A fast and efficient liquid purification device for food safety detection

Abstract

The present invention discloses a fast and efficient liquid purification device for food safety detection, specifically relating to the technical field of food detection. It includes a purification box and a sealed box cover. A heat conduction plate groove is formed on the inner wall of the purification box, and a heating plate groove is formed on the inner wall of the heat conduction plate groove. An annular heating plate is fixedly arranged inside the heating plate groove, and an annular heat conduction plate is fixedly arranged inside the heat conduction plate groove. A centrifugal mesh box is arranged at the bottom end inside the purification box. A motor is fixedly arranged at the top end of the sealed box cover. A crushing and filtering mechanism is arranged on one side of the purification box, and a condensation mechanism is arranged on the front side of the purification box. By directly pumping the liquid dissolved from the crushed food into the purification box for centrifugation and distillation purification, the whole purification process can be completed at one time. The purification process is relatively simple and convenient, reducing the workload of the detection personnel. Moreover, the purification speed is fast, the purification efficiency is high, and the use effect is good.

Description

Technical Field

[0001] The present invention relates to the technical field of food detection, and particularly relates to a fast and efficient liquid purification device for food safety detection. Background Art

[0002] The foods we consume in life all need to undergo safety detection. Food safety detection is to detect harmful substances in foods according to national standards, mainly the detection of some harmful and toxic indicators, such as heavy metals, aflatoxins, etc. Only foods that pass the food safety detection can be sold to people for consumption. In the process of food safety detection, the food is first crushed, and then different organic solvents are added to the crushed food according to the substances to be detected. The solvent dissolves the substances to be detected, and then the solvent containing the substances to be detected is purified, and then the purified solution is detected, so that the substances to be detected can be detected more easily.

[0003] Currently, when the liquid purification device for food detection is actually used, each process is carried out separately. The purification process is rather troublesome and takes a long time, increasing the workload of the detection personnel, resulting in a slower purification speed and a lower purification efficiency.

[0004] Therefore, it is very necessary to invent a fast and efficient liquid purification device for food safety detection to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a fast and efficient liquid purification device for food safety detection. By directly pumping the liquid dissolved from the crushed food into the purification box for centrifugation and distillation purification, the entire purification process can be completed at one time. The purification process is relatively simple and convenient, reducing the workload of the detection personnel, and having a faster purification speed, a higher purification efficiency, and a better use effect, so as to solve the above deficiencies in the technology.

[0006] To achieve the above object, the present invention provides the following technical solution: A fast and efficient liquid purification device for food safety detection, including a purification box and a sealed box cover. The sealed box cover is arranged at the top of the purification box. A heat conduction plate groove is opened on the inner wall of the purification box, and a heating plate groove is opened on the inner wall of the heat conduction plate groove. The heating plate groove is internally communicated with the heat conduction plate groove. An annular heating plate is fixedly arranged inside the heating plate groove, and an annular heat conduction plate is fixedly arranged inside the heat conduction plate groove. The annular heat conduction plate is arranged inside the annular heating plate. A centrifugal mesh box is arranged at the bottom end inside the purification box. A motor is fixedly arranged at the top end of the sealed box cover. A first rotating rod is fixedly arranged at the top end of the centrifugal mesh box. The top end of the first rotating rod passes through the top end of the sealed box cover and is fixedly connected to the output shaft of the motor. The top end of the first rotating rod is rotatably connected to the top end of the sealed box cover through a bearing. A cleaning and stirring mechanism is arranged outside and inside the centrifugal mesh box. A crushing and filtering mechanism is arranged on one side of the purification box. A condensing mechanism is arranged on the front side of the purification box.

[0007] Preferably, the cleaning and stirring mechanism includes four first connecting rods. The four first connecting rods are fixedly arranged at the outer end of the centrifugal mesh box. One heat-resistant rubber scraper is fixedly arranged at one end of every two first connecting rods. The outer end of the heat-resistant rubber scraper is in contact with the inner wall of the annular heat conduction plate, and can scrape off the liquid on the inner wall of the annular heat conduction plate. Two stirring rods are fixedly arranged at the outer end of the first connecting rod. The stirring rods are arranged between the centrifugal mesh box and the heat-resistant rubber scraper, facilitating the stirring of the liquid. A first installation groove is opened at the bottom end of the purification box. The first installation groove is arranged inside the bottom end of the centrifugal mesh box. A first installation plate is arranged inside the first installation groove. The first installation plate is connected to the bottom end of the purification box through screws. A hollow fixed rod is fixedly arranged at the top end of the first installation plate. Four second connecting rods are fixedly arranged at the outer end of the hollow fixed rod. One cleaning rod is fixedly arranged at one end of every two second connecting rods. A cleaning brush is fixedly arranged on the outer side of the cleaning rod. The outer side of the cleaning brush is in contact with the inner wall of the centrifugal mesh box, and can clean the filter residue inside the centrifugal mesh box to prevent it from being blocked. A sliding groove is opened at the bottom end inside the purification box. The sliding groove is arranged outside the first installation groove. A slider is arranged inside the sliding groove. The top end of the slider is fixedly connected to the bottom end of the centrifugal mesh box, facilitating the limitation of the centrifugal mesh box and also facilitating its rotation.

