A sample preparation drying device for sticky wet mineral products and a method of using the same

Abstract

The present application relates to the technical field of mineral product detection, and proposes a sampling and drying device for sticky and wet mineral products and a use method thereof, which comprises an outer barrel, an inner barrel fixed in the outer barrel, a gland cover sealed on the inner barrel, and a chassis fixed at the bottom of the outer barrel, and a partition is fixed between the outer barrel and the inner barrel; when the driving unit is working in the forward rotation, the first auger on the shaft rod continuously carries the sticky and wet mineral products coming from the feeding port into the cylindrical barrel upwards, and the mineral products are dispersed in the inner barrel through the bulk material port; in this process, the meshing of the first gear on the shaft rod and the second gear at the bottom of the transmission shaft, and the meshing of the second gear and the annular tooth surface can drive the cylindrical barrel to rotate synchronously, and then the mineral products in the inner barrel are stirred by the stirring rod outside the cylindrical barrel; compared with the prior art, the present application can realize the carrying of the mineral products at the bottom layer of the inner barrel to the high layer, and realize rapid drying by cooperating with the stirring rod and the hot air unit, thereby improving the drying efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mineral product detection, in particular to a drying device for preparing samples of sticky and wet mineral products and a method for using the same. BACKGROUND

[0002] The current sample preparation and analysis method for low-grade, high-humidity and sticky mineral products still uses the traditional mode. After the sample is taken, it is mixed and divided, and the analysis sample is obtained by static drying method. In daily work, we found that the current sample preparation process has the following technical defects:

[0003] 1. When using the drying oven for static drying, the internal sample is always kept in a static state, and manual intervention is often required during the drying process.

[0004] 2. The heating in the drying oven is by heat conduction, which has low heating efficiency and it is difficult to exchange heat effectively in a relatively closed environment.

[0005] 3. In order to improve the drying efficiency, the method of increasing the drying air volume or increasing the temperature must be used, which will inevitably increase the air blowing energy consumption and waste energy.

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

[0007] 5. The sample is easy to form a coagulation soil block after drying, which has high hardness and large particle size, and cannot be directly fed into the crusher, and still needs manual coarse crushing.

[0008] After searching, the patent with publication number CN110018030A discloses a method for using a drying device for preparing samples of sticky and wet mineral products, the steps are as follows: start the cycloidal pin reducer, open the barrel cover, 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, heating fan and heater, the spiral auger disc 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 the heater blows the sample in the stainless steel inner cylinder again to dry and stir; start the motor, close the heater, reverse start the cycloidal pin reducer, the spiral auger disc pushes the mixed material to the square discharge port I position; rotate the hand wheel, pull out the plug from the plug port, and the sample is discharged into the stirring auger assembly discharge pipe; the motor drives the auger blade with shaft to coarsely crush and transmit the sample to the inlet of the crusher in the next process; the drying device for preparing samples of sticky and wet mineral products realizes the integrated structure of stirring, drying and crushing and the full automatic realization mode.

[0009] However, the prior art still has the following problems: the above-mentioned sample drying device for sticky wet mineral products is pushed upward by a single spiral auger, and due to the limited pushing height, the sample can only reach the stirring height position of the bottom stirring rod, thereby the turning effect is general, and the contact area with hot air is affected, so that the drying efficiency is relatively low. SUMMARY

[0010] The present application provides a sample drying device for sticky wet mineral products and its use method, which solves the problem of insufficient turning effect affecting drying efficiency in the prior art.

