CN110510843B - River silt heavy metal treatment facility - Google Patents
River silt heavy metal treatment facility Download PDFInfo
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- CN110510843B CN110510843B CN201910843457.1A CN201910843457A CN110510843B CN 110510843 B CN110510843 B CN 110510843B CN 201910843457 A CN201910843457 A CN 201910843457A CN 110510843 B CN110510843 B CN 110510843B
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- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 36
- 238000011282 treatment Methods 0.000 title claims abstract description 30
- 238000001179 sorption measurement Methods 0.000 claims abstract description 82
- 239000010802 sludge Substances 0.000 claims abstract description 60
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 57
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 57
- 239000010457 zeolite Substances 0.000 claims abstract description 57
- 238000003756 stirring Methods 0.000 claims abstract description 40
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 11
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 239000003795 chemical substances by application Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
- Accessories For Mixers (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a river channel sludge heavy metal treatment device, which comprises a mixing box, wherein a mixing cavity is arranged in the mixing box, an adsorption box is fixedly connected on the end surface of the lower side of the mixing box, an adsorption cavity communicated with the mixing cavity is arranged in the adsorption box, a mixing device for stirring and mixing is arranged in the mixing cavity, a feeding device is arranged on the end surface of the right side of the mixing cavity, a locking device is arranged on the lower side of the feeding device, a vibrating device is arranged in the adsorption cavity, an adsorption device positioned on the lower side of the vibrating device is arranged in the adsorption cavity, and the adsorption device adsorbs heavy metals in sludge through zeolite. Therefore, the invention has the advantages of short treatment time, good treatment effect and automatic zeolite replacement.
Description
Technical Field
The invention relates to the technical field of sludge heavy metal treatment, in particular to river sludge heavy metal treatment equipment.
Background
The sludge is deposited in still water or a slow flowing water environment, unconsolidated weak fine grains or extremely fine soil are formed through physicochemical and biochemical actions, the sludge belongs to modern recent sediments, the accumulation of the sludge in a river channel for a long time can cause the rise of a river bed, the water storage capacity is reduced, the sludge in the river channel needs to be cleaned regularly, and part of the sludge in the river channel can not be directly utilized due to the excessive heavy metal, so the heavy metal needs to be removed from the sludge.
Disclosure of Invention
The technical problem is as follows: current river course silt heavy metal treatment facility mainly handles silt through adsorption material, and adsorption materials such as zeolite need the manual work to be changed, and adopts single adsorption treatment method for the treatment time is longer, and the treatment effeciency is lower.
In order to solve the problems, the embodiment designs river channel sludge heavy metal treatment equipment, which comprises a mixing box, wherein a mixing chamber is arranged in the mixing box, an adsorption box is fixedly connected to the lower side end surface of the mixing box, an adsorption chamber communicated with the mixing chamber is arranged in the adsorption box, a mixing device for stirring and mixing is arranged in the mixing chamber, a feeding device is arranged on the right side end surface of the mixing chamber, the feeding device comprises a sliding cylinder arranged outside the right side end surface of the mixing chamber, a spline chamber arranged in the sliding cylinder, a cavity arranged in the sliding cylinder and positioned at the left side of the spline chamber, a spline wheel capable of being in spline connection with the spline chamber, a spline shaft fixedly connected to the left end surface of the spline wheel and extending to the outside of the end surface of the sliding cylinder leftwards, and a steel pipe fixedly connected to the right end surface of the sliding cylinder and communicated with the spline chamber, and the airflow produced by the mixing device is conveyed into the spline cavity by utilizing the steel pipe, the spline wheel is pushed to move left into the cavity, the spline wheel is disconnected with the spline cavity, so that the quantitative feeding function of the feeding device can be realized, a locking device capable of automatically locking a box door of a feeding port of the feeding device is arranged at the lower side of the feeding device, a vibrating device is arranged in the adsorption cavity, the vibrating device can vibrate up and down to improve the fluidity of sludge, an adsorption device positioned at the lower side of the vibrating device is arranged in the adsorption cavity, and the adsorption device adsorbs heavy metal in the sludge through zeolite.
Preferably, the opening of the mixing cavity faces to the left, a cover plate is rotatably connected to the opening of the mixing cavity, and the opening of the adsorption cavity faces downwards.
Wherein, the mixing device comprises a motor shaft which is drilled on the inner wall of the upper side of the mixing cavity, the motor shaft is in power connection with a motor which is fixedly connected on the inner wall of the upper side of the mixing cavity, the motor shaft is fixedly connected with a bevel gear which is positioned at the lower side of the motor, the inner wall of the right side of the mixing cavity is fixedly connected with an air pump, the air pump is in rotary connection with a rotating shaft which extends to the left and the right outside of the end surface of the air pump, the rotating shaft is in rotary connection with a belt wheel which is positioned outside the end surface of the mixing cavity, the rotating shaft is fixedly connected with an auxiliary bevel gear which is engaged and connected with the bevel gear, the end surface of the left side of the auxiliary bevel gear is fixedly connected with a bevel block, the end surface of the left side of the bevel block is fixedly connected with a sliding shaft which, an extension spring is connected between the gear box and the inclined plane block, a driven rod which is abutted against the inclined plane block is fixedly connected on the end face of the right side of the gear box, and under the action of the elasticity of the extension spring, the driven rod is always abutted against the inclined plane block, a gear cavity is arranged in the gear box, the sliding shaft extends into the gear cavity, a bevel gear is rotatably connected on the inner wall of the right side of the gear cavity, the bevel gear is connected with the sliding key of the sliding shaft, a stirring shaft which extends up and down and extends downwards into the mixing cavity is rotationally connected on the inner wall of the lower side of the gear box, an auxiliary bevel gear in meshed connection with the bevel gear is fixedly connected to the stirring shaft, a stirring impeller positioned in the mixing cavity is fixedly connected to the stirring shaft, and the stirring shaft is fixedly connected with an auxiliary screw rod which is positioned on the lower side of the stirring impeller and used for conveying sludge downwards.