[0008] Preferably, the crushing and filtering mechanism includes a crushing box arranged on one side of the purification box. A second rotating rod is arranged inside the crushing box. The top end of the second rotating rod passes through the top end of the crushing box and is rotatably connected to the top end of the crushing box through a bearing. A plurality of crushing knives are fixedly arranged at the outer end of the second rotating rod. A second installation groove is formed at the bottom end of the crushing box. A second installation plate is arranged inside the second installation groove. The second installation plate is connected to the bottom end of the crushing box by screws. A filter screen box is fixedly arranged at the top end of the second installation plate. The filter screen box is arranged at the bottom of the second rotating rod, facilitating the crushing of food samples.

[0009] Preferably, a first water pump is arranged at the bottom of the crushing box. The liquid inlet end of the first water pump is fixedly provided with a liquid inlet pipe. One end of the liquid inlet pipe passes through the bottom end of the second installation plate and is communicated with the inside of the filter screen box. The liquid outlet end of the liquid inlet pipe is fixedly provided with a liquid outlet pipe. One end of the liquid outlet pipe passes through the bottom end of the first installation plate and is communicated with the inside of the hollow fixed rod. A plurality of liquid leakage holes are formed at the outer end of the hollow fixed rod. The liquid leakage holes are arranged between the four second connecting rods, facilitating the pumping of the liquid inside the crushing box into the centrifugal screen box.

[0010] Preferably, a first pulley is fixedly arranged at the outer end of the first rotating rod. The first pulley is arranged between the sealed box cover and the motor. A second pulley is fixedly arranged at the top end of the second rotating rod. The second pulley is arranged at the top of the crushing box. The first pulley and the second pulley are connected by a belt, facilitating the transmission connection between the first rotating rod and the second rotating rod.

[0011] Preferably, a feeding pipe is fixedly arranged at the top end of the crushing box. The feeding pipe is arranged on the side of the second pulley away from the sealed box cover. The bottom end of the feeding pipe passes through the top end of the crushing box and is communicated with the inside of the crushing box. The top end of the feeding pipe is fixedly provided with a feeding groove, facilitating the feeding of materials into the crushing box.

[0012] Preferably, the condensation mechanism includes a condensation box provided on the front side of the purification box. A gas outlet pipe is fixedly provided at the top of the sealed box cover. One end of the gas outlet pipe passes through the top of the sealed box cover and is communicated with the inside of the purification box. The other end of the gas outlet pipe passes through the top of the condensation box and extends into the inside of the condensation box. A condensation pipe is fixedly provided at the other end of the gas outlet pipe. One end of the condensation pipe is fixedly provided with a condensation water outlet pipe. One end of the condensation water outlet pipe passes through the bottom of the condensation box and extends to one side of the condensation box. A cooling water tank is provided on the other side of the condensation box. The cooling water tank is provided on the front side of the crushing box. A second water pump is fixedly provided at the top of the cooling water tank. The water inlet end of the second water pump is fixedly provided with a water inlet pipe. One end of the water inlet pipe passes through the top of the cooling water tank and extends into the inside of the cooling water tank. The water outlet end of the second water pump is fixedly provided with a water outlet pipe. One end of the water outlet pipe passes through the outer end of the bottom of the condensation box and is communicated with the inside of the condensation box, which can promptly condense the discharged steam, avoid the situation of directly discharging it, protect the environment of the detection site, and also save water resources.

[0013] Preferably, a cavity is formed inside the wall of the crushing box. A connecting pipe is fixedly provided at the outer end of the top of the condensation box. One end of the connecting pipe is communicated with the inside of the condensation box. The other end of the connecting pipe passes through the outer end of the bottom of the crushing box and is communicated with the inside of the cavity. A circulating pipe is fixedly provided at the outer end of the top of the crushing box. One end of the circulating pipe is communicated with the inside of the cavity. The other end of the circulating pipe passes through the top of the cooling water tank and is communicated with the inside of the cooling water tank. The circulating pipe is provided on the side of the water inlet pipe away from the second water pump, which is convenient for the hot water after heat exchange to heat the inside of the crushing box, can improve the dissolution efficiency, and reduce the time for substance dissolution.

[0014] Preferably, a water adding pipe is fixedly provided at the top of the cooling water tank. The water adding pipe is provided on the side of the circulating pipe away from the water inlet pipe. One end of the water adding pipe passes through the top of the cooling water tank and is communicated with the inside of the cooling water tank. A first valve is fixedly provided on the water adding pipe, which is convenient for adding water into the cooling water tank.

