Sample preparation and drying device for viscous and wet mineral products and use method of sample preparation and drying device

Abstract

The invention relates to the technical field of mineral product detection, and provides a sticky wet type mineral product sample preparation drying device and a using method thereof.The sticky wet type mineral product sample preparation drying device comprises an outer barrel, an inner barrel fixed in the outer barrel, a gland covering the inner barrel in a sealing mode and a bottom frame fixed to the bottom of the outer barrel, and an interlayer is fixed between the outer barrel and the inner barrel; when the driving unit rotates forwards to work, the sticky wet type mineral products entering from the feeding port are continuously conveyed upwards from the interior of the cylindrical barrel through the first auger on the shaft rod and are dispersed in the inner barrel through the material dispersing port, and in the process, the sticky wet type mineral products are dispersed in the inner barrel through the first gear on the shaft rod and the second gear at the bottom of the transmission shaft under meshing of the first gear on the shaft rod and the second gear at the bottom of the transmission shaft. Compared with the prior art, the mineral products on the bottom layer of the inner barrel can be carried to the high layer, rapid drying is achieved in cooperation with the stirring rod and a hot air unit, and the mineral products in the inner barrel can be conveyed to the high layer through the stirring rod and the hot air unit. The drying efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mineral product detection, and in particular to a sample preparation and drying device for sticky and wet mineral products and a use method thereof. Background Art

[0002] The current sample preparation and analysis method for low-grade, high-humidity, and high-viscosity mineral products still uses the traditional model, which is to mix and reduce the samples after they are collected, and obtain the analysis samples through static drying. In daily work, we have found that the current sample preparation process has the following technical defects:

[0003] 1. When using a drying box for static drying, the internal samples always remain stationary, and the drying process often requires manual intervention.

[0004] 2. The drying box relies on heat conduction for heating, which has low heating efficiency and makes it difficult to carry out effective heat exchange in a relatively closed environment.

[0005] 3. In order to improve the drying efficiency, the only way is to increase the drying air volume or increase the temperature, which will inevitably increase the energy consumption of the blast and waste energy.

[0006] 4. The drying process of the sample is slow, and manual stirring and turning of the material are required to accelerate the drying process, which not only wastes manpower but also easily causes safety accidents.

[0007] 5. After drying, the sample tends to form coagulated soil blocks with high hardness and large particle size. It cannot be directly put into the crusher and still needs to be broken manually.

[0008] After searching, the patent technology with publication number CN110018030A discloses a method for using a sample preparation and drying device for sticky and wet mineral products, and the steps are as follows: start the cycloidal pin reducer, open the barrel cover and add the sticky and wet mineral product sample to be tested into the stainless steel inner cylinder; close the barrel cover, start the dehumidifying fan, the heating fan and the heater, the spiral auger disk pushes the sample to the stirring rod for stirring, the heating fan sends hot air to the sample, the dehumidifying fan extracts the moisture in the stainless steel inner cylinder, and blows it into the sample in the stainless steel inner cylinder through the heater for drying and stirring; start the motor, turn off the heater, start the cycloidal pin reducer in reverse, and the spiral auger disk pushes the mixed material to the square discharge port I position; turn the hand wheel, the plug plate is pulled out from the plug plate port, and the sample is discharged into the discharge pipe of the auger assembly; the motor drives the auger blades with shafts to roughly crush the incoming sample and transmit it to the feed port of the crusher in the next process; the sample preparation and drying device for sticky and wet mineral products achieves an integrated structure of stirring, drying and crushing and a fully automated implementation method.

[0009] However, the prior art still has the following problems: the above-mentioned sticky mineral product sample preparation and drying device is pushed upward by a single spiral auger disk. Due to the limited pushing height, the sample can only reach the stirring height position of the lowest stirring rod, which makes the turning effect general and affects the contact surface with the hot air, making the drying efficiency relatively low. Summary of the invention

[0010] The invention provides a sample preparation and drying device for sticky and wet mineral products and a use method thereof, which solves the problem in the prior art that the material turning effect is insufficient and affects the drying efficiency.