[0011] The technical scheme of the present application is as follows: a sample drying device for sticky wet mineral products, comprising an outer barrel, an inner barrel fixed in the outer barrel, a gland cover sealed on the inner barrel, and a chassis fixed at the bottom of the outer barrel, a partition is fixed between the outer barrel and the inner barrel, a spiral distribution of heat conducting plates is embedded on the partition, the inner side of the heat conducting plate is in contact with the outer wall of the inner barrel, and the outer side of the heat conducting plate is in contact with the inner wall of the outer barrel, the heat conducting plate separates the outer barrel and the inner barrel, the partition cavity to form independent condensation channels and preheating air ducts, the top of the inner barrel is provided with an air outlet for the condensation channel to communicate 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 cylindrical barrel capable of rotating is arranged at the center position of the support assembly, a stirring rod for stirring the sticky wet mineral products in the inner barrel is arranged on the outer side of the cylindrical barrel, a conduction assembly for conveying the products at the bottom of the inner cavity of the inner barrel to the top is arranged on the inner side of the cylindrical barrel, a drive unit capable of driving the conduction assembly to reverse is fixed on the chassis of the outer barrel, a transmission member for driving the cylindrical barrel to rotate synchronously under the transmission of the conduction assembly is arranged on the support assembly, and a conical barrel for discharging the dried products is fixed at the bottom of the outer barrel.

[0013] A heat blower capable of heating the air in the preheating air duct and sending it into the inner barrel is arranged on the outer side of the outer barrel, and a flow guide pipe capable of guiding the condensed water in the condensation channel to the conical barrel is fixed at the bottom of the outer barrel.

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

[0015] Preferably, the cylindrical barrel is provided with a feeding port at the bottom cavity of the inner barrel, the top of the cylindrical barrel is provided with a material scattering port above the stirring rod, a partition is fixed in the cylindrical barrel above the material scattering port, and an annular tooth surface is arranged on the inner wall of the cylindrical barrel above the partition.

[0016] The diameter of the conical cylinder gradually decreases from top to bottom, and a discharging pipe is fixed on one side of the bottom of the conical cylinder and communicates with the inner cavity of the conical cylinder, and the outer end of the discharging pipe is filled with a plug.

[0017] Preferably, the transmission assembly comprises a shaft fixed to the output end of the driving assembly, a first auger fixed to the position where the shaft is located in the cylindrical cylinder, a second auger fixed to the position where the shaft is located in the conical cylinder, a first gear fixed to the position above the partition plate, and a water collecting bucket fixed to the top of the shaft and penetrating the cylindrical cylinder and the cover, and a hollow section of the top of the shaft communicates with the water collecting bucket, and a water outlet is formed in the bottom of the hollow section and matches the height of the feeding port.

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

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

[0020] Preferably, the hot air assembly comprises a fixed plate fixed to the outside of the outer barrel, a blower fixed to the fixed plate, an air inlet pipe fixed to the blower and communicating with the bottom cavity of the preheating air duct, and a blowing pipe fixed to the blower and communicating with the bottom cavity of the inner barrel, and a heater arranged on the 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, the center of the gland is fixed with a water inlet pipe leading to the water collecting bucket, and the top of the water inlet pipe is filled with a plug.

[0023] Based on the above-mentioned device for drying sample of sticky wet type mineral product, the application further provides a using method of the drying device, which comprises the following steps:

[0024] Step one, feeding, after opening the gland, the sticky wet type mineral product is placed in the inner barrel;

[0025] Step two, stirring, the driving assembly is started to work in forward rotation, the conduction assembly continuously carries the sticky wet type mineral product at the bottom of the inner barrel to the top and disperses it in the inner barrel, in this process, the cylindrical cylinder is synchronously rotated under the driving of the transmission member, and then the mineral product in the inner barrel is stirred by the stirring rod outside the cylindrical cylinder;

[0026] Step three, heating, open the hot air unit work, to the inner barrel conveying hot air, with the stirring rod stirring action makes the moisture in the mineral products evaporate quickly, the water vapor after evaporation with the airflow through the air outlet into the condensation channel, because the heat conducting plate on the partition a part in the condensation channel can absorb heat, and the heat conducting plate another part in the preheating air duct can dissipate heat, the hot steam in the condensation channel is relatively high in temperature of the heat conducting plate, after precooling water vapor condenses into droplets and spiral downward convergence, after condensation air through the condensation channel bottom cavity exhaust hole exhaust, and through the preheating air duct top into the air heat conducting plate dissipating heat absorption to achieve preheating, and through the hot air unit heating again sent into the inner barrel;

[0027] Step four, discharge, close the hot air unit and open the drive unit reverse work, drive the conduction assembly directs the inner barrel bottom after drying mineral products to the conical cylinder, broken after the sub-division discharge.