[0015] Preferably, a solution cooling box is provided on one side of the purification box away from the crushing box. One end of the condensation water outlet pipe passes through the top end of the front side of the solution cooling box and is communicated with the inside of the solution cooling box. The bottom end of the purification box is fixedly provided with a solution outflow pipe. The solution outflow pipe is arranged on one side of the first mounting plate. One end of the solution outflow pipe is communicated with the inside of the purification box. The other end of the solution outflow pipe passes through one side of the solution cooling box and extends into the inside of the solution cooling box. A second valve is fixedly provided on the solution outflow pipe. One end of the solution outflow pipe is fixedly provided with a heat conduction pipe. The heat conduction pipe is arranged in the solution cooling box. One end of the heat conduction pipe is fixedly provided with a drain pipe. One end of the drain pipe passes through the other side of the solution cooling box and extends to the outside of the solution cooling box. A third valve is fixedly provided on the drain pipe. The rear side of the solution cooling box is fixedly provided with a condensed water discharge pipe. One end of the condensed water discharge pipe is communicated with the inside of the solution cooling box. A fourth valve is fixedly provided on the condensed water discharge pipe. The discharged condensed water can be used for cooling, which speeds up the cooling speed and improves the purification efficiency.

[0016] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0017] 1. The liquid dissolving the substance to be measured is pumped into the hollow fixed rod by the first water pump, and then flows into the centrifugal mesh box through the liquid leakage holes. The motor is started, and the output shaft of the motor drives the first rotating rod and the centrifugal mesh box to rotate. The centrifugal mesh box drives the first connecting rod, the heat-resistant rubber scraping plate and the stirring rod to rotate. The rotation of the centrifugal mesh box will drive the liquid to rotate and perform centrifugal filtration on the liquid. The annular heating plate is energized, and the annular heating plate will generate heat and distill and purify the liquid. The heat-resistant rubber scraping plate will scrape off the liquid on the inner wall of the annular heat conduction plate, which can prevent the liquid from sticking to the inner wall of the annular heat conduction plate for a long time and causing charring. The rotating stirring rod will stir the liquid, which can make the heating more uniform and the water evaporate faster. When the centrifugal mesh box is rotating centrifugally, the cleaning brush inside the centrifugal mesh box will clean the inner wall of the centrifugal mesh box. By directly pumping the liquid dissolved from the crushed food into the purification box for centrifugal and distillation purification, the whole purification process can be completed at one time. The purification process is relatively simple and convenient, reducing the workload of the testing personnel, and the purification speed is relatively fast, the purification efficiency is relatively high, and the use effect is good;

[0018] 2. The first rotating rod drives the second rotating rod to rotate, and the second rotating rod drives the crushing knife to rotate. The crushing knife crushes the food sample. The crushed food will be in full contact with the solvent, so that the substance to be detected will be dissolved in the solvent. When the solution is pumped away by the liquid inlet pipe, the filter mesh box will filter the larger food fragments. By directly connecting the crushing mechanism on one side of the purification box, the purification equipment can be more concentrated, and the purification and sampling work of the sample can be completed at one time, and the number of motors used can be reduced, saving resources;

[0019] 3. The cooling water inside the cooling water tank is pumped into the condensation box by the second water pump. The steam in the condensation pipe will exchange heat with the cooling water in the condensation box and condense into water. The temperature of the water in the condensation box will rise. The water with the increased temperature will flow into the cavity through the connecting pipe. The water in the cavity will transfer part of the heat to the inside of the crushing box. After the water with heat diffuses the heat to the inside of the crushing box, the water will flow back into the cooling water tank through the circulation pipe for cooling, while the condensed water will flow into the solution cooling box through the condensation outlet pipe. The liquid exchanges heat with the condensed water inside the solution cooling box in the heat conduction pipe. By condensing the steam to transfer its heat to the cooling water and then using the heat in the cooling water to heat the inside of the crushing box, the dissolution efficiency of the test substance can be effectively improved, thereby improving the purification efficiency. And the condensed water can cool the purified liquid, effectively accelerating the cooling speed of the purified liquid, further reducing the purification time, and thus improving the purification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is the overall structural schematic diagram of the present invention;

[0022] Figure 2 is the overall three-dimensional structural schematic diagram of the present invention;

[0023] Figure 3 is the overall three-dimensional structural schematic diagram of the present invention;

[0024] Figure 4 is the overall three-dimensional sectional structural schematic diagram of the present invention;

[0025] Figure 5 is the three-dimensional sectional structural schematic diagram of the centrifugal mesh box of the present invention;

[0026] Figure 6 is of the present invention Figure 4 magnified structural schematic diagram of A therein;

[0027] Figure 7 is of the present invention Figure 4 magnified structural schematic diagram of B therein;

[0028] Figure 8 is the three-dimensional sectional structural schematic diagram of the condensation box of the present invention;

[0029] Figure 9This is a schematic three-dimensional sectional view of the solution cooling box of the present invention.