Preferably, the mixing chamber is rotatably connected with a sealing plate through the adsorption chamber, and a torsion spring is arranged at the rotary connection position of the sealing plate.
Wherein, the feeding device comprises a storage box fixedly connected on the right end face of the mixing cavity, a storage cavity which is communicated with the mixing cavity and has an opening facing the right is arranged in the storage box, the storage cavity is used for storing a passivator for converting heavy metal into hydroxide, an auxiliary box door is rotatably connected at the left opening of the storage cavity, a cross bar which is positioned at the lower side of the right opening of the storage cavity is fixedly connected on the right end face of the storage cavity, a boss which is positioned at the right side of the sliding cylinder is fixedly connected on the lower end face of the cross bar, an air cavity is arranged in the boss, the air cavity is communicated with the air pump and is connected with an air pipe, the steel pipe is rotatably connected on the left end face of the air cavity and is communicated with the air cavity, an auxiliary belt pulley which is positioned at the right side of the sliding cylinder is, be equipped with opening exhaust hole up on the cavity upside inner wall, it extends and extends right to rotate to be connected with about on the inner wall of storage chamber right side store chamber terminal surface off-plate hob, fixedly connected with is located on the hob store chamber terminal surface off-plate carousel, fixedly connected with spline section of thick bamboo is served on the carousel right side, just the integral key shaft extends to left in the spline section of thick bamboo, threaded connection has on the integral key shaft to be located the left nut of sliding cylinder, fixedly connected with on the nut left side terminal surface with the vice spline wheel of spline section of thick bamboo spline connection, just vice spline wheel with integral key shaft sliding connection, vice spline wheel with be connected with pressure spring between the inner wall of spline section of thick bamboo left side, fixedly connected with on the side terminal surface of spline chamber can with the communicating solenoid valve in spline chamber.
Preferably, a box door is rotatably connected to a communication part of the storage cavity and the mixing cavity, the distance between the auxiliary spline wheel and the spline cylinder is adjusted by rotating the nut, the initial pressure of the pressure spring is changed, and therefore the air pressure required by the spline wheel to move left into the cavity can be changed, the time required by the spline wheel to be separated from the spline cavity is changed, the putting amount is changed, and therefore different putting amounts can be set.
Wherein, locking device include sliding connection in on the inner wall of hybrid chamber right side and can with the stopper of vice chamber door butt, just the stopper can restrict vice chamber door to the hybrid chamber rotates in, fixedly connected with extends to right on the stopper right side terminal surface the outer lifter of hybrid chamber terminal surface, fixedly connected with is located on the hybrid chamber right side terminal surface the dead lever of lifter downside, the dead lever with be connected with compression spring between the lifter, carousel hoop array distribution has six openings towards keeping away from the vice spline wheel of centre of a circle department, sliding connection in the vice spline wheel can with the slider of lifter butt, the slider with vice spline wheel is close to and is connected with the exhaust hole between the inner wall of centre of a circle one side.
Wherein, the vibration device comprises an auxiliary air pump fixedly connected on the inner wall of the rear side of the adsorption cavity, the auxiliary air pump is rotationally connected with a rotating shaft which extends forwards and backwards to the outside of the end surface of the adsorption cavity, the rotating shaft is dynamically connected with an auxiliary motor fixedly connected on the end surface of the rear side of the adsorption cavity, the rotating shaft is slidably connected with a conical block positioned on the front side of the auxiliary air pump, the rotating shaft can not drive the conical block to rotate, the rotating shaft is fixedly connected with an eccentric wheel positioned on the front side of the conical block, the end surface of the mixing cavity is slidably connected with a limiting plate which can be abutted against the sealing plate, the limiting plate can limit the sealing plate to rotate downwards, an auxiliary compression spring is connected between the limiting plate and the inner wall of the right side of the adsorption cavity, and the end surface of the lower side of the, a piston cylinder is fixedly connected to the inner wall of the right side of the adsorption cavity, a piston cavity is arranged in the piston cylinder, an auxiliary electromagnetic valve which can be communicated with the piston cavity is fixedly connected to the end face of the front side of the piston cavity, a piston is slidably connected to the piston cavity, a piston rod which extends backwards into the adsorption cavity is fixedly connected to the end face of the rear side of the piston, an auxiliary spring is connected between the piston and the inner wall of the rear side of the piston cavity, a fixed block is fixedly connected between the piston rod and the end face of the front side of the conical block, an auxiliary air pipe is connected between the inner wall of the front side of the piston cavity and the auxiliary air pump, a vibration plate which is abutted against the eccentric wheel is slidably connected to the inner wall of the right side of the adsorption cavity, the vibration plate is positioned at the lower side of the eccentric wheel, a fixed table positioned at the lower side of, and under the elastic force action of the vibration spring, the eccentric wheel is always abutted against the vibration plate.
Wherein, adsorption equipment include fixed connection in on the inner wall of absorption chamber rear side and be used for storing the S-shaped conveyer pipe of zeolite, just the S-shaped conveyer pipe is located the fixed station downside, the S-shaped conveyer pipe is the metal mesh structure, makes silt in the absorption chamber can flow in with the zeolite contact in the S-shaped conveyer pipe, fixedly connected with is used for storing the zeolite' S zeolite case on the absorption chamber right side terminal surface, fixedly connected with on the absorption chamber right side terminal surface with the material pump that S-shaped conveyer pipe communicates with each other and is connected, just the material pump with the zeolite case communicates with each other, fixedly connected with on the absorption chamber left side terminal surface with the communicating collection box that is used for storing waste zeolite of S-shaped conveyer pipe.
