CN111001470A

CN111001470A - Screening plant for soil remediation

Info

Publication number: CN111001470A
Application number: CN201911330231.8A
Authority: CN
Inventors: 王凯; 李乔
Original assignee: 王凯
Current assignee: BOSI INNOR TECHNOLOGY (BEIJING) Co.,Ltd.
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-04-14
Anticipated expiration: 2039-12-20
Also published as: CN111001470B

Abstract

The invention discloses a screening device for soil restoration, which comprises a screening box, wherein a feeding groove is arranged at the upper end of the screening box, the inner wall of the feeding groove is abutted against an upper cover, a partition plate is fixed on the inner wall of the screening box, a plurality of partition grooves are formed in the upper end of the partition plate in a penetrating mode, the inner wall of each partition groove is rotatably connected with a partition pipe in a penetrating mode, a plurality of scraping plates are fixed on the circumferential side wall of each partition pipe, a bearing plate is fixed on the outer wall of the screening box, a power mechanism is arranged at the upper end of the bearing plate, and an air outlet groove is formed in the side wall of the screening box in a penetrating mode. Has the advantages that: drive the runner through the motor and rotate for the runner drives the stirring board rotation on it, makes the stirring board carry out effectual stirring to the soil of baffle upper end, makes soil smashed by the stirring, and subsequent screening of being convenient for turns to of two runners is opposite, and then makes the soil between two runners receive bigger shearing force, makes the stirring crushing effect of soil strengthened.

Description

Screening plant for soil remediation

Technical Field

The invention relates to the technical field of soil remediation, in particular to a screening device for soil remediation.

Background

Soil remediation is a technical measure for restoring normal functions of contaminated soil; in the soil remediation industry, the existing soil remediation technologies can be more than one hundred, the common technologies can be more than ten, and the existing soil remediation technologies can be roughly divided into three methods, namely physical methods, chemical methods and biological methods.

Soil repair process mostly needs to sieve soil, grit and debris clearance with adulteration in the soil come out, be convenient for restore the repair work of liquid medicine etc. to soil, avoid the grit of great granule to cause the damage to the machine simultaneously, and the separation of soil and debris is realized through the screen cloth shake mostly to current screening mode, but this kind of mode very easily leads to the jam of screen cloth, need frequent clearance screen cloth just can realize effectual screening, need to drop into great manpower at a large amount of soil screening during operation, and current screening plant means is too single, lead to the screening effect relatively poor.

Disclosure of Invention

The invention aims to solve the problem that the screening in the soil remediation process is inconvenient in the prior art, and provides a screening device for soil remediation.

In order to achieve the purpose, the invention adopts the following technical scheme: a screening device for soil restoration comprises a screening box, wherein a feeding groove is formed in the upper end of the screening box, an upper cover is abutted against the inner wall of the feeding groove, a partition plate is fixed on the inner wall of the screening box, a plurality of partition grooves are formed in the upper end of the partition plate in a penetrating mode, the inner wall of each partition groove is rotatably connected with a partition pipe in a penetrating mode, a plurality of scraping plates are fixed on the circumferential side wall of each partition pipe, a bearing plate is fixed on the outer wall of the screening box, a power mechanism is arranged at the upper end of the bearing plate, an air outlet groove is formed in the side wall of the screening box in a penetrating mode, an induced draft fan is fixed on the inner wall of the air outlet groove, a collecting box is fixed on the outer wall of the screening box, a collecting pipe communicated with the air outlet groove is inserted in the upper end of the collecting box in a penetrating mode, an air outlet is formed in the, the inner wall of screening case is equipped with the shake mechanism that is used for the secondary to sieve, the lower part lateral wall of screening case runs through and has seted up the blown down tank, the blown down tank inner wall rotates and is connected with down the apron.

In the screening device for soil remediation, the power mechanism comprises a motor fixed at the upper end of the bearing plate, an output shaft of the motor is welded with one end of one of the separation tubes, which is far away from the screening box, the side wall of the screening box is connected with two rotating tubes in a penetrating and rotating manner, the circumferential outer walls of the two rotating tubes are respectively fixed with a plurality of stirring plates, one end of each of the two stirring plates, which is far away from the screening box, is fixed with a connecting gear, the two connecting gears are mutually meshed, the side wall of the screening box, which is far away from the connecting gear, is inserted with two upper air pipes in a penetrating and inserting manner, the two upper air pipes are respectively connected with the inner walls of the two rotating tubes in a rotating manner through bearings, the two adjacent separation tubes are respectively connected through belts, one of the separation tubes is connected with one of the rotating tubes through a belt, the side wall of the screening box, which is far away from the motor, is inserted with a plurality of lower, and a plurality of separation holes are formed in the inner wall of each separation pipe in a penetrating manner.

