Sampling device for rare earth ore sewage detection

Abstract

The invention relates to the technical field of sewage sampling, in particular to a sampling device for rare earth ore sewage detection, a sampling box is driven by a driving device to realize lifting, a third sampling barrel is arranged in the middle of the sampling box, and two first sampling barrels and two second sampling barrels are arranged by taking the third sampling barrel as a symmetric center; the first sampling barrel and the second sampling barrel move relative to the third sampling barrel through an adjusting device, and the distance between the second sampling barrel and the third sampling barrel is always equal to the vertical distance between the first sampling barrel and the corresponding second sampling barrel. The sampling device is provided with the first nozzle, the second nozzle, the piston plate and other components, after sampling is completed, the second nozzle is used for cleaning the interior of the piston barrel, then the first nozzle is used for drying the inner wall of the piston barrel, and then cleaning of the inner wall of the piston barrel can be completed, so that pollution crossing can be avoided, and influence on subsequent sampling is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage sampling, and in particular to a sampling device for detecting rare earth ore sewage. Background Art

[0002] Rare earth ores refer to minerals containing rare earth elements, which are the main raw materials for extracting rare earth elements (such as cerium, lanthanum, neodymium, terbium, ytterbium, yttrium, etc.). Rare earth elements are widely used in modern science and technology, industry, and energy fields, such as manufacturing high-strength permanent magnetic materials, catalysts, optical glass, nuclear energy technology, etc. During the mining and processing of rare earth ores, wastewater is usually generated, and this wastewater usually contains a large amount of harmful substances, which may pose a threat to the environment and human health. Therefore, it is necessary to collect sewage samples for water quality detection, monitor the pollutant components in the sewage, and evaluate the environmental pollution risk. Existing sewage sampling devices, such as the sampling device and its sampling method for sewage treatment detection disclosed in the patent with the application publication number CN118482996A, although it can realize the synchronous pumping of multiple sampling tubes and reduce the sampling times, after each sampling, there will be some sewage samples remaining in the sampling tubes. If not cleaned, it will affect the next sampling result, resulting in inaccurate sampling data. In view of this, the present invention proposes a sampling device for detecting rare earth ore sewage to solve the above-mentioned technical problems. Summary of the Invention

[0003] In order to overcome the technical problems mentioned in the background art, the present invention provides a sampling device for detecting rare earth ore sewage.

[0004] The technical implementation scheme of the present invention is as follows: A sampling device for detecting rare earth ore sewage includes a sampling box, the sampling box is driven by a driving device to achieve lifting. In the middle of the sampling box, there is a third sampling cylinder. There are two first sampling cylinders and two second sampling cylinders respectively arranged symmetrically with the third sampling cylinder as the center of symmetry. The first sampling cylinder and the second sampling cylinder both move relative to the third sampling cylinder through an adjusting device, and the distance between the second sampling cylinder and the third sampling cylinder and the vertical distance between the first sampling cylinder and the corresponding second sampling cylinder always remain equal. There are activity slots on the sampling box for the first sampling cylinder and the second sampling cylinder to move. The third sampling cylinder includes a piston cylinder arranged in the middle of the sampling box. The piston cylinder is lidless and fixedly connected with a fixing plate at the opening. A piston plate is hermetically and movably connected in the piston cylinder. There is a water inlet on the fixing plate, and a water inlet pipe is connected to the water inlet. A communication valve is installed on the water inlet pipe. A second nozzle for cleaning the inner wall of the piston cylinder and a first nozzle for drying are installed on the piston plate. The settings of the first sampling cylinder and the second sampling cylinder are the same as those of the third sampling cylinder; wherein, the piston plate is driven by a pushing device to move relative to the fixing plate.

[0005] More preferably, the piston plate includes a first mounting block that is hermetically slidably and rotatably connected within the piston cylinder. A second mounting block is fixedly connected to the side of the first mounting block close to the fixed plate. An air chamber and a water chamber are respectively arranged inside the first mounting block and the second mounting block. The first mounting block is conical, and the second mounting block is cylindrical. The first nozzle is circumferentially arranged on the inclined side wall of the first mounting block and communicates with the air chamber. The second nozzle is arranged on the side surface of the second mounting block close to the fixed plate and communicates with the water chamber. The outer wall of the second mounting block is in sealed contact with the inner wall of the piston cylinder. An air-permeable hole for gas circulation is provided at the end of the piston cylinder away from the opening.

[0006] More preferably, the fixed plate includes an annular cylinder fixedly connected to one end of the piston cylinder. A movable plate is hermetically slidably connected within the annular cylinder. An elastic member is arranged between the movable plate and the annular cylinder. A first connection port and a second connection port are respectively arranged on the movable plate and the annular cylinder. A telescopic hose is hermetically connected between the first connection port and the second connection port. The first connection port, the second connection port, and the telescopic hose together form a water inlet.

