CN203253523U - Soil wet method vibration screening device - Google Patents

Abstract

The utility model discloses a soil wet method vibrating screening equipment, which belongs to the field of soil screening equipment. It includes a base, a screen box, a discharge port, a support device and an eccentric exciter. The support device is arranged on the base, and the upper part of the support device fixes the screen box. vibrator, the eccentric vibrator is driven by a motor to vibrate and screen, and the discharge port is set on one side of the screen box; it also includes a spray water pipeline, and the spray pipe of the spray water pipeline is located at Directly above the screen box; the screens of the screen box from top to bottom are: the first layer of screen mesh, the second layer of screen mesh and the third layer of screen mesh, and the screen mesh of the screen box The shell is made as a whole and fixed on the supporting device. This equipment can realize the separation of soil stones, gravel and soil at all levels without generating dust, and the separated materials will hardly produce water.

Description

A kind of soil wet vibrating screening equipment

technical field

The utility model belongs to the field of soil screening equipment, and more specifically relates to a soil wet vibration screening equipment. the

Background technique

Due to the hard texture and compact structure of stones, bricks, concrete blocks, and gravel, it is difficult for pollutants in the soil to enter the interior of these substances and only adhere to the surface of these substances. When the soil in the polluted site is repaired by leaching, the soil is first classified according to the particle size. During the grading process, most of the pollutants attached to the surface of stones, bricks, concrete blocks, and gravel are transferred to the muddy water below the screening equipment by spraying and washing.

The traditional vibrating screen is a kind of vibrating screening mechanical equipment suitable for dry screening of fine-grained and difficult-to-sieve materials. The vibrating screen has the technological characteristics of large amplitude, high vibration intensity, low frequency and elastic screen surface. During the working process, the maximum opening ratio is always maintained, so that the screening efficiency is high, the processing capacity is large, the replacement of the sieve plate is convenient, and the cost is reduced. The super large screen surface and powerful processing capacity of the vibrating screen can meet the production needs of industrial sites.

The linear reciprocating vibrating screen uses the vibration of the vibrating motor as the vibration source, so that the material is thrown up on the screen, and at the same time moves forward in a straight line. The oversize and undersize of several specifications are discharged from their respective outlets. It has low energy consumption, high output, simple structure, easy maintenance, fully enclosed structure, no dust spillage, automatic discharge, and is more suitable for assembly line operations.

Due to the above characteristics of the linear reciprocating vibrating screen, it becomes the first choice equipment for ex-situ restoration of soil by leaching process. In the rinsing process, there are special requirements for the aperture of the vibrating screen, and there are also strict requirements for the discharge of the screened material and the running, popping, dripping, and leaking during discharge. However, due to the linear reciprocating vibrating screen The separated materials are dry materials, and most of the previously used environments and users have almost no requirements for the discharge of classified materials, resulting in the low frequency of vibrating screens used in the wet separation process of the environmental protection industry (including the soil remediation industry).

Chinese patent application number: 201020601482.3, patent name: a leaching repair equipment for contaminated soil, although this equipment can also be used for soil separation, its disadvantage is that the separation effect on soil is poor, and it is not suitable for soil wet screening . the

Contents of the invention

1. Technical problems to be solved

Aiming at the fact that the linear reciprocating vibrating screen in the prior art cannot meet the requirements for soil wet screening in the soil remediation and leaching process, the utility model provides a soil wet vibrating screening equipment, which can realize the removal of soil stones There is no separation of dust at all levels during the operation of sand, gravel and soil, and the separated materials will hardly produce water.

2. Technical solution

The purpose of this utility model is achieved through the following technical solutions.

A soil wet vibration screening equipment, which includes a base, a screen box, a discharge port, a support device and an eccentric vibrator, the support device is arranged on the base, and the upper part of the support device fixes the screen box, The bottom of the screen box is provided with an eccentric vibrator, and the eccentric vibrator is driven by a motor to vibrate and screen. The discharge port is set on one side of the screen box, and the materials of all levels after screening are separated by their respective It is discharged from the discharge port, and it also includes a spray water pipeline, and the spray pipe of the spray water pipeline is located directly above the screen box; the screen mesh of the screen box from top to bottom is as follows: first The first layer of screen mesh, the second layer of screen mesh and the third layer of screen mesh, the shell of the screen box is made as a whole, and fixed on the supporting device, so as not to participate in vibration. This ensures the tightness of the housing to the greatest extent.