In foretell soil restoration is with screening device, the shake mechanism includes the screen cloth of being connected with the rotation of screening incasement wall, the screening case is close to one side inner wall of collecting box and is fixed with the mounting panel, the lower wall that the screen cloth is close to mounting panel one side is fixed with the lug, the mounting panel is fixed with coupling spring with the lug jointly, the one side inner wall that the screening case is close to the collecting box runs through the mouth of blowing of seting up with the air exit intercommunication, the one side inner wall that the screening case kept away from the mouth of blowing runs through and has seted up the air outlet, the inner wall of air outlet is fixed.

In foretell soil is restoreed and is used screening plant, ash blocking device is including seting up the transmission chamber in the collecting box inner wall, the inner wall in transmission chamber runs through to rotate and is connected with puddler and transfer line, the one end that is located transmission intracavity portion of puddler is fixed with driven gear, the one end that the transmission chamber was kept away from to the puddler extends to the collecting box inside and is fixed with the brush board, the one end that the transfer line is located transmission intracavity portion is fixed with the driving gear with driven gear engaged with, the one end that the transmission chamber was kept away from to the transfer line extends to inside the air exit, the transfer line is located inside one section circumference lateral wall of air exit and is fixed with a plurality of commentaries on classics leaf, the collecting box inner wall is fixed with.

Compared with the prior art, the invention has the advantages that:

1. according to the invention, the rotating pipe is driven to rotate by the motor, so that the rotating pipe drives the stirring plate on the rotating pipe to rotate, the soil at the upper end of the partition plate is effectively stirred by the stirring plate, the soil is stirred and crushed, and subsequent screening is facilitated;

2. according to the invention, hot air is introduced into the interior of the rotating pipe of the upper air pipe box, so that soil is dried in the stirring process, the soil is difficult to agglomerate, the soil gap is increased under the impact of air flow, the subsequent screening is facilitated, dust raised in the soil stirring process is collected through the induced draft fan, the screening efficiency is improved, and the pollution of the dust to the screening box is avoided;

3. according to the invention, the separation pipe drives the scraper to rotate, so that soil is scraped and separated for a small amount for multiple times, the soil is completely separated from larger sand and stones in the continuous scraping process, the soil screening is effectively realized, the process is different from the conventional screen screening, the screen can be effectively prevented from being blocked, the soil can be refined and separated again, and the subsequent screening treatment is facilitated;

4. in the invention, a draught fan pumps a large amount of airflow into a collecting box while extracting dust, so that the airflow enters a screening box through an air outlet and an air blowing port, the air pressure between a lug and a mounting plate is reduced, the lug drives a screen to shake, the soil above the screen is further screened under shaking, and smaller gravels in the soil are separated;

5. according to the invention, when the airflow passes through the air outlet, the rotating blade is driven to rotate, so that the rotating blade drives the transmission rod to rotate, and finally, under the meshing of the driving gear and the driven gear, the brush plate rotates to effectively clean the filter screen, so that unsmooth ventilation caused by dust accumulation is avoided.

Drawings

FIG. 1 is a schematic structural diagram of a screening device for soil remediation according to the present invention;

FIG. 2 is a side view of a soil remediation screening apparatus according to the present invention;

FIG. 3 is a side cross-sectional view of a soil remediation screening device in accordance with the present invention;

FIG. 4 is an enlarged schematic view of the present divider tube section;

fig. 5 is an enlarged schematic view of a portion a in fig. 3.

In the figure: 1 screening box, 2 feeding grooves, 3 upper covers, 4 clapboards, 5 bearing plates, 6 motors, 7 separating pipes, 8 dividing grooves, 9 scraping plates, 10 screens, 11 mounting plates, 12 connecting springs, 13 bumps, 14 air outlet grooves, 15 induced draft fans, 16 collecting pipes, 17 collecting boxes, 18 air blowing ports, 19 air outlet ports, 20 intercepting nets, 21 rotating pipes, 22 stirring plates, 23 connecting gears, 24 upper air pipes, 25 lower air pipes, 26 dispersing holes, 27 separating holes, 28 transmission cavities, 29 stirring rods, 30 transmission rods, 31 driving gears, 32 driven gears, 33 rotating blades, 34 brush plates, 35 filter screens, 36 air outlet ports, 37 discharging grooves and 38 lower covers.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Examples