[0030] Explanation of reference numerals:

[0031] 1 Purification box, 2 Sealing box cover, 3 Heat conduction plate groove, 4 Heating plate groove, 5 Ring-shaped heating plate, 6 Ring-shaped heat conduction plate, 7 Centrifugal screen box, 8 Motor, 9 First rotating rod, 10 First connecting rod, 11 Heat-resistant rubber scraping plate, 12 Stirring rod, 13 First installation groove, 14 First installation plate, 15 Hollow fixed rod, 16 Second connecting rod, 17 Cleaning rod, 18 Cleaning brush, 19 Liquid leakage hole, 20 Crushing box, 21 Second rotating rod, 22 Crushing knife, 23 Second installation groove, 24 Second installation plate, 25 Filter screen box, 26 First water pump, 27 Liquid inlet pipe, 28 Liquid outlet pipe, 29 First pulley, 30 Second pulley, 31 Belt, 32 Feeding pipe, 33 Feeding groove, 34 Cavity, 35 Condensation box, 36 Air outlet pipe, 37 Condensation pipe, 38 Condensate outlet pipe, 39 Cooling water tank, 40 Second water pump, 41 Water inlet pipe, 42 Water outlet pipe, 43 Connecting pipe, 44 Circulation pipe, 45 Water adding pipe, 46 Solution cooling box, 47 Solution outflow pipe, 48 Heat conduction pipe, 49 Drain pipe, 50 Condensate discharge pipe, 51 Slide groove, 52 Slide block. Detailed implementation manners

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] The present invention provides a fast and efficient liquid purification device for food safety detection as shown in Figures 1-6 which includes a purification box 1 and a sealing box cover 2. The sealing box cover 2 is arranged at the top of the purification box 1. A heat conduction plate groove 3 is opened on the inner wall of the purification box 1. A heating plate groove 4 is opened on the inner wall of the heat conduction plate groove 3. The heating plate groove 4 is internally communicated with the heat conduction plate groove 3. A ring-shaped heating plate 5 is fixedly arranged inside the heating plate groove 4. A ring-shaped heat conduction plate 6 is fixedly arranged inside the heat conduction plate groove 3. The ring-shaped heat conduction plate 6 is arranged inside the ring-shaped heating plate 5. A centrifugal screen box 7 is arranged at the bottom end inside the purification box 1. A slide groove 51 is opened at the bottom end inside the purification box 1. The slide groove 51 is arranged outside the first installation groove 13. A slide block 52 is arranged inside the slide groove 51. The top end of the slide block 52 is fixedly connected with the bottom end of the centrifugal screen box 7, which can limit the centrifugal screen box 7 and is also convenient for the rotation of the centrifugal screen box 7. A motor 8 is fixedly arranged at the top end of the sealing box cover 2. A first rotating rod 9 is fixedly arranged at the top end of the centrifugal screen box 7. The top end of the first rotating rod 9 passes through the top end of the sealing box cover 2 and is fixedly connected with the output shaft of the motor 8. The top end of the first rotating rod 9 and the top end of the sealing box cover 2 are rotationally connected through a bearing. A cleaning and stirring mechanism is arranged outside and inside the centrifugal screen box 7. A crushing and filtering mechanism is arranged on one side of the purification box 1. A condensation mechanism is arranged on the front side of the purification box 1.

[0034] The cleaning and stirring mechanism includes four first connecting rods 10 which are fixedly arranged at the outer end of the centrifugal mesh box 7. One heat-resistant rubber scraper 11 is fixedly arranged at one end of every two of the first connecting rods 10. The outer end of the heat-resistant rubber scraper 11 is in contact with the inner wall of the annular heat-conducting plate 6, and can scrape off the liquid on the inner wall of the annular heat-conducting plate 6. Two stirring rods 12 are fixedly arranged at the outer end of the first connecting rod 10. The stirring rods 12 are arranged between the centrifugal mesh box 7 and the heat-resistant rubber scraper 11 to facilitate stirring the liquid. A first installation groove 13 is opened at the bottom end of the purification box 1. The first installation groove 13 is arranged inside the bottom end of the centrifugal mesh box 7. A first installation plate 14 is arranged inside the first installation groove 13. The first installation plate 14 is connected to the bottom end of the purification box 1 by screws. A hollow fixed rod 15 is fixedly arranged at the top end of the first installation plate 14. Four second connecting rods 16 are fixedly arranged at the outer end of the hollow fixed rod 15. One cleaning rod 17 is fixedly arranged at one end of every two of the second connecting rods 16. A cleaning brush 18 is fixedly arranged on the outer side of the cleaning rod 17. The outer side of the cleaning brush 18 is in contact with the inner wall of the centrifugal mesh box 7, and can clean the filter residues inside the centrifugal mesh box 7 to prevent it from being blocked.

[0035] A first water pump 26 is arranged at the bottom of the crushing box 20. The liquid inlet end of the first water pump 26 is fixedly provided with a liquid inlet pipe 27. One end of the liquid inlet pipe 27 passes through the bottom end of the second installation plate 24 and is communicated with the inside of the filter mesh box 25. The liquid outlet end of the liquid inlet pipe 27 is fixedly provided with a liquid outlet pipe 28. One end of the liquid outlet pipe 28 passes through the bottom end of the first installation plate 14 and is communicated with the inside of the hollow fixed rod 15. A plurality of liquid leakage holes 19 are opened at the outer end of the hollow fixed rod 15. The liquid leakage holes 19 are arranged between the four second connecting rods 16 to facilitate pumping the dissolved liquid from the inside of the crushing box 20 into the inside of the centrifugal mesh box 7.

