CN112517625A - Farmland is with electronic soil heavy metal removal equipment - Google Patents
Farmland is with electronic soil heavy metal removal equipment Download PDFInfo
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- CN112517625A CN112517625A CN202110000904.4A CN202110000904A CN112517625A CN 112517625 A CN112517625 A CN 112517625A CN 202110000904 A CN202110000904 A CN 202110000904A CN 112517625 A CN112517625 A CN 112517625A
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- pipe
- conduction
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- pyrolysis
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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
- B09C1/06—Reclamation of contaminated soil thermally
- B09C1/065—Reclamation of contaminated soil thermally by pyrolysis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/0804—Cleaning containers having tubular shape, e.g. casks, barrels, drums
- B08B9/0808—Cleaning containers having tubular shape, e.g. casks, barrels, drums by methods involving the use of tools, e.g. by brushes, scrapers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses an electric soil heavy metal removing device for a farmland, which structurally comprises a feed hopper, a pyrolysis device, a gas collecting tank, a condenser and a discharge hopper, wherein the lower end of the feed hopper is fixedly embedded at the upper end of the pyrolysis device and communicated with the pyrolysis device, heat is discharged into a sealing sleeve through the operation of a heater, so that a long conducting rod can stably rotate in the sealing sleeve and can be conducted into the long conducting rod, the heat is dispersed by a heat conducting pipe, the temperature of the whole heavy metal elements in the soil is increased to pyrolysis, the heat is conducted into a fixed sleeve through a conducting hole in the sealing pipe, the long conducting rod drives the sealing pipe to rotate, an extrusion pipe can perform extrusion regulation in the fixed sleeve, the heat is dispersed onto the heat conducting rod through the conducting pipe, the heat conducting effect of the heat conducting rod contacting with the soil is improved, the effect of scraping the soil on the inner wall of the pyrolysis tank is, avoid soil to bond at the pyrolysis tank inner wall.
Description
Technical Field
The invention relates to the field of land remediation and finishing, in particular to an electric soil heavy metal removing device for a farmland.
Background
The method mainly comprises two approaches for treating the heavy metal pollution of the soil, namely, the existing state of the heavy metal in the soil is changed, and the heavy metal is converted from an activated state to a stable state; secondly, heavy metals are removed from the soil, a physical and chemical method which is a thermal desorption method is commonly adopted, the soil is heated to desorb volatile heavy metals from the soil, but after the soil is placed in a pyrolysis tank, the soil is easy to accumulate in the pyrolysis tank, so that the heat conduction capability of the whole soil is reduced, the heating temperature of the middle part of the soil is lower, partial heavy metal elements in the soil are difficult to reach the pyrolysis temperature, the pyrolysis effect of the heavy metal elements in the soil is reduced, and meanwhile, the soil close to the inner wall of the tank body is heated, loses moisture and is easy to adhere to the surface of the inner wall of the tank body, so that the soil loses the fertility of the soil and seriously damages the quality of the soil.
Disclosure of Invention
The technical scheme adopted by the invention for realizing the technical purpose is as follows: the electric soil heavy metal removing equipment for the farmland structurally comprises a feed hopper, a pyrolysis device, a gas collecting tank, a condenser and a discharge hopper, wherein the lower end of the feed hopper is fixedly installed at the upper end of the pyrolysis device and communicated with the pyrolysis device, the pyrolysis device is connected with the top of the gas collecting tank through a pipeline, the condenser is arranged at the right end of the gas collecting tank, the discharge hopper is arranged at the lower end of the pyrolysis device and communicated with the pyrolysis device, the pyrolysis device comprises a pyrolysis tank, a heater, a motor, a conduction device and a stirring device, the lower end of the feed hopper is fixedly installed at the upper end of the pyrolysis tank and communicated with the pyrolysis tank, the heater is arranged at the left end of the pyrolysis tank, the motor is installed at the right end of the pyrolysis tank, the output end of the motor and the right end of the conduction device synchronously rotate, the stirring device is arranged at the outer side of, the stirring devices are three in number and are distributed outside the conduction device at equal intervals.
