Graphite electric heating device suitable for pretreatment of ore sample

Abstract

The utility model relates to the technical field of ore sample pretreatment devices, and discloses a graphite electric heating device. Comprising a treatment machine body, a discharging assembly, a heating assembly and a controller are installed on the top wall of the treatment machine body, a mineral sample is placed in a treatment bottle and placed in a placement groove, water vapor can be condensed in an adsorption cover and slide into a containing groove, and the water vapor is discharged into a containing box through a discharging pipe to be stored, so that when the mineral sample is pretreated, the water vapor can be discharged out of the containing box, and the water vapor can be discharged out of the containing box. And acid mist and distilled water steam generated in the heating process can be quickly discharged, so that the condition of short circuit caused by corrosion of electronic elements due to the fact that the acid mist and the distilled water steam are filled on a treatment machine body is avoided. Meanwhile, a heating device, a heat conduction device and a temperature return cover are arranged on the heating assembly, so that heat conduction is more uniform, and the detection accuracy of the ore sample is improved. The whole heating device of the device has good stability, high temperature control precision and good safety effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to mineral sample pretreatment device technical field, specifically a graphite electric heating device suitable for mineral sample pretreatment. BACKGROUND

[0002] The graphite electric heating device for mineral sample pretreatment refers to a kind of equipment using graphite electric heating plate to carry out sample pretreatment, and graphite electric heating plate is a kind of electric heating plate with graphite as surface heating material, with the characteristics of corrosion resistance, high temperature resistance, fast heat transfer speed, its working principle is to convert electric energy into heat energy by heating alloy wire, and heat is conducted by the shell of outer layer, graphite electric heating plate is suitable for the pretreatment of various mineral samples, such as drying, digestion, boiling operation, to meet the demand of laboratory to mineral sample heating.

[0003] When boiling and other operations that produce volatile gases are carried out during the pretreatment of mineral samples, acid mist and distilled water vapor will fill the entire electric heating equipment, and adhere to the inner wall of the electric heating equipment, which can cause corrosion, short circuit and other conditions to the electronic connection elements, and there is a certain safety risk. At the same time, the temperature uniformity of the heat conduction device of the existing device is poor, and the temperature difference between the center temperature and the edge temperature is large, which leads to low accuracy of the results when processing the same batch of samples.

[0004] Therefore, the utility model provides a graphite electric heating device suitable for mineral sample pretreatment to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a graphite electric heating device suitable for mineral sample pretreatment, which solves the above problems.

[0006] To achieve the above purpose, the utility model is realized by the following technical scheme: a graphite electric heating device suitable for mineral sample pretreatment, comprising a processing machine body, a discharge assembly is installed on the top wall of the processing machine body, a heating assembly is installed on the inner wall of the processing machine body, and a controller is installed on the left side of the front wall of the processing machine body.

[0007] The heating assembly comprises a base, a heating rack is arranged on the base, a heat insulation device is arranged in the heating rack, a heating device is arranged on the heat insulation device, a heat conduction device is arranged on the heating device, a temperature sensor is installed on the heat conduction device, and a temperature sensor is installed on the heat conduction device.

[0008] The upper edge of the temperature recovery cover is higher than the upper surface of the heat conduction device, the temperature recovery cover prevents the temperature of the edge of the heat conduction device from spreading outward, and the heating temperature circulates in the internal area enclosed by the temperature recovery cover, so that the internal edge temperature and the internal center temperature of the heating device are consistent.

[0009] Through the technical scheme, the water vapor inside the processing machine body can be discharged by the discharge assembly, and accumulation inside the processing cavity of the processing machine body is prevented.

[0010] Further, the discharge assembly comprises an air suction pump fixedly installed on the left side of the top wall of the processing machine body, a placing frame fixedly installed on the left side wall of the processing machine body, a plurality of groups of elastic clamping plates uniformly installed on the inner wall of the placing frame, and a same containing tank clamped and installed on the inner wall of the plurality of groups of elastic clamping plates. An exhaust pipe is communicated with the exhaust port of the air suction pump, an air inlet pipe is communicated with the air inlet port of the air suction pump, a connecting pipe is communicated with the bottom end of the air inlet pipe, and a same adsorption cover is communicated with the connecting pipe penetrating through the processing machine body at the bottom end of the connecting pipe. A containing groove is formed in the bottom inner wall of the adsorption cover.