[0036] The implementation method is specifically as follows: Start the first water pump 26. The liquid with the substance to be measured enters the inside of the hollow fixed rod 15 through the liquid inlet pipe 27 and the liquid outlet pipe 28, and then flows into the centrifugal net box 7 through the liquid leakage holes 19. Start the motor 8. The output shaft of the motor 8 drives the first rotating rod 9 to rotate. The first rotating rod 9 drives the centrifugal net box 7 to rotate. The centrifugal net box 7 drives the first connecting rod 10 to rotate. The first connecting rod 10 drives the heat-resistant rubber scraping plate 11 and the stirring rod 12 to rotate. The rotation of the centrifugal net box 7 will drive the liquid to rotate and perform centrifugal filtration on the liquid, so that the liquid can be preliminarily purified. After the centrifugal action, the liquid will be thrown into the purification box 1. Electrify the annular heating plate 5, and the annular heating plate 5 will generate heat. The heat is transferred to the liquid inside the purification box 1 through the annular heat conducting plate 6. In this way, the water in the liquid will be evaporated into water vapor. The heat-resistant rubber scraping plate 11 will scrape off the liquid on the inner wall of the annular heat conducting plate 6, which can prevent the liquid from sticking to the inner wall of the annular heat conducting plate 6 for a long time and causing charring. The rotating stirring rod 12 will stir the liquid, which can make the heating more uniform and the water evaporate faster. When the centrifugal net box 7 is rotating centrifugally, the cleaning brush 18 inside the centrifugal net box 7 will clean the inner wall of the centrifugal net box 7. The crushed slag from the centrifugal filtration will be cleaned to the top of the first mounting plate 14. After using for a period of time, the first mounting plate 14, the hollow fixed rod 15, etc. can be removed, so that the crushed slag can be cleaned, and at the same time, the cleaning brush 18 can be cleaned and replaced. The steam evaporated inside the purification box 1 will be discharged from the air outlet pipe 36. In the present invention, the liquid dissolved from the crushed food is directly pumped into the purification box 1 for centrifugal and distillation purification, so that the whole purification process can be completed at one time. The purification process is relatively simple and convenient, reducing the workload of the testing personnel, and the purification speed is relatively fast, the purification efficiency is relatively high, and the use effect is good. This implementation method specifically solves the problems existing in the prior art that in the actual use of the liquid purification equipment for food detection, each process is carried out separately, the purification process is relatively troublesome, the purification time is relatively long, increasing the workload of the testing personnel, resulting in a relatively slow purification speed and a relatively low purification efficiency.

[0037] The present invention provides as Figure 3 , 4A rapid and efficient liquid purification device for food safety detection as shown in FIGS. 6 and 7. The crushing and filtering mechanism includes a crushing box 20, which is arranged on one side of the purification box 1. Inside the crushing box 20, there is a second rotating rod 21. The top end of the second rotating rod 21 passes through the top end of the crushing box 20 and is rotatably connected to the top end of the crushing box 20 through a bearing. A plurality of crushing knives 22 are fixedly arranged at the outer end of the second rotating rod 21. A second installation groove 23 is opened at the bottom end of the crushing box 20. Inside the second installation groove 23, there is a second installation plate 24, which is connected to the bottom end of the crushing box 20 by screws. A filter screen box 25 is fixedly arranged at the top end of the second installation plate 24, and the filter screen box 25 is arranged at the bottom of the second rotating rod 21.

[0038] A first pulley 29 is fixedly arranged at the outer end of the first rotating rod 9. The first pulley 29 is arranged between the sealing box cover 2 and the motor 8. A second pulley 30 is fixedly arranged at the top end of the second rotating rod 21. The second pulley 30 is arranged at the top of the crushing box 20. The first pulley 29 and the second pulley 30 are connected by a belt 31, which is convenient for the first rotating rod 9 to drive the second rotating rod 21 to rotate. A feeding pipe 32 is fixedly arranged at the top end of the crushing box 20. The feeding pipe 32 is arranged on the side of the second pulley 30 away from the sealing box cover 2. The bottom end of the feeding pipe 32 passes through the top end of the crushing box 20 and is communicated with the inside of the crushing box 20. A feeding groove 33 is fixedly arranged at the top end of the feeding pipe 32, which is convenient for adding food samples to be detected and solvents into the crushing box 20.

[0039] The specific implementation method is as follows: Add the food sample to be detected into the crushing box 20 from the feeding groove 33 and the feeding pipe 32, and add the corresponding organic solvent and aqueous solution into the crushing box 20. The first rotating rod 9 drives the second rotating rod 21 to rotate through the first pulley 29 and the second pulley 30. The second rotating rod 21 drives the crushing knives 22 to rotate. The crushing knives 22 crush the food samples. The crushed food will be in full contact with the solvent, so that the substance to be detected will be dissolved in the solvent. When the solution is drawn away by the liquid inlet pipe 27, the filter screen box 25 will filter the larger food fragments. By directly connecting the crushing mechanism to one side of the purification box 1, the purification device can be made more concentrated, and the sample purification and sampling work can be completed at one time, and the number of motors used can be reduced, saving resources.

