CN116655074A - Landfill leachate treatment device - Google Patents

Abstract

The invention relates to a treatment device for landfill leachate, which includes a box body, a stirring mechanism and a separation mechanism located in the box body, and a treatment mechanism for receiving the separated liquid. cylinder, wherein the top of the cylinder is provided with a cover plate for fixing the motor 1, and the rotating shaft of the motor 1 is provided with a stirring paddle located in the box; the separation mechanism includes a primary separation assembly and a secondary separation assembly, wherein the primary separation The assembly includes orifice plates located on both sides of the box. The orifice plates are driven by hydraulic rods. The corresponding top ends of the two groups of orifice plates are connected by a braided mesh layer that is close to the inner wall of the box, and the back of the middle of the braided mesh layer is It is fixedly connected with the inner wall of the box; the bottom of the box is covered with a collection tank, wherein the bottom of the side wall of the box is provided with a communication port connected with the collection tank, and the bottom of the box is also provided with a storage tank connected to the collection tank through a communication pipe liquid tank. The invention has simple structure and convenient use.

Description

A landfill leachate treatment device

technical field

The invention relates to the technical field of leachate treatment, in particular to a landfill leachate treatment device.

Background technique

Landfill leachate refers to the moisture contained in the garbage itself in the landfill, the rain and snow water and other moisture entering the landfill, deducting the saturated water holding capacity of the garbage and the covering soil, and passing through the garbage layer and the covering soil. A high concentration of organic wastewater.

The existing landfill leachate contains a large amount of organic wastewater with high concentration. In the process of treating landfill leachate, it is necessary to treat the solid and liquid in the landfill leachate at the same time. Usually, the solid and liquid treatment will be carried out simultaneously. Treatment, because the solid and liquid treatment use different chemicals, a large amount of chemicals will be wasted, resulting in a waste of resources, and because the solid and liquid treatment time is different, the efficiency of landfill leachate treatment is low. For this reason, there are such A high-efficiency biological treatment device for landfill leachate with the patent No. CN113461254B is used to solve the above problems, but the device has the following defects in use, such as: it is only filtered by the filter screen under the influence of liquid gravity, and then the solid-liquid separation is realized. When the solid-liquid separation is not complete, a large amount of liquid will be discharged along with the solid, which will affect the solid-liquid separation effect and efficiency.

Contents of the invention

The object of the present invention is to provide a landfill leachate treatment device.

Technical problem of the present invention is mainly solved by following technical scheme:

A landfill leachate treatment device, including a box body, a stirring mechanism and a separation mechanism located in the box body, and a treatment mechanism for receiving the separated liquid:

Described agitating mechanism comprises the cylinder that is fixed on the casing top wall by rolling bearing 1, wherein the cover plate that fixes motor 1 is arranged on the top of cylinder, and the rotating shaft of motor 1 is provided with the stirring paddle that is positioned at casing, and described A gear ring is also arranged on the cylinder above the box body, and a block is embedded in one of the tooth grooves of the gear ring, wherein the block is driven by the electric push rod I;

The separation mechanism includes a primary separation assembly and a secondary separation assembly, wherein the primary separation assembly includes orifice plates located on both sides of the box, the orifice plates are driven by hydraulic rods, and the corresponding top ends of the two sets of orifice plates are passed through tight The woven mesh layer attached to the inner wall of the box is connected, and the back of the middle part of the woven mesh layer is fixedly connected with the inner wall of the box;

The bottom of the box is covered with a collection tank, wherein the bottom of the side wall of the box is provided with a communication port that communicates with the collection tank, and the bottom of the box is also provided with a liquid storage tank, and the connection between the liquid storage tank and the collection tank connected, the secondary separation assembly includes a standpipe located in the liquid storage tank and connected between the top and the bottom of the tank, wherein the bottom end of the standpipe is sealed and installed with a motor II, and the motor II is provided with a shaft passing through the standpipe And extend to the positive and negative screw rods in the box. The bottom end of the rotating shaft is provided with a rolling bearing II that fixes the top of the positive and negative screw rods. The positive and negative screw rods are also screwed with two sets of pressure plates located in the vertical pipe, and the upper pressure plate The bottom is provided with a limit rod that is close to the inner wall of the vertical pipe. The bottom end of the vertical pipe is higher than the bottom level of the liquid storage tank. A slag discharge port located below the pressure plate is provided on the side wall of the bottom of the vertical pipe, and the slag discharge The side wall of the vertical pipe above the mouth is a mesh structure, and the side wall of the liquid storage tank is provided with an inlet and outlet facing the slag discharge port, and a filter screen connected to the vertical pipe is also arranged in the liquid storage tank, and the filter screen It is located below the slag outlet and the inlet and outlet.