[0011] The technical scheme of the present invention is as follows: a device for preparing and drying samples of viscous and wet mineral products, comprising an outer barrel, an inner barrel fixed in the outer barrel, a pressure cover sealed on the inner barrel, and a bottom frame fixed to the bottom of the outer barrel, a partition is fixed between the outer barrel and the inner barrel, a spirally distributed heat conducting plate is fixedly embedded on the partition, the inner side of the heat conducting plate contacts the outer wall of the inner barrel, the outer side of the heat conducting plate contacts the inner wall of the outer barrel, the heat conducting plate separates the outer barrel from the inner barrel and the partition cavity to form an independent condensation channel and preheating air duct inside and outside, the top of the inner barrel is provided with an air outlet for connecting the condensation channel with the inner cavity of the inner barrel, one side of the bottom of the outer barrel is provided with an exhaust hole leading to the bottom cavity of the condensation channel, and the top of the preheating air duct is open;

[0012] A support assembly is fixed in the outer barrel, a rotatable cylindrical barrel is arranged at the center of the support assembly, a stirring rod for stirring the sticky and wet mineral products in the inner barrel is arranged on the outer side of the cylindrical barrel, a conducting assembly for conveying the products at the bottom of the inner barrel to the top is arranged on the inner side of the cylindrical barrel, a driving unit capable of driving the conducting assembly to rotate forward and reverse is fixed on the bottom frame of the outer barrel, a transmission member for driving the cylindrical barrel to rotate synchronously under the transmission action of the conducting assembly is arranged on the support assembly, and a conical barrel is fixed at the bottom of the outer barrel to cooperate with the conducting assembly to deliver the dried products;

[0013] The outer side of the outer barrel is provided with a hot air unit capable of heating the air in the preheating air duct and then sending it into the inner barrel, and the bottom of the outer barrel is fixed with a guide pipe capable of guiding the water condensed in the condensation channel to the conical cylinder.

[0014] Preferably, the support assembly includes a sleeve cover, the top of the cylindrical barrel is rotatably connected to the sleeve cover, the bottom of the cylindrical barrel is rotatably connected to the outer barrel, and a plurality of support rods radially fixed to the inner wall of the inner barrel are fixed to the outer side of the sleeve cover.

[0015] Preferably, the cylindrical barrel is provided with a feed port at the bottom cavity of the inner barrel, the top of the cylindrical barrel is provided with a bulk material opening located above the stirring rod, a partition is fixed in the cylindrical barrel above the bulk material opening, and an annular tooth surface is provided on the inner wall of the cylindrical barrel above the partition;

[0016] The diameter of the conical cylinder gradually decreases from top to bottom. A feed pipe communicating with the inner cavity of the conical cylinder is fixed on one side of the bottom of the conical cylinder, and a feed plug is filled at the outer port of the feed pipe.

[0017] Preferably, the conduction component includes a shaft rod, which is fixed to the output end of the driving unit, a first auger is fixed to the position of the shaft rod located in the cylindrical cylinder, a second auger is fixed to the position of the shaft rod located in the conical cylinder, a first gear is fixed to the position of the shaft rod located above the partition, the top of the shaft rod penetrates upward through the cylindrical cylinder and the outside of the sleeve cover and is fixed with a water receiving bucket, a hollow section connected to the water receiving bucket is provided on the top of the shaft rod, and a water outlet matching the height of the feed port is provided at the bottom of the hollow section.

[0018] Preferably, the first auger is cylindrical and matches the shape of the cylindrical barrel, and the second auger is conical and matches the shape of the conical barrel.

[0019] Preferably, the transmission member comprises a transmission shaft, the transmission shaft is rotatably connected to the sleeve cover, and a second gear meshing with the first gear and the annular tooth surface is fixed to the bottom of the transmission shaft.

[0020] Preferably, the hot air unit includes a fixing plate, which is fixed to the outside of the outer barrel, and a blower is fixed on the fixing plate. An air inlet pipe connected to the bottom cavity of the preheating air duct is fixed at the air inlet of the blower, and an air blowing pipe connected to the bottom cavity of the inner barrel is fixed at the air outlet of the blower, and a heater is arranged on the air blowing pipe.

[0021] Preferably, the flow guide pipe is provided with a shut-off valve capable of opening and closing the flow in the flow guide pipe.

[0022] Preferably, a water inlet pipe leading to the water receiving bucket is fixed at the center position of the gland, and a sealing plug is filled on the top of the water inlet pipe.

[0023] Based on the above-mentioned drying device for sample preparation of sticky and wet mineral products, the present invention also proposes a method for using the drying device, comprising the following steps:

[0024] Step 1: Add materials, open the pressure cover, and place the sticky and wet mineral products in the inner barrel;

[0025] Step 2: stirring. Start the driving unit to work in the forward direction, drive the transmission component to continuously move the sticky and wet mineral products at the bottom of the inner barrel to the top and disperse them in the inner barrel. In this process, the cylindrical barrel is driven to rotate synchronously by the transmission action of the transmission part, and then the stirring rod outside the cylindrical barrel stirs the mineral products in the inner barrel.