[0040] The present invention provides as Figure 1 、 2, a fast and efficient liquid purification device for food safety detection as shown in Figures 8 and 9. The condensation mechanism includes a condensation box 35, which is arranged on the front side of the purification box 1. The top end of the sealed box cover 2 is fixedly provided with an air outlet pipe 36. One end of the air outlet pipe 36 passes through the top end of the sealed box cover 2 and is communicated with the inside of the purification box 1. The other end of the air outlet pipe 36 passes through the top end of the condensation box 35 and extends into the inside of the condensation box 35. The other end of the air outlet pipe 36 is fixedly provided with a condensation pipe 37. One end of the condensation pipe 37 is fixedly provided with a condensation water outlet pipe 38. One end of the condensation water outlet pipe 38 passes through the bottom end of the condensation box 35 and extends to one side of the condensation box 35. On the other side of the condensation box 35, there is a cooling water tank 39, which is arranged on the front side of the crushing box 20. The top end of the cooling water tank 39 is fixedly provided with a water adding pipe 45. One end of the water adding pipe 45 passes through the top end of the cooling water tank 39 and is communicated with the inside of the cooling water tank 39. A first valve is fixedly arranged on the water adding pipe 45, which is convenient for adding water into the cooling water tank 39. The top end of the cooling water tank 39 is fixedly provided with a second water pump 40. The water inlet end of the second water pump 40 is fixedly provided with a water inlet pipe 41. One end of the water inlet pipe 41 passes through the top end of the cooling water tank 39 and extends into the inside of the cooling water tank 39. The water outlet end of the second water pump 40 is fixedly provided with a water outlet pipe 42. One end of the water outlet pipe 42 passes through the outer bottom end of the condensation box 35 and is communicated with the inside of the condensation box 35.

[0041] A cavity 34 is formed in the wall of the crushing box 20. The outer top end of the condensation box 35 is fixedly provided with a connecting pipe 43. One end of the connecting pipe 43 is communicated with the inside of the condensation box 35. The other end of the connecting pipe 43 passes through the outer bottom end of the crushing box 20 and is communicated with the inside of the cavity 34. The outer top end of the crushing box 20 is fixedly provided with a circulating pipe 44. One end of the circulating pipe 44 is communicated with the inside of the cavity 34. The other end of the circulating pipe 44 passes through the top end of the cooling water tank 39 and is communicated with the inside of the cooling water tank 39. The circulating pipe 44 is arranged on the side of the water inlet pipe 41 away from the second water pump 40, which can heat the inside of the crushing box 20, thereby improving the dissolution efficiency and further improving the purification efficiency. The heat in the cooling water can be fully utilized, saving resources.

[0042] On one side of the purification tank 1 away from the crushing tank 20, there is a solution cooling tank 46. One end of the condensate drain pipe 38 passes through the top end of the front side of the solution cooling tank 46 and is communicated with the inside of the solution cooling tank 46. The bottom end of the purification tank 1 is fixedly provided with a solution outflow pipe 47. The solution outflow pipe 47 is arranged on one side of the first mounting plate 14. One end of the solution outflow pipe 47 is communicated with the inside of the purification tank 1. The other end of the solution outflow pipe 47 passes through one side of the solution cooling tank 46 and extends into the inside of the solution cooling tank 46. A second valve is fixedly provided on the solution outflow pipe 47. One end of the solution outflow pipe 47 is fixedly provided with a heat conduction pipe 48. The heat conduction pipe 48 is arranged inside the solution cooling tank 46. One end of the heat conduction pipe 48 is fixedly provided with a drain pipe 49. One end of the drain pipe 49 passes through the other side of the solution cooling tank 46 and extends to the outside of the solution cooling tank 46. A third valve is fixedly provided on the drain pipe 49. The rear side of the solution cooling tank 46 is fixedly provided with a condensate discharge pipe 50. One end of the condensate discharge pipe 50 is communicated with the inside of the solution cooling tank 46. A fourth valve is fixedly provided on the condensate discharge pipe 50. The condensate can be used to cool the discharged solution, saving the purification time and improving the purification efficiency.

[0043] The specific implementation method is as follows: The evaporated steam enters the inside of the condenser tube 37 through the air outlet pipe 36. Start the second water pump 40. The cooling water in the cooling water tank 39 flows into the inside of the condensation tank 35 through the water inlet pipe 41 and the water outlet pipe 42. The steam in the condenser tube 37 will exchange heat with the cooling water in the condensation tank 35 and condense into water. The temperature of the water in the condensation tank 35 will rise. The water with the increased temperature will flow into the cavity 34 through the connecting pipe 43. A part of the heat of the water inside the cavity 34 will be transferred to the inside of the crushing tank 20. In this way, the inside of the crushing tank 20 can be heated, which can improve the dissolution efficiency inside the crushing tank 20, and then improve the purification efficiency. After the water with heat diffuses the heat to the inside of the crushing tank 20, the water flows back into the cooling water tank 39 through the circulation pipe 44 for cooling. And the condensate will flow into the inside of the solution cooling tank 46 through the condensate drain pipe 38. The purified solution will flow into the inside of the heat conduction pipe 48 through the solution outflow pipe 47. The liquid exchanges heat with the condensate inside the solution cooling tank 46 inside the heat conduction pipe 48. In this way, the cooling speed of the liquid can be accelerated. The purified liquid after cooling will be discharged from the drain pipe 49, and the condensate after heat exchange will be discharged through the condensate discharge pipe 50. By condensing the steam to transfer its heat to the cooling water, and then using the heat in the cooling water to heat the inside of the crushing tank 20, the dissolution efficiency of the detected substance can be effectively improved, and then the purification efficiency can be improved. And the condensed water can cool the purified liquid, effectively accelerating the cooling speed of the purified liquid, further reducing the purification time, and then improving the purification efficiency.