The invention has the beneficial effects that: the invention adopts two methods of passivating agent reaction and zeolite adsorption to carry out heavy metal removal treatment on sludge, so that the treatment effect is better, the passivating agent feeding device can manually set different feeding doses, is linked with the mixing and stirring mechanism, can carry out quantitative feeding of the passivating agent while stirring, the mixing and stirring mechanism drives the stirring impeller to vibrate left and right while stirring, so as to improve the fluidity of the sludge, thereby improving the mixing speed of the sludge and the passivating agent, shortening the reaction time of the passivating agent and the heavy metal, after primary heavy metal treatment is finished, a screw rod in the mixing and stirring mechanism conveys the sludge into a zeolite adsorption box, the vibration mechanism vibrates up and down to improve the fluidity of the sludge, so as to improve the contact area of the sludge and the zeolite, shorten the time required by the zeolite for adsorbing the heavy metal in the sludge, and the conveying mechanism can discharge the zeolite losing adsorption capacity in the adsorption box, meanwhile, new zeolite is supplemented, so the method has the advantages of short treatment time, good treatment effect and automatic zeolite replacement.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic diagram of the overall structure of a river sludge heavy metal treatment device according to the present invention;
FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;
FIG. 3 is an enlarged view of the structure at "B" in FIG. 1;
FIG. 4 is an enlarged view of the structure at "C" of FIG. 1;
FIG. 5 is a schematic view of the structure in the direction "D-D" of FIG. 1;
fig. 6 is an enlarged schematic view of the structure at "E" of fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1 to 6, for the sake of convenience of description, the following orientations are now defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to river channel sludge heavy metal treatment equipment which is mainly applied to sludge heavy metal treatment, and the invention is further explained by combining the attached drawings of the invention:
the invention relates to river sludge heavy metal treatment equipment, which comprises a mixing box 11, wherein a mixing cavity 12 is arranged in the mixing box 11, an adsorption box 66 is fixedly connected to the end surface of the lower side of the mixing box 11, an adsorption cavity 67 communicated with the mixing cavity 12 is arranged in the adsorption box 66, a mixing device 101 for stirring and mixing is arranged in the mixing cavity 12, a feeding device 102 is arranged on the end surface of the right side of the mixing cavity 12, the feeding device 102 comprises a sliding cylinder 55 arranged outside the end surface of the right side of the mixing cavity 12, a spline cavity 56 arranged in the sliding cylinder 55, a cavity 58 arranged in the sliding cylinder 55 and positioned at the left side of the spline cavity 56, a spline wheel 57 capable of being in spline connection with the spline cavity 56, a spline shaft 60 fixedly connected to the end surface of the left side of the spline wheel 57 and extending to the outside of the end surface of the sliding cylinder 55 leftwards, and a steel pipe 52 fixedly connected to the end surface of the right side of the sliding cylinder 55 and communicated with, the air flow produced by the mixing device 101 is conveyed into the spline cavity 56 by the steel pipe 52, the spline wheel 57 is pushed to move left into the cavity 58, the spline wheel 57 is disconnected with the spline cavity 56, and the quantitative feeding function of the feeding device 102 can be realized, a locking device 103 capable of automatically locking a box door of a feeding port of the feeding device 102 is arranged on the lower side of the feeding device 102, a vibrating device 104 is arranged in the adsorption cavity 67, the vibrating device 104 can vibrate up and down to improve the fluidity of sludge, an adsorption device 105 positioned on the lower side of the vibrating device 104 is arranged in the adsorption cavity 67, and the adsorption device 105 adsorbs heavy metals in the sludge through zeolite.
Advantageously, the mixing chamber 12 opens to the left, and a cover plate 86 is rotatably attached to the mixing chamber 12 opening, the suction chamber 67 opening to the bottom.
According to the embodiment, the mixing device 101 is described in detail below, the mixing device 101 comprises a motor shaft 17 drilled on the inner wall of the upper side of the mixing chamber 12, the motor shaft 17 is connected with a motor 18 fixedly connected on the inner wall of the upper side of the mixing chamber 12, the motor shaft 17 is connected with a bevel gear 16 fixedly positioned on the lower side of the motor 18, the inner wall of the right side of the mixing chamber 12 is connected with an air pump 21 fixedly, the air pump 21 is connected with a rotating shaft 20 which extends to the left and right outside the end surface of the air pump 21, the rotating shaft 20 extends to the right outside the end surface of the mixing chamber 12, the rotating shaft 20 is connected with a belt wheel 26 fixedly positioned outside the end surface of the mixing chamber 12, the rotating shaft 20 is connected with a secondary bevel gear 19 engaged with the bevel gear 16, the left end surface of the secondary bevel gear 19 is, a sliding shaft 46 extending leftwards is fixedly connected to the left end face of the bevel block 43, a gear box 15 located on the left side of the bevel block 43 is slidably connected to the inner wall of the rear side of the mixing chamber 12, an extension spring 44 is connected between the gear box 15 and the bevel block 43, a driven rod 45 abutted against the bevel block 43 is fixedly connected to the right end face of the gear box 15, under the elastic action of the extension spring 44, the driven rod 45 is always abutted against the bevel block 43, a gear chamber 50 is arranged in the gear box 15, the sliding shaft 46 extends into the gear chamber 50, a bevel gear 47 is rotatably connected to the inner wall of the right side of the gear chamber 50, the bevel gear 47 is slidably connected with the sliding shaft 46, a stirring shaft 14 extending upwards and downwards and extending into the mixing chamber 12 is rotatably connected to the inner wall of the lower side of the gear box 15, and an auxiliary bevel gear 48 meshed with the bevel gear 47 is fixedly connected to the stirring shaft 14, fixedly connected with is located stirring impeller 13 in mixing chamber 12 on the (mixing) shaft 14, fixedly connected with is located on the (mixing) shaft 14 the vice hob 49 that is used for carrying silt downwards of stirring impeller 13 downside, through motor 18 can drive vice bevel gear 19 with bevel block 43 rotates under the effect of extension spring 44 elasticity, bevel block 43 can drive driven lever 45 with gear box 15 reaches stirring impeller 13 moves about, realizes the vibrating motion to improve the mobility of silt, simultaneously through bevel gear 47 with the meshing of vice bevel gear 48 is connected can drive the (mixing) shaft 14 with stirring impeller 13 rotates, realizes the stirring function.
