in the sand making process of sand making enterprises, sand is one of basic materials of buildings, and along with the increasing demand of domestic sand, natural sand faces the pressure of resource reduction and environmental protection, and the machine-made sand is used as an important source of construction sand in the building material market. The machine-made sand can be widely applied to concrete, mortar and products, has better market prospect in modern construction engineering, gradually replaces natural sand in quality and quantity, and is one of the marks of the artificial sand production line entering the new development period.

The suspended matters of main pollution factors of the sand making wastewater form a large amount of slurry water due to the large content of suspended matters in the wastewater. The treatment of sand washing waste water mainly reduces suspended matters in the waste water, namely mud-water separation is carried out, mud and sand are separated out through a physical method, because the sand washing waste water has larger sediment content, fine sand is precipitated by a natural sedimentation method of a primary sedimentation tank, and then the solid content entering a dosing flocculation link is controlled, so that the aim of reducing the cost investment of medicaments is fulfilled, for example, the Chinese patent application No. 2015110194864 discloses a sewage treatment process and a sewage treatment system, solid-liquid effective separation is realized through a flocculation precipitation method, clear liquid is returned to a clean water tank for continuous use after secondary oxidation treatment, the solid precipitate is dehydrated through a filter press to be made into mud cakes, and the mud cakes are conveniently transported, and the filter press dehydration process is used for collecting backwater and returning the backwater to a backwater sedimentation tank for recycling. The sewage treatment process has the advantages that the flocculation and precipitation effects of solid particles are good, the solid and liquid separation is thorough, the solid particles are made into mud cakes and are convenient to transport, the treated clear liquid can be recycled, and zero pollution and zero discharge are truly realized. In view of the foregoing, there is a need for a sand making wastewater treatment apparatus and treatment method that avoid hardening and that are simple in process.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a sand making wastewater treatment device and a sand making wastewater treatment method which are capable of avoiding hardening and simple in process.

The invention adopts the following technical scheme:

the utility model provides a sand making effluent treatment plant, including the storage tank that the top is equipped with the feed inlet, still include through eccentric bearing connect in the pivot at storage tank top, the cover locate the pivot and be located the eccentric gear outside the storage tank, be fixed in the motor at storage tank top, coaxial be fixed in motor output and with eccentric gear engagement's driving gear, be fixed in the filter bag of pivot and be fixed in the annular baffle of storage tank top internal surface, annular baffle encloses into the ring channel with the storage tank top, the filter bag is located the ring channel, the length of filter bag is greater than annular baffle's inner radius.

In one embodiment of the present invention, the filter bag is made of nylon.

In one specific embodiment of the invention, a balancing weight is arranged in the filter bag.

In one embodiment of the present invention, the weight is spherical.

In one embodiment of the invention, the surface of the balancing weight is provided with a plurality of grooves.

In one embodiment of the invention, the filter bag is a round filter bag.

The invention also provides a sand making wastewater treatment method using the sand making wastewater treatment device, which comprises the following steps:

s1, introducing sewage to be treated into a filter bag through a feed inlet of a storage tank;

s2, the starting motor drives the driving gear to rotate, the driving gear drives the eccentric gear to rotate, and the eccentric gear drives the rotating shaft to eccentrically rotate, so that the filter bag is driven to eccentrically swing;

s3, intermittently impacting the filter bag on the inner wall of the annular baffle until the water in the filter bag is dried.

Compared with the prior art, the invention has the beneficial effects that:

the filter bag on the rotating shaft is driven to swing eccentrically through the motor, the driving gear and the eccentric gear, the filter bag intermittently impacts the annular baffle plate in the swinging process, suspended matters accumulated in the filter bag are easy to scatter under the eccentric shaking and the reaction force of the annular baffle plate, the hardening phenomenon is not easy to occur, the filter bag is not used for forming layers of suspended matters to influence the filtering efficiency, the mechanical filtering mode is reserved, and the process is simple. The sand making wastewater treatment method can effectively avoid hardening of suspended matters, and has high treatment efficiency and simple process.

Drawings

FIG. 1 is a schematic diagram of a sand making wastewater treatment device.

Fig. 2 is a schematic structural diagram of a counterweight.

10, a storage tank; 101. a feed inlet; 20. an eccentric bearing; 30. a rotating shaft; 40. a motor; 50. an eccentric gear; 60. a drive gear; 70. a filter bag; 80. an annular baffle; 90. balancing weight; 901. a groove.