[0007] More preferably, the connection valve includes a valve body connected between the water inlet pipe and the water inlet. A valve ball is hermetically rotatably connected within the valve body. A valve rod is fixedly connected to one side of the valve ball. The valve rod penetrates through the valve body and extends to the outside of the valve body. The valve rod is hollow. A sensor is installed on the outer side wall of the valve body. An inductor is arranged within the valve ball. The inductor penetrates through the valve rod and is electrically connected to the sensor. A drive motor is installed on the outer side wall of the valve body. A first gear is fixedly connected to the output shaft of the drive motor. A second gear meshing with the first gear is fixedly connected to the valve rod.

[0008] More preferably, the adjusting device includes longitudinally guiding plates symmetrically fixedly connected within the sampling box. A laterally guiding plate is slidably connected to the longitudinally guiding plates. The piston cylinder is fixedly connected to the corresponding laterally guiding plate. A fixed rod is fixedly connected to the outer side wall of the laterally guiding plate. A first moving frame is slidably connected within the sampling box. The first moving frame is driven by a first electric push rod installed within the sampling box to slide. First guiding plates and second guiding plates are symmetrically fixedly connected to the first moving frame. The fixed rod slides within the corresponding first guiding plate or second guiding plate. The first guiding plates and the second guiding plates are inclined, and the projected lengths of the first guiding plates and the second guiding plates in the vertical direction are equal, but the length of the first guiding plate is twice that of the second guiding plate.

[0009] More preferably, the pushing device includes a second moving frame slidably connected within the sampling box. The second moving frame is driven by a second electric push rod installed within the sampling box to slide. A moving groove is arranged on the second moving frame. Five sliding plates are arranged within the moving groove. A pushing rod is arranged between the sliding plates and the piston plate.

[0010] More preferably, one end of the push rod is rotatably connected to the sliding plate, and the other end is fixedly connected to the first mounting block. A fixing ring is fixedly connected between the two transverse guide plates. A spiral groove is provided on the push rod, and a clamping ball matching with the spiral groove is fixedly connected in the fixing ring. The push rod is hollow, and two straight pipes are arranged inside the push rod. One straight pipe is communicated with the air cavity, and the other is communicated with the water cavity. A water tank is fixedly connected inside the sampling box. A hot air blower and a water pump are installed on the outer side of the water tank. The hot air blower is communicated with the corresponding straight pipe through a corrugated hose. One end of the water pump is communicated with the water tank, and the other end is communicated with the corresponding straight pipe through another corrugated hose.

[0011] More preferably, the driving device includes a mounting plate, on which a third electric telescopic rod is installed. The telescopic rod of the third electric telescopic rod is fixedly connected to the sampling box. A foot pedal and a handle are fixedly connected to the side surface of the mounting plate away from the sampling box.

[0012] More preferably, the end of the water inlet pipe away from the piston cylinder is provided with a thread, and a filter cylinder is threadedly connected to one end of the water inlet pipe. Filter holes for filtering are provided on the filter cylinder, and a shielding plate for shielding the moving groove is fixedly connected to the water inlet pipe. Beneficial effects

[0013] 1. The present invention is provided with components such as a first nozzle, a second nozzle, and a piston plate. After sampling is completed, the inside of the piston cylinder is cleaned using the second nozzle, and then the inner wall of the piston cylinder is dried using the first nozzle, thus completing the cleaning of the inner wall of the piston cylinder. In this way, cross-contamination can be avoided, and the influence on subsequent sampling can be avoided.

[0014] 2. The present invention is provided with components such as a fixing plate. When the piston plate contacts the fixing plate, the piston plate still continues to move closer to the circular ring cylinder. Furthermore, the piston plate presses the movable plate, causing the elastic member to store elastic potential energy. When the second mounting block completely enters the circular ring cylinder, at this time, the first nozzle can dry the dead corner part, avoiding the residue of water stains. In this way, it can be ensured that the entire inside of the piston cylinder can be fully dried. Brief description of the drawings

[0015] Figure 1 is a schematic structural diagram of the present invention.

[0016] Figure 2 is a cross-sectional view of components such as the sampling box, water tank, and second sampling cylinder of the present invention.

[0017] Figure 3 is a partial schematic diagram of components such as the first sampling cylinder, second sampling cylinder, and third sampling cylinder of the present invention.

[0018] Figure 4 is a cross-sectional view of components such as the piston cylinder, fixing plate, and piston plate of the present invention.

[0019] Figure 5Cross-sectional view of the fixing plate of the present invention.

[0020] Figure 6 Cross-sectional view of the piston plate and piston cylinder of the present invention.