As a further improvement of the invention, the conduction device comprises a sealing device, a conduction long rod, a bump and a toggle mechanism, wherein the left end of the sealing device is fixedly arranged at the left side of the inner wall of the pyrolysis tank, the inside of the sealing device is communicated with the heater, the left end of the conduction long rod is arranged in the sealing device, the bump is arranged on the inner wall of the conduction long rod, the inner side end of the toggle mechanism is arranged in the conduction long rod, the conduction long rod penetrates through the inside of the middle end of the stirring device, the bump is of a hemispherical structure, twenty-four bumps are arranged, and two bumps are arranged in one group and are respectively arranged in the connecting positions of the twenty-four.
As a further improvement of the invention, the sealing device comprises a sealing sleeve, a rotating disc and sealing rings, wherein the left end of the sealing sleeve is fixedly arranged on the left side of the inner wall of the pyrolysis tank, the rotating disc is arranged on the inner wall of the sealing sleeve in a clearance fit manner, the right end of the rotating disc is welded with the long conducting rod, the two sealing rings are arranged at the joint of the long conducting rod and the sealing sleeve, and are respectively arranged on the inner wall and the outer wall of the right side of the sealing sleeve, and the sealing rings are made of metal rubber sealing rings, so that the sealing device has the characteristics of high and low temperature resistance.
As a further improvement of the present invention, the toggle mechanism includes a heat conducting block, heat conducting pipes, and an outer support frame, the heat conducting block is fixedly installed inside the long conducting rod, and the heat conducting block is welded to the inner side end of the heat conducting pipe, the heat conducting pipes are fixedly installed inside the outer support frame, and the inner side end of the outer support frame is welded to the outer wall of the long conducting rod, the number of the heat conducting blocks is four, and the heat conducting blocks are respectively connected to the four heat conducting pipes, and the heat conducting pipes are in a fan-shaped branch pipe structure, distributed inside the fan-shaped outer support frame, and connected to the outer support frame.
As a further improvement of the invention, the stirring device comprises a sealing pipe, a transmission hole, a fixed pipe sleeve, an extrusion pipe and a wall scraping mechanism, wherein the long transmission rod penetrates through the sealing pipe, the transmission hole penetrates through the inner wall of the sealing pipe, the outer wall of the sealing pipe is welded with the inner end of the fixed pipe sleeve, the inner end of the extrusion pipe is arranged in the outer end of the fixed pipe sleeve in a clearance fit manner, the outer end of the extrusion pipe is provided with the wall scraping mechanism, the outer surface of the wall scraping mechanism is abutted against the inner wall of the pyrolysis tank, the transmission hole is of a cavity structure with a wide inlet and a narrow outlet, the fixed pipe sleeve is also internally provided with a spring, and the extrusion pipe can be stretched and contracted through the extrusion of.
The wall scraping mechanism comprises a wall scraping plate, a branch guide pipe, a heat conducting rod and scraping plates, wherein the outer side end of an extrusion pipe is welded with the inner side surface of the wall scraping plate, the extrusion pipe is communicated with the inner part of the branch guide pipe, the branch guide pipe is connected with the heat conducting rod, the heat conducting rod is fixedly embedded in the inner side surface of the wall scraping plate, the scraping plates are arranged on the outer side surface of the wall scraping plate and are abutted against the inner wall of a pyrolysis tank, the wall scraping plate is of an arc-shaped structure, the heat conducting rods are provided with four heat conducting rods which are connected with the inner part of the branch guide pipe, the scraping plates are provided with five scraping plates which are arranged in an inclined angle, and contact ends of the scraping plates and the inner wall.
The invention has the beneficial effects that:
1. the conduction stock is when carrying out the pivoted, through heater work, with the heat inside the seal cover pipe of discharging for inside the conduction stock carries out steady pivoted heat conduction when the seal cover pipe is inside enters into the conduction stock, and the heat pipe disperses the heat, improves the area that carries out the contact with soil, ensures that soil wholly carries out even heating, improves the inside holistic heavy metal element of soil and reaches the temperature of pyrolysis.
2. Inside the heat entered into fixed pipe box from the inside conduction hole conduction of sealed tube, the conduction stock had driven the sealed tube and has rotated, and the extrusion pipe is adjusted in fixed inside the pipe box extrusion, and the heat disperses the heat conduction pole through the branch pipe on, improves the heat conduction pole and contacts the heat conduction effect with soil, improves the effect of scraping under carrying out the soil of pyrolysis tank inner wall through the doctor-bar, avoids soil bonding at the pyrolysis tank inner wall.