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

[0029] 1, the present application in the drive unit positive rotation work, the first auger on the shaft rod will come in the wet type mineral products from the columnar cylinder inside continuously upward, and dispersed in the inner barrel through the bulkhead, this process by the first gear on the shaft rod and the meshing of the second gear at the bottom of the transmission shaft, and the meshing of the second gear and the ring surface can drive the columnar cylinder synchronous rotation, and then by the stirring rod outside the columnar cylinder to the mineral products in the inner barrel, compared with the prior art, the present application can realize the inner barrel bottom layer mineral products to the high layer, and cooperate with the stirring rod and the hot air unit to realize rapid drying, improve the drying efficiency;

[0030] 2, the present application in the water vapor after evaporation with the airflow through the air outlet into the condensation channel, because the heat conducting plate on the partition a part in the condensation channel can absorb heat, and the heat conducting plate another part in the preheating air duct can dissipate heat, the hot steam in the condensation channel is relatively high in temperature of the heat conducting plate, after precooling water vapor condenses into droplets and spiral downward convergence, after condensation air through the condensation channel bottom cavity exhaust hole exhaust, and through the preheating air duct top into the air heat conducting plate dissipating heat absorption to achieve preheating, and through the hot air unit heating again sent into the inner barrel, compared with the prior art, the present application can make full use of the heat of the air, realize the waste heat recovery, to save energy consumption;

[0031] 3、The invention is through the drive unit reverse work, the first auger on the shaft guide the dried mineral products that come into the feed inlet to the conical cylinder, and through the second auger on the conical cylinder downward, due to the conical cylinder and the second auger's conical diameter design, can further crush the dried mineral products, open the plug can discharge the processed mineral products, relative to the prior art, the invention integrated spiral lifting and the broken design of the discharge, can save maintenance cost, and reduces the size of the equipment, more flexible and convenient;

[0032] 4、The invention can be through the opening of the water inlet pipe on the plug, and add cleaning water, cleaning water through the water collecting bucket of the flow effect and enter the hollow section cavity on the top of the shaft and through the water outlet into the cylindrical barrel, a part of the water in the cylindrical barrel is discharged through the discharge port into the inner barrel, under the stirring action of the stirring rod, the inner barrel is cleaned, another part of the water in the cylindrical barrel continues 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 cylinder, in addition, the flow guide pipe can be opened by the intercepting valve, and a small part of water condensed from the condensing channel is introduced into the conical cylinder through the flow guide pipe to clean the inner wall of the conical cylinder and the second auger, relative to the prior art, the invention can realize the self-cleaning function of the barrel and each component without opening the cover, and can fully utilize the evaporated and condensed water resources, reduce resource waste, and improve cleaning efficiency. BRIEF DESCRIPTION OF DRAWINGS

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

[0034] Figure 1 A partial cross-sectional structure schematic diagram of a sample preparation and drying device for sticky and wet mineral products is provided for the invention;

[0035] Figure 2 A partial cross-sectional structure schematic diagram of a sample preparation and drying device for sticky and wet mineral products is provided for the invention;

[0036] Figure 3 A partial cross-sectional structure schematic diagram of a sample preparation and drying device for sticky and wet mineral products is provided for the invention;

[0037] Figure 4 A Figure 3 Enlarged structure schematic diagram of A;

[0038] Figure 5 A Figure 3 Enlarged structure schematic diagram of B;