[0021] Figure 7 Cross-sectional view of the connecting valve of the present invention.

[0022] Figure 8 Cross-sectional view of components such as the piston cylinder, longitudinal guide plate, and transverse guide plate of the present invention.

[0023] Figure 9 Cross-sectional view of components such as the piston plate, push rod, and hot air blower of the present invention.

[0024] Figure 10 Partial schematic diagram of components such as the second electric push rod, second moving frame, and sliding plate of the present invention.

[0025] Figure 11 First state diagram of components such as the piston plate and fixing plate of the present invention.

[0026] Figure 12 Second state diagram of components such as the piston plate and fixing plate of the present invention.

[0027] The markings of each component in the drawings are as follows: 10, piston cylinder; 1001, ventilation hole; 11, fixing plate; 111, circular ring cylinder; 112, movable plate; 113, elastic member; 114, telescopic hose; 1121, first connection port; 1111, second connection port; 12, piston plate; 122, first mounting block; 123, second mounting block; 1221, air cavity; 1231, water cavity; 13, first nozzle; 14, second nozzle; 15, connecting valve; 151, valve body; 152, valve ball; 153, valve rod; 154, inductor; 155, sensor; 156, drive motor; 157, first gear; 158, second gear; 16, water inlet pipe; 21, longitudinal guide plate; 22, transverse guide plate; 23, fixed rod; 24, first moving frame; 25, first guide plate; 26, second guide plate; 27, first electric push rod; 31, second moving frame; 311, moving groove; 32, sliding plate; 33, second electric push rod; 34, push rod; 341, spiral groove; 35, fixed ring; 36, clamping ball; 41, water tank; 42, hot air blower; 43, water pump; 44, corrugated hose; 45, straight pipe; 51, mounting plate; 52, foot pedal; 53, third electric telescopic rod; 54, handle; 6, sampling box; 61, movable groove; 62, shutter; 7, filter cartridge; 81, first sampling cylinder; 82, second sampling cylinder; 83, third sampling cylinder. Detailed implementation manners

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] A sampling device for detecting sewage from rare earth ore, as Figures 1 - 12 shown, includes a sampling box 6. The sampling box 6 is driven by a driving device to realize lifting. In the middle of the sampling box 6, a third sampling cylinder 83 is arranged. Two first sampling cylinders 81 and two second sampling cylinders 82 are arranged symmetrically with the third sampling cylinder 83 as the center of symmetry. That is, in the order from top to bottom, they are arranged in the order of the first sampling cylinder 81, the second sampling cylinder 82, the third sampling cylinder 83, the second sampling cylinder 82, and the first sampling cylinder 81. The first sampling cylinder 81 and the second sampling cylinder 82 can both move relative to the third sampling cylinder 83 through an adjusting device, and the vertical distance between the second sampling cylinder 82 and the third sampling cylinder 83 is always equal to the vertical distance between the first sampling cylinder 81 and the corresponding second sampling cylinder 82 on the same side. In this way, the representativeness of each section of water body can be ensured, the error caused by inconsistent sampling intervals can be avoided, and the accuracy of the detection result can be improved. An activity slot 61 for the first sampling cylinder 81 and the second sampling cylinder 82 to move is arranged on the sampling box 6; The third sampling cylinder 83 includes a piston cylinder 10 arranged in the middle of the sampling box 6. The piston cylinder 10 is lidless and a fixed plate 11 is fixedly connected to the opening. A piston plate 12 is hermetically and movably connected in the piston cylinder 10. A water inlet is arranged on the fixed plate 11, and a water inlet pipe 16 is communicated at the water inlet. The water inlet pipe 16 extends to the outside of the sampling box 6. The water inlet pipe 16 is in an "L" shape for better subsequent water connection. A communication valve 15 is installed on the water inlet pipe 16. The communication valve 15 is arranged inside the sampling box 6 to prevent being polluted by sewage. A second nozzle 14 for cleaning the inner wall of the piston cylinder 10 and a first nozzle 13 for drying are installed on the piston plate 12. The settings of the first sampling cylinder 81 and the second sampling cylinder 82 are the same as those of the third sampling cylinder 83; Among them, the piston plate 12 is driven by a pushing device to move relative to the fixed plate 11; It can be seen from this that during sampling, first use the pushing device to push the piston plate 12 towards the fixed plate 11. When the fixed plate 11 contacts the piston plate 12, the air inside the piston cylinder 10 is emptied to ensure that the negative pressure during sampling can be smoothly generated. Then close the connecting valve 15. At the same time, use the adjusting device to adjust the vertical distance between the second sampling cylinder 82 and the third sampling cylinder 83 and the vertical distance between the first sampling cylinder 81 and the corresponding second sampling cylinder 82 to obtain a uniform sample. Then, use the driving device to place the sampling box 6 into the sewage of rare earth ore. After it descends to the sampling position, open the connecting valve 15 and at the same time start the pushing device, so that the piston plate 12 moves away from the fixed plate 11. As a result, suction is generated inside the piston cylinder 10 due to the negative pressure, and the sewage is sucked into the piston cylinder 10 through the water inlet pipe 16 and the water inlet. After the sampling work is completed, close the connecting valve 15, take out the sampling box 6 through the driving device, then start the pushing device and open the connecting valve 15, so that the piston plate 12 is pushed towards the fixed plate 11. Further, the sewage inside the piston cylinder 10 is pushed out by the piston plate 12 from the water inlet and the water inlet pipe 16. Use a container to catch the water at the water inlet pipe 16, and the sampled sewage can be obtained. When the piston plate 12 contacts the fixed plate 11, it means that all the sewage inside the piston cylinder 10 has been discharged. Then the device is reset, the connecting valve 15 is closed, and the second nozzle 14 is used to clean the inside of the piston cylinder 10. After the cleaning is completed, open the connecting valve 15, push the piston plate 12 through the pushing device, and discharge the cleaned sewage inside the piston cylinder 10. After repeating three times, use the first nozzle 13 to dry the inner wall of the piston cylinder 10, and the cleaning of the inner wall of the piston cylinder 10 can be completed. In this way, cross-contamination can be avoided, and the subsequent sampling can be prevented from being affected.

