CN114939525B

CN114939525B - Gravity type soil screening device for soil remediation

Info

Publication number: CN114939525B
Application number: CN202210063627.6A
Authority: CN
Inventors: 郭鑫年; 司海丽; 许泽华; 李百云; 周涛
Original assignee: Agricultural Resource And Environment Institute Ningxia Academy Of Agricultural And Forestry Sciences (ningxia Soil And Plant Nutrition Key Laboratory)
Current assignee: Agricultural Resource And Environment Institute Ningxia Academy Of Agricultural And Forestry Sciences (ningxia Soil And Plant Nutrition Key Laboratory)
Priority date: 2022-01-20
Filing date: 2022-01-20
Publication date: 2023-06-02
Anticipated expiration: 2042-01-20
Also published as: CN114939525A

Abstract

The invention discloses a gravity type soil screening device for soil remediation, which comprises: the shell is symmetrically provided with inserting posts on the front side surface and the rear side surface; a feed hopper mounted on the top surface of the housing; the base is fixedly provided with a supporting frame; the first screening mechanism, the second screening mechanism and the third screening mechanism are arranged in parallel from top to bottom in the shell; the fixing frame is embedded with fixing rods, and triangular rods are connected between the fixing rods; and the mounting frame is fixed on the inner wall of the shell. This gravity type soil screening plant for soil remediation utilizes dead lever, triangular pole and movable rod to constitute the sieve mesh jointly, and dead lever and triangular pole are motionless, and the movable rod reciprocates, realizes pushing out the soil granule of jam in the sieve mesh, guarantees that the sieve mesh takes place to block up the problem, guarantees the screening efficiency of soil, utilizes convex movable rod interception soil, increases the dwell time of soil on screening mechanism, helps improving screening quality.

Description

Gravity type soil screening device for soil remediation

Technical Field

The invention relates to the technical field related to soil remediation equipment, in particular to a gravity type soil screening device for soil remediation.

Background

With the continuous acceleration of the industrialization process, the serious soil pollution is caused by the reasons of unreasonable exploitation of mineral resources and smelting discharge thereof, long-term sewage irrigation and sludge application to soil, atmospheric sedimentation caused by artificial activities, application of chemical fertilizers and pesticides and the like, and the soil pollution in China has threatened the sustainable use of the land resources and the ecological safety of agricultural products.

Soil remediation refers to the use of physical, chemical and biological methods to transfer, absorb, degrade and transform contaminants in soil to reduce their concentration to acceptable levels or to transform toxic and harmful contaminants into harmless substances, during the process of soil screening, soil agglomerations due to the adhesion between soil particles, which results in the soil easily blocking the sieve pores, thereby affecting the normal performance of soil screening.

The chinese patent with the prior bulletin number of CN111715509a discloses a gravity type soil screening device for soil remediation, this technical scheme utilizes the fixed plate of up-and-down motion to drive in preventing stifled needle gets into the sieve mesh of screen cloth, realize the effect of mediation sieve mesh, but when anti-blocking needle is too thin, the soil at sieve mesh edge can't clear away, lead to the mediation effect relatively poor, when anti-blocking needle size is close the sieve mesh, anti-blocking needle pushes partial upper material into the lower floor easily to influence screening effect, and anti-blocking needle collides with the hard thing in the sieve material easily, leads to needle body bending deformation.

Disclosure of Invention

The invention provides a gravity type soil screening device for soil remediation in order to make up market blank.

The invention aims to provide a gravity type soil screening device for soil remediation, which is used for solving the problems that when an anti-blocking needle is too thin, soil at the edge of a sieve hole cannot be cleared, so that the dredging effect is poor, when the size of the anti-blocking needle is close to that of the sieve hole, the anti-blocking needle can easily push part of upper-layer materials into the lower layer, so that the screening effect is affected, and the anti-blocking needle can easily collide with hard materials in the sieve material, so that the needle body is bent and deformed.