[0039] Figure 6 A conductive assembly structure schematic diagram is provided for the invention;

[0040] Figure 7 A hot air unit structure schematic diagram is provided for the invention;

[0041] In the figure: 1, outer barrel; 2, inner barrel; 21, air outlet; 22, exhaust hole; 3, partition layer; 4, heat conduction plate; 5, hot air unit; 51, air blower; 52, air inlet pipe; 53, air blowing pipe; 54, heater; 55, fixed plate; 6, cylindrical barrel; 61, feeding port; 62, bulk material outlet; 63, annular tooth surface; 64, partition plate; 7, stirring rod; 8, support assembly; 81, cover; 82, support rod; 9, conduction assembly; 91, shaft; 92, first auger; 93, second auger; 94, first gear; 95, water collecting bucket; 96, water outlet; 10, driving unit; 11, transmission member; 111, transmission shaft; 112, second gear; 12, conical barrel; 121, discharging pipe; 122, plug; 13, flow guide pipe; 131, intercepting valve; 14, gland; 141, water inlet pipe; 142, sealing plug. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work, are involved in the protection scope of the present application.

[0043] Please refer to Figure 1 and Figure 2The application provides a technical scheme: a sample drying device for sticky and wet mineral products, which comprises an outer barrel 1, an inner barrel 2 fixed in the outer barrel 1, a cover 14 covering the inner barrel 2, and a bottom frame fixed at the bottom of the outer barrel 1, a partition 3 is fixed between the outer barrel 1 and the inner barrel 2, the partition 3 is fixedly embedded with spiral heat-conducting plates 4, the inner side of the heat-conducting plates 4 is in contact with the outer wall of the inner barrel 2, the outer side of the heat-conducting plates 4 is in contact with the inner wall of the outer barrel 1, the heat-conducting plates 4 separate the outer barrel 1, the inner barrel 2 and the partition 3 into cavities to form independent condensation channels and preheating air ducts, an air outlet 21 is formed at the top of the inner barrel 2 to communicate the condensation channels with the inner cavity of the inner barrel 2, the air outlet 21 is provided with an intercepting net to prevent the product from leaking out, an exhaust hole 22 is formed at one side of the bottom of the outer barrel 1 to lead to the bottom cavity of the condensation channels, the exhaust hole 22 is inclined upward to prevent water flow from flowing out, the top of the preheating air duct is open, and a dustproof net is arranged at the opening, the water vapor after evaporation enters the condensation channels through the air outlet 21 under the action of airflow, part of the heat-conducting plates 4 on the partition 3 is in the condensation channels to absorb heat, and the other part of the heat-conducting plates 4 is in the preheating air duct to dissipate heat, the hot steam in the condensation channels has a relatively high temperature relative to the heat-conducting plates 4, the water vapor is condensed into liquid drops after precooling and spirally converges downward, the air after condensation is discharged through the exhaust hole 22 of the bottom cavity of the condensation channels, and the air entering through the top of the preheating air duct absorbs the heat dissipated by the heat-conducting plates 4 to realize preheating, and is heated by a hot air unit 5 and then sent into the inner barrel 2 again.

[0044] Please refer to Figure 3 , the outer barrel 1 is fixedly provided with a supporting assembly 8, the supporting assembly 8 comprises a sleeve cover 81, the top of the cylindrical barrel 6 is rotationally connected with the sleeve cover 81, the bottom of the cylindrical barrel 6 is rotationally connected with the outer barrel 1, the outer side of the sleeve cover 81 is fixedly provided with a plurality of support rods 82 radially fixed on the inner wall of the inner barrel 2, and the support rods 82 are used for rotationally supporting the cylindrical barrel 6.

