CN110695081A - Environmental protection soil pollution screening treatment equipment - Google Patents
Environmental protection soil pollution screening treatment equipment Download PDFInfo
- Publication number
- CN110695081A CN110695081A CN201911141540.0A CN201911141540A CN110695081A CN 110695081 A CN110695081 A CN 110695081A CN 201911141540 A CN201911141540 A CN 201911141540A CN 110695081 A CN110695081 A CN 110695081A
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- China
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- fixedly connected
- body shell
- machine body
- material containing
- containing frame
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/08—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
- B02C18/12—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with drive arranged below container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/04—Heating arrangements using electric heating
Abstract
The invention belongs to the technical field of environmental protection, and particularly relates to environment-friendly soil pollution screening treatment equipment which comprises a machine body shell and a spiral pusher, wherein the machine body shell is permeable up and down, the upper end of the machine body shell is coaxially and fixedly connected with a material containing frame matched with the machine body shell, the material containing frame is positioned under a discharge port of the spiral pusher, the upper end of a feed pipe is fixedly connected with the lower end of the material containing frame, a notch is formed in the side wall of one end, close to the machine body shell, of the feed pipe, an opening is formed in the side wall of the machine body shell, a switch plate for embedding the notch of the feed pipe is rotatably connected in the opening, a support rack is fixedly connected at the lower end of the machine. Has the advantages that: the invention can carry out the chemical adding treatment on the soil by taking the soil of the original producing area to carry out the screening and chemical adding mixing mode, and carry out the uniform covering type treatment by scattering the soil layer to the original field, and simultaneously effectively reduce the influence on the crop production.
Description
Technical Field
The invention belongs to the technical field of environmental protection, and particularly relates to environmental-friendly soil pollution screening and treating equipment.
Background
The soil is a loose surface layer which has fertility on the surface of the land and can grow plants, the thickness of the soil is about 2 m generally, pollutants generated by artificial activities enter the soil and accumulate to a certain degree to cause the quality of the soil to be deteriorated, and further, the phenomenon that certain indexes in crops exceed national standards is caused, the soil pollution is called soil pollution, the soil pollutants can be roughly divided into two categories, namely inorganic pollutants and organic pollutants, wherein the inorganic pollutants mainly comprise acid, alkali, heavy metals, salts, compounds of radioactive elements cesium and strontium, compounds containing arsenic, selenium and fluorine, and the like.
For the phenomenon of soil pollution, related national departments also pay attention to the phenomenon for a long time, the society also pays attention to the phenomenon generally, and soil treatment has various types, and the soil treatment is generally carried out by means of insecticide spraying or ploughing, but the difficulty is poor in regulating productivity and protection, and if the method and the time are not used properly, both the method and the time are probably not expected and form a vicious circle.
Therefore, an environment-friendly soil pollution screening and treating device is provided to solve the problems.
Disclosure of Invention
The invention aims to solve the problems and provides environment-friendly soil pollution screening and treating equipment which can reduce the influence on crop production when soil of a field is treated.
In order to achieve the purpose, the invention adopts the following technical scheme: an environment-friendly soil pollution screening treatment device comprises a machine body shell and a spiral pusher, wherein the machine body shell is permeable up and down, the upper end of the machine body shell is coaxially and fixedly connected with a material containing frame matched with the upper end of the machine body shell, the material containing frame is positioned under a discharge port of the spiral pusher, a stirring mechanism is arranged in the material containing frame, a plurality of feed inlets which are communicated up and down are arranged at the lower end of the material containing frame, a feed pipe is arranged at the lower end of each feed inlet, the upper end of each feed pipe is fixedly connected with the lower end of the material containing frame, a notch is arranged on the side wall of one end, close to the machine body shell, of each feed pipe, a plurality of connecting holes are formed in one end, away from the notch, of each feed pipe, a material rotating mechanism is arranged in the machine body shell and fixedly connected with a plurality of feed pipes, and the upper, the lateral wall upper shed of engine body shell, the opening internal rotation is connected with the switch board that is used for gomphosis inlet pipe breach, engine body shell's lower extreme fixedly connected with supports the frame, the level runs through in the support frame and is equipped with fortune material conveyer belt.
In the above-mentioned environmental protection soil pollution screening treatment equipment, the lower port department section of engine body shell is the bowl mouth form.
In the environment-friendly soil pollution screening and treating device, the inner bottom of the material containing frame is in a bulge shape gathered towards the middle.
In foretell environmental protection soil pollution screening treatment equipment, rabbling mechanism includes that two set up and scrape piece and fixed connection that material frame and be central symmetry state each other in containing, the one end slope of scraping the piece sets up, fixedly connected with polylith toper spine on the inclined plane of scraping the piece.