In order to achieve the above purpose, the present invention provides the following technical solutions: a gravity type soil screening device for soil remediation, comprising:

the shell, the front and back both sides face of the said shell are symmetrically provided with the inserted column, the said inserted column penetrates the top of the link, the right port department of the said shell has stock guide;

the feeding hopper is arranged on the top surface of the shell, and a disperser is arranged in the feeding hopper;

the base is fixedly provided with a supporting frame, and the top end of the supporting frame is connected with the bottom end of the connecting frame;

the vibrator is arranged in the middle of the outer side surface of the shell and is connected with the second motor through a transmission belt;

the first screening mechanism, the second screening mechanism and the third screening mechanism are arranged in the shell in parallel from top to bottom, and the upper end and the lower end of each of the first screening mechanism, the second screening mechanism and the third screening mechanism are respectively provided with an inserting block and a stop block;

the fixed frame is embedded with fixed rods, triangular rods are connected between the fixed rods, grooves are formed right below the triangular rods, the fixed rods are perpendicular to the triangular rods, the fixed rods are parallel to the movable rods, the fixed rods, the triangular rods and the movable rods form sieve holes together, and the grooves are formed in the top surfaces of the movable rods;

the installation frame is fixed on the inner wall of the shell, a connecting rod is connected between the installation frames, a guide rod is inserted on the connecting rod, and the upper end and the lower end of the guide rod are respectively connected with the movable rod and the electromagnetic block.

Further, the connecting frame between the inserting column and the supporting frames is sleeved with a first spring, the heights of the two supporting frames on the same side are different, and the shell is in a tilting shape with low left and high right.

Further, a first motor is arranged on the front side surface of the feeding hopper and used for driving the disperser to rotate, and the bottom end of the feeding hopper is communicated with the shell.

Further, the first screening mechanism, the second screening mechanism and the third screening mechanism have the same composition structure, the first screening mechanism comprises the fixing frame and the mounting frame, and the sizes of the sieve holes in the first screening mechanism, the second screening mechanism and the third screening mechanism are gradually reduced.

Further, the fixed frame is rectangular square frame shape, the long edge of fixed frame is placed on the mounting bracket, the minor face of fixed frame respectively with the inserted block with the dog is pegged graft and is gone, the equidistant right side wall of locating of inserted block the casing, the dog install in on the stock guide, the stock guide is used for deriving the sieve material.

Further, the dead lever with the top surface of triangular pole flushes mutually, the height of dead lever is less than the height of movable rod, triangular pole is regular triangular prism structure, the pointed end of triangular pole is placed down, the triangular pole gets into the recess, the both ends of movable rod are followed vertical direction and are run through the long limit of fixed frame.

Further, the cross section of mounting bracket is the U font structure, and peg graft in the U-shaped inslot have the connecting rod, the connecting rod with movable rod one-to-one, the guide bar runs through the connecting rod, the connecting rod below the cover is equipped with the second spring on the guide bar.

Compared with the prior art, the invention has the beneficial effects that: the gravity type soil screening device for repairing the soil is reasonable in structural arrangement, the fixed rod, the triangular rod and the movable rod form a screen hole together, the fixed rod and the triangular rod are fixed, the movable rod moves up and down, the blocking soil particles in the screen hole are pushed out, the blocking problem of the screen hole is guaranteed, the screening efficiency of the soil is guaranteed, the protruding movable rod is used for intercepting the soil, the residence time of the soil on a screening mechanism is prolonged, and the uniform feeding is carried out by matching with a feed hopper with a disperser, so that the screening quality is improved;

1. three screening mechanisms which are parallel to each other are arranged in the equipment, and the sizes of the screen holes are gradually reduced, so that the soil can be conveniently screened more thoroughly, and the screening quality is improved;

2. the fixed frame is utilized to position the fixed rod and the movable rod, so that the fixed rod and the movable rod are convenient to assemble to form sieve holes, the size specification of the sieve holes is kept consistent, and screening treatment is convenient to carry out;

3. the inside of the shell is provided with the inserting block and the stop block which are used for fixing the screening mechanism and enhancing the installation firmness of the screening mechanism.