[0045] Please refer to Figure 3 , Figure 4 and Figure 5 , a rotatable cylindrical barrel 6 is arranged at the center position of the supporting assembly 8, the cylindrical barrel 6 is provided with a feeding port 61 at the bottom cavity of the inner barrel 2, the top of the cylindrical barrel 6 is provided with a material scattering port 62 above the stirring rod 7, a partition plate 64 is fixedly arranged in the cylindrical barrel 6 above the material scattering port 62, and an annular tooth surface 63 is arranged on the inner wall of the cylindrical barrel 6 above the partition plate 64.

[0046] Please refer to Figure 3 , Figure 4 , Figure 5 and Figure 6, the outer side of the cylindrical barrel 6 is provided with a stirring rod 7 for stirring the sticky wet mineral products in the inner barrel 2, the inner side of the cylindrical barrel 6 is provided with a conduction assembly 9 for conveying the products at the bottom of the inner cavity of the inner barrel 2 to the top, the conduction assembly 9 comprises a shaft 91 fixed to the output end of the drive assembly 10, the shaft 91 is fixed with a first auger 92 at the position located in the cylindrical barrel 6, the shaft 91 is fixed with a second auger 93 at the position located in the conical barrel 12, the shaft 91 is fixed with a first gear 94 at the position above the partition plate 64, the top of the shaft 91 penetrates the cylindrical barrel 6 and the cover 81 outward and is fixed with a water collecting hopper 95, the top of the shaft 91 is provided with a hollow section communicating with the water collecting hopper 95, and the bottom of the hollow section is provided with a water outlet 96 matching the height of the feeding port 61, when the shaft 91 rotates forwardly, the sticky wet mineral products entering the feeding port 61 are continuously conveyed upwardly in the cylindrical barrel 6 by the first auger 92 on the shaft 91.

[0047] Please refer to Figure 2 and Figure 4 , the bottom frame of the outer barrel 1 is fixed with the drive assembly 10 capable of driving the conduction assembly 9 to rotate forwardly and reversely, the support assembly 8 is provided with a transmission member 11 driven by the conduction assembly 9 to drive the cylindrical barrel 6 to rotate synchronously, the transmission member 11 comprises a transmission shaft 111 rotatably connected with the cover 81, the bottom of the transmission shaft 111 is fixed with a second gear 112 engaged with the first gear 94 and the annular tooth surface 63, when the sticky wet mineral products entering the feeding port 61 are continuously conveyed upwardly in the cylindrical barrel 6 by the first auger 92 on the shaft 91, the mineral products can be dispersed in the inner barrel 2 through the bulk discharge port 62, in this process, the cylindrical barrel 6 can be driven to rotate synchronously by the engagement of the first gear 94 on the shaft 91 with the second gear 112 at the bottom of the transmission shaft 111 and the engagement of the second gear 112 with the annular tooth surface 63, and then the mineral products in the inner barrel 2 can be stirred by the stirring rod 7 outside the cylindrical barrel 6.

[0048] Please refer to Figure 1 and Figure 2 , the bottom of the outer barrel 1 is fixed with the conical barrel 12 for conveying the dried products in cooperation with the conduction assembly 9, the diameter of the conical barrel 12 gradually decreases from top to bottom, the bottom side of the conical barrel 12 is fixed with a discharge pipe 121 communicating with the inner cavity of the conical barrel 12, the outer end of the discharge pipe 121 is filled with a plug 122, the drive assembly 10 reversely works, the dried mineral products entering the feeding port 61 are guided to the conical barrel 12 by the first auger 92 on the shaft 91 and are downwardly conveyed by the second auger 93 on the conical barrel 12.