[0030] Furthermore, in order to facilitate the use of this device, the driving device includes a mounting plate 51. A third electric telescopic rod 53 is installed on the mounting plate 51. The telescopic rod of the third electric telescopic rod 53 is fixedly connected to the sampling box 6. A foot pedal 52 and a handle 54 are fixedly connected to the side of the mounting plate 51 away from the sampling box 6. The foot pedal 52 is arranged at the lower end of the mounting plate 51, and the handle 54 is arranged at the upper end of the mounting plate 51. It can be seen from this that when using this device, place the foot pedal 52 on the ground by the river, step on the foot pedal 52 with one foot, and hold the handle 54 with one hand. In this way, the mounting plate 51 is fixed on the bank to ensure that the entire device will not slide or shift during use. Then start the third electric telescopic rod 53, and the telescopic rod of the third electric telescopic rod 53 drives the sampling box 6 to move up and down to ensure that the sampling box 6 can accurately reach the sampling position and perform sampling. At the same time, by using the third electric telescopic rod 53, the staff can conveniently adjust the height of the sampling box 6 to ensure that the sampling box 6 accurately enters the water or takes out the sample from the water. In this way, the staff only needs to stabilize the device through the foot pedal 52 and the handle 54, which is simple and intuitive, reduces cumbersome steps, and makes the overall operation more convenient and efficient.

[0031] Furthermore, in order to better clean the interior of the piston cylinder 10, the piston plate 12 includes a first mounting block 122 that is hermetically slidably and rotatably connected within the piston cylinder 10. A second mounting block 123 is fixedly connected to the side of the first mounting block 122 close to the fixed plate 11. An air chamber 1221 and a water chamber 1231 are respectively arranged inside the first mounting block 122 and the second mounting block 123. The first mounting block 122 is conical. The first nozzle 13 is circumferentially arranged on the inclined side wall of the first mounting block 122 and communicates with the air chamber 1221. The conical design of the first mounting block 122 leaves a space between the first mounting block 122 and the inner wall of the piston cylinder 10 for drying. An air vent hole 1001 for gas flow is arranged at the end of the piston cylinder 10 far from the opening, so that the gas can flow out conveniently. The second mounting block 123 is cylindrical. The second nozzle 14 is arranged on the side surface of the second mounting block 123 close to the fixed plate 11 and communicates with the water chamber 1231. The outer wall of the second mounting block 123 is in sealed contact with the inner wall of the piston cylinder 10. It can be seen that the cleaning liquid and the drying gas respectively enter the water chamber 1231 and the air chamber 1221, and the cleaning liquid is ejected by the second nozzle 14, and the drying gas is ejected by the first nozzle 13. When the interior of the piston cylinder 10 needs to be cleaned, the device is reset as shown in Figure 4 shown, then the connection valve 15 is closed. Then the cleaning liquid enters the water chamber 1231, and the cleaning liquid is ejected by the second nozzle 14, so that the inner wall of the piston cylinder 10 can be cleaned. After the cleaning is completed, the pushing device is started and the connection valve 15 is opened. The pushing device drives the piston plate 12 to move towards the fixed plate 11, and then the cleaning liquid inside the piston cylinder 10 is squeezed out, so as to achieve the effect of cleaning the inner wall of the piston cylinder 10. After repeating three times, the interior of the piston cylinder 10 can be cleaned, but there will still be water stains remaining on the inner wall. At this time, the pushing device is started again, so that the piston plate 12 slowly approaches the fixed plate 11. At the same time, hot air is introduced into the air chamber 1221, and the hot air is ejected by the first nozzle 13. The hot air can dry the water stains remaining on the inner wall of the piston cylinder 10, so that it can be ensured that the piston cylinder 10 will not be contaminated by the previous round of samples each time a sample is taken, thereby improving the accuracy and representativeness of the sample. It should be added that since the outer wall of the second mounting block 123 is in sealed contact with the inner wall of the piston cylinder 10, the liquid (referring to the sampled sewage and the cleaning liquid) will only be stored inside the piston cylinder 10 as shown in Figure 4 the left end position, and will not cross the second mounting block 123 to reach the right end position inside the piston cylinder 10. Figure 4 At the same time, in order to prevent the liquid or gas from flowing back or the liquid from flowing into the water chamber 1231 from the second nozzle 14, check valves are arranged between the first nozzle 13 and the air chamber 1221 and between the second nozzle 14 and the water chamber 1231. The cleaning liquid is specifically clean water, and the drying gas is specifically hot air.