[0044] Only certain exemplary embodiments of the present invention have been described above by way of illustration. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention.

Claims

1. A fast and efficient liquid purification device for food safety detection, comprising a purification box (1) and a sealed box cover (2), the sealed box cover (2) is arranged at the top of the purification box (1), and is characterized in that: On the inner wall of the purification box (1), there is a heat conduction plate groove (3) opened. On the inner wall of the heat conduction plate groove (3), there is a heating plate groove (4) opened. The heating plate groove (4) is internally connected and communicated with the heat conduction plate groove (3). An annular heating plate (5) is fixedly arranged inside the heating plate groove (4). An annular heat conduction plate (6) is fixedly arranged inside the heat conduction plate groove (3). The annular heat conduction plate (6) is arranged inside the annular heating plate (5). At the bottom end inside the purification box (1), there is a centrifugal mesh box (7). At the top end of the sealed box cover (2), there is a motor (8) fixedly arranged. At the top end of the centrifugal mesh box (7), there is a first rotating rod (9). The top end of the first rotating rod (9) passes through the top end of the sealed box cover (2) and is fixedly connected to the output shaft of the motor (8). The top end of the first rotating rod (9) is rotationally connected to the top end of the sealed box cover (2) through a bearing. A cleaning and stirring mechanism is arranged at the outer end and inside of the centrifugal mesh box (7). A crushing and filtering mechanism is arranged on one side of the purification box (1). A condensation mechanism is arranged at the front side of the purification box (1). The crushing and filtering mechanism includes a crushing box (20). The crushing box (20) is arranged on one side of the purification box (1). At the bottom of the crushing box (20), there is a first water pump (26). The liquid inlet end of the first water pump (26) is fixedly provided with a liquid inlet pipe (27). One end of the liquid inlet pipe (27) passes through the bottom end of the second mounting plate (24) and is internally connected and communicated with the inside of the filter mesh box (25). The liquid outlet end of the liquid inlet pipe (27) is fixedly provided with a liquid outlet pipe (28). On one side of the purification box (1) away from the crushing box (20), there is a solution cooling box (46). At the bottom end of the purification box (1), there is a solution outflow pipe (47) fixedly arranged. The solution outflow pipe (47) is arranged on one side of the first mounting plate (14). One end of the solution outflow pipe (47) is internally connected and communicated with the inside of the purification box (1). The other end of the solution outflow pipe (47) passes through one side of the solution cooling box (46) and extends into the inside of the solution cooling box (46).

2. The rapid and efficient liquid purification equipment for food safety detection according to claim 1, characterized in that: The cleaning and stirring mechanism includes four first connecting rods (10). The four first connecting rods (10) are fixedly arranged at the outer end of the centrifugal mesh box (7). One heat-resistant rubber scraper (11) is fixedly arranged at one end of every two first connecting rods (10). The outer end of the heat-resistant rubber scraper (11) is in contact with the inner wall of the annular heat-conducting plate (6). Two stirring rods (12) are fixedly arranged at the outer end of the first connecting rod (10). The stirring rods (12) are arranged between the centrifugal mesh box (7) and the heat-resistant rubber scraper (11). A first installation groove (13) is opened at the bottom end of the purification box (1). The first installation groove (13) is arranged inside the bottom end of the centrifugal mesh box (7). A first installation plate (14) is arranged inside the first installation groove (13). The first installation plate (14) is connected to the bottom end of the purification box (1) by screws. A hollow fixed rod (15) is fixedly arranged at the top end of the first installation plate (14). Four second connecting rods (16) are fixedly arranged at the outer end of the hollow fixed rod (15). One cleaning rod (17) is fixedly arranged at one end of every two second connecting rods (16). A cleaning brush (18) is fixedly arranged on the outer side of the cleaning rod (17). The outer side of the cleaning brush (18) is in contact with the inner wall of the centrifugal mesh box (7). A sliding groove (51) is opened at the inner bottom end of the purification box (1). The sliding groove (51) is arranged outside the first installation groove (13). A slider (52) is arranged inside the sliding groove (51). The top end of the slider (52) is fixedly connected to the bottom end of the centrifugal mesh box (7).

3. The rapid and efficient liquid purification equipment for food safety detection according to claim 2, characterized in that: A second rotating rod (21) is arranged inside the crushing box (20). The top end of the second rotating rod (21) passes through the top end of the crushing box (20) and is rotatably connected to the top end of the crushing box (20) through a bearing. A plurality of crushing knives (22) are fixedly arranged at the outer end of the second rotating rod (21). A second installation groove (23) is opened at the bottom end of the crushing box (20). A second installation plate (24) is arranged inside the second installation groove (23). The second installation plate (24) is connected to the bottom end of the crushing box (20) by screws. A filter mesh box (25) is fixedly arranged at the top end of the second installation plate (24). The filter mesh box (25) is arranged at the bottom of the second rotating rod (21).