Advantageously, a sealing plate 37 is rotatably connected to the opening of the mixing chamber 12 to the adsorption chamber 67, and a torsion spring 85 is provided at the rotary connection of the sealing plate 37.
According to the embodiment, the feeding device 102 is described in detail below, the feeding device 102 includes a storage box 23 fixedly connected to the right end face of the mixing chamber 12, a storage chamber 24 communicating with the mixing chamber 12 and opening to the right is provided in the storage box 23, the storage chamber 24 is used for storing a passivator for converting heavy metal into hydroxide, an auxiliary box door 35 is rotatably connected to the left opening of the storage chamber 24, a cross bar 28 positioned at the lower side of the right opening of the storage chamber 24 is fixedly connected to the right end face of the storage chamber 24, a boss 29 positioned at the right side of the slide cylinder 55 is fixedly connected to the lower side end face of the cross bar 28, an air chamber 51 is provided in the boss 29, an air pipe 22 is connected between the air chamber 51 and the air pump 21, the steel pipe 52 is rotatably connected to the left end face of the air chamber 51, and the steel pipe 52 is communicated with, the steel pipe 52 is fixedly connected with an auxiliary pulley 53 positioned on the right side of the sliding cylinder 55, a V-belt 27 is connected between the auxiliary pulley 53 and the pulley 26, an exhaust hole 64 with an upward opening is formed in the inner wall of the upper side of the cavity 58, a screw rod 31 which extends leftwards and rightwards and extends out of the end face of the storage cavity 24 is rotatably connected to the inner wall of the right side of the storage cavity 24, a rotary disc 62 positioned outside the end face of the storage cavity 24 is fixedly connected to the screw rod 31, a spline cylinder 30 is fixedly connected to the right end of the rotary disc 62, the spline shaft 60 extends leftwards into the spline cylinder 30, a nut 61 positioned on the left side of the sliding cylinder 55 is in threaded connection with the spline shaft 60, an auxiliary spline wheel 65 in splined connection with the spline cylinder 30 is fixedly connected to the end face of the left side of the nut 61, the auxiliary spline wheel 65 is in sliding connection with the spline shaft 60, and a pressure spring 54 is connected, the upper end face of the spline cavity 56 is fixedly connected with an electromagnetic valve 42 which can be communicated with the spline cavity 56, and the mixing device 101 drives the steel pipe 52 to rotate through belt transmission, so that the screw rod 31 can be driven to rotate to throw the passivator in the storage cavity 24 into the mixing cavity 12.
Advantageously, a chamber door 25 is rotatably connected to a position where the storage chamber 24 communicates with the mixing chamber 12, and the distance between the auxiliary spline wheel 65 and the spline cylinder 30 is adjusted by rotating the nut 61, so that the initial pressure of the pressure spring 54 is changed, and the air pressure required for the spline wheel 57 to move left into the cavity 58 can be changed, and the time required for the spline wheel 57 to disengage from the spline cavity 56 is changed, so that the input amount is changed, and thus different input amounts can be set.
According to the embodiment, the locking device 103 is described in detail below, the locking device 103 includes a limiting block 36 slidably connected to the inner wall of the right side of the mixing chamber 12 and capable of abutting against the auxiliary chamber door 35, and the limiting block 36 can limit the auxiliary chamber door 35 from rotating towards the mixing chamber 12, a lifting rod 32 extending rightwards to the outside of the end surface of the mixing chamber 12 is fixedly connected to the right end surface of the limiting block 36, a fixing rod 34 located on the lower side of the lifting rod 32 is fixedly connected to the right end surface of the mixing chamber 12, a compression spring 33 is connected between the fixing rod 34 and the lifting rod 32, six auxiliary spline wheels 65 with openings facing away from the center of a circle are distributed in the circular array of the rotary table 62, a sliding block 63 capable of abutting against the lifting rod 32 is slidably connected to the auxiliary spline wheels 65, and an exhaust hole 64 is connected between the sliding block 63 and the inner wall of the auxiliary spline, the screw rod 31 drives the turntable 62 to rotate, the slide block 63 moves to one side far away from the circle center under the action of centrifugal force, the slide block 63 is abutted to the lifting rod 32 and pushes the lifting rod 32 to move downwards, the limiting block 36 is separated from the contact with the auxiliary box door 35, and therefore the rotation limitation of the auxiliary box door 35 is relieved.
