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CN-121972268-A - Soil screening equipment capable of avoiding soil accumulation for soil remediation

CN121972268ACN 121972268 ACN121972268 ACN 121972268ACN-121972268-A

Abstract

The invention relates to the technical field of soil screening equipment, in particular to soil screening equipment capable of avoiding soil accumulation for soil remediation, which comprises a support frame provided with a movable wheel and a coarse screening mechanism, wherein the support frame is provided with a movable wheel; the device comprises a coarse screening mechanism, a fine screening mechanism and a medicament mixing mechanism, wherein the coarse screening mechanism is used for carrying out fine grinding on soil particles output by the coarse screening mechanism, and the medicament mixing mechanism is used for receiving the soil particles output by the fine screening mechanism and adding medicaments to the soil particles. According to the invention, soil of the land is transmitted to the input end of the coarse screening mechanism by utilizing the existing conveying equipment, then the coarse screening mechanism breaks the soil into particles with uniform size, then the soil particles are ground into fine soil particles again by utilizing the grinding plate, then the soil particles are output to the medicament mixing mechanism, and then under the overall control of the controller, the electromagnetic valve releases medicament with dosage matched with the soil particles according to the corresponding weight and mixes the medicament with the soil particles.

Inventors

  • ZHANG XUEFENG
  • HUANG XIN
  • ZHANG MENG

Assignees

  • 生态环境部土壤与农业农村生态环境监管技术中心

Dates

Publication Date
20260505
Application Date
20260202

Claims (10)

  1. 1. Soil screening equipment for soil remediation capable of avoiding soil accumulation comprises a supporting frame (1) provided with a movable wheel (2), and is characterized by further comprising: the coarse screening mechanism (4) is connected to the supporting frame (1), and the coarse screening mechanism (4) is used for crushing larger-particle soil in the soil into fine particles; The fine screening mechanism (5) is arranged below the primary screening mechanism, the input end of the fine screening mechanism (5) is connected with the output end of the coarse screening mechanism (4), and the fine screening mechanism (5) is used for finely grinding soil particles output by the coarse screening mechanism (4); The medicament mixing mechanism (6), medicament mixing mechanism (6) is received soil particles of fine screening mechanism (5) output and add the medicament to it, be equipped with pressure sensor (3) on medicament mixing mechanism (6), pressure sensor (3) are used for responding to the weight of soil particles and form the weight electricity signal, medicament mixing mechanism (6) are according to weight electricity signal release corresponding medicament dosage.
  2. 2. A soil remediation soil screening apparatus for avoiding soil accumulation in accordance with claim 1 wherein said coarse screening means (4) comprises a housing I (7) connected to the support frame (1), a screen drum (8) rotatably connected within the housing I (7) and a crushing member rotatably connected within the screen drum (8).
  3. 3. The soil screening device for soil remediation capable of avoiding soil accumulation according to claim 2, wherein the first shell (7) is provided with a first motor (11), the output end of the first motor (11) is connected with a crushing piece, one end of the screen cylinder (8) is connected with a gear ring (12), the support frame (1) is connected with a second motor (14), the output end of the second motor (14) is connected with a gear (13), and the gear (13) is meshed with the gear ring (12).
  4. 4. A soil remediation soil screening apparatus capable of avoiding soil accumulation as claimed in claim 3 wherein the crushing member comprises a plurality of crushing blades (9) and a rotating shaft (10) rotatably connected to the screen drum (8), the plurality of crushing blades (9) are linearly equidistantly arranged along the central axis of the rotating shaft (10), and the output end of the motor I (11) is connected with one end of the rotating shaft (10).
  5. 5. The soil screening device for soil remediation capable of avoiding soil accumulation according to claim 2, wherein the number of the fine screening mechanisms (5) is several, each fine screening mechanism (5) comprises a second shell (15), a cylindrical screen member (16) connected inside the second shell (15) and two grinding plates (17) rotatably connected inside the second shell (15), the two grinding plates (17) are vertically arranged up and down, a material receiving pipe (18) is connected to the upper grinding plate (17), one end of the material receiving pipe (18) is connected with the output end of the first shell (7), the other end of the material receiving pipe (18) extends to a position between the two grinding plates (17), the material receiving pipe (18) is used for receiving soil particles at the output end of the coarse screening mechanism (4), a grinding cavity (19) is formed between the two grinding plates (17), and the screen member (16) is sleeved outside the two grinding cavities (19).
  6. 6. The soil screening device for soil remediation capable of avoiding soil accumulation according to claim 5, wherein the two grinding plates (17) are connected with a first belt wheel (20), a driving shaft (21) is rotatably connected to the outer side wall of the second casing (15), the driving shaft (21) is connected with two second belt wheels (22), a first transmission belt (24) is sleeved between the second belt wheels (22) and the first belt wheels (20), a third motor (23) is arranged on the supporting frame (1), and the output end of the third motor (23) is connected with one end of the driving shaft (21).
  7. 7. The soil screening device for soil remediation capable of avoiding soil accumulation according to claim 1, wherein a storage bin (25) is arranged at the output end of each of the fine screening mechanisms (5), a material conveying component is arranged between the output end of each storage bin (25) and each medicament mixing mechanism (6), each material conveying component comprises a material conveying pipe (27) connected to the supporting frame (1) and a helical blade (26) rotatably connected to the inside of each material conveying pipe (27), one end of each material conveying pipe (27) is connected with a driving motor (28), and the output end of each driving motor (28) is connected with each helical blade (26).
  8. 8. The soil screening device for soil remediation capable of avoiding soil accumulation according to claim 1, further comprising a first support (29) connected to the support frame (1), wherein the medicament mixing mechanism (6) comprises a support slide (30) fixedly connected with the first support (29), a weighing bin (31) slidingly connected to the support slide (30) and a medicament bin (32) connected to the support slide (30), an output end of the medicament bin (32) is connected with an output pipe (33), an electromagnetic valve (34) is arranged on the output pipe (33), a support rod (35) is fixedly connected to the outer side wall of the weighing bin (31), the pressure sensor (3) is connected to the support slide (30), one end of the support rod (35) extends to the output end of the pressure sensor (3), and valve assemblies are arranged at the output end and the input end of the weighing bin (31).
  9. 9. The soil screening device capable of avoiding soil accumulation, as set forth in claim 8, characterized in that the valve assembly comprises a feeding pipe (36) and a rotating plate (37) rotatably connected inside the feeding pipe (36), a servo motor (38) is arranged on the outer side wall of the feeding pipe (36), an output end of the servo motor (38) is connected with the rotating plate (37), a support second (39) is connected to the support slide way (30), a belt wheel third (40) and a belt wheel fourth (41) are rotatably connected to the support second (39), a transmission belt second (420) is sleeved on the belt wheel third (40) and the belt wheel fourth (41), a speed reducing motor (42) is arranged on the belt wheel fourth (41), the speed reducing motor (42) is used for driving the belt wheel fourth (41) to rotate, a plurality of stirring rods (43) are connected to the belt wheel third (40), and the stirring rods (43) extend to the inside of the weighing bin (31).
  10. 10. The soil remediation equipment for soil remediation which can avoid soil accumulation according to claim 8 further comprises a controller (44), wherein the pressure sensor (3) and the electromagnetic valve (34) are electrically connected with the controller (44), the controller (44) receives an electrical signal which is sensed by the pressure sensor (3) by weighing the weight of the bin (31), and then the controller (44) outputs a control signal which controls the operation of the electromagnetic valve (34).