Referring to fig. 1-5, a screening device for soil remediation, comprising a screening box 1, wherein a feeding groove 2 is arranged at the upper end of the screening box 1, an upper cover 3 is abutted against the inner wall of the feeding groove 2, a partition plate 4 is fixed on the inner wall of the screening box 1, a plurality of dividing grooves 8 are arranged at the upper end of the partition plate 4 in a penetrating manner, the inner wall of each dividing groove 8 is rotatably connected with a separating pipe 7 in a penetrating manner, a plurality of scraping plates 9 are fixed on the circumferential side wall of each separating pipe 7, a bearing plate 5 is fixed on the outer wall of the screening box 1, a power mechanism is arranged at the upper end of the bearing plate 5, an air outlet groove 14 is arranged on the side wall of the screening box 1 in a penetrating manner, an induced draft fan 15 is fixed on the inner wall of the air outlet groove 14, a collecting box 17 is fixed on the outer wall of the screening box 1, a collecting pipe 16 communicated with the air outlet groove 14 is inserted at the upper end of the, the inner wall of screening case 1 is equipped with the shake mechanism that is used for the secondary to sieve, and screening case 1's lower part lateral wall runs through and has seted up blown down tank 37, and blown down tank 37 inner wall is connected with lower cover 38 by the torsional spring rotation.

The power mechanism comprises a motor 6 fixed at the upper end of a bearing plate 5, an output shaft of the motor 6 is welded with one end of one of the separating tubes 7 far away from the sieving box 1, the side wall of the sieving box 1 is connected with two rotating tubes 21 in a penetrating and rotating manner, the circumferential outer walls of the two rotating tubes 21 are respectively fixed with a plurality of stirring plates 22, one ends of the two stirring plates 22 far away from the sieving box 1 are respectively fixed with a connecting gear 23, the two connecting gears 23 are mutually meshed, the side wall of the sieving box 1 far away from the connecting gear 23 is inserted with two upper air pipes 24 in a penetrating manner, the two upper air pipes 24 are respectively and rotatably connected with the inner walls of the two rotating tubes 21 through bearings, the two adjacent separating tubes 7 are respectively connected through belts, one separating tube 7 is connected with one of the rotating tubes 21 through a belt, under the driving of the motor 6, the plurality of separating tubes 7 synchronously rotate under the connection of the belts, and the rotating tubes 21 connected with the separating tubes, the connecting gear 23 on the rotating pipe 21 rotates along with the rotating pipe 21, so that the other rotating pipe 21 rotates under the driving of the connecting gear 23 and the rotating directions are opposite, the side wall of the screening box 1, which is far away from the motor 6, is penetrated and inserted with the lower air pipes 25, the lower air pipes 25 are respectively connected with the inner walls of the separating pipes 7 in a rotating mode through bearings, the inner wall of each separating pipe 7 is penetrated and provided with the separating holes 27, the upper air pipe 24 and the lower air pipe 25 are connected with an external hot air blower, hot air is introduced into the rotating pipe 21 and the separating pipes 7 through the upper air pipe 24 and the lower air pipes 25, the hot air introduced into the rotating pipe 21 is sprayed out through the dispersing holes 26, the drying and refining of soil are realized, the hot air introduced into the separating pipes 7 is sprayed out through the separating holes 27, the blowing-off of the soil on the scraper plate 9 is realized, and the effective release of the scraped-off soil is ensured.

The shaking mechanism comprises a screen 10 rotatably connected with the inner wall of the screening box 1, a mounting plate 11 is fixed on the inner wall of one side of the screening box 1 close to the collecting box 17, a bump 13 is fixed on the lower wall of one side of the screen 10 close to the mounting plate 11, a connecting spring 12 is fixed on the mounting plate 11 and the bump 13 together, a blowing port 18 communicated with an air outlet 36 is formed in the inner wall of one side of the screening box 1 close to the collecting box 17 in a penetrating manner, an air outlet 19 is formed in the inner wall of one side of the screening box 1 far away from the blowing port 18 in a penetrating manner and used for discharging redundant air, an intercepting net 20 is fixed on the inner wall of the air outlet 19 and used for intercepting fine soil moving along with air flow, the side, close to each other, of the bump 13 and the mounting plate 11 is an arc surface, air pressure between the bump 13 and the mounting.