According to the embodiment, the vibration device 104 is described in detail below, the vibration device 104 includes an auxiliary air pump 74 fixedly connected to the inner wall of the rear side of the adsorption cavity 67, the auxiliary air pump 74 is rotatably connected with a rotating shaft 68 extending forward and backward and extending backward out of the end surface of the adsorption cavity 67, the rotating shaft 68 is power-connected with an auxiliary motor 75 fixedly connected to the end surface of the rear side of the adsorption cavity 67, the rotating shaft 68 is slidably connected with a conical block 73 located in front of the auxiliary air pump 74, the rotating shaft 68 cannot drive the conical block 73 to rotate, the rotating shaft 68 is fixedly connected with an eccentric wheel 69 located in front of the conical block 73, the end surface of the mixing cavity 12 is slidably connected with a limit plate 78 capable of abutting against the seal plate 37, the limit plate 78 can limit the seal plate 37 from rotating downward, and an auxiliary compression spring 87 is connected between the limit plate 78 and the inner wall of the right side of the adsorption cavity 67, a push rod 77 abutted against the conical block 73 is fixedly connected to the lower side end face of the limit plate 78, a piston cylinder 70 is fixedly connected to the inner wall of the right side of the adsorption cavity 67, a piston cavity 71 is arranged in the piston cylinder 70, an auxiliary electromagnetic valve 88 capable of being communicated with the piston cavity 71 is fixedly connected to the front side end face of the piston cavity 71, a piston 81 is slidably connected to the piston cavity 71, a piston rod 80 extending backwards into the adsorption cavity 67 is fixedly connected to the rear side end face of the piston 81, an auxiliary spring 72 is connected between the piston 81 and the inner wall of the rear side of the piston cavity 71, a fixed block 79 is fixedly connected between the piston rod 80 and the front side end face of the conical block 73, an auxiliary air pipe 76 is communicated between the inner wall of the front side of the piston cavity 71 and the auxiliary air pump 74, and a vibration plate 84 abutted against the eccentric wheel 69 is slidably connected to the inner wall of, the vibrating plate 84 is located below the eccentric wheel 69, the fixing table 82 located below the vibrating plate 84 is fixedly connected to the inner wall of the right side of the adsorption cavity 67, a vibrating spring 83 is connected between the fixing table 82 and the vibrating plate 84, the eccentric wheel 69 is always abutted to the vibrating plate 84 under the elastic force of the vibrating spring 83, the rotating shaft 68 and the eccentric wheel 69 are driven by the auxiliary motor 75 to rotate, the vibrating plate 84 can be driven to move up and down, vertical vibration is generated, and the fluidity of sludge is improved through vibration.
According to the embodiment, the following is a detailed description of the adsorption apparatus 105, wherein the adsorption apparatus 105 includes an S-shaped conveying pipe 38 fixedly connected to the inner wall of the rear side of the adsorption cavity 67 and used for storing zeolite, the S-shaped conveying pipe 38 is located at the lower side of the fixing table 82, the S-shaped conveying pipe 38 is of a metal mesh structure, so that sludge in the adsorption cavity 67 can flow into the S-shaped conveying pipe 38 and contact with zeolite, a zeolite box 40 for storing zeolite is fixedly connected to the right end surface of the adsorption cavity 67, a material pump 39 connected to the S-shaped conveying pipe 38 is fixedly connected to the right end surface of the adsorption cavity 67, the material pump 39 is communicated with the zeolite box 40, a recycling box 41 connected to the S-shaped conveying pipe 38 and used for storing waste zeolite is fixedly connected to the left end surface of the adsorption cavity 67, and sludge flows from top to bottom, the zeolite in the upper S-shaped conveying pipe 38 is firstly contacted with the sludge and adsorbs heavy metals, so that the zeolite in the upper S-shaped conveying pipe 38 loses adsorption capacity before the zeolite on the lower side, the zeolite in the zeolite box 40 is conveyed into the S-shaped conveying pipe 38 through the material pump 39 and gradually moves upwards along the S-shaped conveying pipe 38, and the zeolite losing adsorption capacity is conveyed into the recovery box 41.
The following describes in detail the use steps of a river sludge heavy metal treatment device in the present text with reference to fig. 1 to 6:
at the beginning, the auxiliary box door 35 is in a closed state, the lifting rod 32 is in contact with the lower side end face of the mixing cavity 12 under the action of the elastic force of the compression spring 33, the limiting block 36 is in contact with the auxiliary box door 35 and limits the auxiliary box door 35 to rotate leftwards, the sliding block 63 is not in contact with the lifting rod 32 under the action of the elastic force of the exhaust hole 64, the electromagnetic valve 42 and the auxiliary electromagnetic valve 88 are in a closed state, and the auxiliary spline wheels 65 and 3 are changed by manually rotating the nut 61
0, setting the required input amount, under the action of the elastic force of a pressure spring 54, positioning the auxiliary spline wheel 65 and the spline wheel 57 at the right limit position, contacting the spline wheel 57 with the right inner wall of the spline cavity 56, under the action of the torsional force of a torsional spring 85, closing the sealing plate 37, under the action of the elastic force of an auxiliary spring 72, positioning the piston 81 and the conical block 73 at the front limit position, abutting the limiting plate 78 with the sealing plate 37 and limiting the downward rotation of the sealing plate 37, filling the passivator in the storage cavity 24, filling the zeolite with the zeolite box 40, conveying the sludge to be treated into the mixing cavity 12 through an opening cover plate 86, and starting the material pump 39 to convey the zeolite in the zeolite box 40 into the S-shaped conveying pipe 38 and fill the S-shaped conveying pipe 38.