Preferably, the cross-section of the vertical pipe opening is rectangular, wherein the size of the pressure plate is adapted to the size of the vertical pipe opening, and the pressure plate is also provided with a screw hole screwed with the positive and negative screw rods, and the height of the top of the pressure plate is from the middle to the The edge direction gradually decreases.

Preferably, the bottom end of the rotating shaft is provided with a groove for fixing the rolling bearing II, wherein the distance between the upper pressing plate and the rotating shaft is less than the length of the limit rod, and the bottom end of the limit rod is bent toward the middle of the standpipe with an arc shape guide.

Preferably, the stirring paddle is located in the opening formed between the orifice plate and the braided mesh layer, wherein the box body is a barrel-shaped structure, the orifice plate is an arc-shaped structure and is closely attached to the inner wall of the box, and the braided mesh layer Rubber reinforcing ribs are arranged on the side wall of the layer along its arc length direction.

Preferably, a fixed cylinder corresponding to the slag discharge port is provided on the outside of the vertical pipe, wherein the position of the fixed cylinder is opposite to that of the slag discharge port, and one end of the fixed cylinder extends to the outside of the liquid storage tank, and an electric pusher is arranged inside the fixed cylinder. Rod II, and the output shaft of the electric push rod II is provided with a mounting plate, wherein one end of the mounting plate is provided with multiple groups of ejector rods that can slide into the opening of the vertical pipe, and the side wall of the vertical pipe is provided with a socket for accommodating the end of the ejector rod Through holes, where multiple sets of ejector rods and positive and negative screw rods are staggered.

Preferably, feed pipes are provided on both sides of the top wall of the box, wherein the bottom end of the feed pipe extends to the top of the box between two groups of orifice plates.

The beneficial effects of the present invention are: the present invention performs multi-stage solid-liquid separation on the material through the primary separation component and the secondary separation component to improve the separation effect, and at the same time performs preliminary solid-liquid separation on the material in the box inside the stirring mechanism In order to improve the use value of the box, at the same time, the stirring mechanism that can change the position will not affect the solid-liquid separation work of the primary separation component.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the top view of casing among the present invention;

Fig. 3 is an enlarged view of the casing in Fig. 1;

Fig. 4 is a partially enlarged view of the secondary separation assembly in Fig. 1 .

Among the figure: 1, casing, 2, stirring mechanism, 21, rolling bearing 1, 22, cylinder, 23, cover plate, 24, motor 1, 25, rotating shaft, 26, stirring paddle, 27, ring gear, 3, Separation mechanism, 31, primary separation assembly, 311, orifice plate, 312, hydraulic rod, 313, braided mesh layer, 32, secondary separation assembly, 321, standpipe, 322, motor II, 323, positive and negative screw rods, 324, rolling bearing II, 325, pressure plate, 326, limit rod, 327, slag outlet, 328, import and export, 329, filter screen, 4, block, 5, electric push rod I, 6, collection tank, 7, Connecting port, 8, liquid storage tank, 9, connecting pipe, 10, fixed cylinder, 11, electric push rod II, 12, ejector rod, 13, feeding pipe.

Detailed ways

The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

A landfill leachate treatment device, including a box body 1, a stirring mechanism 2 and a separation mechanism 3 located in the box body 1, and a treatment mechanism for receiving separated liquid:

The stirring mechanism 2 includes a cylinder 22 fixed on the top wall of the casing 1 by a rolling bearing 121, wherein the top of the cylinder 22 is provided with a cover plate 23 for fixing the motor 124, and the rotating shaft 25 of the motor 124 is provided with a The stirring paddle 26 in 1, the cylinder 22 above the box body 1 is also provided with a gear ring 27, one of the tooth grooves of the gear ring 27 is embedded with a block 4, wherein the block 4 is driven by the electric push rod I5 Drive; prevent the stirring mechanism 2 from driving the cylinder 22 to rotate on the rolling bearing 121 during work by blocking the gear ring 27 by the block 4, thereby affecting the problem that the stirring mechanism 2 stirs the product in the casing 1.