[0026] Step 3: heating, start the hot air unit to deliver hot air into the inner barrel, cooperate with the stirring action of the stirring rod to quickly evaporate the water in the mineral product, and the evaporated water vapor enters the condensation channel through the air outlet along with the air flow. Since a part of the heat conduction plate on the interlayer is in the condensation channel and can absorb heat, and the other part of the heat conduction plate is in the preheating air duct and can dissipate heat, the hot steam in the condensation channel is higher than the temperature of the heat conduction plate. After precooling, the water vapor condenses into droplets and spirals downward. The condensed air is discharged through the exhaust hole in the bottom cavity of the condensation channel, and the air entering through the top of the preheating air duct absorbs the heat emitted by the heat conduction plate to achieve preheating, and is heated by the hot air unit and then delivered to the inner barrel again;

[0027] Step 4: discharging. Turn off the hot air unit and start the driving unit to reverse. Drive the conduction component to guide the mineral products dried at the bottom of the inner barrel to the conical cylinder, where they are crushed and shrunk and then discharged.

[0028] The beneficial effects of the present invention are:

[0029] 1. When the drive unit of the present invention is working in forward rotation, the first auger on the shaft continuously transports the sticky and wet mineral products coming in from the feed port upward from the inside of the cylindrical barrel, and disperses them in the inner barrel through the bulk opening. In this process, the first gear on the shaft and the second gear at the bottom of the transmission shaft are meshed, and the second gear and the annular tooth surface are meshed to drive the cylindrical barrel to rotate synchronously, and then the stirring rod outside the cylindrical barrel stirs the mineral products in the inner barrel. Compared with the prior art, the present invention can realize the transportation of mineral products from the bottom layer of the inner barrel to the upper layer, and cooperate with the stirring rod and the hot air unit to realize rapid drying, thereby improving the drying efficiency;

[0030] 2. In the present invention, the evaporated water vapor enters the condensation channel through the air outlet along with the air flow. Since a part of the heat conduction plate on the interlayer is in the condensation channel and can absorb heat, and the other part of the heat conduction plate is in the preheating air duct and can dissipate heat, the hot steam in the condensation channel is higher than the temperature of the heat conduction plate. After precooling, the water vapor condenses into droplets and spirals downward. The condensed air is discharged through the exhaust hole in the bottom cavity of the condensation channel, and the air entering through the top of the preheating air duct absorbs the heat dissipated by the heat conduction plate to achieve preheating, and is heated by the hot air unit and then sent to the inner barrel again. Compared with the prior art, the present invention can make full use of the heated heat to heat the incoming air, realize waste heat recovery, and save energy consumption;

[0031] 3. In the present invention, the unit is driven to work in reverse, and the first auger on the shaft guides the dried mineral products coming from the feed port to the conical cylinder, and is transported downward by the second auger on the conical cylinder. Due to the conical reduction design of the conical cylinder and the second auger, the dried mineral products can be further crushed and reduced, and the processed mineral products can be discharged by opening the plug. Compared with the prior art, the integrated spiral lifting and crushing and reducing design of the present invention during material discharge can save maintenance costs, reduce the size of the equipment, and is more flexible and convenient.

[0032] 4. The present invention can open the seal on the water inlet pipe and add cleaning water. The cleaning water enters the hollow cavity of the top of the shaft through the focusing effect of the water receiving bucket and enters the cylindrical barrel through the water outlet. A part of the water in the cylindrical barrel is discharged into the inner barrel through the bulk port. The inner barrel is cleaned under the stirring action of the stirring rod. Another part of the water in the cylindrical barrel continues to flow downward through the cylindrical barrel to clean the inner wall of the cylindrical barrel and the first auger. The cleaned water in the inner barrel and the cylindrical barrel enters the conical barrel. In addition, the guide pipe can be opened through the shut-off valve, and a small amount of water condensed from the condensation channel is passed into the conical barrel through the guide pipe to clean the inner wall of the conical barrel and the second auger. Compared with the prior art, the present invention can realize the self-cleaning function of the barrel and each component without opening the cover, and can make full use of the water resources of evaporation and condensation, reduce resource waste, and improve cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Figure 1 This is a partial cross-sectional structural diagram of a sample preparation and drying device for sticky and wet mineral products proposed by the present invention;