In the above-mentioned environmental protection soil pollution screening treatment equipment, the material containing frame and the inside of scraping the piece all inlay and have the electric heating board.
In the above-mentioned environmental protection soil pollution screening treatment equipment, the material rotating mechanism comprises a fixed block arranged in the machine body shell, a plurality of fixed rods are fixedly connected on the side wall of the fixed block, one ends of the fixed rods far away from the fixed block are fixedly connected with the inner wall of the machine body shell, a cavity is arranged in the fixed block, a driving motor is fixedly connected in the cavity, a rotating rod is coaxially and fixedly connected on the driving shaft of the driving motor, the upper end of the rotating rod penetrates through the inner top surface of the cavity and extends to the outside of the cavity, the upper end of the rotating rod penetrates through the material containing frame and is coaxially and fixedly connected with the centers of the two scraping blocks, a plurality of first bevel gears are coaxially and fixedly connected on the rotating rod, a plurality of second bevel gears are obliquely meshed on the first bevel gears, and one ends of the second bevel, the card feed cylinder is the fretwork form, the card feed cylinder endotheca is equipped with and strains a section of thick bamboo, fixedly connected with sleeve in the breach of inlet pipe, the one end that the sleeve is close to the card feed cylinder is equipped with annular spout, be equipped with a plurality of assorted sliders rather than in the annular spout, it is a plurality of the one end lateral wall of slider all with the one end lateral wall fixed connection who blocks the feed cylinder, the bottom edge fixedly connected with stock guide of card feed cylinder is kept away from to the sleeve, the dwang overcoat is equipped with the safety cover, the upper and lower both ends of safety cover respectively with the lower extreme of flourishing material frame and the upper end.
In the environment-friendly soil pollution screening and treating equipment, the inner wall of the filter cylinder is fixedly connected with a plurality of decomposing tooth cones.
In foretell environmental protection soil pollution screening treatment equipment, driving motor is biax driving motor, driving motor keeps away from the one end drive epaxial coaxial fixedly connected with connecting rod of dwang, the lower extreme of connecting rod runs through the cavity and extends to its outside, the coaxial fixedly connected with rotating vane of lower extreme of connecting rod.
Compared with the prior art, the environmental protection soil pollution screening treatment equipment has the advantages that:
1. according to the invention, through the matching of the driving motor, the clamping cylinder, the filter cylinder and the decomposition tooth cone, the effect of driving the filter cylinders to rotate through one driving motor is achieved, and meanwhile, the rotation of the filter cylinders is matched with the decomposition tooth cone, so that sundries and medicines can be effectively screened and mixed for a certain amount of sample soil layers, and the operation efficiency and the effect of soil treatment in the future are effectively improved.
2. The invention achieves the effect that soil blocks larger than the aperture of the feeding hole can be gradually crushed and pushed to the interior of the feeding pipe by the rotation of the scraping block through the matching of the arranged scraping block, the electric heating plate and the rotating blades, meanwhile, the heating plate heats and evaporates water on the soil in the feeding pipe in the rotation process of the heating plate, the phenomena of bonding and the like in the movement process are reduced, and the rotating blades can also effectively buffer the naturally falling soil and prevent the naturally falling soil from splashing randomly when the rotating blades fall.
Drawings
FIG. 1 is a schematic external structural view of an embodiment 1 of the environmental-friendly soil pollution screening and treating device provided by the invention;
FIG. 2 is a perspective view of FIG. 1;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 2 at A;
FIG. 5 is an enlarged view of a portion of FIG. 2 at B;
FIG. 6 is a schematic view of the feed tube configuration of FIG. 2;
FIG. 7 is a perspective view of an embodiment 2 of the environmental soil pollution screening and remediation device provided by the invention.
In the figure, 1 a machine body shell, 2 spiral pushers, 3 material containing frames, 4 stirring mechanisms, 5 material inlet ports, 6 material inlet pipes, 7 material rotating mechanisms, 8 switch plates, 9 supporting racks, 10 material conveying conveyor belts, 11 scraping blocks, 12 electric heating plates, 13 fixing blocks, 14 fixing rods, 15 driving motors, 16 rotating rods, 17 first bevel gears, 18 second bevel gears, 19 material clamping cylinders, 20 material filtering cylinders, 21 sleeves, 22 annular chutes, 23 sliding blocks, 24 material guiding plates, 25 protective covers, 26 decomposing tooth cones, 27 connecting rods and 28 rotating blades.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Example 1
As shown in fig. 1-4, an environmental protection soil pollution screening treatment equipment comprises a machine body shell 1 and a spiral pusher 2, wherein the spiral pusher 2 is used for sending soil raw materials and a repairing agent into a material containing frame 3, the machine body shell 1 is in a through shape from top to bottom, the cross section of the lower end port of the machine body shell 1 is in a bowl mouth shape and used for better guiding and collecting the materials, the upper end of the machine body shell 1 is coaxially and fixedly connected with the material containing frame 3 matched with the machine body shell, the inner bottom of the material containing frame 3 is in a bulge shape gathered towards the middle to prevent soil from being excessively accumulated at the central part and not falling into a material inlet 5, the material containing frame 3 is located under the discharge port of the spiral pusher 2 and used for receiving the materials, and a stirring mechanism 4 is arranged in the material containing frame 3.