The separation mechanism 3 includes a primary separation assembly 31 and a secondary separation assembly 32, wherein the primary separation assembly 31 includes orifices 311 located on both sides of the box body 1, and the orifices 311 are driven by a hydraulic rod 312, and the two The corresponding top ends of the orifice plates 311 are connected by a braided mesh layer 313 that is closely attached to the inner wall of the box body 1, and the back of the middle of the braided mesh layer 313 is fixedly connected with the inner wall of the box body 1;

The bottom of the box body 1 is covered with a collection tank 6, wherein the bottom of the side wall of the box body 1 is provided with a communication port 7 communicating with the collection tank 6, and the bottom of the box body 1 is also provided with a liquid storage tank 8, the liquid storage tank 8 It is connected with the collection tank 6 through a communication pipe 9, and the secondary separation assembly 32 includes a vertical pipe 321 located in the liquid storage tank 8 and connected to the middle of the bottom of the tank body 1 at the top, wherein the bottom end of the vertical pipe 321 is sealed and sealed. A motor II322 is installed, and the motor II322 is provided with a positive and negative screw rod 323 passing through the standpipe 321 and extending into the box body 1, and the bottom end of the rotating shaft 25 is provided with a rolling bearing II324 fixing the top of the positive and negative screw rod 323, Wherein the positive and negative screw rods 323 are also screwed with two sets of pressure plates 325 located in the vertical pipe 321, and the bottom of the upper pressure plate 325 is provided with a limit rod 326 that is close to the inner wall of the vertical pipe 321, and the bottom of the vertical pipe 321 It is higher than the horizontal plane of the bottom of the liquid storage tank 8, wherein the side wall of the bottom of the vertical pipe 321 is provided with a slag discharge port 327 located below the pressure plate 325, and the side wall of the vertical pipe 321 above the slag discharge port 327 is a mesh structure. The side wall of the liquid tank 8 is provided with an inlet and outlet 328 facing the slag discharge port 327, wherein the liquid storage tank 8 is also provided with a filter screen 329 connected to the vertical pipe 321, and the filter screen 329 is located between the slag discharge port 327 and the inlet and outlet. 328 below.

In this embodiment, the cross-section of the opening of the vertical pipe 321 is rectangular, and the size of the pressing plate 325 matches the size of the opening of the vertical pipe 321, so that the pressing plate 325 does not rotate when it moves up and down in the vertical pipe 321, and the pressing plate 325 There are also screw holes screwed with the positive and negative screw rods 323, and the height of the top of the pressure plate 325 gradually decreases from the middle to the edge direction so that impurities or liquids on the top surface of the plate 325 flow down along its slope.

In the above process, the bottom end of the positive and negative screw rod 323 is fixed by the bottom sealing end of the standpipe 321, and the top end of the positive and negative screw rod 323 is fixed by the rolling bearing II324 to improve its stability, and the positive and negative screw rod 323 is driven on the pressing plate by the motor II322. Rotate in the screw hole in 325 to adjust the distance between two sets of pressure plates 325, so that it moves up and down, so as to open the top opening of the vertical pipe 321 to facilitate the inflow of materials in the box body 1, and to control the material in the vertical pipe 321. Extrusion is performed so that it performs solid-liquid separation work.

In this implementation, the bottom end of the rotating shaft 25 is provided with a groove for fixing the rolling bearing II324, wherein the distance between the upper pressing plate 325 and the rotating shaft 25 is smaller than the length of the limit rod 326, and the bottom end of the limit rod 326 faces the direction of the middle of the vertical tube 321 The bend has a curved guide. So that when the upper pressing plate 325 moves up and contacts the bottom end of the rotating shaft 25, the bottom end of the limit rod 326 is still positioned in the opening of the standpipe 321 and is held against by it, preventing the forward and reverse screw rod 323 from driving the upper pressing plate 325 to move downward. There is a problem that it cannot be well aligned with the opening of the standpipe 321 and smoothly slide into the opening of the standpipe 321 due to the rotation.

In this embodiment, the stirring paddle 26 is located in the opening formed between the orifice plate 311 and the woven mesh layer 313, wherein the box body 1 is a barrel-shaped structure, and the orifice plate 311 is an arc-shaped structure and is closely attached to the inner wall of the box body 1 On the side wall of the braided mesh layer 313, rubber reinforcing ribs are provided along its arc length. The braided mesh layer 313 is tightly attached to the inner wall of the box body 1 through the toughness of the reinforcing ribs to prevent it from affecting the normal operation of the stirring mechanism 2. At the same time, the reinforcing ribs are also conducive to its restoration to its original shape after being deformed under pressure.

In this embodiment, a fixed cylinder 10 corresponding to the slag discharge port 327 is provided on the outside of the vertical pipe 321, wherein the position of the fixed cylinder 10 is opposite to that of the slag discharge port 327, and one end of the fixed cylinder 10 extends to the outside of the liquid storage tank 8. An electric push rod II11 is arranged in the fixed cylinder 10, and a mounting plate is arranged on the output shaft of the electric push rod II11, wherein one end of the mounting plate is provided with a plurality of groups of ejector rods 12 that can slide into the opening of the vertical pipe 321, and the vertical pipe The side wall of 321 is provided with a through hole for accommodating the end of the ejector rod 12 , wherein multiple groups of ejector rods 12 and the forward and reverse screw rods 323 are arranged in a staggered manner.