[0035] Figure 2 This is a partial cross-sectional front view of the structure of a device for preparing and drying samples of sticky and wet mineral products proposed by the present invention;

[0036] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the cylindrical tube and the conical tube proposed by the present invention;

[0037] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0038] Figure 5 for Figure 3 The enlarged structural diagram at B in the middle;

[0039] Figure 6 This is a schematic diagram of the structure of the conduction component proposed by the present invention;

[0040] Figure 7 This is a schematic diagram of the structure of the hot air unit proposed by the present invention;

[0041] In the figure: 1, outer barrel; 2, inner barrel; 21, air outlet; 22, exhaust hole; 3, partition; 4, heat conduction plate; 5, hot air unit; 51, blower; 52, air inlet pipe; 53, air blowing pipe; 54, heater; 55, fixing plate; 6, cylindrical barrel; 61, feed inlet; 62, bulk material outlet; 63, annular tooth surface; 64, partition; 7, stirring rod; 8, support assembly; 81, cover; 82, support rod; 9. Conduction component; 91. Shaft; 92. First auger; 93. Second auger; 94. First gear; 95. Water receiving bucket; 96. Water outlet; 10. Driving unit; 11. Transmission member; 111. Transmission shaft; 112. Second gear; 12. Conical cylinder; 121. Feed pipe; 122. Feed plug; 13. Guide pipe; 131. Shut-off valve; 14. Pressure cover; 141. Water inlet pipe; 142. Sealing plug. DETAILED DESCRIPTION

[0042] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] See also Figure 1 and Figure 2The present invention provides a technical solution: a device for preparing and drying samples of viscous and wet mineral products, comprising an outer barrel 1, an inner barrel 2 fixed in the outer barrel 1, a pressure cover 14 sealed on the inner barrel 2, and a bottom frame fixed to the bottom of the outer barrel 1, a partition 3 is fixed between the outer barrel 1 and the inner barrel 2, a spirally distributed heat conducting plate 4 is fixedly embedded on the partition 3, the inner side of the heat conducting plate 4 contacts the outer wall of the inner barrel 2, the outer side of the heat conducting plate 4 contacts the inner wall of the outer barrel 1, the heat conducting plate 4 separates the outer barrel 1 from the inner barrel 2 and the partition 3 to form independent condensation channels and preheating air ducts inside and outside, an air outlet 21 is provided on the top of the inner barrel 2 to connect the condensation channel with the inner cavity of the inner barrel 2, an interception net is arranged on the air outlet 21 to prevent product leakage, and a bottom side of the outer barrel 1 is provided with a channel leading to the condensation channel The exhaust holes 22 of the bottom cavity of the duct are inclined upward to prevent water from flowing out. The top of the preheating air duct is open, and a dustproof net is set at the opening. The evaporated water vapor enters the condensation channel through the air outlet 21 with the action of the air flow. Since a part of the heat conducting plate 4 on the interlayer 3 is in the condensation channel, it can absorb heat, and the other part of the heat conducting plate 4 is in the preheating air duct to dissipate heat. The hot steam in the condensation channel is higher than the temperature of the heat conducting plate 4. After precooling, the water vapor condenses into droplets and spirals downward. The condensed air is discharged through the exhaust holes 22 of the bottom cavity of the condensation channel, and the air entering through the top of the preheating air duct absorbs the heat dissipated by the heat conducting plate 4 to achieve preheating, and is heated by the hot air unit 5 and then sent to the inner barrel 2 again.

[0044] See also Figure 3 A support assembly 8 is fixed inside the outer barrel 1, and the support assembly 8 includes a cover 81. The top of the cylindrical barrel 6 is rotatably connected to the cover 81, and the bottom of the cylindrical barrel 6 is rotatably connected to the outer barrel 1. A plurality of support rods 82 radially fixed to the inner wall of the inner barrel 2 are fixed on the outer side of the cover 81 for rotatably supporting the cylindrical barrel 6.

[0045] See also Figure 3 , Figure 4 and Figure 5 A rotatable cylindrical barrel 6 is arranged at the center position of the support assembly 8, a feed port 61 is provided at the bottom cavity of the inner barrel 2, a bulk material port 62 is provided at the top of the cylindrical barrel 6 and is located above the stirring rod 7, a partition plate 64 is fixed in the cylindrical barrel 6 above the bulk material port 62, and an annular tooth surface 63 is provided on the inner wall of the cylindrical barrel 6 above the partition plate 64.