The stirring mechanism 4 comprises two scraping blocks 11 which are arranged in the material containing frame 3 and are in a central symmetry state mutually and fixedly connected, one end of each scraping block 11 is obliquely arranged to push soil to better enter the feeding hole 6, a plurality of conical spines are fixedly connected to the inclined surface of each scraping block 11 to decompose and crush large soil blocks, electric heating plates 12 are embedded in the material containing frame 3 and the scraping blocks 11 to ensure that moisture in the soil is evaporated and prevented from adhering to the inner wall of the material containing frame 3 or the inner wall of the feeding pipe 6, a plurality of feeding holes 5 which are communicated up and down are arranged at the lower end of the material containing frame 3, a feeding pipe 6 is arranged at the lower end of each feeding hole 5, the upper end of the feeding pipe 6 is fixedly connected with the lower end of the material containing frame 3, a notch is arranged on the side wall of one end, close to the machine body shell 1, of the feeding pipe 6 and is used for an operator to take, the end of the feed pipe 6 far away from the gap is provided with a plurality of connecting holes.
Be equipped with in engine body shell 1 and expect mechanism 7 soon, expect mechanism 7 soon and the equal fixed connection of many inlet pipes 6, expect mechanism 7 soon the upper end run through the bottom of flourishing material frame 3 and with 4 fixed connection of rabbling mechanism, expect mechanism 7 soon including setting up fixed block 13 in engine body shell 1, a plurality of dead levers 14 of fixedly connected with on the lateral wall of fixed block 13, the one end of fixed block 13 and engine body shell 1's inner wall fixed connection are kept away from to dead lever 14, be equipped with the cavity in the fixed block 13, be equipped with a plurality of louvres on the inner wall of cavity, fixedly connected with driving motor 15 in the cavity, coaxial fixedly connected with dwang 16 in driving motor 15's the drive shaft, the upper end of dwang 16 runs through the interior top surface of cavity and extends to its outside, the upper end of dwang 16 run through flourishing material frame 3 and with two coaxial fixed connection.
A plurality of first bevel gears 17 of coaxial fixedly connected with on the dwang 16, it has a plurality of second bevel gears 18 to slope meshing on first bevel gear 17, the coaxial fixedly connected with card feed cylinder 19 of one end that first bevel gear 17 was kept away from to second bevel gear 18, card feed cylinder 19 is the fretwork form, card feed cylinder 19 endotheca is equipped with and strains a section of thick bamboo 20, dwang 16 rotates and also can drive first bevel gear 17 and rotate simultaneously, thereby drive second bevel gear 18 and rotate, make the material leak through its gap straining a section of thick bamboo 20 and constantly rotating, many decomposition tooth awl 26 of fixedly connected with on straining a section of thick bamboo 20's the inner wall, it can be constantly assaulted it at the pivoted in-process and make its decomposition fall out, also can make its and soil remediation medicament more even mixture simultaneously.
A sleeve 21 is fixedly connected in the gap of the feeding pipe 6, one end of the sleeve 21 close to the material clamping barrel 19 is provided with an annular chute 22, the annular chute 22 is internally provided with a plurality of sliders 23 matched with the annular chute, one end side walls of the sliders 23 are fixedly connected with one end side wall of the material clamping barrel 19, the bottom edge of the sleeve 21 far away from the material clamping barrel 19 is fixedly connected with a material guide plate 24 for receiving materials in the feeding pipe 6, a protective cover 25 is sleeved outside the rotating rod 16, the upper end and the lower end of the protective cover 25 are respectively fixedly connected with the lower end of the material containing frame 3 and the upper end of the fixed block 13, the side wall of the machine body shell 1 is opened, a switch plate 8 for embedding the gap of the feeding pipe 6 is rotatably connected in the opening, the lower end of the machine body shell 1 is fixedly connected with a supporting frame 9, a material conveying conveyor belt 10 is horizontally arranged in the, and then spreading the soil conditioner in a soil field needing to be repaired.