When the device works, the motor 18 is started, the motor 18 drives the motor shaft 17 to rotate, the motor shaft 17 drives the rotating shaft 20 and the sliding shaft 46 to rotate through the meshing connection of the bevel gear 16 and the secondary bevel gear 19, the sliding shaft 46 is connected with the movable bevel gear 47 through a sliding key, the bevel gear 47 drives the secondary bevel gear 48, the stirring shaft 14, the stirring impeller 13 and the secondary screw rod 49 to rotate through the meshing connection, the stirring function of sludge is realized, meanwhile, the secondary bevel gear 19 drives the bevel block 43 to rotate, the driven rod 45 is always abutted against the bevel block 43 under the elastic force action of the tension spring 44, so that the bevel block 43 can drive the driven rod 45 and the gear box 15 to move leftwards and rightwards in a small amplitude manner, the stirring impeller 13 vibrates leftwards and rightwards, the viscosity and the flowability of the sludge are improved, the mixing speed of the sludge and the passivating agent is improved, the heavy metal, the air flow is conveyed into the air cavity 51 through the air pipe 22, and then conveyed into the spline cavity 56 through the steel pipe 52, the spline wheel 57 is gradually pushed to move leftwards, the belt wheel 26 is driven by the rotating shaft 20 to rotate, the secondary belt wheel 53 and the steel pipe 52 are driven by the belt wheel 26 through the V-belt 27 to rotate, the steel pipe 52 drives the sliding cylinder 55 to rotate, the sliding cylinder 55 drives the spline wheel 57 and the spline shaft 60 to rotate through the spline connection of the spline cavity 56 and the spline wheel 57, the spline shaft 60 drives the nut 61 and the secondary spline wheel 65 to rotate through threaded connection, the secondary spline wheel 65 drives the spline cylinder 30 and the rotary disc 62 to rotate through the spline connection, the rotary disc 62 rotates to generate centrifugal force, the sliding block 63 moves towards the side far away from the circle center and is abutted against the lifting rod 32, the lifting rod 32 drives the limiting block 36 to move downwards, the limiting block 36 is disconnected with the secondary box door 35, the rotation limiting on the secondary box door 35 is released, and, when the spline wheel 57 moves to the right in the cavity 58, a set amount of passivator is thrown, so that the spline wheel 57, the auxiliary spline wheel 65, the turntable 62, the spline cylinder 30 and the screw rod 31 stop rotating, the passivator is stopped to be continuously thrown into the mixing chamber 12, the set amount of passivator is thrown, meanwhile, the sliding block 63 resets under the elastic action of the exhaust hole 64 and is separated from the lifting rod 32, the limiting block 36 moves upwards and resets under the elastic action of the compression spring 33 and abuts against the auxiliary box door 35, excessive passivator is prevented from being thrown by accidentally opening the auxiliary box door 35, redundant air in the sliding cylinder 55 is exhausted to the outside through the exhaust hole 64, after the passivator finishes primary treatment on heavy metal in sludge, the auxiliary motor 75 is started, the auxiliary motor 75 drives the rotating shaft 68 to rotate, the rotating shaft 68 drives the auxiliary air pump 74 to work to generate air flow, and the air flow is conveyed into the piston chamber 71 through the auxiliary air pipe 76, the pushing piston 81, the piston rod 80 and the fixing block 79 move backwards, the fixing block 79 drives the conical block 73 to move backwards along the rotating shaft 68, the conical block 73 pushes the push rod 77 to move rightwards, the push rod 77 drives the limit plate 78 to move rightwards, the limit of the sealing plate 37 is removed, the sealing plate 37 rotates downwards to be opened under the action of gravity of sludge in the mixing cavity 12, the auxiliary screw rod 49 rotates to convey the sludge downwards to the adsorption cavity 67, the stirring impeller 13 vibrates leftwards and rightwards to improve the sludge flowability, so that the sludge in the mixing cavity 12 can quickly flow to the adsorption cavity 67, the overall treatment time is shortened, the motor 18 stops after the sludge is conveyed, the sludge flows downwards to be in contact with zeolite in the S-shaped conveying pipe 38, the zeolite adsorbs heavy metal remained in the sludge, secondary treatment of the heavy metal in the sludge is realized, and the rotating shaft 68 drives the eccentric wheel 69 to rotate, under the action of the elastic force of the vibration spring 83, the vibration plate 84 is always abutted against the eccentric wheel 69, so that the eccentric wheel 69 rotates to drive the vibration plate 84 to move up and down, the sludge in the adsorption cavity 67 is vibrated to improve the sludge flowability, the sludge can be fully contacted with zeolite to improve the zeolite adsorption area, so that the time required by heavy metal adsorption of the zeolite is shortened, after a period of time, the material pump 39 is started to convey the zeolite in the zeolite box 40 into the S-shaped conveying pipe 38 and convey the scrapped zeolite in the S-shaped conveying pipe 38 into the recovery box 41, the automatic zeolite replacement function is realized, the treated sludge flows out to an external storage part through the lower opening of the adsorption cavity 67, meanwhile, the auxiliary motor 75 stops rotating, the auxiliary electromagnetic valve 88 is opened, the piston 81 moves forwards and resets, the electromagnetic valve 42 is opened, under the action of the pressure spring 54, the auxiliary spline wheel 65 and the spline wheel 57 move rightwards, after that, the sub solenoid valve 88 and the pressure spring 54 are closed again, and the entire apparatus is restored to the original state.
The invention has the beneficial effects that: the invention adopts two methods of passivating agent reaction and zeolite adsorption to carry out heavy metal removal treatment on sludge, so that the treatment effect is better, the passivating agent feeding device can manually set different feeding doses, is linked with the mixing and stirring mechanism, can carry out quantitative feeding of the passivating agent while stirring, the mixing and stirring mechanism drives the stirring impeller to vibrate left and right while stirring, so as to improve the fluidity of the sludge, thereby improving the mixing speed of the sludge and the passivating agent, shortening the reaction time of the passivating agent and the heavy metal, after primary heavy metal treatment is finished, a screw rod in the mixing and stirring mechanism conveys the sludge into a zeolite adsorption box, the vibration mechanism vibrates up and down to improve the fluidity of the sludge, so as to improve the contact area of the sludge and the zeolite, shorten the time required by the zeolite for adsorbing the heavy metal in the sludge, and the conveying mechanism can discharge the zeolite losing adsorption capacity in the adsorption box, meanwhile, new zeolite is supplemented, so the method has the advantages of short treatment time, good treatment effect and automatic zeolite replacement.
In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.