[0046] See also Figure 3 , Figure 4 , Figure 5 and Figure 6The outer side of the cylindrical barrel 6 is provided with a stirring rod 7 for stirring the sticky and wet mineral products in the inner barrel 2. The inner side of the cylindrical barrel 6 is provided with a conducting component 9 for transporting the product at the bottom of the inner cavity of the inner barrel 2 to the top. The conducting component 9 includes a shaft 91, and the shaft 91 is fixed to the output end of the driving unit 10. The shaft 91 is located in the cylindrical barrel 6 and a first auger 92 is fixed thereto. The shaft 91 is located in the conical barrel 12 and a second auger 93 is fixed thereto. A first gear 94 is fixed to the portion above the partition 64, the top of the shaft 91 passes upward through the cylindrical tube 6 and the outside of the cover 81 and is fixed with a water receiving bucket 95, the top of the shaft 91 is provided with a hollow section communicated with the water receiving bucket 95, and the bottom of the hollow section is provided with a water outlet 96 that matches the height of the feed port 61, when the shaft 91 rotates forward, the first auger 92 on the shaft 91 continuously transports the sticky and wet mineral products coming in from the feed port 61 upward from the inside of the cylindrical tube 6.

[0047] See also Figure 2 and Figure 4 A driving unit 10 capable of driving the transmission component 9 to rotate forward and reverse is fixed on the bottom frame of the outer barrel 1. A transmission member 11 is provided on the support component 8 to drive the cylindrical barrel 6 to rotate synchronously under the transmission action of the transmission component 9. The transmission member 11 includes a transmission shaft 111, which is rotatably connected to the sleeve cover 81. A second gear 112 meshing with the first gear 94 and the annular tooth surface 63 is fixed to the bottom of the transmission shaft 111. When the first auger 92 on the shaft 91 continuously transports the sticky and wet mineral products coming in from the feed port 61 from the inside of the cylindrical barrel 6 upward, it can be dispersed in the inner barrel 2 through the bulk material port 62. In this process, the cylindrical barrel 6 can be driven to rotate synchronously by the meshing of the first gear 94 on the shaft 91 and the second gear 112 at the bottom of the transmission shaft 111, and the meshing of the second gear 112 and the annular tooth surface 63, and then the stirring rod 7 on the outside of the cylindrical barrel 6 stirs the mineral products in the inner barrel 2.

[0048] See also Figure 1 and Figure 2 A conical cylinder 12 is fixed at the bottom of the outer barrel 1 to cooperate with the conduction component 9 to deliver the dried product. The diameter of the conical cylinder 12 gradually decreases from top to bottom. A discharge pipe 121 connected to the inner cavity of the conical cylinder 12 is fixed on one side of the bottom of the conical cylinder 12. The outer port of the discharge pipe 121 is filled with a plug 122. The driving unit 10 reverses to work, and the first auger 92 on the shaft 91 guides the dried mineral products coming in from the feed inlet 61 to the conical cylinder 12, and transports them downward through the second auger 93 on the conical cylinder 12.

[0049] See also Figure 1 and Figure 2 , Figure 7A hot air unit 5 is arranged on the outside of the outer barrel 1, which can heat the air in the preheating air duct and then send it into the inner barrel 2. The hot air unit 5 includes a fixing plate 55, which is fixed to the outside of the outer barrel 1, and a blower 51 is fixed on the fixing plate 55. An air inlet pipe 52 communicating with the bottom cavity of the preheating air duct is fixed at the air inlet of the blower 51, and an air blowing pipe 53 communicating with the bottom cavity of the inner barrel 2 is fixed at the air outlet of the blower 51. A heater 54 is arranged on the air blowing pipe 53. While the mineral product is stirred, the blower 51 works, and the air in the preheating air duct is sucked in by the air inlet pipe 52, and is heated by the heater 54 on the air blowing pipe 53 and then sent to the bottom cavity of the inner barrel 2, thereby cooperating with the stirring action of the stirring rod 7 to quickly evaporate the moisture in the mineral product.

[0050] See also Figure 1 and Figure 2 A guide tube 13 is fixed at the bottom of the outer barrel 1 and can guide the water condensed in the condensation channel to the conical cylinder 12. A shut-off valve 131 is provided on the guide tube 13 and can open and close the flow in the guide tube 13. When cleaning, the guide tube 13 can be opened through the shut-off valve 131, and a small amount of water condensed from the condensation channel is passed into the conical cylinder 12 through the guide tube 13 to clean the inner wall of the conical cylinder 12 and the second auger 93.