Drawings
FIG. 1 is a schematic structural diagram of an electric soil heavy metal removal device for farmlands according to the present invention.
FIG. 2 is a schematic view of the internal structure of a pyrolysis apparatus according to the present invention.
Fig. 3 is a partial structural schematic view of a conduction device of the present invention.
Fig. 4 is a schematic view of a sealing device according to the present invention, partially enlarged at a point a.
Fig. 5 is a schematic side view of a toggle mechanism according to the present invention.
FIG. 6 is a schematic side view of the internal structure of a stirring device of the present invention.
Fig. 7 is a schematic cross-sectional view of a wall scraping mechanism according to the present invention.
In the figure: the device comprises a feed hopper-1, a pyrolysis device-2, a gas collecting tank-3, a condenser-4, a discharge hopper-5, a pyrolysis tank-21, a heater-22, a motor-23, a conduction device-24, a stirring device-25, a sealing device-241, a long conduction rod-242, a bump-243, a toggle mechanism-244, a sealing sleeve-41 a, a rotating disc-41 b, a sealing ring-41 c, a heat conduction block-44 a, a heat conduction pipe-44 c, an outer support frame-44 b, a sealing pipe-25 a, a conduction hole-25 b, a fixed pipe sleeve-25 c, an extrusion pipe-25 d, a wall scraping mechanism-25 e, a wall scraping plate-e 1, a branch guide pipe-e 2, a heat conduction rod-e 3 and a scraping blade-e 4.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
example 1:
as shown in figures 1 to 5:
the invention relates to an electric soil heavy metal removing device for a farmland, which structurally comprises a feed hopper 1, a pyrolysis device 2, a gas collecting tank 3, a condenser 4 and a discharge hopper 5, wherein the lower end of the feed hopper 1 is fixedly installed at the upper end of the pyrolysis device 2 and communicated with the upper end of the pyrolysis device 2, the pyrolysis device 2 is connected with the top of the gas collecting tank 3 through a pipeline, the condenser 4 is arranged at the right end of the gas collecting tank 3, the discharge hopper 5 is arranged at the lower end of the pyrolysis device 2 and communicated with the lower end of the pyrolysis device 2, the pyrolysis device 2 comprises a pyrolysis tank 21, a heater 22, a motor 23, a conduction device 24 and a stirring device 25, the lower end of the feed hopper 1 is fixedly installed at the upper end of the pyrolysis tank 21 and communicated with the upper end of the pyrolysis tank 21, the heater 22 is arranged at the left end of the pyrolysis tank 21, the motor 23, and 24 left ends of conduction device link up mutually with heater 22, agitating unit 25 outside end is inconsistent with pyrolysis tank 21 inner wall, agitating unit 25 is equipped with threely altogether, and the equidistance distributes in the 24 outsides of conduction device, ensures that conduction device 24 drives three agitating unit 25 and carries out synchronous rotation to improve agitating unit 25 and carry out abundant stirring to the inside holistic soil of pyrolysis tank 21, improve the whole inside heat conductivity of soil.
The conduction device 24 comprises a sealing device 241, a conduction long rod 242, a bump 243 and a toggle mechanism 244, wherein the left end of the sealing device 241 is fixedly installed on the left side of the inner wall of the pyrolysis tank 21, the inside of the sealing device 241 is communicated with the heater 22, the left end of the conduction long rod 242 is installed inside the sealing device 241, the inner wall of the conduction long rod 242 is provided with the bump 243, the inner end of the toggle mechanism 244 is installed inside the conduction long rod 242, the conduction long rod 242 penetrates through the middle end of the stirring device 25, the bump 243 is of a hemispherical structure and is provided with twenty-four bumps, the two bumps are a group and are respectively arranged inside the joints of the twenty-four toggle mechanisms 244 and the conduction long rod 242, so that the joints of the conduction long rod 242 and the toggle mechanisms 244 are reduced in space, and heat is improved.