Drawings

FIG. 1 is a schematic elevational view of the structure of the present invention;

FIG. 2 is a schematic elevational cross-section of the structure of the present invention;

FIG. 3 is an enlarged schematic view of the structure of the present invention at A in FIG. 2;

FIG. 4 is a schematic side cross-sectional view of the structure of the present invention;

FIG. 5 is a schematic side view in cross-section of the structure of the present invention;

FIG. 6 is an enlarged partial schematic view of a first screening mechanism of the present invention;

fig. 7 is a schematic top view of a first screening mechanism of the present invention.

In the figure: 1. a housing; 2. a feed hopper; 3. a base; 4. a vibrator; 5. a first screening mechanism; 6. a second screening mechanism; 7. a third screening mechanism; 8. a fixed frame; 9. a mounting frame; 11. inserting a column; 12. a material guide plate; 13. inserting blocks; 14. a stop block; 21. a first motor; 22. a disperser; 31. a support frame; 32. a first spring; 33. a connecting frame; 41. a second motor; 81. a fixed rod; 82. a triangular bar; 83. a movable rod; 84. a sieve pore; 85. a groove; 91. a connecting rod; 92. a guide rod; 93. an electromagnetic block; 94. and a second spring.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The first embodiment is as follows: referring to fig. 1-7, the present invention provides a technical solution: a gravity type soil screening device for soil remediation, comprising:

the shell 1, the front and back sides of the shell 1 are symmetrically provided with inserting columns 11, the inserting columns 11 penetrate through the top of the connecting frame 33, and the right port of the shell 1 is provided with a material guide plate 12;

a feed hopper 2 mounted on the top surface of the housing 1, the inside of the feed hopper 2 being provided with a disperser 22;

the base 3, the base 3 is fixed with the support 31, the top end of the support 31 is connected with the bottom end of the connecting frame 33;

the vibrator 4 is arranged in the middle of the outer side surface of the shell 1, and the vibrator 4 is connected with the second motor 41 through a transmission belt;

the first screening mechanism 5, the second screening mechanism 6 and the third screening mechanism 7 are arranged in the shell 1 in parallel from top to bottom, and the upper end and the lower end of the first screening mechanism 5, the second screening mechanism 6 and the third screening mechanism 7 are respectively provided with an inserting block 13 and a stop block 14;

the fixed frame 8, the fixed frame 8 is embedded with fixed bars 81, triangular bars 82 are connected between the fixed bars 81, grooves 85 are arranged right below the triangular bars 82, the fixed bars 81 and the triangular bars 82 are mutually perpendicular, the fixed bars 81 and the movable bars 83 are mutually parallel, the fixed bars 81, the triangular bars 82 and the movable bars 83 jointly form sieve holes 84, and the top surfaces of the movable bars 83 are provided with grooves 85;

the mounting bracket 9 is fixed on the inner wall of the shell 1, a connecting rod 91 is connected between the mounting brackets 9, a guide rod 92 is inserted on the connecting rod 91, and the upper end and the lower end of the guide rod 92 are respectively connected with a movable rod 83 and an electromagnetic block 93.

When the gravity type soil screening device for repairing soil is used, soil to be screened is conveyed to the feed hopper 2, the first motor 21 drives the disperser 22 to rotate at a constant speed, the soil is uniformly sprayed on the first screening mechanism 5, the second motor 41 drives the vibrator 4 to operate through the transmission belt, the shell 1 vibrates, the soil slides along the inclined direction of the first screening mechanism 5, when the soil flows through the screen holes 84, small-size materials pass through the screen holes 84 to reach the second screening mechanism 6, larger-size materials are still on the first screening mechanism 5 row until sliding on the guide plate 12, the materials on the second screening mechanism 6 run on the same, so that the soil screening effect is achieved, when the screen holes 84 are blocked, the electromagnetic blocks 93 are electrified to generate magnetic force, the electromagnetic blocks 93 are magnetically attracted with the connecting rods 91, the electromagnetic blocks 93 push the movable rods 83 to move upwards through the guide rods 92, the soil in the screen holes 84 is pushed upwards, normal operation of the screening mechanism is guaranteed, meanwhile, the movable rods 83 after the protrusion are higher than the surface of the mechanism, the soil on the screening mechanism is intercepted, the soil on the screening mechanism is screened, the retention time of the soil is prolonged, and the screening quality is improved.