[0011] Further, the plurality of groups of elastic clamping plates are arranged uniformly in up-down direction, each group of elastic clamping plates has two and is arranged symmetrically left and right, the bottom end of the exhaust pipe is communicated with the containing tank through a connecting flange, the bottom wall rear portion of the containing groove is communicated with a discharge pipe, the rear end of the discharge pipe is communicated with a containing box penetrating through the processing machine body, the containing box is fixedly installed on the rear wall of the processing machine body, and the bottom wall of the containing box is communicated with an L-shaped pipe.

[0012] Through the technical scheme, the elastic clamping plates can clamp and fix the containing tank, and are mainly used for collecting acid mist and distilled water vapor.

[0013] Further, the bottom wall of the base is fixedly installed at a position on the inner wall of the processing machine body, and the lower portion of the temperature recovery cover is fixedly installed on the base.

[0014] Through the technical scheme, the temperature recovery cover has good heat preservation effect.

[0015] Further, the heating device installed on the top wall of the base and inside the temperature recovery cover is a track-type ceramic sheet heater, an electric heating module is installed on the rear wall of the processing machine body, and the electric heating module is electrically connected with the track-type ceramic sheet heater.

[0016] Through the technical scheme, the heating plate and the electric heating module can cooperate to heat the graphite heat conduction plate.

[0017] Further, the heat conduction device is a graphite heat conduction plate, the temperature sensor is a K-type temperature measuring thermocouple, and the temperature measuring end face of the K-type temperature measuring thermocouple abuts against the side wall of the graphite heat conduction plate.

[0018] Through the technical scheme, the temperature measuring probe is arranged to monitor the temperature of the graphite heat conduction plate in real time, and the temperature of the graphite heat conduction plate is monitored in real time.

[0019] Further, the top wall of the temperature recovery cover is sleeved with a placing rack, the top wall of the placing rack is uniformly provided with a plurality of placing grooves, a plurality of treatment bottles are uniformly placed in the inner walls of the placing grooves, and the bottom walls of the plurality of treatment bottles are attached to the top wall of the graphite heat conduction plate.

[0020] Through the above technical scheme, the treatment bottle is mainly used for placing the ore sample to be treated, and is stored through the placing rack.

[0021] Further, the front wall of the treatment machine body is provided with a controller on the left side, the controller is electrically connected with the air suction pump, the electric heating module and the K-type temperature measuring thermocouple, the front wall of the treatment machine body is hingedly provided with a closing door, the front wall of the closing door is provided with a transparent observation window, and the bottom wall of the closing door is fixedly provided with a supporting frame.

[0022] Through the above technical scheme, the transparent observation window can observe the processing condition inside the treatment machine body in real time, and the supporting frame has the functions of supporting and fixing the whole device. Beneficial effects

[0023] The graphite electric heating device suitable for ore sample pretreatment has the following beneficial effects compared with the prior art:

[0024] (1) The device is provided with a heating device, a heat conduction device and a temperature recovery cover on the heating assembly, the upper edge of the temperature recovery cover is higher than the upper surface of the heat conduction device, the temperature at the peripheral edge of the heat conduction device does not diffuse outward, and the temperature circulates in the internal area enclosed by the temperature recovery cover, thereby enhancing the uniformity of the surface temperature of the heat conduction device and improving the accuracy of sample detection.

[0025] (2) The device is provided with a discharge assembly, and the acid mist and distilled water vapor in the treatment machine body are sucked into the storage tank through the cooperation of the air suction pump, the air inlet pipe, the connecting pipe and the adsorption cover assembly, the water vapor condenses in the adsorption cover and slides into the containing groove, and is discharged into the containing box through the discharge pipe, so that the acid mist and distilled water vapor generated during the heating process can be quickly discharged when the ore sample is pretreated, and the corrosion of electronic components caused by the short circuit is avoided.

[0026] (3) The device is provided with a placing rack, the ore sample is placed in the treatment bottle and placed in the placing groove of the placing rack, the placing rack is sleeved on the top of the temperature recovery cover, the treatment bottle is attached to the top wall of the graphite heat conduction plate, the electric heating module and the heating plate heat the graphite heat conduction plate, the temperature probe monitors the temperature of the graphite heat conduction plate in real time, the graphite heat conduction plate heats the ore sample in the treatment bottle, the containing tank is placed in the inner wall of the placing frame and is fixedly connected with the elastic clamping plate and is connected with the exhaust pipe through the connecting flange, and the device is suitable for different detection projects and greatly enhances the adaptability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the external structure front view of the utility model;

[0028] Figure 2 is the external structure rear view of the utility model;

[0029] Figure 3 is the external structure left view of the utility model;

[0030] Figure 4 is the heating assembly internal structure explosion view of the utility model;

[0031] Figure 5 is the discharge assembly external structure schematic view of the utility model.