[0049] Please refer to Figure 1 and Figure 2 , Figure 7The outer barrel 1 is provided with a hot air unit 5 capable of sending the air in the preheating air channel into the inner barrel 2 after heating, the hot air unit 5 comprises a fixed plate 55 fixed to the outer barrel 1, the fixed plate 55 is fixed with a blower 51, the air inlet of the blower 51 is fixed with an air inlet pipe 52 communicated with the bottom cavity of the preheating air channel, the air outlet of the blower 51 is fixed with a blowing pipe 53 communicated with the bottom cavity of the inner barrel 2, the blowing pipe 53 is provided with a heater 54, the mineral products are stirred by the blower 51, the air in the preheating air channel is sucked into the blowing pipe 53 through the air inlet pipe 52 and heated by the heater 54, and then sent into the bottom cavity of the inner barrel 2, and then the moisture in the mineral products is quickly evaporated by the stirring action of the stirring rod 7.

[0050] Please refer to Figure 1 and Figure 2 The bottom of the outer barrel 1 is fixed with a flow guide pipe 13 capable of guiding the water condensed in the condensing channel to the conical cylinder 12, the flow guide pipe 13 is provided with a shutoff valve 131 capable of opening and closing the flow in the flow guide pipe 13, the flow guide pipe 13 can be opened through the shutoff valve 131 during cleaning, and a small part of the water condensed in the condensing channel is guided into the conical cylinder 12 through the flow guide pipe 13 to clean the inner wall of the conical cylinder 12 and the second auger 93.

[0051] Please refer to Figure 1 and Figure 2 The center of the gland 14 is fixed with a water inlet pipe 141 communicated with the water collecting basin 95, the top of the water inlet pipe 141 is filled with a plug 142, the plug 142 on the water inlet pipe 141 is opened, and cleaning water is added, the cleaning water is gathered by the water collecting basin 95 and enters the hollow cavity at the top of the shaft 91 and then enters the cylindrical cylinder 6 through the water outlet 96.

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

[0053] Based on the above embodiment, the application further provides a use method of the drying device, comprising the following steps:

[0054] Step one, feeding, after the gland 14 is opened, the wet mineral products are placed in the inner barrel 2;

[0055] Step two, stirring, the driving unit 10 is started to drive the transmission assembly 9 to continuously transport the wet mineral products at the bottom of the inner barrel 2 to the top and disperse in the inner barrel 2, in this process, the cylindrical cylinder 6 is driven to rotate synchronously by the transmission of the transmission part 11, and then the mineral products in the inner barrel 2 are stirred by the stirring rod 7 outside the cylindrical cylinder 6;

[0056] Step three, heating, open the hot air group 5 work, to the inner barrel 2 into the hot air, with the stirring rod 7 stirring action makes the moisture in the mineral products evaporate quickly, the water vapor after evaporation with the airflow through the air outlet 21 into the condensation channel, because the heat conducting plate 4 on the partition 3 part in the condensation channel can absorb heat, and the heat conducting plate 4 another part in the preheating air duct can dissipate heat, the hot steam in the condensation channel is relatively high in temperature of the heat conducting plate 4, after precooling, the water vapor condenses into droplets and spirals downward, the air after condensation passes through the exhaust hole 22 of the condensation channel bottom cavity and is discharged, and the air entering through the preheating air duct top absorbs the heat emitted by the heat conducting plate 4 to achieve preheating, and is heated again by the hot air group 5 and then sent into the inner barrel 2;

[0057] Step four, discharge, close the hot air group 5 and open the drive group 10 reverse work, drive the transmission assembly 9 to guide the mineral products in the inner barrel 2 bottom after drying to the conical cylinder 12, and discharge after crushing and dividing in the conical cylinder 12.