Description

Soil screening equipment capable of avoiding soil accumulation for soil remediation Technical Field The invention relates to soil screening equipment for soil remediation, in particular to soil screening equipment for soil remediation, which can avoid soil accumulation, and belongs to the technical field of soil screening equipment. Background The soil sieving equipment is specially used in soil repairing process, and can sieving soil to eliminate impurity and pollutant, raise soil quality and fertility, and has high soil repairing efficiency, generally, after the soil is ground into fine particles, a related repairing agent is added into the fine particles so as to improve the physical and chemical properties of the soil, for example, the repairing agent can adjust the pH value of the soil, improve the soil structure, and further prevent the subsequent accumulation of the soil. However, in the operation of the prior art, the fine screening degree of the soil particles is not high, the soil particles are only finely divided by the screen, the condition of uneven particle size exists, so that when the subsequent soil particles are mixed with the repairing agent again, the mixing degree between the soil particles and the repairing agent is lower, the repairing operation of the soil is affected, the treated soil can be accumulated and coagulated again, the treated soil can be put into the soil after being mixed with the soil particles when the agent is mixed, the agent is not strict in use on the dosage of the agent and the specific gravity of the soil volume, and the phenomenon of accumulated clotting of the treated soil can be caused. Accordingly, there is a need for an improvement in soil screening apparatus for soil remediation that avoids soil accumulation to solve the above-described problems. Disclosure of Invention The invention aims to provide soil sieving equipment for soil remediation, which can be used for conveying soil of a soil to an input end of a coarse sieving mechanism by using existing conveying equipment, crushing the soil into particles with uniform size under the action of the coarse sieving mechanism, wherein the soil particles are still in a larger-size particle state, grinding large-size particle soil particles output by the coarse sieving mechanism into fine soil particles by using a grinding plate, outputting the fine soil particles processed by the fine sieving mechanism to a medicament mixing mechanism, performing weight induction on the whole soil particles under the weighing of a pressure sensor, then under the overall control of a controller, releasing medicament with matched dosage according to the corresponding weight, mixing with the soil particles by using an electromagnetic valve, finally discharging the medicament mixing mechanism, and completing the operation of sieving and adding the medicament to the soil according to the operation flow if the operation flow is repeated circularly, thereby avoiding the phenomenon that the soil is mixed with the medicament in an insufficient degree due to insufficient sieving degree, and finally, the soil is piled again. In order to achieve the aim, the main technical scheme adopted by the invention comprises soil sieving equipment for soil remediation, a coarse sieving mechanism, a fine sieving mechanism and a medicament mixing mechanism, wherein the soil sieving equipment is capable of avoiding soil accumulation and comprises a supporting frame provided with a moving wheel, the coarse sieving mechanism is connected to the supporting frame and is used for breaking soil with larger particles in soil into fine particles, the fine sieving mechanism is arranged below a primary sieving mechanism, the input end of the fine sieving mechanism is connected with the output end of the coarse sieving mechanism and is used for finely grinding soil particles output by the coarse sieving mechanism, the medicament mixing mechanism is used for receiving the soil particles output by the fine sieving mechanism and adding medicaments to the soil particles, and the medicament mixing mechanism is provided with a pressure sensor which is used for sensing the weight of the soil particles and forming a weight electric signal, and the medicament mixing mechanism is used for releasing corresponding medicament doses according to the weight electric signal. Preferably, the coarse screening mechanism comprises a first shell connected to the support frame, a screen cylinder rotatably connected in the first shell, and a crushing piece rotatably connected in the screen cylinder. Preferably, the first shell is provided with a first motor, the output end of the first motor is connected with the crushing piece, one end of the screen cylinder is connected with a gear ring, the support frame is connected with a second motor, the output end of the second motor is connected with a gear, and the gear is meshed with the gear ring. Preferably, the crushing member is composed of