The second embodiment is as follows: this embodiment is further limited in the first embodiment, as shown in fig. 1 and fig. 2, a first spring 32 is sleeved on a connecting frame 33 between the inserting column 11 and the supporting frame 31, the heights of the two supporting frames 31 on the same side are different, the casing 1 is in a shape of tilting with low left and high right, a material guiding plate 12 is arranged at a right port of the casing 1, the material guiding plate 12 is used for guiding out screening materials, the supporting frames 31 with different heights enable the casing 1 to be in a tilting state, the materials on the screening mechanism can conveniently move under the action of gravity, and the first spring 32 is used for vibration reduction and buffering, so that the influence of vibration on a supporting structure is reduced.

And a third specific embodiment: this embodiment is a further limitation of embodiment one, as shown in fig. 1 and fig. 2, installs first motor 21 on the leading flank of feeder hopper 2, and first motor 21 is used for driving disperser 22 and rotates, and the bottom of feeder hopper 2 is linked together with casing 1, through the rotational speed of adjustment first motor 21, realizes adjusting the feeding fast and slow, avoids the material on the screening mechanism to pile up too thick, guarantees screening quality.

The specific embodiment IV is as follows: this embodiment is a further limitation of embodiment one, and the composition structure of first screening mechanism 5, second screening mechanism 6 and third screening mechanism 7 is the same, and first screening mechanism 5 includes fixed frame 8 and mounting bracket 9, and the sieve mesh 84 size on first screening mechanism 5, second screening mechanism 6 and the third screening mechanism 7 reduces gradually, sets up multistage screening mechanism, makes soil screening more thoroughly, avoids screening product to mix.

Fifth embodiment: in this embodiment, as shown in fig. 4, 6 and 7, the fixing frame 8 is rectangular and square, the long side of the fixing frame 8 is placed on the mounting frame 9, the short sides of the fixing frame 8 are respectively inserted into the insertion blocks 13 and the stop blocks 14, the insertion blocks 13 are equally spaced on the right side wall of the casing 1, the stop blocks 14 are mounted on the material guiding plate 12, the material guiding plate 12 is used for guiding out the screen material, the fixing frame 8 is fixedly connected with the fixing rod 81, the fixing rod 81 is connected with the triangular rod 82, and the movable rod 83 penetrates through the fixing frame 8 to avoid the influence of deviation on the screen holes 84 during up-down movement.

Specific embodiment six: this embodiment is further limited in the sixth embodiment, the top surfaces of the fixing rod 81 and the triangular rod 82 are flush, the height of the fixing rod 81 is smaller than that of the movable rod 83, the triangular rod 82 is in a regular triangular prism structure, the tip of the triangular rod 82 is placed downwards, the triangular rod 82 enters the groove 85, two ends of the movable rod 83 penetrate through the long side of the fixing frame 8 along the vertical direction, when the movable rod 83 moves upwards to protrude out of the surface of the screening mechanism, the protruding portion obtains the interception effect of the movable rod 83 on materials, so that the retention time of the materials is increased, the screening effect is prevented from being influenced by the sliding speed of the materials too fast, when the movable rod 83 moves, the triangular rod 82 moves downwards relative to the movable rod 83, the groove 85 is cleaned, and soil residues on the screening mechanism are reduced.

Seventh embodiment: this embodiment is further limited in the first embodiment, as shown in fig. 4 and 5, the section of the mounting frame 9 is in a U-shaped structure, and the connecting rods 91 are inserted in the U-shaped grooves, the connecting rods 91 are in one-to-one correspondence with the movable rods 83, the guide rods 92 penetrate through the connecting rods 91, the second springs 94 are sleeved on the guide rods 92 below the connecting rods 91, the mounting frame 9 is mainly used for supporting the fixed frame 8, and the connecting rods 91 and the electromagnetic blocks 93 can be adsorbed together, so that the effect of lifting the movable rods 83 is achieved.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A gravity type soil screening device for soil remediation, comprising:

the device comprises a shell (1), wherein inserting columns (11) are symmetrically arranged on the front side surface and the rear side surface of the shell (1), the inserting columns (11) penetrate through the top of a connecting frame (33), and a material guide plate (12) is arranged at the right port of the shell (1);

a feed hopper (2) which is arranged on the top surface of the shell (1), wherein a disperser (22) is arranged in the feed hopper (2);

the base (3), the base (3) is fixed with a supporting frame (31), and the top end of the supporting frame (31) is connected with the bottom end of the connecting frame (33);

the vibrator (4) is arranged in the middle of the outer side surface of the shell (1), and the vibrator (4) is connected with the second motor (41) through a transmission belt;

the first screening mechanism (5), the second screening mechanism (6) and the third screening mechanism (7) are arranged in the shell (1) in parallel from top to bottom, and the upper end and the lower end of the first screening mechanism (5), the upper end and the lower end of the second screening mechanism (6) and the lower end of the third screening mechanism (7) are respectively provided with an inserting block (13) and a stop block (14);

the fixing frame (8), inlay on the fixing frame (8) and be equipped with dead lever (81), be connected with triangular pole (82) between dead lever (81), be provided with recess (85) under triangular pole (82), dead lever (81) with triangular pole (82) mutually perpendicular, dead lever (81) and movable rod (83) are parallel to each other, dead lever (81), triangular pole (82) and movable rod (83) form sieve mesh (84) jointly, have seted up on the top surface of movable rod (83) recess (85);

the installation frame (9) is fixed on the inner wall of the shell (1), a connecting rod (91) is connected between the installation frames (9), a guide rod (92) is inserted on the connecting rod (91), and the upper end and the lower end of the guide rod (92) are respectively connected with a movable rod (83) and an electromagnetic block (93).

2. A gravity soil screening device for soil remediation according to claim 1 wherein: the connecting frame (33) between the inserting column (11) and the supporting frames (31) is sleeved with a first spring (32), the heights of the two supporting frames (31) on the same side are different, and the shell (1) is in a tilting shape with low left and high right.

3. A gravity soil screening device for soil remediation according to claim 1 wherein: the utility model discloses a feed hopper, including casing (1), diffuser (22), feed hopper (2), first motor (21) are installed on the leading flank of feed hopper (2), first motor (21) are used for driving diffuser (22) rotate, the bottom of feed hopper (2) with casing (1) are linked together.

4. A gravity soil screening device for soil remediation according to claim 1 wherein: the first screening mechanism (5), the second screening mechanism (6) and the third screening mechanism (7) are identical in composition structure, the first screening mechanism (5) comprises a fixed frame (8) and a mounting frame (9), and the sizes of sieve holes (84) in the first screening mechanism (5), the second screening mechanism (6) and the third screening mechanism (7) are gradually reduced.

5. A gravity soil screening device for soil remediation according to claim 1 wherein: the fixed frame (8) is rectangular square frame shape, the long edge of the fixed frame (8) is placed on the mounting frame (9), the short edges of the fixed frame (8) are respectively inserted into the inserting blocks (13) and the check blocks (14), the inserting blocks (13) are arranged on the right side wall of the shell (1) at equal intervals, the check blocks (14) are installed on the material guide plate (12), and the material guide plate (12) is used for guiding out screen materials.

6. A gravity soil screening device for soil remediation according to claim 1 wherein: the utility model discloses a fixed frame, including fixed frame (8), fixed frame, triangular pole (82), fixed lever (81) with the top surface of triangular pole (82) flushes mutually, the height of fixed lever (81) is less than the height of movable rod (83), triangular pole (82) are regular triangular prism structure, the pointed end of triangular pole (82) is placed downwards, triangular pole (82) get into recess (85), the both ends of movable rod (83) are run through along vertical direction the long limit of fixed frame (8).

7. A gravity soil screening device for soil remediation according to claim 1 wherein: the section of mounting bracket (9) is U font structure, and peg graft in the U-shaped inslot have connecting rod (91), connecting rod (91) with movable rod (83) one-to-one, guide bar (92) run through connecting rod (91), guide bar (92) below go up the cover and be equipped with second spring (94).