In the invention, when in use, an operator firstly mixes untreated soil and a soil remediation agent and puts the mixture into the spiral pusher 2, the mixture is fed into the material containing frame 3 by the spiral pusher 2, then the driving motor 15 rotates to drive the rotating rod 16 to rotate, so that the scraping block 11 continuously pushes and impacts the soil blocks in the material containing frame to facilitate the soil blocks to better fall into the feeding port 5, the electric heating plate 12 works at the same time, water in the soil is evaporated to prevent the water from adhering to the inner wall of the material containing frame 3 or the inner wall of the feeding pipe 6, the material falling into the feeding pipe 6 is transferred into a plurality of filter cylinders 20 after passing through a plurality of material guide plates 24, the rotating rod 16 can drive the first bevel gear 17 to rotate at the same time, so as to drive the second bevel gear 18 to rotate, the material continuously rotates in the filter cylinders 20 and leaks out through gaps thereof, and the impurities with large volume are left in the filter cylinders, and for the soil, the decomposition tooth cone 26 can continuously impact the soil in the rotating process to decompose and fall out, meanwhile, the soil and the soil remediation agent can be mixed more uniformly, the fallen mixed soil falls into the conveying conveyor belt 10 below to be collected and stored, and then the soil is spread in a soil field needing to be remedied, an operator can open the switch board 8 to take the filter cylinder 20 out of the material clamping cylinder 19 to clean impurities in the filter cylinder so as to keep the filter cylinder clean and can be used repeatedly.
Example 2
The difference from example 1 is that:
the driving motor 15 is a double-shaft driving motor, the driving motor 15 is provided with a connecting rod 27 which is coaxially and fixedly connected with one end of the driving shaft far away from the rotating rod 13, the lower end of the connecting rod 27 penetrates through the cavity and extends to the outside of the cavity, and the lower end of the connecting rod 27 is coaxially and fixedly connected with a rotating blade 28.
Compared with the above embodiment 1, the advantages are:
can carry out effectual buffering to a large amount of soil that fall, make it can not excessively splash at the in-process that falls because of the action of gravity to pop out outside fortune material conveyer belt 10, cause the material loss.
Although the terms of the machine body housing 1, the spiral pusher 2, the material containing frame 3, the stirring mechanism 4, the material inlet 5, the material inlet pipe 6, the material rotating mechanism 7, the switch plate 8, the supporting frame 9, the material conveying belt 10, the scraping block 11, the electric heating plate 12, the fixing block 13, the fixing rod 14, the driving motor 15, the rotating rod 16, the first bevel gear 17, the second bevel gear 18, the material clamping cylinder 19, the filter cylinder 20, the sleeve 21, the annular chute 22, the sliding block 23, the material guide plate 24, the protective cover 25, the decomposing tooth cone 26, the connecting rod 27 and the rotating blade 28 are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (8)
1. The environment-friendly soil pollution screening and treating equipment comprises a machine body shell (1) and a spiral pusher (2), and is characterized in that the machine body shell (1) is permeable up and down, the upper end of the machine body shell (1) is connected with a material containing frame (3) matched with the upper end of the machine body shell in a coaxial and fixed mode, the material containing frame (3) is located under a discharge port of the spiral pusher (2), a stirring mechanism (4) is arranged in the material containing frame (3), the lower end of the material containing frame (3) is provided with a plurality of feed inlets (5) which are communicated up and down, the lower end of each feed inlet (5) is provided with a feed pipe (6), the upper end of each feed pipe (6) is fixedly connected with the lower end of the material containing frame (3), one end of each feed pipe (6) close to the machine body shell (1) is provided with a notch, one end of each feed pipe (6) far away, be equipped with in engine body shell (1) and expect mechanism (7) soon, expect mechanism (7) soon and many equal fixed connection of inlet pipe (6), the upper end of expecting mechanism (7) soon runs through the bottom of expecting frame (3) greatly and with rabbling mechanism (4) fixed connection, the lateral wall upper shed of engine body shell (1), the open-ended internal rotation is connected with switch board (8) that are used for gomphosis inlet pipe (6) breach, the lower extreme fixedly connected with support frame (9) of engine body shell (1), the level runs through and is equipped with fortune material conveyer belt (10) in support frame (9).
2. The environmental protection soil pollution screening treatment equipment according to claim 1, wherein the cross section of the lower end port of the machine body shell (1) is bowl-shaped.
3. The environmental protection soil pollution screening treatment equipment according to claim 1, wherein the inner bottom of the material containing frame (3) is in a bulge shape gathered towards the middle.