In this embodiment, feed pipes 13 are provided on both sides of the top wall of the box body 1 , wherein the bottom end of the feed pipe 13 extends to the inner top of the box body 1 between two sets of orifice plates 311 . The two groups of feed pipes 13 resist the moving orifice plate 311, thereby limiting the narrowing range of the distance between the two groups of orifice plates 311, preventing the excessive shrinkage of the distance between the two groups and excessively squeezing the flocs in the box body 1, resulting in It cannot flow into the standpipe 321 smoothly, and over-squeezing the flocs will also cause greater resistance to the orifice 311, which is not conducive to improving the stability and safety of the primary separation component 31, but also its processing efficiency. make an impact.

The working principle of the present invention: when the landfill leachate enters the inside of the box body 1 through the feed pipe 13, the upper pressing plate 325 seals the top opening of the vertical pipe 321 to prevent the materials in the box body 1 from flowing into the vertical pipe 321, wherein the motor I24 drives the stirring paddle 26 to rotate through the rotating shaft 25 to improve the efficiency of the fusion of landfill leachate and medicine in the box body 1. When the landfill leachate and medicine are fused, turn off the motor I24. At this time, the electric push rod I5 drives the block 4 from the tooth The ring 27 slides out of the tooth groove, so that the entire stirring mechanism 2 can rotate on the rolling bearing I21 under the influence of an external force, so as to change the direction of the stirring paddle 26, and then the hydraulic rod 312 drives the orifice 311 to move to reduce the size of the two groups. The distance between the orifice plates 311 further drives the braided mesh layer 313 to deform, and then the liquid and flocs located between the two are squeezed through the orifice plate 311 with the reduced space, so that the liquid passes through the aperture of the orifice plate 311 and the weaving. The net layer 313 leaks out through the aperture, and finally enters the collection tank 6 through the communication port 7, and the communication pipe 9 flows into the liquid storage tank 8, and finally discharges into the processing mechanism, so as to achieve the purpose of preliminary solid-liquid separation.

In the above process, when the gap between the two groups of orifice plates 311 shrinks, its inner wall will contact the corresponding end of the stirring paddle 26, and then squeeze it, so that the stirring paddle 26 will drive the circle through the rotating shaft 25 and the cover plate 23 after being pressed. The cylinder 22 rotates on the rolling bearing I21, so as to change the direction of the stirring paddle 26 so that it is placed forward and backward, so that the stirring mechanism 2 will not affect the movement of the orifice plate 311 to separate the solid and liquid of the product, so that the product can be separated by The primary separation component 31 can perform preliminary solid-liquid separation on the product in the box body 1 .

At the same time, the positive and negative screw rod 323 can also be driven by the motor II322 to rotate in the screw hole in the pressure plate 325, so as to drive the upper pressure plate 325 to slide into the box body 1, and the lower pressure plate 325 to slide into the vertical pipe 321 above the slag discharge port 327. , so as to expand the distance between the two groups of pressing plates 325. In this process, due to the rectangular opening of the vertical pipe 321 and the influence of the limit rod 326, the pressing plate 325 will not rotate with the positive and negative screw rods 323 but only move up and down. At this time, the flocs and residual liquid after preliminary solid-liquid separation in the box body 1 can smoothly enter the vertical pipe 321 through the bottom space of the upper pressing plate 325, and then the positive and negative screw rods 323 drive the two sets of pressing plates 325 to move to shrink The distance between the two, and then squeeze the flocs and liquid in the vertical pipe 321 again to achieve the purpose of solid-liquid separation, and the liquid is leaked to the liquid storage tank 8 through the holes on the side wall of the vertical pipe 321 Internal discharge, wherein when the separated solids need to be discharged, the positive and negative screw rod 323 drives the pressing plate 325 to move to expand the distance between the two sets of pressing plates 325, so that the lower pressing plate 325 moves to the bottom of the standpipe 321, and the upper pressing plate 325 moves to In the box body 1, at this time, the push rod 12 can be driven by the electric push rod II11 to slide into the vertical pipe 321 to squeeze and eject the solid matter, so that it can be discharged through the slag discharge port 327 and the opened inlet and outlet 328 at this time. Or people take out the solid matter in the standpipe 321 through the import and export 328 and the slag outlet 327.