Claims (1)
1. A river sludge heavy metal treatment device comprises a mixing box;
the mixing box is internally provided with a mixing chamber, the lower side end face of the mixing box is fixedly connected with an adsorption box, the adsorption box is internally provided with an adsorption chamber communicated with the mixing chamber, the mixing chamber is internally provided with a mixing device for stirring and mixing, the right side end face of the mixing chamber is provided with a feeding device, the feeding device comprises a sliding cylinder arranged outside the right side end face of the mixing chamber, a spline chamber arranged in the sliding cylinder, a cavity arranged in the sliding cylinder and positioned at the left side of the spline chamber, a spline wheel in the spline chamber, a spline shaft fixedly connected on the left side end face of the spline wheel and extending to the outside of the end face of the sliding cylinder leftwards, a steel pipe fixedly connected on the right side end face of the sliding cylinder and communicated with the spline chamber, and the steel pipe is utilized to convey airflow produced by the mixing device into the spline chamber and push the spline wheel to move leftwards into the cavity, the spline wheel is disconnected with the spline cavity, so that the quantitative feeding function of the feeding device can be realized, a locking device capable of automatically locking a box door of a feeding port of the feeding device is arranged on the lower side of the feeding device, a vibrating device is arranged in the adsorption cavity, the vibrating device can vibrate up and down to improve the fluidity of sludge, an adsorption device positioned on the lower side of the vibrating device is arranged in the adsorption cavity, and the adsorption device adsorbs heavy metals in the sludge through zeolite;
the opening of the mixing cavity faces to the left, a cover plate is rotatably connected to the opening of the mixing cavity, and the opening of the adsorption cavity faces downwards;
the mixing device comprises a motor shaft which is drilled on the inner wall of the upper side of the mixing cavity, the motor shaft is in power connection with a motor which is fixedly connected on the inner wall of the upper side of the mixing cavity, the motor shaft is fixedly connected with a bevel gear which is positioned on the lower side of the motor, the inner wall of the right side of the mixing cavity is fixedly connected with an air pump, the air pump is in rotary connection with a rotating shaft which extends to the left and the right of the end surface of the air pump, the rotating shaft extends to the right of the end surface of the mixing cavity, the rotating shaft is fixedly connected with a belt wheel which is positioned on the end surface of the mixing cavity, the rotating shaft is fixedly connected with an auxiliary bevel gear which is engaged with the bevel gear, the end surface of the left side of the auxiliary bevel gear is fixedly connected with a bevel block, the end surface of the left side, an extension spring is connected between the gear box and the inclined plane block, a driven rod which is abutted against the inclined plane block is fixedly connected on the end face of the right side of the gear box, and under the action of the elasticity of the extension spring, the driven rod is always abutted against the inclined plane block, a gear cavity is arranged in the gear box, the sliding shaft extends into the gear cavity, a bevel gear is rotatably connected on the inner wall of the right side of the gear cavity, the bevel gear is connected with the sliding key of the sliding shaft, a stirring shaft which extends up and down and extends downwards into the mixing cavity is rotationally connected on the inner wall of the lower side of the gear box, an auxiliary bevel gear in meshed connection with the bevel gear is fixedly connected to the stirring shaft, a stirring impeller positioned in the mixing cavity is fixedly connected to the stirring shaft, the stirring shaft is fixedly connected with an auxiliary screw rod which is positioned on the lower side of the stirring impeller and used for conveying sludge downwards;
a sealing plate is rotatably connected to a through hole of the mixing cavity and the adsorption cavity, and a torsion spring is arranged at the rotary connection position of the sealing plate;
the feeding device comprises a storage box fixedly connected to the right end face of the mixing cavity, a storage cavity which is communicated with the mixing cavity and has an opening facing the right is arranged in the storage box, the storage cavity is used for storing a passivator for converting heavy metal into hydroxide, an auxiliary box door is rotatably connected to the left opening of the storage cavity, a cross rod which is positioned at the lower side of the right opening of the storage cavity is fixedly connected to the right end face of the storage cavity, a boss which is positioned at the right side of the sliding cylinder is fixedly connected to the lower end face of the cross rod, an air cavity is arranged in the boss, the air cavity is communicated with the air pump and is connected with an air pipe, the steel pipe is rotatably connected to the left end face of the air cavity and is communicated with the air cavity, an auxiliary belt wheel which is positioned at the right side of the sliding cylinder is, an exhaust hole with an upward opening is formed in the inner wall of the upper side of the cavity, a spiral rod which extends leftwards and rightwards and extends out of the end face of the storage cavity is rotatably connected to the inner wall of the right side of the storage cavity, a rotary disc which is located out of the end face of the storage cavity is fixedly connected to the spiral rod, a spline barrel is fixedly connected to the right side end of the rotary disc, a spline shaft extends leftwards into the spline barrel, a nut which is located on the left side of the sliding cylinder is in threaded connection with the spline shaft, an auxiliary spline wheel which is in spline connection with the spline barrel is fixedly connected to the end face of the left side of the nut, the auxiliary spline wheel is in sliding connection with the spline shaft, a pressure spring is connected between the auxiliary spline wheel and the inner wall of the left side of the spline barrel;
the communicating part of the storage cavity and the mixing cavity is rotatably connected with a box door, the distance between the auxiliary spline wheel and the spline cylinder is adjusted by rotating the nut, the initial pressure of the pressure spring is changed, so that the air pressure required for moving the spline wheel to the left in the cavity can be changed, the time required for separating the spline wheel from the spline cavity is changed, the putting amount is changed, and different putting amounts can be set;