[0032] Fig. 1, processor body; 2, support frame; 3, controller; 4, discharge assembly; 41, air suction pump; 42, air inlet pipe; 43, connecting pipe; 44, adsorption cover; 45, containing groove; 46, discharge pipe; 47, containing box; 48, exhaust pipe; 49, placing frame; 410, containing tank; 411, elastic clamping plate; 412, L-shaped pipe; 5, closed door; 6, transparent observation window; 7, heating assembly; 71, electric heating module; 72, base; 73, back temperature cover; 74, K type temperature measuring thermocouple; 75, crawler type ceramic sheet heater; 76, graphite heat conduction plate; 77, placing rack; 78, placing groove; 79, processing bottle. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model. Embodiment one:

[0034] Please refer to Figures 1-5 A graphite electric heating device suitable for ore sample pretreatment, including processor body 1, the discharge assembly 4 is installed on the top wall of processor body 1, the heating assembly 7 is installed on the inner wall of processor body 1, the controller 3 is installed on the left side of the front wall of processor body 1.

[0035] The exhaust assembly 4 comprises an air suction pump 41 fixedly installed on the left side of the top wall of the processing machine body 1, a placing frame 49 is fixedly installed on the left side wall of the processing machine body 1, a plurality of groups of elastic clamping plates 411 are uniformly installed on the inner wall of the placing frame 49, the same containing tank 410 is clamped and installed on the inner wall of the plurality of groups of elastic clamping plates 411, the exhaust port of the air suction pump 41 is communicated with an exhaust pipe 48, the air inlet of the air suction pump 41 is communicated with an air inlet pipe 42, the bottom end of the air inlet pipe 42 is communicated with a connecting pipe 43, the bottom end of the connecting pipe 43 penetrates through the processing machine body 1 and is communicated with the same adsorption cover 44, the bottom inner wall of the adsorption cover 44 is provided with a containing groove 45, the plurality of groups of elastic clamping plates 411 are uniformly arranged upwards and downwards, each group of elastic clamping plates 411 has two and is symmetrically arranged left and right, the bottom end of the exhaust pipe 48 is communicated with the containing tank 410 through a connecting flange, the bottom wall of the containing groove 45 is communicated with an exhaust pipe 46, the rear end of the exhaust pipe 46 penetrates through the processing machine body 1 and is communicated with a containing box 47, the containing box 47 is fixedly installed on the rear wall of the processing machine body 1, and the bottom wall of the containing box 47 is communicated with an L-shaped pipe 412.

[0036] In the embodiment of the utility model, the purpose of the setting of the exhaust assembly 4 is that acid mist and distilled water vapor can be quickly exhausted when the ore sample is pretreated, so that the acid mist and the distilled water vapor are avoided from gathering in the processing cavity of the processing machine body 1, and part of the water vapor can slide downwards to the inner wall of the containing groove 45 in the continuous adsorption work of the adsorption cover 44, and then the water vapor can be discharged into the containing box 47 through the exhaust pipe 46. Embodiment two:

[0037] Please refer to Figures 1-5 The heating assembly 7 comprises a base 72, a heating rack is arranged on the base 72, a heat insulation device is arranged in the rack, the heat insulation device is fiber heat insulation cotton, a heating device is arranged on the heat insulation device, a heat conduction device is arranged on the heating device, a temperature sensor is arranged on the heat conduction device, and a temperature recovery cover 73 is arranged around the heat conduction device. The upper edge of the temperature recovery cover 73 is higher than the surface of the heat conduction device, the temperature recovery cover 73 prevents the temperature of the edge of the heat conduction device from spreading outward, the temperature circulates in the enclosed area of the temperature recovery cover 73, and the edge temperature is consistent with the center temperature of the heating device.