4. The environmental-friendly soil pollution screening and treating device according to claim 1, wherein the stirring mechanism (4) comprises two scraping blocks (11) which are arranged in the material containing frame (3) and are in a central symmetry state with each other and are fixedly connected, one end of each scraping block (11) is arranged in an inclined manner, and a plurality of conical spines are fixedly connected to the inclined surface of each scraping block (11).
5. The environmental protection soil pollution screening treatment equipment according to claim 4, wherein the material containing frame (3) and the scraping block (11) are embedded with electric heating plates (12).
6. The environmental-friendly soil pollution screening and treating device according to claim 4, wherein the material rotating mechanism (7) comprises a fixed block (13) arranged in the machine body shell (1), the side wall of the fixed block (13) is fixedly connected with a plurality of fixed rods (14), one ends of the fixed rods (14) far away from the fixed block (13) are fixedly connected with the inner wall of the machine body shell (1), a cavity is arranged in the fixed block (13), a driving motor (15) is fixedly connected in the cavity, a rotating rod (16) is coaxially and fixedly connected to the driving shaft of the driving motor (15), the upper end of the rotating rod (16) penetrates through the inner top surface of the cavity and extends to the outside of the cavity, the upper end of the rotating rod (16) penetrates through the material containing frame (3) and is coaxially and fixedly connected with the centers of the two scraping blocks (11), and a plurality of first bevel gears (17) are coaxially and fixedly connected to the rotating rod (16, first bevel gear (17) is inclined to tilt up and is engaged with a plurality of second bevel gears (18), the coaxial fixedly connected with card feed cylinder (19) of one end of first bevel gear (17) is kept away from in second bevel gear (18), card feed cylinder (19) are the fretwork form, card feed cylinder (19) endotheca is equipped with and is strained a section of thick bamboo (20), fixedly connected with sleeve (21) in the breach of inlet pipe (6), sleeve (21) are close to the one end of card feed cylinder (19) and are equipped with annular chute (22), be equipped with a plurality of assorted slider (23) with it in annular chute (22), and are a plurality of the one end lateral wall of slider (23) all with the one end lateral wall fixed connection of card feed cylinder (19), the bottom edge fixedly connected with stock guide (24) of card feed cylinder (19) are kept away from sleeve (21), dwang (16) overcoat is equipped with safety cover (25), the upper and lower extreme of safety cover (25) respectively with the lower extreme of flourishing material frame ( The upper ends are fixedly connected.
7. The environmental protection soil pollution screening treatment equipment according to claim 6, wherein a plurality of decomposing tooth cones (26) are fixedly connected to the inner wall of the filter cylinder (20).
8. The environmental protection soil pollution screening treatment equipment according to claim 6, wherein the driving motor (15) is a double-shaft driving motor, a connecting rod (27) is coaxially and fixedly connected to a driving shaft at one end of the driving motor (15) far away from the rotating rod (13), the lower end of the connecting rod (27) penetrates through the chamber and extends to the outside of the chamber, and a rotating blade (28) is coaxially and fixedly connected to the lower end of the connecting rod (27).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911141540.0A CN110695081B (en) | 2019-11-20 | 2019-11-20 | Environmental protection soil pollution screening treatment equipment |
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| CN201911141540.0A CN110695081B (en) | 2019-11-20 | 2019-11-20 | Environmental protection soil pollution screening treatment equipment |
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| CN110695081A true CN110695081A (en) | 2020-01-17 |
| CN110695081B CN110695081B (en) | 2021-09-17 |
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| CN114570470A (en) * | 2022-03-21 | 2022-06-03 | 衡阳市建衡实业有限公司 | Grinding device is used in production of likepowder alum |
| CN114609326A (en) * | 2022-05-16 | 2022-06-10 | 成都理工大学 | A measuring apparatu for geochemical test's baseline |
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| CN111571678A (en) * | 2020-05-16 | 2020-08-25 | 青岛汇通木业有限公司 | Infrared double-side edge trimmer |
| CN114570470A (en) * | 2022-03-21 | 2022-06-03 | 衡阳市建衡实业有限公司 | Grinding device is used in production of likepowder alum |
| CN114570470B (en) * | 2022-03-21 | 2023-03-24 | 衡阳市建衡实业有限公司 | Grinding equipment is used in production of likepowder alum |
| CN114609326A (en) * | 2022-05-16 | 2022-06-10 | 成都理工大学 | A measuring apparatu for geochemical test's baseline |
| CN114609326B (en) * | 2022-05-16 | 2022-08-02 | 成都理工大学 | A measuring apparatu for geochemical test's baseline |
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