The ash blocking device comprises a transmission cavity 28 arranged on the inner wall of the collection box 17, the inner wall of the transmission cavity 28 is connected with a stirring rod 29 and a transmission rod 30 in a penetrating and rotating mode, one end, located inside the transmission cavity 28, of the stirring rod 29 is fixed with a driven gear 32, one end, far away from the transmission cavity 28, of the stirring rod 29 extends into the collection box 17 and is fixed with a brush plate 34, one end, located inside the transmission cavity 28, of the transmission rod 30 is fixed with a driving gear 31 meshed with the driven gear 32, the driven gear 32 and the driving gear 31 are both bevel gears, one end, far away from the transmission cavity 28, of the transmission rod 30 extends into an air outlet 36, a plurality of rotating blades 33 are fixed on one section of the circumferential side wall, located inside the air outlet 36, of the transmission rod 30.

In the invention, when the screening work of soil restoration is carried out, firstly, soil to be screened is poured into the screening box 1 through the feeding groove 2, then the upper cover 3 is covered to prevent the soil from flying out, then the motor 6 is started, hot air is simultaneously introduced into the upper air pipe 24 and the lower air pipe 25, each separating pipe 7 and the two rotary pipes 21 are driven by the motor 6 to rotate, because the two connecting gears 23 are mutually meshed, the two connecting gears 23 drive the two rotary pipes 21 to rotate in opposite directions, the rotation of the two rotary pipes 21 drives the stirring plates 22 on the rotary pipes to rotate, the stirring and crushing of the soil are realized, meanwhile, because the rotation directions of the two rotary pipes 21 are opposite, the shearing force applied to the soil at the middle position of the two rotary pipes 21 is larger, the stirring and crushing of the soil can be better realized, meanwhile, hot air introduced into the upper air pipe 24 is sprayed out through the dispersion holes 26, so that the soil is impacted by air flow to be further differentiated, the soil clearance is increased, the screening is convenient, meanwhile, the soil can be heated and dried, the caking is avoided, and the soil is easier to screen;

the dry and fine dust in the soil per se can splash in the stirring process, and the part of soil is dry and does not need to participate in subsequent screening, so that the dust is prevented from being recombined with the damp and hot soil and from adhering to the inside of the screening box 1, the induced draft fan 15 can be started, the raised dust enters the collecting box 17 through the collecting pipe 16 under the air draft effect of the induced draft fan 15, the separation from the soil main body is further realized, and the dry dust is convenient to be intensively treated;

because the soil can not directly fall through the dividing groove 8 due to the blocking of the separating pipe 7, the rotation of the separating pipe 7 drives the scraper 9 to rotate, so that the scraper 9 rubs with the soil, further scraping off a small amount of soil, carrying the soil to the lower end of the clapboard 4 along with the rotation of the separating pipe 7, fall under the action of the gravity of the soil and the wind force blown out by the downpipe 25, realize the falling of the soil for a small amount and a plurality of times, in the process, due to the scraping of the scraper blade 9, larger particles such as gravels and the like in the soil can not be scraped by the scraper blade 9, with the continuous handling of the scraper 9, the soil will thus eventually pass completely through the partition 4, while larger debris will be stopped above the partition 4, the soil and the broken stones are screened, the situation that the channel is blocked by the soil is avoided in the whole process, and meanwhile, the soil can be further refined, so that the subsequent screening treatment is facilitated;