The present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention, and cannot be considered as limiting the implementation scope of the present invention. All equivalent changes and improvements made according to the application scope of the present invention shall still belong to the scope covered by the patent of the present invention.

Claims (6)

1. The utility model provides a landfill leachate treatment device, includes box, is located rabbling mechanism and separating mechanism and accepts the processing mechanism of liquid after the separation in the box, its characterized in that:

the stirring mechanism comprises a cylinder fixed on the top wall of the box body through a rolling bearing I, wherein a cover plate for fixing a motor I is arranged at the top of the cylinder, a stirring paddle positioned in the box body is arranged on a rotating shaft of the motor I, a toothed ring is further arranged on the cylinder above the box body, a clamping block is embedded in one tooth slot of the toothed ring, and the clamping block is driven by an electric push rod I;

the separation mechanism comprises a primary separation assembly and a secondary separation assembly, wherein the primary separation assembly comprises pore plates positioned at two sides in the box body, the pore plates are driven by a hydraulic rod, the corresponding top ends of the two groups of pore plates are connected through a woven mesh layer tightly attached to the inner wall of the box body, and the back surface of the middle part of the woven mesh layer is fixedly connected with the inner wall of the box body;

the bottom of the box body is sleeved with a circle of collecting groove, the bottom of the side wall of the box body is provided with a communication port communicated with the collecting groove, the bottom of the box body is also provided with a liquid storage box, the liquid storage box is connected with the collecting groove through a communication pipe, the secondary separation assembly comprises a vertical pipe which is positioned in the liquid storage box and is communicated with the middle of the bottom of the box body at the top end, the bottom end of the vertical pipe is provided with a motor II in a sealing way, the motor II is provided with a positive and negative screw rod which penetrates through the vertical pipe and extends into the box body, the bottom end of the rotating shaft is provided with a rolling bearing II for fixing the top end of the positive and negative screw rod, the positive and negative lead screw is further connected with two groups of pressing plates positioned in the vertical pipe in a threaded manner, the bottom of the pressing plate above the pressing plate is provided with a limit rod clung to the inner wall of the vertical pipe, the bottom end of the vertical pipe is higher than the horizontal plane of the bottom of the liquid storage tank, a slag discharging port positioned below the pressing plate is arranged on one side wall of the bottom of the vertical pipe, the side wall of the vertical pipe above the slag discharging port is of a net structure, an inlet and an outlet which are right opposite to the slag discharging port are formed in the side wall of the liquid storage tank, a filter screen connected with the vertical pipe is further arranged in the liquid storage tank, and the filter screen is positioned below the slag discharging port and the inlet and the outlet.

2. A landfill leachate treatment apparatus according to claim 1, wherein: the cross section of the vertical pipe opening is rectangular, the size of the pressing plate is matched with the size of the vertical pipe opening, a screw hole which is in threaded connection with the positive and negative screw rod is further formed in the pressing plate, and the top height of the pressing plate is gradually reduced from the middle to the edge direction.

3. A landfill leachate treatment apparatus according to claim 1, wherein: the bottom end of the rotating shaft is provided with a groove for fixing the rolling bearing II, the distance between the upper pressing plate and the rotating shaft is smaller than the length of the limiting rod, and the bottom end of the limiting rod is bent towards the middle of the vertical pipe to form an arc-shaped guide part.

4. A landfill leachate treatment apparatus according to claim 1, wherein: the stirring paddle is positioned in an opening formed between the pore plate and the woven mesh layer, the box body is of a barrel-shaped structure, the pore plate is of an arc-shaped structure and is clung to the inner wall of the box body, and rubber reinforcing ribs are arranged on the side wall of the woven mesh layer along the arc length direction of the side wall of the woven mesh layer.

5. A landfill leachate treatment apparatus according to claim 1, wherein: the automatic slag discharging device is characterized in that a fixed cylinder corresponding to the slag discharging port is arranged on the outer side of the vertical pipe, the position of the fixed cylinder is opposite to the position of the slag discharging port, one end of the fixed cylinder extends to the outer side of the liquid storage tank, an electric push rod II is arranged in the fixed cylinder, a mounting plate is arranged on an output shaft of the electric push rod II, a plurality of groups of ejector rods capable of sliding into the opening of the vertical pipe are arranged at one end of the mounting plate, through holes for accommodating the tail ends of the ejector rods are formed in the side wall of the vertical pipe, and the plurality of groups of ejector rods are staggered with the positive and negative screw rods.

6. A landfill leachate treatment apparatus according to claim 1, wherein: the feed pipes are arranged on two sides of the top wall of the box body, and the bottom ends of the feed pipes extend to the top in the box body between the two groups of pore plates.