[0032] Furthermore, due to the thickness limitation of the piston plate 12, after the piston plate 12 contacts the fixed plate 11, inevitably, part of the piston cylinder 10 cannot be completely dried. This device can solve this problem. The fixed plate 11 includes an annular cylinder 111 fixedly connected to one end of the piston cylinder 10. An activity plate 112 is slidably connected in the annular cylinder 111 in a sealed manner. The diameter of the activity plate 112 is greater than or equal to that of the second mounting block 123. An elastic member 113 is arranged between the activity plate 112 and the annular cylinder 111. The elastic member 113 is specifically a spring. A first connection port 1121 and a second connection port 1111 are respectively arranged on the activity plate 112 and the annular cylinder 111. A telescopic hose 114 is connected between the first connection port 1121 and the second connection port 1111 in a sealed manner. The first connection port 1121, the second connection port 1111 and the telescopic hose 114 together form a water inlet. Thus, it can be known that after the piston plate 12 contacts the fixed plate 11, as Figure 11 shown, at this time, the second mounting block 123 still contacts the inner wall of part of the piston cylinder 10, so that the drying gas cannot completely dry the inner wall of the piston cylinder 10, and there will still be dead corners that cannot be completely cleaned. At this time, the piston plate 12 continues to move closer to the annular cylinder 111. Then the piston plate 12 presses the activity plate 112, so that the elastic member 113 stores elastic potential energy. When the second mounting block 123 completely enters the annular cylinder 111, as Figure 12 shown, at this time, the first nozzle 13 can dry the dead corner part, avoiding the residue of water stains, so as to ensure that the entire inside of the piston cylinder 10 can be fully dried.

[0033] Furthermore, in order to more precisely control the distances between the first sampling cylinder 81, the second sampling cylinder 82, and the third sampling cylinder 83, and at the same time to ensure the representativeness of each section of water body and avoid errors caused by inconsistent sampling intervals, the adjusting device includes longitudinal guide plates 21 symmetrically fixed in the sampling box 6. The longitudinal guide plates 21 are arranged at the movable slots 61. A transverse guide plate 22 is slidably connected to the longitudinal guide plates 21. The piston cylinder 10 is fixedly connected to the corresponding transverse guide plate 22. A fixed rod 23 is fixedly connected to the outer side wall of the transverse guide plate 22. A first moving frame 24 is slidably connected in the sampling box 6. The first moving frame 24 is driven by a first electric push rod 27 installed in the sampling box 6 to achieve sliding. First guide plates 25 and second guide plates 26 are symmetrically fixed on the first moving frame 24, that is, they are arranged in the order of the first guide plate 25, the second guide plate 26, the second guide plate 26, and the first guide plate 25 from top to bottom. The fixed rod 23 slides in the corresponding first guide plate 25 or second guide plate 26. That is, the fixed rod 23 on the first sampling cylinder 81 slides in the first guide plate 25, and the fixed rod 23 on the second sampling cylinder 82 slides in the second guide plate 26. Among them, the first guide plate 25 and the second guide plate 26 are inclined, and the projected lengths of the first guide plate 25 and the second guide plate 26 in the vertical direction are kept equal, but the length of the first guide plate 25 is twice that of the second guide plate 26. Thus, the distance that the first sampling cylinder 81 moves is twice that of the second sampling cylinder 82. It can be seen from this that when the first electric push rod 27 is started and the telescopic rod of the first electric push rod 27 retracts, the first moving frame 24 is driven to retract, so that the first guide plate 25 and the second guide plate 26 squeeze the corresponding fixed rod 23, and then the first sampling cylinder 81 and the second sampling cylinder 82 move towards the third sampling cylinder 83. And because the distance that the first sampling cylinder 81 moves is twice that of the second sampling cylinder 82, the vertical distance between the second sampling cylinder 82 and the third sampling cylinder 83 and the vertical distance between the first sampling cylinder 81 and the corresponding second sampling cylinder 82 are always kept equal. Since the vertical position of the third sampling cylinder 83 is fixed, the sampling depth can be calculated through the position of the third sampling cylinder 83. At the same time, through components such as the first guide plate 25 and the second guide plate 26, it can be ensured that the sampling intervals in the vertical direction are always equal, ensuring the representativeness of each section of water body and avoiding errors caused by inconsistent sampling intervals, improving the accuracy of the detection results. At the same time, the first guide plate 25 and the second guide plate 26 are used to adjust the sampling interval to adapt to different types of sampling scenarios.