the soil leaving the partition plate 4 falls on the screen mesh 10, the induced draft fan 15 conveys the extracted air to the collection box 17, finally the air flow is discharged from the air outlet 36, the air flow drives the rotating blade 33 to rotate when passing through the air outlet 36, and further the transmission rod 30 drives the driving gear 31 to rotate, so that the driven gear 32 drives the stirring rod 29 to rotate, and further the rotation of the brush plate 34 is realized, the rotation of the brush plate 34 cleans the screen mesh 35, the blocking of the screen mesh 35 by dust is avoided, the smooth ventilation is ensured, the air discharged from the air outlet 36 enters the screening box 1 through the air outlet 18, the air flow passes through the mounting plate 11 and the lug 13, the lug 13 drives the screen mesh 10 to move downwards under the action of air pressure difference, and the air flow passing through the air outlet 36 is intermittently blocked by the brush plate 34 to form suddenly large and small wind force due to the continuous rotation of the brush plate 34, make the atmospheric pressure size that lug 13 received constantly change, and then make lug 13 drive the continuous upper and lower shake of screen cloth 10, and then realize the further screening to the soil above screen cloth 10 for less rubble granule is filtered and is sieved, and final soil drops in the bottom of screening case 1, opens lower cover 38 after the screening finishes and can take out soil from blown down tank 37.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a screening plant for soil restoration, includes screening case (1), its characterized in that, the upper end of screening case (1) begins to have pan feeding groove (2), the inner wall of pan feeding groove (2) has supported upper cover (3), the inner wall of screening case (1) is fixed with baffle (4), the upper end of baffle (4) is run through and has been seted up a plurality of cut-off groove (8), every the inner wall of cut-off groove (8) all runs through rotation and connects branch spacer tube (7), every the circumference lateral wall of branch spacer tube (7) all is fixed with a plurality of scraper blades (9), the outer wall of screening case (1) is fixed with loading board (5), the upper end of loading board (5) is equipped with power unit, the lateral wall of screening case (1) runs through and has seted up air outlet groove (14), the inner wall of air outlet groove (14) is fixed with draught fan (15), the outer wall of screening case (1) is fixed with collecting box (17), the collecting pipe (16) that is equipped with air-out groove (14) intercommunication is run through to insert in collecting box (17) upper end, the lateral wall of collecting box (17) runs through and has seted up air exit (36), the inner wall of collecting box (17) is equipped with the ash blocking device that is used for preventing the dust effusion, the inner wall of screening case (1) is equipped with the shake mechanism that is used for the secondary screening, the lower part lateral wall of screening case (1) runs through and has seted up blown down tank (37), blown down tank (37) inner wall rotates and is connected with lower cover 38.

2. The screening device for soil remediation according to claim 1, wherein the power mechanism comprises a motor (6) fixed at the upper end of the bearing plate (5), an output shaft of the motor (6) is welded with one end of one of the separation pipes (7) far away from the screening box (1), the side wall of the screening box (1) is connected with two rotating pipes (21) in a penetrating and rotating manner, the circumferential outer walls of the two rotating pipes (21) are respectively fixed with a plurality of stirring plates (22), one ends of the two stirring plates (22) far away from the screening box (1) are respectively fixed with a connecting gear (23), the two connecting gears (23) are mutually meshed, the side wall of the screening box (1) far away from the connecting gear (23) is inserted with two upper air pipes (24) in a penetrating and inserting manner, and the two upper air pipes (24) are respectively connected with the inner walls of the two rotating pipes (21) in a rotating manner through bearings, two adjacent separating tubes (7) are connected through a belt, one separating tube (7) is connected with one rotating tube (21) through the belt, the side wall, far away from the motor (6), of the screening box (1) penetrates through and is inserted with a plurality of lower air pipes (25), the lower air pipes (25) are rotatably connected with the inner walls of the separating tubes (7) through bearings, and a plurality of separating holes (27) are formed in the inner wall of each separating tube (7) in a penetrating mode.

3. The screening device for soil remediation according to claim 1, wherein the shaking mechanism comprises a screen (10) rotatably connected with the inner wall of the screening box (1), a mounting plate (11) is fixed on the inner wall of one side, close to the collection box (17), of the screening box (1), a bump (13) is fixed on the lower wall of one side, close to the mounting plate (11), of the screen (10), a connecting spring (12) is jointly fixed on the mounting plate (11) and the bump (13), an air blowing port (18) communicated with an air exhaust port (36) is formed in the inner wall of one side, close to the collection box (17), of the screening box (1), an air outlet (19) is formed in the inner wall of one side, far away from the air blowing port (18), of the screening box (1), and an intercepting net (20) is fixed on the inner wall of the air outlet (19).

4. The screening device for soil remediation according to claim 1, wherein the ash blocking device comprises a transmission cavity (28) arranged on the inner wall of the collection box (17), the inner wall of the transmission cavity (28) is connected with a stirring rod (29) and a transmission rod (30) in a penetrating and rotating manner, one end of the stirring rod (29) located inside the transmission cavity (28) is fixed with a driven gear (32), one end of the stirring rod (29) far away from the transmission cavity (28) extends into the collection box (17) and is fixed with a brush plate (34), one end of the transmission rod (30) located inside the transmission cavity (28) is fixed with a driving gear (31) meshed with the driven gear (32), one end of the transmission rod (30) far away from the transmission cavity (28) extends into the exhaust outlet (36), and a plurality of exhaust rotary vanes (33) are fixed on one section of the circumferential side wall of the transmission rod (30) located inside the exhaust outlet (36), a filter screen (35) is fixed on the inner wall of the collection box (17) at a position corresponding to the air outlet (36).