Wherein, sealing device 241 includes sealed sleeve pipe 41a, rolling disc 41b, sealing washer 41c, sealed sleeve pipe 41a left end fixed mounting is on the left of pyrolysis tank 21 inner wall to rolling disc 41b adopts clearance fit to install at sealed sleeve pipe 41a inner wall, rolling disc 41b right-hand member welds with conduction stock 242 mutually, conduction stock 242 is equipped with sealing washer 41c with sealed sleeve pipe 41a junction, sealing washer 41c is equipped with two altogether, establishes respectively at sealed sleeve pipe 41a right side inner wall and outer wall, and sealing washer 41c adopts the metal rubber seal circle material, has resistant high and low temperature, corrosion-resistant characteristics, ensures that pyrolysis tank 21 is inside when carrying out high temperature work, and sealing washer 41c can not take place to warp, can not cause the corruption by the heavy metal simultaneously, ensures to carry out heat sealing conduction between sealed sleeve pipe 41a and the conduction of conduction stock 242.
Wherein, the toggle mechanism 244 comprises a heat conducting block 44a, a heat conducting pipe 44c, and an outer support frame 44b, the heat conducting block 44a is fixedly installed inside the long conducting rod 242, and the heat conduction block 44a is welded with the inner end of the heat conduction pipe 44c, the heat conduction pipe 44c is fixedly installed inside the outer support frame 44b, and the inner ends of the outer support frames 44b are welded with the outer wall of the long conducting rods 242, the number of the heat conducting blocks 44a is four, and are respectively connected with four heat conduction pipes 44c, the heat conduction pipes 44c are in a fan-shaped branch pipe structure, are distributed inside the fan-shaped outer support frame 44b, the four heat conduction pipes 44c and the outer support frame 44b on the periphery improve the effect of contact stirring on the soil, meanwhile, the area of direct contact between heat and soil is increased, the soil is guaranteed to be heated uniformly, and the temperature for pyrolysis of the whole heavy metal elements in the soil is increased.
The specific use mode and function of the embodiment are as follows:
in the invention, soil is put in from the feed hopper 1, the soil enters the pyrolysis tank 21, the motor 23 is started, so that the long conducting rod 242 is driven to rotate, the long conducting rod 242 rotates and discharges heat into the sealing sleeve 41a through the work of the heater 22, the sealing ring 41c plays a role of sealing at the same time, so that the long conducting rod 242 conducts heat into the long conducting rod 242 while stably rotating in the sealing sleeve 41a, the heat is improved to enter and contact with the heat conducting block 44a through the extrusion of the convex block 243, so that the heat is discharged into the heat conducting pipe 44c, a certain stirring effect is achieved through the outer frame 44b, and meanwhile, the heat is dispersed by the outer frame 44c, the contact area with the soil is improved, the uniform heating of the whole soil is ensured, and the whole heavy metal elements in the soil reach the pyrolysis temperature, heavy metal inside the soil through pyrolysis volatilizes into gas, and inside gas entering gas collecting tank 3 condensed through condenser 4 to form liquid and deposit in gas collecting tank 3 bottom.
Example 2:
as shown in fig. 6 to 7:
wherein, the stirring device 25 comprises a sealing pipe 25a, a conduction hole 25b, a fixed pipe sleeve 25c, an extrusion pipe 25d and a wall scraping mechanism 25e, the conduction long rod 242 penetrates through the sealing pipe 25a, the inner wall of the sealing pipe 25a penetrates through a conduction hole 25b, the outer wall of the sealing pipe 25a is welded with the inner side end of the fixed pipe sleeve 25c, the inner side end of the extrusion pipe 25d is arranged in the outer side end of the fixed pipe sleeve 25c in a clearance fit manner, the outer side end of the extrusion pipe 25d is provided with the wall scraping mechanism 25e, the outer side surface of the wall scraping mechanism 25e is contacted with the inner wall of the pyrolysis tank 21, the conduction hole 25b is in a cavity structure with a wide inlet and a narrow outlet, which is beneficial to conducting the heat in the sealing pipe 25a to the inner part of the fixed pipe sleeve 25c, the fixed pipe sleeve 25c is also provided with a spring, and the extrusion of, the conflict ability of scraping wall mechanism 25e and pyrolysis tank 21 inner wall is improved, the soil with pyrolysis tank 21 inner wall is ensured to be scraped, and soil is prevented from bonding on pyrolysis tank 21 inner wall.