Preferably, the discharge port includes a first discharge port, a second discharge port, a third discharge port and a fourth discharge port from top to bottom; the first discharge port, the second discharge port The feed port and the third discharge port are fixedly connected to the first layer of screen net, the second layer of screen screen and the third layer of screen screen respectively, and the fourth discharge port is separated from the screen box and supported independently, which It is because the material in the fourth discharge hopper is muddy water. If the fourth discharge port vibrates with the vibrating screen as a whole, the muddy water will splash out of the hopper, causing running, popping, dripping and leaking. Therefore, the fourth discharging The mouth is separated from the vibrating screen and supported separately to reduce splashing.

Wherein, the length relationship of the four outlets is: the second outlet<the third outlet<the fourth outlet<the first outlet.

Preferably, the aperture of the first layer of sieving mesh is 10 mm, the aperture of the second layer of sieving mesh is 5 mm, and the aperture of the third layer of sieving mesh is 2 mm. The larger the aperture of the screen, the greater the thickness of the screen, and the better the strength of the screen; as the aperture of the screen decreases, the thickness of the screen becomes thinner, and the strength of the screen decreases accordingly. When the vibrating screen is in normal operation, the impact and wear of the material on the screen is very serious. Choosing a suitable screen is the key to ensure the normal and long-term operation of the vibrating screen.

Preferably, the spray pipes of the spray water pipeline are evenly distributed with perforations.

Preferably, the bottom of the second discharge port and the third discharge port is made of a steel wire mesh plate with a mesh size of 2 mm. This is to facilitate the operation when the leaching water carried by the materials in the second discharge port and the third discharge port falls into the fourth discharge port.

3. Beneficial effect

Compared with the prior art, the utility model has the advantages of:

(1) The technology of this utility model classifies the soil through the screen, and divides it into stones above 10 mm, gravels of 2-10 mm, and soil below 2 mm, and the stones and gravels are initially cleaned, and the soil in the soil Most of the pollutants are in the soil, and only a few of the stones and gravel are attached to the surface. In the subsequent process, the stones and gravel can be cleaned to meet the standard discharge, which greatly reduces the load on the treatment of polluted soil and reduces the pollution of soil in the later stage. The cost of treatment; the equipment classifies the soil and then treats it, which greatly reduces the wear and tear on the contaminated soil treatment equipment in the later stage, and increases the service life of the contaminated soil treatment equipment;

(2) Set up a spray pipe at the top of the screening operation of the vibrating screen, and evenly space some small holes on the spray pipe to carry out the washing operation on the material. Under the combined action of screening + spraying, most of the pollutants attached to the surface of stones, bricks, concrete blocks, and gravel are transferred to the muddy water below, which reduces the load on the treated materials after classification, and the treatment process is correspondingly simple , increasing the possibility of engineering realization;

(3) The materials screened by ordinary vibrating screens are dry materials, which cannot be screened by wet methods. This new technology separates the shell of the vibrating screen from the screen in the design, and improves the structure of the discharge port , not only can sieve the soil by wet method, but also solve the phenomenon of running, popping, dripping, leaking and so on;

(4) The material in the new fourth-layer discharge hopper is muddy water. If the fourth-layer discharge hopper vibrates with the vibrating screen as a whole, the muddy water will splash out of the hopper, causing running, popping, dripping and leaking. Therefore, the utility model adopts the technical solution that the fourth layer of the hopper is separated from the vibrating screen as a whole and supported independently, which can effectively reduce the splashing phenomenon.

Description of drawings

Fig. 1 is the structural representation of the equipment of the present utility model.

In the figure: 1. Screen box; 2. Supporting device; 3. Eccentric vibrator; 4. Base; 5. First discharge port; 6. Second discharge port; 6-1. Third discharge port ; 7, the fourth discharge port; 8, spray water pipeline; 9, the first layer of screening net; 10, the second layer of screening net;

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Example 1

A soil wet vibration screening equipment, which includes a base 4, a screen box 1, a discharge port, a support device 2 and an eccentric vibrator 3, the support device 2 is arranged on the base 4, and the upper part of the support device 2 fixes the screen The bottom of the box 1 and the screen box 1 is provided with an eccentric vibrator 3, which is driven by a motor to vibrate and screen, and the discharge port is set on the side of the screen box 1.