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

[0059] And the water vapor after evaporation with the airflow through the air outlet 21 into the condensation channel, because the heat conducting plate 4 on the partition 3 part in the condensation channel can absorb heat, and the heat conducting plate 4 another part in the preheating air duct can dissipate heat, the hot steam in the condensation channel is relatively high in temperature of the heat conducting plate 4, after precooling, the water vapor condenses into droplets and spirals downward, the air after condensation passes through the exhaust hole 22 of the condensation channel bottom cavity and is discharged, and the air entering through the preheating air duct top absorbs the heat emitted by the heat conducting plate 4 to achieve preheating, and is heated again by the hot air group 5 and then sent into the inner barrel 2;

[0060] After the drying is finished, the hot air unit 5 is turned off and the driving unit 10 is started to work reversely, the dried mineral products entering the inlet 61 are guided to the conical cylinder 12 by the first auger 92 on the shaft 91, and are transported downward by the second auger 93 on the conical cylinder 12, due to the conical and reduced diameter design of the conical cylinder 12 and the second auger 93, the dried mineral products can be further broken and separated, the plug 122 is opened, and the processed mineral products can be discharged;

[0061] When cleaning is needed, the plug 142 on the water inlet pipe 141 is opened, and cleaning water is added, the cleaning water enters the hollow cavity on the top of the shaft 91 through the water collecting hopper 95, and enters the cylindrical cylinder 6 through the water outlet 96, part of the water in the cylindrical cylinder 6 is discharged into the inner barrel 2 through the discharge port 62, and the inner barrel 2 is cleaned under the stirring action of the stirring rod 7, another part of the water in the cylindrical cylinder 6 continues to clean the inner wall of the cylindrical cylinder 6 and the first auger 92, the cleaned water in the inner barrel 2 and the cylindrical cylinder 6 enters the conical cylinder 12, and the flow pipe 13 is opened through the flow valve 131, and a small part of the water condensed in the condensing channel is introduced into the conical cylinder 12 through the flow pipe 13, and the inner wall of the conical cylinder 12 and the second auger 93 are cleaned.

[0062] The above is only the preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sample drying device for viscous and wet mineral products, comprising an outer barrel (1), an inner barrel (2) fixed inside the outer barrel (1), a pressure cap (14) sealing the inner barrel (2), and a base 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 of the heat-conducting plate (4) is in contact with the outer wall of the inner barrel (2), and the outer side of the heat-conducting plate (4) is in contact with 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) cavity to form an independent condensation channel and a preheating air duct. An air outlet (21) is opened at the top of the inner barrel (2) to connect the condensation channel with the inner cavity of the inner barrel (2). An exhaust hole (22) is opened on one side of the bottom of the outer barrel (1) to the bottom cavity of the condensation channel. The top of the preheating air duct is open. The outer barrel (1) is fixed with a support assembly (8). A rotatable cylindrical tube (6) is provided at the center of the support assembly (8). A stirring rod (7) for stirring the sticky and wet mineral products in the inner barrel (2) is provided on the outside of the cylindrical tube (6). A transmission assembly (9) for transporting the products at the bottom of the inner barrel (2) to the top is provided on the inside of the cylindrical tube (6). A drive unit (10) for driving the transmission assembly (9) to rotate forward and backward is fixed on the base frame of the outer barrel (1). A transmission component (11) for driving the cylindrical tube (6) to rotate synchronously under the transmission action of the transmission assembly (9) is provided on the support assembly (8). A conical tube (12) for cooperating with the transmission assembly (9) to send out the dried products is fixed at the bottom of the outer barrel (1). The outer barrel (1) is provided with a hot air unit (5) that can heat the air in the preheating air duct and send it into the inner barrel (2). The bottom of the outer barrel (1) is fixed with a guide pipe (13) that can guide the water condensed in the condensation channel to the conical cylinder (12). The support assembly (8) includes a cover (81), the top of the cylindrical tube (6) is rotatably connected to the cover (81), the bottom of the cylindrical tube (6) is rotatably connected to the outer tube (1), and a number of support rods (82) are fixed radially to the inner wall of the inner tube (2) on the outside of the cover (81). The cylindrical tube (6) has a feed inlet (61) at the bottom cavity of the inner barrel (2), and a discharge port (62) above the stirring rod (7) is opened at the top of the cylindrical tube (6). A partition (64) is fixed inside the cylindrical tube (6) above the discharge port (62), and an annular toothed surface (63) is provided on the inner wall of the cylindrical tube (6) above the partition (64). The diameter of the conical tube (12) gradually decreases from top to bottom. A discharge pipe (121) communicating with the inner cavity of the conical tube (12) is fixed on one side of the bottom of the conical tube (12), and a material plug (122) is filled at the outer port of the discharge pipe (121). The transmission component (9) includes a shaft (91), which is fixed to the output end of the drive unit (10). A first auger (92) is fixed to the part of the shaft (91) inside the cylindrical tube (6), and a second auger (93) is fixed to the part of the shaft (91) inside the conical tube (12). A first gear (94) is fixed to the part of the shaft (91) above the partition plate (64). The top of the shaft (91) extends upward through the cylindrical tube (6) and the cover (81) and is fixed with a water receiving hopper (95). The top of the shaft (91) is provided with a hollow section communicating with the water receiving hopper (95), and the bottom of the hollow section is provided with a water outlet (96) that matches the height of the feed inlet (61). The first auger (92) is cylindrical and adapted to the shape of the cylindrical tube (6), and the second auger (93) is conical and adapted to the shape of the conical tube (12).