[0051] See also Figure 1 and Figure 2 A water inlet pipe 141 leading to the water receiving bucket 95 is fixed at the center position of the pressure cover 14, and a sealing plug 142 is filled on the top of the water inlet pipe 141. The sealing plug 142 on the water inlet pipe 141 can be opened and cleaning water can be added. The cleaning water enters the hollow section cavity at the top of the shaft 91 through the converging effect of the water receiving bucket 95 and enters the cylindrical tube 6 through the water outlet 96.

[0052] It should be noted that the first auger 92 is cylindrical and matches the shape of the cylindrical tube 6 , and the second auger 93 is conical and matches the shape of the conical tube 12 .

[0053] Based on the above embodiment, the present invention further proposes a method for using a drying device, comprising the following steps:

[0054] Step 1: Add materials, open the pressure cover 14, and place the sticky and wet mineral products in the inner barrel 2;

[0055] Step 2: stirring. The driving unit 10 is turned on to work in the forward direction, and the transmission component 9 is driven to continuously carry the sticky and wet mineral products at the bottom of the inner barrel 2 to the top and disperse them in the inner barrel 2. In this process, the cylindrical barrel 6 is driven to rotate synchronously by the transmission action of the transmission member 11, and then the stirring rod 7 on the outside of the cylindrical barrel 6 stirs the mineral products in the inner barrel 2.

[0056] Step three, heating, start the hot air unit 5 to deliver hot air into the inner barrel 2, cooperate with the stirring action of the stirring rod 7 to quickly evaporate the water in the mineral product, and the evaporated water vapor enters the condensation channel through the air outlet 21 with the action of the air flow. Since a part of the heat conducting plate 4 on the interlayer 3 is in the condensation channel and can absorb heat, and the other part of the heat conducting plate 4 is in the preheating air duct and can dissipate heat, the hot steam in the condensation channel is higher than the temperature of the heat conducting plate 4. After precooling, the water vapor condenses into droplets and spirals downward. The condensed air is discharged through the exhaust hole 22 in the bottom cavity of the condensation channel, and the air entering through the top of the preheating air duct absorbs the heat emitted by the heat conducting plate 4 to achieve preheating, and is heated by the hot air unit 5 and then delivered to the inner barrel 2 again;

[0057] Step 4, discharging, close the hot air unit 5 and start the driving unit 10 to reverse the operation, drive the conduction component 9 to guide the mineral products dried at the bottom of the inner barrel 2 to the conical cylinder 12, and then crush and shrink them in the conical cylinder 12 and discharge them.

[0058] The detailed working principle and use process of the present invention are as follows: when the driving unit 10 is working in the forward direction, the first auger 92 on the shaft 91 continuously transports the sticky and wet mineral products coming from the feed port 61 upward from the inside of the cylindrical barrel 6, and disperses them into the inner barrel 2 through the bulk opening 62. In this process, the first gear 94 on the shaft 91 is meshed with the second gear 112 at the bottom of the transmission shaft 111, and the second gear 112 is meshed with the annular tooth surface 63, which can drive the cylindrical barrel 6 to rotate synchronously, and then the stirring rod 7 on the outside of the cylindrical barrel 6 stirs the mineral products in the inner barrel 2. At the same time, the blower 51 works, and the air in the preheating duct is sucked in by the air inlet pipe 52, and is heated by the heater 54 on the air blowing pipe 53 and sent into the bottom cavity of the inner barrel 2, and then cooperates with the stirring action of the stirring rod 7 to quickly evaporate the water in the mineral products;

[0059] The evaporated water vapor enters the condensation channel through the air outlet 21 along with the air flow. Since a part of the heat conducting plate 4 on the interlayer 3 is in the condensation channel and can absorb heat, and the other part of the heat conducting plate 4 is in the preheating air duct and can dissipate heat, the hot steam in the condensation channel is higher in temperature than the heat conducting plate 4. After precooling, the water vapor condenses into droplets and spirals downward. The condensed air is discharged through the exhaust hole 22 in the bottom cavity of the condensation channel, and the air entering through the top of the preheating air duct absorbs the heat dissipated by the heat conducting plate 4 to achieve preheating, and is heated by the hot air unit 5 and then sent to the inner barrel 2 again;

[0060] After drying, the hot air unit 5 is turned off and the driving unit 10 is turned on to work in reverse. The first auger 92 on the shaft 91 guides the dried mineral products coming from the feed port 61 to the conical cylinder 12 and is transported downward by the second auger 93 on the conical cylinder 12. Due to the conical reduction design of the conical cylinder 12 and the second auger 93, the dried mineral products can be further crushed and reduced. The processed mineral products can be discharged by opening the plug 122.