The wall scraping mechanism 25e comprises a scraping plate e1, a branch conduit e2, a heat conducting rod e3 and a scraping blade e4, the outer end of the extrusion tube 25d is welded with the inner side surface of the scraping plate e1, the extrusion tube 25d is communicated with the inner side of the branch conduit e2, the branch conduit e2 is connected with the heat conducting rod e3, the heat conducting rod e3 is embedded and fixedly installed on the inner side surface of the scraping plate e1, the scraping blade e4 is arranged on the outer side surface of the scraping plate e1, the scraping blade e4 is in contact with the inner wall of the pyrolysis tank 21, the scraping plate e1 is of an arc structure and is in fit with the inner wall of the pyrolysis tank 21, the heat conducting rods e3 are four in number and are connected with the inner side of the branch conduit e2 to ensure that heat in the branch conduit e2 is dispersed and conducted, so as to improve the contact heat conduction effect on soil, the scraping blade e4 is provided with five scraping blades which are installed in an inclined angle, and the inner wall of the pyrolysis, the effect of scraping soil from the inner wall of the pyrolysis tank 21 is improved, and meanwhile, scratches on the inner wall of the pyrolysis tank 21 are avoided.
The specific use mode and function of the embodiment are as follows:
in the invention, when the long conducting rod 242 conducts heat and rotates, heat is conducted from the conducting hole 25b in the sealing pipe 25a to enter the fixed pipe sleeve 25c, the heat is conducted to the inside of the wall scraping mechanism 25e through the fixed pipe sleeve 25c and the extruding pipe 25d, meanwhile, the long conducting rod 242 drives the sealing pipe 25a to rotate, so that the extruding pipe 25d conducts extrusion regulation in the fixed pipe sleeve 25c, the wall scraping plate e1 is attached to the inner wall of the pyrolysis tank 21, the heat is dispersed to the heat conducting rod e3 through the partial conduit e2, the contact heat conducting effect of the heat conducting rod e3 and soil is improved, heavy metals in the soil are ensured to be pyrolyzed and volatilized, the effect of scraping the soil on the inner wall of the pyrolysis tank 21 downwards is improved through the scraper e4 in the process of rotating the wall scraping plate e1, the soil is prevented from being adhered to the inner wall of the pyrolysis tank 21, and the quality of the, while avoiding scratching the inner wall of the pyrolysis tank 21.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.
Claims (6)
1. The utility model provides an electronic soil heavy metal removal equipment is used in farmland, its structure includes feeder hopper (1), pyrolysis apparatus (2), gas collection tank (3), condenser (4), goes out hopper (5), feeder hopper (1) lower extreme is embedded solid and is installed in pyrolysis apparatus (2) upper end and link up mutually, pipe connection is passed through with gas collection tank (3) top in pyrolysis apparatus (2), gas collection tank (3) right-hand member is equipped with condenser (4), pyrolysis apparatus (2) lower extreme is equipped with out hopper (5) and link up mutually, its characterized in that:
pyrolysis device (2) are including pyrolysis jar (21), heater (22), motor (23), conduction device (24), agitating unit (25), feeder hopper (1) lower extreme is embedded to be installed in pyrolysis jar (21) upper end and link up mutually, pyrolysis jar (21) left end is equipped with heater (22) to motor (23) are installed to pyrolysis jar (21) right-hand member, motor (23) output and conduction device (24) right-hand member rotate in step, conduction device (24) outside is equipped with agitating unit (25) to conduction device (24) left end link up mutually with heater (22), agitating unit (25) outside end is inconsistent with pyrolysis jar (21) inner wall.
2. The electric soil heavy metal removing equipment for farmlands according to claim 1, characterized in that: the conduction device (24) comprises a sealing device (241), a conduction long rod (242), a protruding block (243) and a toggle mechanism (244), the left end of the sealing device (241) is fixedly installed on the left side of the inner wall of the pyrolysis tank (21), the inside of the sealing device (241) is communicated with the heater (22), the left end of the conduction long rod (242) is installed inside the sealing device (241), the protruding block (243) is arranged on the inner wall of the conduction long rod (242), the inner side end of the toggle mechanism (244) is installed inside the conduction long rod (242), and the conduction long rod (242) penetrates through the inside of the middle end of the stirring device (25).