[0038] The bottom wall of the base 72 is fixedly installed on the inner wall of the processor body 1, the lower part of the back temperature cover 73 is fixedly installed on the base 72, the heating device installed on the top wall of the base 72 and inside the back temperature cover 73 is a track type ceramic sheet heater 75, the electric heating module 71 is installed on the rear wall of the processor body 1, and the electric heating module 71 is electrically connected with the track type ceramic sheet heater 75. The top wall of the track type ceramic sheet heater 75 is provided with a graphite heat conduction plate 76, a temperature sensor is installed on the inner side wall of the processor body 1 and corresponds to the position of the graphite heat conduction plate 76, the temperature sensor is a K-type temperature measuring thermocouple 74, the left end of the K-type temperature measuring thermocouple 74 abuts against the side wall of the graphite heat conduction plate 76, the back temperature cover 73 is sleeved with a placing rack 77 on the top wall, a plurality of placing recesses 78 are uniformly formed in the top wall of the placing rack 77, a plurality of processing bottles 79 are uniformly placed in the inner walls of the plurality of placing recesses 78, the bottom walls of the plurality of processing bottles 79 are attached to the top wall of the graphite heat conduction plate 76, a controller 3 is installed on the left side of the front wall of the processor body 1, the controller 3 is electrically connected with the air suction pump 41, the electric heating module 71 and the K-type temperature measuring thermocouple 74, and a closing door 5 is hingedly installed on the right side of the front wall of the processor body 1. The front wall of the closing door 5 is provided with a transparent observation window 6, and the bottom wall of the closing door 5 is fixedly installed with a supporting frame 2.

[0039] In the embodiment of the utility model, the heating assembly 7 is arranged, which can heat the processing bottles 79 placed on the graphite heat conduction plate 76 through the cooperation of the electric heating module 71 and the track type ceramic sheet heater 75 during work, and the K-type temperature measuring thermocouple 74 is used to monitor the temperature of the graphite heat conduction plate 76 in real time, and the placing rack 77 and the placing recesses 78 can be used to take the processing bottles 79 in batches, thereby improving the efficiency of processing the ore samples.

[0040] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art.

[0041] In operation, first, the external power supply and the controller 3 are electrically connected to the air suction pump 41, the electric heating module 71 and the K-type temperature measuring thermocouple 74. Then, the mineral sample to be treated is placed in the inside of the treatment bottle 79, and the treatment bottle 79 is sequentially placed in the inner wall of the corresponding placement groove 78. The entire placement rack 77 is sleeved on the top of the temperature recovery cover 73, so that the treatment bottle 79 is attached to the top wall of the graphite heat conduction plate 76. The electric heating module 71 is started to work under the control of the controller 3, so that the crawler-type ceramic sheet heater 75 starts to heat the graphite heat conduction plate 76. The temperature of the graphite heat conduction plate 76 is monitored in real time by the K-type temperature measuring thermocouple 74 when the graphite heat conduction plate 76 is heated. The graphite heat conduction plate 76 heats the mineral sample in the inside of the treatment bottle 79 in real time. The containing tank 410 is placed in the inner wall of the placement frame 49 and is fixedly connected with the elastic clamping plate 411. The containing tank 410 is fixedly connected with the exhaust pipe 48 through the connecting flange. When acid mist and distilled water vapor are generated during heating, the air suction pump 41 is started to suck the acid mist and distilled water vapor in the inside of the treatment machine body 1 through the cooperation of the air inlet pipe 42, the connecting pipe 43 and the adsorption cover 44. The acid mist and distilled water vapor are stored in the inside of the containing tank 410 through the connecting pipe 43, the air inlet pipe 42 and the exhaust pipe 48. Part of the water vapor is condensed in the inside of the adsorption cover 44 and slides into the containing groove 45. The condensed water vapor is discharged into the containing box 47 through the discharge pipe 46. The L-shaped pipe 412 is used to discharge the condensed water vapor. The graphite heat conduction plate 76 uses isostatic high-purity graphite as a heat conduction component. The heat conduction uniformity and stability of the sample treatment are good, and the temperature control precision is high. The upper surface of the graphite heat conduction plate 76 is milled. The surface flatness is high. The crawler-type ceramic sheet heater 75 uses a crawler-type high-temperature ceramic sheet. The heating device uses a lead oxide ceramic element with high strength and good heat radiation performance as a heating insulating material. The safety is high. The wire connection end uses an aviation quick plug. The plug is acid and alkali resistant and insulating. The temperature control system uses an advanced AI artificial intelligence PID adjustment algorithm. The system has no overshoot and has a self-tuning (AT) function. The anti-interference performance meets the electromagnetic compatibility (EMC) requirement under the harsh and complex detection condition. The input system uses a digital correction system with accurate and stable measurement. The system supports multiple thermocouple and thermistor specifications. The highest resolution is 0.01℃.

[0042] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0043] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the present application, which should be limited only by the appended claims and their equivalents.