[0061] When cleaning is needed, the plug 142 on the water inlet pipe 141 can be opened and cleaning water can be added. The cleaning water enters the hollow cavity at the top of the shaft 91 through the focusing effect of the water receiving bucket 95 and enters the cylindrical barrel 6 through the water outlet 96. A part of the water in the cylindrical barrel 6 is discharged into the inner barrel 2 through the bulk port 62. Under the stirring action of the stirring rod 7, the inner barrel 2 is cleaned. Another part of the water in the cylindrical barrel 6 continues to flow downward through the cylindrical barrel 6 to clean the inner wall of the cylindrical barrel 6 and the first auger 92. The cleaned water in the inner barrel 2 and the cylindrical barrel 6 enters the conical barrel 12. In addition, the guide pipe 13 can be opened through the shut-off valve 131, and a small amount of water condensed from the condensation channel is passed into the conical barrel 12 through the guide pipe 13 to clean the inner wall of the conical barrel 12 and the second auger 93.

[0062] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for preparing and drying samples of viscous and wet mineral products, comprising an outer barrel (1), an inner barrel (2) fixed in the outer barrel (1), a gland (14) sealed on the inner barrel (2), and a bottom frame fixed to the bottom of the outer barrel (1), characterized in that: A partition (3) is fixed between the outer barrel (1) and the inner barrel (2), a spirally distributed heat conducting plate (4) is fixedly embedded on the partition (3), the inner side surface of the heat conducting plate (4) contacts the outer wall of the inner barrel (2), and the outer side surface of the heat conducting plate (4) contacts the inner wall of the outer barrel (1), the heat conducting plate (4) separates the outer barrel (1), the inner barrel (2) and the partition (3) into independent condensation channels and preheating air ducts, the top of the inner barrel (2) is provided with an air outlet (21) for connecting the condensation channel with the inner cavity of the inner barrel (2), and one side of the bottom of the outer barrel (1) is provided with an exhaust hole (22) leading to the bottom cavity of the condensation channel, and the top of the preheating air duct is open; A support assembly (8) is fixed inside the outer barrel (1), a rotatable cylindrical barrel (6) is arranged at the center of the support assembly (8), a stirring rod (7) for stirring the viscous and wet mineral product in the inner barrel (2) is arranged on the outer side of the cylindrical barrel (6), a conducting assembly (9) for transporting the product at the bottom of the inner chamber of the inner barrel (2) to the top is arranged on the inner side of the cylindrical barrel (6), a driving unit (10) capable of driving the conducting assembly (9) to rotate forward and reverse is fixed on the bottom frame of the outer barrel (1), a transmission member (11) for driving the cylindrical barrel (6) to rotate synchronously with the transmission action of the conducting assembly (9) is arranged on the support assembly (8), and a conical barrel (12) for cooperating with the conducting assembly (9) to deliver the dried product is fixed at the bottom of the outer barrel (1); The outer side of the outer barrel (1) is provided with a hot air unit (5) capable of heating the air in the preheating air duct and then sending the air into the inner barrel (2), and the bottom of the outer barrel (1) is fixed with a guide pipe (13) capable of guiding the water condensed in the condensation channel to the conical cylinder (12).

2. The device for preparing and drying samples of viscous and wet mineral products according to claim 1, characterized in that: The support assembly (8) comprises a sleeve cover (81), the top of the cylindrical barrel (6) is rotatably connected to the sleeve cover (81), the bottom of the cylindrical barrel (6) is rotatably connected to the outer barrel (1), and a plurality of support rods (82) radially fixed to the inner wall of the inner barrel (2) are fixed on the outer side of the sleeve cover (81).

3. The device for preparing and drying samples of viscous and wet mineral products according to claim 2, characterized in that: The cylindrical barrel (6) is provided with a feed port (61) at the bottom cavity of the inner barrel (2), and a bulk material opening (62) located above the stirring rod (7) is provided at the top of the cylindrical barrel (6). A partition (64) is fixed inside the cylindrical barrel (6) above the bulk material opening (62), and an annular tooth surface (63) is provided on the inner wall of the cylindrical barrel (6) above the partition (64); The diameter of the conical cylinder (12) gradually decreases from top to bottom, and a feed pipe (121) communicating with the inner cavity of the conical cylinder (12) is fixed to one side of the bottom of the conical cylinder (12), and an outer port of the feed pipe (121) is filled with a material plug (122).