4. The rapid and efficient liquid purification device for food safety detection according to claim 3, characterized in that: One end of the liquid outlet pipe (28) passes through the bottom end of the first installation plate (14) and is communicated with the inside of the hollow fixed rod (15). A plurality of liquid leakage holes (19) are opened at the outer end of the hollow fixed rod (15). The liquid leakage holes (19) are arranged between the four second connecting rods (16).

5. A rapid and efficient liquid purification device for food safety detection according to claim 3, characterized in that: A first pulley (29) is fixedly arranged at the outer end of the first rotating rod (9). The first pulley (29) is arranged between the sealing box cover (2) and the motor (8). A second pulley (30) is fixedly arranged at the top end of the second rotating rod (21). The second pulley (30) is arranged at the top of the crushing box (20). The first pulley (29) is connected to the second pulley (30) by a belt (31).

6. The rapid and efficient liquid purification equipment for food safety detection according to claim 5, characterized in that: A feeding pipe (32) is fixedly arranged at the top of the crushing box (20). The feeding pipe (32) is arranged on the side of the second pulley (30) away from the sealing box cover (2). The bottom end of the feeding pipe (32) passes through the top of the crushing box (20) and is communicated with the inside of the crushing box (20). A feeding trough (33) is fixedly arranged at the top end of the feeding pipe (32).

7. A rapid and efficient liquid purification device for food safety detection according to claim 3, characterized in that: The condensation mechanism includes a condensation box (35). The condensation box (35) is arranged on the front side of the purification box (1). An air outlet pipe (36) is fixedly arranged at the top of the sealing box cover (2). One end of the air outlet pipe (36) passes through the top of the sealing box cover (2) and is communicated with the inside of the purification box (1). The other end of the air outlet pipe (36) passes through the top of the condensation box (35) and extends into the inside of the condensation box (35). A condensation pipe (37) is fixedly arranged at the other end of the air outlet pipe (36). One end of the condensation pipe (37) is fixedly provided with a condensation water outlet pipe (38). One end of the condensation water outlet pipe (38) passes through the bottom end of the condensation box (35) and extends to one side of the condensation box (35). A cooling water tank (39) is arranged on the other side of the condensation box (35). The cooling water tank (39) is arranged on the front side of the crushing box (20). A second water pump (40) is fixedly arranged at the top of the cooling water tank (39). The water inlet end of the second water pump (40) is fixedly provided with a water inlet pipe (41). One end of the water inlet pipe (41) passes through the top of the cooling water tank (39) and extends into the inside of the cooling water tank (39). The water outlet end of the second water pump (40) is fixedly provided with a water outlet pipe (42). One end of the water outlet pipe (42) passes through the outer bottom end of the condensation box (35) and is communicated with the inside of the condensation box (35).

8. The rapid and efficient liquid purification equipment for food safety detection according to claim 7, characterized in that: A cavity (34) is formed in the wall of the crushing box (20). A connecting pipe (43) is fixedly arranged at the outer top end of the condensation box (35). One end of the connecting pipe (43) is communicated with the inside of the condensation box (35). The other end of the connecting pipe (43) passes through the outer bottom end of the crushing box (20) and is communicated with the inside of the cavity (34). A circulating pipe (44) is fixedly arranged at the outer top end of the crushing box (20). One end of the circulating pipe (44) is communicated with the inside of the cavity (34). The other end of the circulating pipe (44) passes through the top of the cooling water tank (39) and is communicated with the inside of the cooling water tank (39). The circulating pipe (44) is arranged on the side of the water inlet pipe (41) away from the second water pump (40).

9. The rapid and efficient liquid purification device for food safety detection according to claim 8, wherein: A water adding pipe (45) is fixedly arranged at the top of the cooling water tank (39). The water adding pipe (45) is arranged on the side of the circulating pipe (44) away from the water inlet pipe (41). One end of the water adding pipe (45) passes through the top of the cooling water tank (39) and is communicated with the inside of the cooling water tank (39). A first valve is fixedly arranged on the water adding pipe (45).

10. A rapid and efficient liquid purification device for food safety detection according to claim 7, characterized in that: One end of the condensation water outlet pipe (38) passes through the top end of the front side of the solution cooling tank (46) and is communicated with the inside of the solution cooling tank (46). A second valve is fixedly arranged on the solution outlet pipe (47). One end of the solution outlet pipe (47) is fixedly provided with a heat conduction pipe (48). The heat conduction pipe (48) is arranged inside the solution cooling tank (46). One end of the heat conduction pipe (48) is fixedly provided with a drain pipe (49). One end of the drain pipe (49) passes through the other side of the solution cooling tank (46) and extends to the outside of the solution cooling tank (46). A third valve is fixedly arranged on the drain pipe (49). A condensation water discharge pipe (50) is fixedly arranged at the rear side of the solution cooling tank (46). One end of the condensation water discharge pipe (50) is communicated with the inside of the solution cooling tank (46). A fourth valve is fixedly arranged on the condensation water discharge pipe (50).

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