2. The apparatus for drying and preparing samples of viscous mineral products according to claim 1, characterized in that, The transmission component (11) includes a transmission shaft (111), which is rotatably connected to the cover (81). The bottom of the transmission shaft (111) is fixed with a second gear (112) that meshes with the first gear (94) and the annular tooth surface (63).

3. The apparatus for drying and preparing samples of viscous mineral products according to claim 1, characterized in that, The hot air unit (5) includes a fixing plate (55), which is fixed to the outside of the outer barrel (1). 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). 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 provided on the air blowing pipe (53).

4. The apparatus for drying and preparing samples of viscous mineral products according to claim 1, characterized in that, The guide pipe (13) is equipped with a flow-stopping valve (131) that can open and close the flow inside the guide pipe (13).

5. The apparatus for drying and preparing samples of viscous mineral products according to claim 1, characterized in that, The pressure cap (14) has a water inlet pipe (141) fixed at the center position leading to the water receiving hopper (95), and the top of the water inlet pipe (141) is filled with a plug (142).

6. A method of using a drying device, as described in claim 1, for drying samples of viscous and moist mineral products, characterized in that... Includes the following steps: Step 1, add material. After opening the pressure cap (14), place the sticky and wet mineral product into the inner barrel (2); Step 2, stirring: start the drive unit (10) to rotate forward, drive the transmission component (9) to continuously transport 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 cylinder (6) is driven to rotate synchronously by the transmission component (11), and then the stirring rod (7) on the outside of the cylindrical cylinder (6) stirs the mineral products in the inner barrel (2). Step 3, heating: turn on the hot air unit (5) to deliver hot air into the inner barrel (2). With the stirring action of the stirring rod (7), the water in the mineral product evaporates quickly. The evaporated water vapor enters the condensation channel through the air outlet (21) with the airflow. Since part of the heat-conducting plate (4) on the partition (3) is in the condensation channel, it can absorb heat, while the other part of the heat-conducting plate (4) is in the preheating air duct, it can dissipate heat. The hot steam in the condensation channel is relatively hot compared to the heat-conducting plate (4). After precooling, the water vapor condenses into droplets and spirals downwards. The air after condensation is discharged through the exhaust hole (22) at the bottom of the condensation channel. The air entering through the top of the preheating air duct absorbs the heat emitted by the heat-conducting plate (4) to achieve preheating. After being heated by the hot air unit (5), it is sent back into the inner barrel (2). Step 4, discharge the material, turn off the hot air unit (5) and turn on the drive unit (10) to reverse the operation, drive the transmission component (9) to guide the dried mineral product at the bottom of the inner barrel (2) to the conical cylinder (12), and discharge it after crushing and shrinking in the conical cylinder (12).

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