[0034] Further, in order to achieve a better cleaning effect, the pushing device includes a second moving frame 31 slidably connected inside the sampling box 6. The second moving frame 31 is driven by a second electric push rod 33 installed inside the sampling box 6 to achieve sliding. A moving groove 311 is provided on the second moving frame 31, and five sliding plates 32 are provided in the moving groove 311. A push rod 34 is provided between the sliding plate 32 and the piston plate 12. One end of the push rod 34 is rotatably connected to the sliding plate 32, and the other end is fixedly connected to the first mounting block 122. A fixing ring 35 is fixedly connected between the two transverse guide plates 22. A spiral groove 341 is provided on the push rod 34, and a clamping ball 36 matching the spiral groove 341 is fixedly connected inside the fixing ring 35. The push rod 34 is of a hollow type, and two straight pipes 45 are provided inside the push rod 34. One of the straight pipes 45 is communicated with the air chamber 1221, and the other is communicated with the water chamber 1231. A water tank 41 is fixedly connected inside the sampling box 6, and the water tank 41 is filled with a cleaning liquid. A hot air blower 42 and a water pump 43 are installed outside the water tank 41. The hot air blower 42 is communicated with the corresponding straight pipe 45 through a corrugated hose 44. One end of the water pump 43 is communicated with the water tank 41, and the other end is communicated with the corresponding straight pipe 45 through another corrugated hose 44. It can be seen that when the second electric push rod 33 is started, the telescopic rod of the second electric push rod 33 drives the second moving frame 31 to move, and then the second moving frame 31 drives the push rod 34 and the piston plate 12 to move. When cleaning is required, the water pump 43 is started, and the water pump 43 conveys the cleaning liquid in the water tank 41 to the water chamber 1231 through the corresponding corrugated hose 44 and the corresponding straight pipe 45, and the cleaning liquid is sprayed out by the second nozzle 14 to achieve the purpose of cleaning the piston cylinder 10. When drying the inner wall of the piston cylinder 10 is required, the hot air blower 42 is started, and the hot air blower 42 conveys the drying gas to the air chamber 1221 through the corresponding corrugated hose 44 and the corresponding straight pipe 45, and the drying gas is sprayed out by the first nozzle 13. While the push rod 34 is moving, the spiral groove 341 on the outer wall of the push rod 34 meshes with the clamping ball 36, so that the push rod 34 rotates, and then the push rod 34 drives the piston plate 12 to rotate, and then drives the first nozzle 13 and the second nozzle 14 to rotate. In this way, it can be ensured that the cleaning liquid and the drying gas can contact every corner of the inner wall of the piston cylinder 10, improving the comprehensiveness and effect of cleaning, ensuring that the inner wall of the piston cylinder 10 can be thoroughly cleaned, and at the same time, rotation can also prevent liquid or gas from accumulating in certain parts.