Claims

1. A graphite electrothermal device suitable for the pre-treatment of ore samples, comprising a treatment machine body (1), characterized in that, The processing machine body (1) top wall is provided with an exhaust assembly (4), the processing machine body (1) inner wall is provided with a heating assembly (7), and the left side of the front wall of the processing machine body (1) is provided with a controller (3); The heating assembly (7) comprises a base (72), a heating rack is arranged on the base (72), a heat insulation device is arranged in the heating rack, a heating device is arranged on the heat insulation device, a heat conduction device is arranged on the heating device, a temperature sensor is arranged on the heat conduction device, and a temperature sensor is arranged on the heat conduction device. The upper edge of the temperature sensor is higher than the upper surface of the heat conduction device, the temperature sensor makes the temperature of the edge of the heat conduction device not spread outward, and the heating temperature circulates in the internal region enclosed by the temperature sensor, so that the internal edge temperature and the internal center temperature of the heating device are consistent.

2. A graphite electrothermal device suitable for use in the pre-treatment of ore samples according to claim 1, characterised in that, The exhaust assembly (4) comprises an exhaust pump (41), the exhaust pump (41) is fixedly installed on the left side of the top wall of the processing machine body (1), the left side wall of the processing machine body (1) is fixedly provided with a placing frame (49), a plurality of groups of elastic clamping plates (411) are uniformly arranged on the inner wall of the placing frame (49), the same containing tank (410) is clamped and installed on the inner wall of the plurality of groups of elastic clamping plates (411), the exhaust port of the exhaust pump (41) is communicated with an exhaust pipe (48), the air inlet of the exhaust pump (41) is communicated with an air inlet pipe (42), the bottom end of the air inlet pipe (42) is communicated with a connecting pipe (43), the bottom end of the connecting pipe (43) penetrates the processing machine body (1) and is communicated with the same adsorption cover (44), and the bottom inner wall of the adsorption cover (44) is provided with a containing groove (45).

3. A graphite electrothermal device suitable for use in the pre-treatment of ore samples according to claim 2, characterised in that, A plurality of groups of the elastic clamping plates (411) are arranged uniformly in the upper and lower directions, each group of the elastic clamping plates (411) has two and is arranged symmetrically left and right, the bottom end of the exhaust pipe (48) is communicated with the containing tank (410) through a connecting flange, the bottom wall rear portion of the containing groove (45) is communicated with an exhaust pipe (46), the rear end of the exhaust pipe (46) penetrates the processing machine body (1) and is communicated with a containing box (47), the containing box (47) is fixedly installed on the rear wall of the processing machine body (1), and the bottom wall of the containing box (47) is communicated with an L-shaped pipe (412).

4. The graphite electrothermal device for pretreatment of ore samples according to claim 1, characterized in that, The bottom wall of the base (72) is fixedly installed on the inner wall of the processing machine body (1), and the lower part of the temperature sensor is fixedly installed on the base (72).

5. A graphite electrothermal device suitable for use in the pre-treatment of ore samples according to claim 4, characterised in that, The heating device installed on the top wall of the base (72) and in the internal region of the temperature sensor is a track type ceramic sheet heater (75), the rear wall of the processing machine body (1) is provided with an electric heating module (71), and the electric heating module (71) is electrically connected with the track type ceramic sheet heater (75).

6. A graphite electrothermal device suitable for use in the pre-treatment of ore samples according to claim 5, characterised in that, The heat conduction device is a graphite heat conduction plate (76), the temperature sensor is a K-type temperature measuring thermocouple (74), and the temperature measuring end face of the K-type temperature measuring thermocouple (74) abuts against the side wall of the graphite heat conduction plate (76).

7. A graphite electrothermal device suitable for use in the pre-treatment of ore samples according to claim 6, characterised in that, The top wall of the warming cover (73) is sleeved with a placing rack (77), the top wall of the placing rack (77) is uniformly provided with a plurality of placing grooves (78), the inner walls of the plurality of placing grooves (78) are uniformly provided with a plurality of treatment bottles (79), and the bottom walls of the plurality of treatment bottles (79) are attached to the top wall of the graphite heat conduction plate (76).

8. The graphite electrothermal device for pretreatment of ore samples according to claim 1, characterized in that, The front wall left side of the processing machine body (1) is provided with a controller (3), the controller (3) is electrically connected with the air pump (41), the electric heating module (71) and the K type temperature measuring thermocouple (74), the front wall right side of the processing machine body (1) is hingedly provided with a sealing door (5), the front wall of the sealing door (5) is provided with a transparent observation window (6), and the bottom wall of the sealing door (5) is fixedly provided with a supporting frame (2).

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