3. The electric soil heavy metal removing equipment for farmlands according to claim 2, characterized in that: sealing device (241) is including sealed sleeve pipe (41 a), rolling disc (41 b), sealing washer (41 c), sealed sleeve pipe (41 a) left end fixed mounting is on pyrolysis tank (21) inner wall left side to rolling disc (41 b) adopt clearance fit to install at sealed sleeve pipe (41 a) inner wall, rolling disc (41 b) right-hand member welds mutually with conduction stock (242), conduction stock (242) and sealed sleeve pipe (41 a) junction are equipped with sealing washer (41 c).
4. The electric soil heavy metal removing equipment for farmlands according to claim 2, characterized in that: the toggle mechanism (244) comprises a heat conduction block (44 a), a heat conduction pipe (44 c) and an outer support frame (44 b), wherein the heat conduction block (44 a) is fixedly arranged inside the long conduction rod (242), the heat conduction block (44 a) is welded with the inner side end of the heat conduction pipe (44 c), the heat conduction pipe (44 c) is fixedly arranged inside the outer support frame (44 b), and the inner side end of the outer support frame (44 b) is welded with the outer wall of the long conduction rod (242).
5. The electric soil heavy metal removing equipment for farmlands according to claim 2, characterized in that: the stirring device (25) comprises a sealing pipe (25 a), a transmission hole (25 b), a fixed pipe sleeve (25 c), an extrusion pipe (25 d) and a wall scraping mechanism (25 e), wherein the transmission long rod (242) penetrates through the inside of the sealing pipe (25 a), the transmission hole (25 b) penetrates through the inner wall of the sealing pipe (25 a), the outer wall of the sealing pipe (25 a) is welded with the inner side end of the fixed pipe sleeve (25 c), the inner side end of the extrusion pipe (25 d) is installed inside the outer side end of the fixed pipe sleeve (25 c) in a clearance fit mode, the wall scraping mechanism (25 e) is arranged at the outer side end of the extrusion pipe (25 d), and the outer side surface of the wall scraping mechanism (25 e) is abutted to the inner wall of the pyrolysis tank (21).
6. The electric soil heavy metal removing equipment for farmlands according to claim 5, characterized in that: scrape wall mechanism (25 e) including scraping wallboard (e 1), branch pipe (e 2), heat conduction pole (e 3), doctor-blade (e 4), extrude pipe (25 d) outside end and scrape wallboard (e 1) inside surface and weld mutually to extrude pipe (25 d) and divide inside looks of pipe (e 2) to link up, divide pipe (e 2) to be connected with heat conduction pole (e 3), and heat conduction pole (e 3) embedded solid and install and scrape wallboard (e 1) inside surface, doctor-blade (e 4) are established and are scraped wallboard (e 1) outside surface, doctor-blade (e 4) and pyrolysis tank (21) inner wall are inconsistent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110000904.4A CN112517625A (en) | 2021-01-04 | 2021-01-04 | Farmland is with electronic soil heavy metal removal equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110000904.4A CN112517625A (en) | 2021-01-04 | 2021-01-04 | Farmland is with electronic soil heavy metal removal equipment |
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| CN112517625A true CN112517625A (en) | 2021-03-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113307467A (en) * | 2021-05-12 | 2021-08-27 | 贵阳学院 | Biological charcoal soil amendment apparatus for producing of mud |
| CN113398881A (en) * | 2021-05-27 | 2021-09-17 | 贵阳学院 | Sludge biochar preparation equipment for water pollution control |
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| CN111687187A (en) * | 2020-06-17 | 2020-09-22 | 苏州市绿韵园林工程有限公司 | Soil remediation equipment |
| CN111889495A (en) * | 2020-07-14 | 2020-11-06 | 诸暨华匠工程设计咨询有限公司 | Soil remediation thermal desorption equipment and process thereof |
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| CN113307467A (en) * | 2021-05-12 | 2021-08-27 | 贵阳学院 | Biological charcoal soil amendment apparatus for producing of mud |
| CN113398881A (en) * | 2021-05-27 | 2021-09-17 | 贵阳学院 | Sludge biochar preparation equipment for water pollution control |
| CN113398881B (en) * | 2021-05-27 | 2022-12-09 | 贵阳学院 | Sludge biochar preparation equipment for water pollution control |
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