[0035] Furthermore, in order to more conveniently and accurately understand the data of the sewage, such as the water temperature, the temperature change of the sewage may affect other water quality parameters, such as dissolved oxygen, pollutant degradation rate, etc. The connecting valve 15 of this device includes a valve body 151 connected between the water inlet pipe 16 and the water inlet. A valve ball 152 is rotatably connected in the valve body 151 in a sealed manner. One side of the valve ball 152 is fixedly connected with a valve rod 153. The valve rod 153 penetrates through the valve body 151 and extends to the outside of the valve body 151. The valve rod 153 is hollow. A sensor 155 is installed on the outer wall of the valve body 151. An inductor 154 is arranged in the valve ball 152. The inductor 154 is specifically a thermal sensor. The inductor 154 penetrates through the valve rod 153 and is electrically connected to the sensor 155. A driving motor 156 is installed on the outer wall of the valve body 151. A first gear 157 is fixedly connected to the output shaft of the driving motor 156. A second gear 158 meshing with the first gear 157 is fixedly connected to the valve rod 153. It can be seen from this that when the piston cylinder 10 sucks in sewage, the sewage passes through the inside of the valve ball 152. Furthermore, the inductor 154 will generate an electrical signal according to the change of the water flow temperature. The signal of the inductor 154 will be transmitted to the sensor 155. The sensor 155 receives the signal and records the electrical signal transmitted by the inductor 154. These signals represent the data of the water flow temperature. In this way, it is more convenient and accurate to understand the data of the sewage. At the same time, the driving motor 156 is started. The output shaft of the driving motor 156 drives the first gear 157 to rotate. The first gear 157 drives the second gear 158 to rotate through meshing transmission. The second gear 158 drives the valve ball 152 to rotate. In this way, the opening and closing of the water inlet pipe 16 can be controlled to ensure precise control.

[0036] Furthermore, in order to prevent solid particles from entering the inside of the piston cylinder 10, one end of the water inlet pipe 16 away from the piston cylinder 10 is provided with a thread, and a filter cylinder 7 is threadedly connected to one end of the water inlet pipe 16. The filter cylinder 7 is provided with filter holes for filtering. The filter cylinder 7 can prevent solid impurities from entering the inside of the piston cylinder 10. And the filter cylinder 7 is threadedly connected to the water inlet pipe 16, which can facilitate the replacement of the filter cylinder 7 with different filter hole diameters. In this way, when treating different water qualities, a suitable filter hole diameter can be selected to ensure that the filtering effect can meet the requirements and increase the adaptability of the device. A baffle 62 for blocking the movable groove 61 is fixedly connected to the water inlet pipe 16. The setting of the baffle 62 can prevent sewage from entering the sampling box 6.

[0037] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, those skilled in the art should understand that various changes in form and detail may be made therein without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above embodiments, but should be determined not only by the appended claims but also by the equivalents of the appended claims.

Claims

1. A sampling device for detecting rare earth ore sewage, characterized in that, It includes a sampling box (6), and the sampling box (6) is driven by a driving device to realize lifting. A third sampling cylinder (83) is arranged in the middle of the sampling box (6). Two first sampling cylinders (81) and two second sampling cylinders (82) are arranged symmetrically with the third sampling cylinder (83) as the center of symmetry. The first sampling cylinder (81) and the second sampling cylinder (82) are both moved relative to the third sampling cylinder (83) through an adjusting device, and the distance between the second sampling cylinder (82) and the third sampling cylinder (83) and the vertical distance between the first sampling cylinder (81) and the corresponding second sampling cylinder (82) always remain equal. An activity slot (61) for the first sampling cylinder (81) and the second sampling cylinder (82) to move is arranged on the sampling box (6). The third sampling cylinder (83) includes a piston cylinder (10) arranged in the middle of the sampling box (6). The piston cylinder (10) is of a lidless type and a fixing plate (11) is fixedly connected to the opening. A piston plate (12) is hermetically and movably connected in the piston cylinder (10). A water inlet is arranged on the fixing plate (11), and a water inlet pipe (16) is communicated with the water inlet. A communication valve (15) is installed on the water inlet pipe (16). A second nozzle (14) for cleaning the inner wall of the piston cylinder (10) and a first nozzle (13) for drying are installed on the piston plate (12). The first sampling cylinder (81) and the second sampling cylinder (82) are arranged in the same way as the third sampling cylinder (83). Among them, the piston plate (12) is driven by a pushing device to move relative to the fixing plate (11).

2. The sampling device for detecting rare earth ore sewage according to claim 1, characterized in that, The piston plate (12) includes a first mounting block (122) that is hermetically slid and rotatably connected in the piston cylinder (10). A second mounting block (123) is fixedly connected to the side of the first mounting block (122) close to the fixing plate (11). An air cavity (1221) and a water cavity (1231) are respectively arranged inside the first mounting block (122) and the second mounting block (123). The first mounting block (122) is conical, and the second mounting block (123) is cylindrical. The first nozzle (13) is circumferentially arranged on the inclined side wall of the first mounting block (122) and communicated with the air cavity (1221). The second nozzle (14) is arranged on the side surface of the second mounting block (123) close to the fixing plate (11) and communicated with the water cavity (1231). The outer wall of the second mounting block (123) is in sealed contact with the inner wall of the piston cylinder (10). A ventilation hole (1001) for gas to flow through is arranged at the end of the piston cylinder (10) far from the opening.