the locking device comprises a limiting block which is connected to the inner wall of the right side of the mixing cavity in a sliding mode and can be abutted against the auxiliary box door, the limiting block can limit the auxiliary box door to rotate in the mixing cavity, a lifting rod which extends rightwards to the outside of the end face of the mixing cavity is fixedly connected to the end face of the right side of the limiting block, a fixed rod which is located on the lower side of the lifting rod is fixedly connected to the end face of the right side of the mixing cavity, a compression spring is connected between the fixed rod and the lifting rod, six auxiliary spline wheels with openings facing away from the circle center are distributed on the circumferential array of the rotary table, a sliding block which can be abutted against the lifting rod is connected in the auxiliary spline wheels in a sliding mode, and an exhaust hole is connected;
the vibration device comprises an auxiliary air pump fixedly connected to the inner wall of the rear side of the adsorption cavity, the auxiliary air pump is rotationally connected with a rotating shaft which extends forwards and backwards and extends backwards to the outside of the end face of the adsorption cavity, the rotating shaft is in power connection with an auxiliary motor fixedly connected to the end face of the rear side of the adsorption cavity, the rotating shaft is in sliding connection with a conical block positioned at the front side of the auxiliary air pump and cannot drive the conical block to rotate, the rotating shaft is fixedly connected with an eccentric wheel positioned at the front side of the conical block, the end face of the mixing cavity is in sliding connection with a limiting plate which can be abutted against the sealing plate, the limiting plate can limit the sealing plate to rotate downwards, an auxiliary compression spring is connected between the limiting plate and the inner wall of the right side of the adsorption cavity, and a push rod abutted against the conical block is, a piston cylinder is fixedly connected to the inner wall of the right side of the adsorption cavity, a piston cavity is arranged in the piston cylinder, an auxiliary electromagnetic valve which can be communicated with the piston cavity is fixedly connected to the end face of the front side of the piston cavity, a piston is slidably connected to the piston cavity, a piston rod which extends backwards into the adsorption cavity is fixedly connected to the end face of the rear side of the piston, an auxiliary spring is connected between the piston and the inner wall of the rear side of the piston cavity, a fixed block is fixedly connected between the piston rod and the end face of the front side of the conical block, an auxiliary air pipe is connected between the inner wall of the front side of the piston cavity and the auxiliary air pump, a vibration plate which is abutted against the eccentric wheel is slidably connected to the inner wall of the right side of the adsorption cavity, the vibration plate is positioned at the lower side of the eccentric wheel, a fixed table positioned at the lower side of, under the elastic force of the vibration spring, the eccentric wheel is always abutted against the vibration plate;
adsorption equipment includes fixed connection in just be used for storing the S-shaped conveyer pipe of zeolite on the inner wall of absorption chamber rear side, just the S-shaped conveyer pipe is located the fixed station downside, the S-shaped conveyer pipe is the metal mesh structure, makes it can flow into to adsorb the silt of intracavity with the zeolite contact in the S-shaped conveyer pipe, fixedly connected with is used for storing the zeolite' S zeolite case on the absorption chamber right side terminal surface, fixedly connected with on the absorption chamber right side terminal surface with the material pump that S-shaped conveyer pipe communicates with each other and is connected, just the material pump with the zeolite case communicates with each other, adsorb on the chamber left side terminal surface fixedly connected with the communicating collection box that is used for storing abandonment zeolite of S-shaped conveyer pipe.
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| CN201910843457.1A CN110510843B (en) | 2019-09-06 | 2019-09-06 | River silt heavy metal treatment facility |
| JP2019225926A JP2021041392A (en) | 2019-09-06 | 2019-12-13 | Heavy metal treatment facility for river silt |
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| CN201910843457.1A CN110510843B (en) | 2019-09-06 | 2019-09-06 | River silt heavy metal treatment facility |
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| CN113321389A (en) * | 2021-05-22 | 2021-08-31 | 秦超 | Reservoir silt processing apparatus that hydraulic engineering used |
| CN113477145B (en) * | 2021-08-09 | 2023-05-19 | 重庆工程职业技术学院 | Smoke suppression asphalt mixing device |
| CN114100450A (en) * | 2021-11-09 | 2022-03-01 | 梁启鑫 | Swing type mixing device for external liquid medicine preparation in burn department |
| CN114105358B (en) * | 2021-11-24 | 2023-11-07 | 嘉应学院 | Small-size city river water ammonia nitrogen treatment device |
| CN114315060B (en) * | 2021-12-13 | 2022-12-13 | 中铁二局集团建筑有限公司 | Silt solidification equipment |
| CN114768593A (en) * | 2022-05-31 | 2022-07-22 | 陈秀清 | Phosphate slurry treatment device based on industrial waste recovery |
| CN116216095B (en) * | 2023-02-08 | 2024-01-19 | 连云港市兆昱新材料实业有限公司 | Feed liquid metering pushing equipment of rare earth extraction tank |
| CN116514355B (en) * | 2023-07-03 | 2023-09-05 | 湖南亿康环保科技有限公司 | Solidification equipment of mud innocent treatment |
| CN116750935B (en) * | 2023-08-16 | 2023-11-03 | 山东中治环境工程设备有限公司 | Environment-friendly water environment treatment equipment |
| CN117965892B (en) * | 2024-01-31 | 2024-08-13 | 湖南信力新材料有限公司 | Oxygen-enriched oxidation recovery device for tungsten-containing waste |
| CN118130382B (en) * | 2024-05-07 | 2024-07-05 | 吉林省白城市农业科学院(吉林省向日葵研究所) | Rye bread microorganism content fluorescence detector |
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| JPS5886229U (en) * | 1982-08-03 | 1983-06-11 | 京阪煉炭工業株式会社 | Dry dust collection powder humidification device |
| JP2529212B2 (en) * | 1986-07-16 | 1996-08-28 | 株式会社竹中工務店 | Contaminated soil treatment equipment |
| JPH05105769A (en) * | 1991-10-17 | 1993-04-27 | Nkk Corp | Batch type production device for high viscosity resin |
| JP5931597B2 (en) * | 2011-09-29 | 2016-06-08 | 株式会社神鋼環境ソリューション | Stirrer |
| US10900062B2 (en) * | 2017-07-14 | 2021-01-26 | American Sterilizer Company | Process for determining viability of test microorganisms of biological indicator and sterilization detection device for determining same |
| CN206937452U (en) * | 2017-07-18 | 2018-01-30 | 河南省奥林特药业有限公司 | For to stalk straightening device before Chinese medicine cutting |
| CN108310843B (en) * | 2018-04-25 | 2018-12-11 | 安徽颐生堂中药饮片有限公司 | A kind of low-carbon economy automation Chinese medicine removes removing heavy metals device |
| CN108927038A (en) * | 2018-08-03 | 2018-12-04 | 绍兴初汇纺织有限公司 | A kind of preparation method of novel reactive dye |
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