4. The device for preparing and drying samples of viscous and wet mineral products according to claim 3, characterized in that: The conduction component (9) comprises a shaft (91), wherein the shaft (91) is fixed to the output end of the driving unit (10), wherein the shaft (91) is located in the cylindrical tube (6) and a first auger (92) is fixed thereto, wherein the shaft (91) is located in the conical tube (12) and a second auger (93) is fixed thereto, wherein the shaft (91) is located above the partition (64) and a first gear (94) is fixed thereto, wherein the top of the shaft (91) passes through the cylindrical tube (6) and the outside of the sleeve (81) and is fixed thereto a water receiving bucket (95), wherein the top of the shaft (91) is provided with a hollow section which is in communication with the water receiving bucket (95), and wherein the bottom of the hollow section is provided with a water outlet (96) which matches the height of the feed port (61).

5. The device for preparing and drying samples of viscous and wet mineral products according to claim 4, characterized in that: The first auger (92) is cylindrical and matches the shape of the cylindrical barrel (6), and the second auger (93) is conical and matches the shape of the conical barrel (12).

6. The device for preparing and drying samples of viscous and wet mineral products according to claim 4, characterized in that: The transmission member (11) comprises a transmission shaft (111), the transmission shaft (111) being rotatably connected to the sleeve cover (81), and a second gear (112) meshing with the first gear (94) and the annular tooth surface (63) being fixed at the bottom of the transmission shaft (111).

7. The device for preparing and drying samples of viscous and wet mineral products according to claim 1, characterized in that: The hot air unit (5) comprises a fixing plate (55), the fixing plate (55) being fixed to the outside of the outer barrel (1), a blower (51) being fixed on the fixing plate (55), an air inlet pipe (52) being fixed at an air inlet of the blower (51) and being communicated with a bottom cavity of the preheating air duct, an air blowing pipe (53) being fixed at an air outlet of the blower (51) and being communicated with a bottom cavity of the inner barrel (2), and a heater (54) being arranged on the air blowing pipe (53).

8. The device for preparing and drying samples of viscous and wet mineral products according to claim 1, characterized in that: The flow guide pipe (13) is provided with a shut-off valve (131) capable of opening and closing the flow in the flow guide pipe (13).

9. The device for preparing and drying samples of viscous and wet mineral products according to claim 4, characterized in that: A water inlet pipe (141) leading to the water receiving bucket (95) is fixed at the center of the gland (14), and a sealing plug (142) is filled at the top of the water inlet pipe (141).

10. A method for using a drying device, according to claim 1, a drying device for sample preparation of viscous and wet mineral products, characterized in that: The following steps are involved: Step 1: Add materials, open the pressure cover (14), and place the sticky and wet mineral product in the inner barrel (2); Step 2: stirring. The driving unit (10) is turned on to work in forward rotation, and the transmission component (9) is driven to continuously move the sticky and wet mineral products at the bottom of the inner barrel (2) to the top and disperse them in the inner barrel (2). During this process, the cylindrical barrel (6) is driven to rotate synchronously by the transmission action of the transmission member (11), and then the stirring rod (7) outside the cylindrical barrel (6) stirs the mineral products in the inner barrel (2); Step three, heating, start the hot air unit (5) to deliver hot air into the inner barrel (2), and cooperate with the stirring action of the stirring rod (7) to quickly evaporate the water in the mineral product. The evaporated water vapor enters the condensation channel through the air outlet (21) along with the action of the air flow. Since a part of the heat conducting plate (4) on the interlayer (3) is in the condensation channel and can absorb heat, and the other part of the heat conducting plate (4) is in the preheating air duct and can dissipate heat, the hot steam in the condensation channel is higher than the temperature of the heat conducting plate (4). After precooling, the water vapor condenses into droplets and spirals downward. The condensed air is discharged through the exhaust hole (22) in the bottom cavity of the condensation channel, and the air entering through the top of the preheating air duct absorbs the heat dissipated by the heat conducting plate (4) to achieve preheating, and is heated by the hot air unit (5) and then delivered to the inner barrel (2) again; Step 4, discharging, closing the hot air unit (5) and starting the driving unit (10) to work in reverse, driving the conduction component (9) to guide the mineral products dried at the bottom of the inner barrel (2) to the conical cylinder (12), and then crushed and shrunk in the conical cylinder (12) and discharged.

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