Detailed Description

Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-2, the present embodiment provides a sand making wastewater treatment device, including a storage tank 10 with a feed inlet 101 at the top, and further including a rotating shaft 30 connected to the top of the storage tank 10 through an eccentric bearing 20, an eccentric gear 50 sleeved on the rotating shaft 30 and located outside the storage tank 10, a motor 40 fixed to the top of the storage tank 10, a driving gear 60 coaxially fixed to the output end of the motor 40 and meshed with the eccentric gear 50, a filter bag 70 fixed to the rotating shaft 30, and an annular baffle 80 fixed to the inner surface of the top of the storage tank 10, wherein the annular baffle 80 and the top of the storage tank 10 enclose an annular groove, the filter bag 70 is located in the annular groove, and the length of the filter bag 70 is greater than the inner radius of the annular baffle 80.

The pore size of the filter bag 70 is selected according to the particle size of suspended matter in the sand making wastewater.

The working principle and the processing method thereof are as follows:

s1, introducing sewage to be treated into a filter bag 70 through a feed inlet 101 of a storage tank 10;

s2, the motor 40 is started to drive the driving gear 60 to rotate, the driving gear 60 drives the eccentric gear 50 to rotate, and the eccentric gear 50 drives the rotating shaft 30 to eccentrically rotate, so that the filter bag 70 is driven to eccentrically swing, and the filter bag 70 is adopted, so that the swing amplitude is large, the separation of suspended matters and water is realized, and the vibration generated by the eccentric swing can effectively reduce the accumulation hardening of suspended matters;

s3, intermittently impacting the filter bag 70 on the inner wall of the annular baffle 80, and comprehensively performing eccentric swing, wherein in the swing process, the positions of the filter bag 70 impacting the annular baffle are different due to eccentric movement of the rotating shaft 30, the movement path of the filter bag 70 is random movement, suspended matters are prevented from hardening by utilizing the impact, and after a small amount of suspended matters are accumulated into layers, the reaction force of the annular baffle 80 on the filter bag 70 can enable the hardened layers to be broken and separated until moisture in the filter bag 70 is dried.

In order to improve the strength of the filter bag 70, the filter bag 70 is made of nylon, the filter bag 70 made of nylon has high warp and weft strength, filter holes are not easy to deform, the filter bag 70 is not easy to break in eccentric swing and process, and nylon is the material with the best wear resistance in engineering plastics, and is not easy to wear and break when in impact friction with the annular baffle 80.

To increase the overall weight of the filter bag 70, the centrifugal force is increased, and a weight 90 is provided in the filter bag 70.

To facilitate rolling of the weight 90 during eccentric whipping, the plate layers on the filter bag 70 are scraped to reduce binding, and the weight 90 is spherical.

To increase the friction between the balancing weight 90 and the filter bag 70, a plurality of grooves 901 are formed on the surface of the balancing weight 90.

The filter bag 70 is a round filter bag 70, and the balancing weight 90 rolls more easily than a flat filter bag 70.

The above embodiments are only some of the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention, and any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to fall within the scope of the present invention as claimed.

Claims (2)

1. The sand making wastewater treatment device comprises a storage tank with a feed inlet at the top, and is characterized by further comprising a rotating shaft connected to the top of the storage tank through an eccentric bearing, an eccentric gear sleeved on the rotating shaft and positioned outside the storage tank, a motor fixed to the top of the storage tank, a driving gear coaxially fixed to the output end of the motor and meshed with the eccentric gear, a filter bag fixed to the rotating shaft, and an annular baffle fixed to the inner surface of the top of the storage tank, wherein the annular baffle and the top of the storage tank enclose an annular groove, the filter bag is positioned in the annular groove, and the length of the filter bag is larger than the inner radius of the annular baffle; the filter bag is internally provided with a balancing weight which is spherical, the surface of the balancing weight is provided with a plurality of grooves, the filter bag is a round filter bag, and the filter bag is made of nylon.

2. A method for treating wastewater from sand production, characterized by using the apparatus for treating wastewater from sand production according to claim 1, comprising the steps of:

s1, introducing sewage to be treated into a filter bag through a feed inlet of a storage tank;

s2, a starting motor drives a driving gear to rotate, the driving gear drives an eccentric gear to rotate, and the eccentric gear drives a rotating shaft to eccentrically rotate, so that a filter bag is driven to eccentrically swing;

s3, intermittently impacting the filter bag on the inner wall of the annular baffle until the water in the filter bag is dried.