3. The sampling device for detecting rare earth ore sewage according to claim 2, characterized in that, The fixed plate (11) includes an annular cylinder (111) fixedly connected to the opening of the piston cylinder (10). An activity plate (112) is hermetically and slidably connected inside the annular cylinder (111). An elastic member (113) is arranged between the activity plate (112) and the annular cylinder (111). A first connection port (1121) and a second connection port (1111) are respectively arranged on the activity plate (112) and the annular cylinder (111). A telescopic hose (114) is hermetically connected between the first connection port (1121) and the second connection port (1111). The first connection port (1121), the second connection port (1111) and the telescopic hose (114) together form a water inlet.

4. The sampling device for detecting rare earth ore sewage according to claim 1, characterized in that, The connecting valve (15) includes a valve body (151) connected between the water inlet pipe (16) and the water inlet. A valve ball (152) is hermetically and rotatably connected inside the valve body (151). A valve rod (153) is fixedly connected to one side of the valve ball (152). The valve rod (153) penetrates through the valve body (151) and extends to the outside of the valve body (151). The valve rod (153) is hollow. A sensor (155) is installed on the outer side wall of the valve body (151). An inductor (154) is arranged inside the valve ball (152). The inductor (154) penetrates through the valve rod (153) and is electrically connected to the sensor (155). A driving motor (156) is installed on the outer side wall of the valve body (151). A first gear (157) is fixedly connected to the output shaft of the driving motor (156). A second gear (158) meshing with the first gear (157) is fixedly connected to the valve rod (153).

5. A sampling device for detecting rare earth ore sewage according to claim 1, characterized in that, The adjusting device includes longitudinally guiding plates (21) symmetrically and fixedly connected inside the sampling box (6). A laterally guiding plate (22) is slidably connected to the longitudinally guiding plates (21). The piston cylinder (10) is fixedly connected to the corresponding laterally guiding plate (22). A fixing rod (23) is fixedly connected to the outer side wall of the laterally guiding plate (22). A first moving frame (24) is slidably connected inside the sampling box (6). The first moving frame (24) is driven by a first electric push rod (27) installed inside the sampling box (6) to realize sliding. First guiding plates (25) and second guiding plates (26) are symmetrically and fixedly connected to the first moving frame (24). The fixing rod (23) slides inside the corresponding first guiding plate (25) or second guiding plate (26); wherein the first guiding plates (25) and the second guiding plates (26) are inclined, and the projected lengths of the first guiding plates (25) and the second guiding plates (26) in the vertical direction are kept equal, but the length of the first guiding plate (25) is twice that of the second guiding plate (26).

6. The sampling device for detecting rare earth ore sewage according to claim 5, characterized in that, The pushing device includes a second moving frame (31) slidably connected inside the sampling box (6). The second moving frame (31) is driven by a second electric push rod (33) installed inside the sampling box (6) to realize sliding. A moving groove (311) is arranged on the second moving frame (31). Five sliding plates (32) are arranged inside the moving groove (311). A pushing rod (34) is arranged between the sliding plate (32) and the piston plate (12).

7. A sampling device for detecting rare earth ore sewage according to claim 6, characterized in that, One end of the push rod (34) is rotatably connected to the sliding plate (32), and the other end is fixedly connected to the first mounting block (122). A fixing ring (35) is fixedly connected between the two transverse guide plates (22). A spiral groove (341) is provided on the push rod (34). A clamping ball (36) that matches the spiral groove (341) is fixedly connected inside the fixing ring (35). The push rod (34) is hollow. Two straight pipes (45) are arranged inside the push rod (34). One of the straight pipes (45) is communicated with the air cavity (1221), and the other is communicated with the water cavity (1231). A water tank (41) is fixedly connected inside the sampling box (6). A hot air blower (42) and a water pump (43) are installed outside the water tank (41). The hot air blower (42) is communicated with the corresponding straight pipe (45) through a corrugated hose (44). One end of the water pump (43) is communicated with the water tank (41), and the other end is communicated with the corresponding straight pipe (45) through another corrugated hose (44).

8. The sampling device for detecting rare earth ore sewage according to claim 1, characterized in that, The driving device includes a mounting plate (51). A third electric telescopic rod (53) is installed on the mounting plate (51). The telescopic rod of the third electric telescopic rod (53) is fixedly connected to the sampling box (6). A foot pedal (52) and a handle (54) are fixedly connected to one side of the mounting plate (51) away from the sampling box (6).

9. A sampling device for detecting rare earth ore sewage according to any one of claims 1-8, characterized in that, The end of the water inlet pipe (16) away from the piston cylinder (10) is provided with a thread, and one end of the water inlet pipe (16) is threadedly connected with a filter cylinder (7). Filter holes for filtering are provided on the filter cylinder (7). A shielding plate (62) for shielding the movable groove (61) is fixedly connected to the water inlet pipe (16).

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