SZZ-1250 three-layer vibrating screen was used to wet-separate the soil. The layout of the vibrating screen was as follows: the first layer of screen 9 had an aperture of 10 mm, the second layer of screen 10 had an aperture of 5 mm, and the third layer of screen 10 had an aperture of 5 mm. Layer sieving net 11 apertures are 2 mm. Arrange two spray water pipelines 8 in the working direction of the vibrating screen, as shown in Figure 1, the spray pipe of the spray water pipeline 8 is 300 mm high from the working surface, and the lower surface of the water pipes is opened at an interval of 100 mm and in a direction of 60°. Small holes with a diameter of 4 mm are arranged alternately and separately to facilitate spraying water evenly and covering the working surface of the vibrating screen.

The first outlet 5 of the vibrating screen is firmly welded with the vibrating screen, and is elongated and inclined outwards, so that the stones can be discharged with the vibration of the vibrating screen. The second discharge port 6 and the third discharge port 6-1 of the vibrating screen are gravel discharge ports, which are respectively welded and fixed with the second layer of screening net 10 and the third layer of screening net 11, and the gravel discharge Steel wire mesh panels with an aperture of 2 mm are installed below the outlets to facilitate the water to drain out and drop to the fourth outlet 7 on the fourth floor, that is, the slurry water outlet. The second discharge port 6 is shorter than the third discharge port 6-1, so that the gravel can be aggregated to the third discharge port 6-1 and discharged; the fourth layer of the vibrating screen is separated from the entire vibrating screen. It is supported separately and is longer than the third outlet 6-1, and the edge of the mud water outlet is correspondingly raised to prevent the mud water from splashing out of the outlet when it hits and falls; the whole vibrating screen shell is integrally welded to prevent There are running, popping, dripping, and leaking phenomena.

Using this equipment for wet separation of soil, the separation effect of stones, gravel and mud water is obvious, and the stones and gravel are basically free of water, and irregular stones can also be smoothly discharged with the vibration of the vibrating screen, and the mud water In the case of impacting water flow during the vibrating screen operation, it can also smoothly enter the mud water collection equipment through the corresponding pipeline.

The above schematically describes the present invention and its implementation, which is not restrictive, and what is shown in the drawings is only one of the implementations of the present invention, and the actual structure is not limited thereto. Therefore, if a person of ordinary skill in the art is inspired by it, and without departing from the purpose of the invention, without creatively designing a structure and an embodiment similar to the technical solution, it shall fall within the scope of protection of this patent. the

Claims (5)

1. A soil wet vibration screening equipment, which includes a base (4), a screen box (1), a discharge port, a support device (2) and an eccentric vibrator (3), and the support device ( 2) Set on the base (4), the upper part of the supporting device (2) fixes the screen box (1), and the bottom of the screen box (1) is provided with an eccentric exciter (3), and the eccentric exciter (3) Vibration screening is carried out by driving the motor, and the discharge port is set on one side of the screen box (1), and it is characterized in that it also includes a spray water pipeline (8), and the spray water pipeline (8) The spray pipe is located directly above the screen box (1); the screen mesh of the screen box (1) is as follows from top to bottom: the first layer of screen mesh (9), the second layer of The screening net (10) and the third layer of screening net (11), the casing of the screening box (1) are made as a whole and fixed on the supporting device (2). 2. A kind of soil wet vibration screening equipment according to claim 1, characterized in that, from top to bottom, the discharge port includes the first discharge port (5), the second discharge port ( 6), the third discharge port (6-1) and the fourth discharge port (7); the first discharge port (5), the second discharge port (6), the third discharge port (6 -1) It is fixedly connected with the first layer of screen mesh (9), the second layer of screen mesh (10) and the third layer of screen mesh (11), and the fourth outlet (7) is connected with the screen The box (1) is separated and supported independently, wherein the length relationship of the four discharge ports is: the second discharge port (6) < the third discharge port (6-1) < the fourth discharge port (7) < The first outlet (5). 3. A kind of soil wet vibrating screening equipment according to claim 1 or 2, characterized in that, the aperture of the first layer of screening net (9) is 10 mm, and the second layer of screening net (10 ) aperture is 5 mm, and the aperture of the third layer of screen mesh (11) is 2 mm. 4. The soil wet vibration screening equipment according to claim 3, characterized in that the spray pipes of the spray water pipeline (8) are evenly distributed with perforations. 5. A soil wet vibrating screening equipment according to claim 2, characterized in that the bottoms of the second discharge port (6) and the third discharge port (6-1) have meshes of Made of 2mm steel wire mesh.

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