Online humidity detection device for sodium chloride raw material

Abstract

The utility model discloses an online humidity detection device for a sodium chloride raw material. The online humidity detection device comprises a first belt conveyor and a second belt conveyor, a barrel frame is fixedly arranged at the joint of the first belt conveyor and the second belt conveyor; a blanking barrel is fixedly connected to the barrel frame; a material receiving port at the upper end of the blanking barrel is over against the output end of the first belt conveyor, and a material outlet at the lower end of the blanking barrel is over against a material receiving hopper of the second belt conveyor; a flow dividing pipe is fixedly arranged on the side wall of the material receiving opening; an outlet of the flow dividing pipe is right opposite to a feeding port of the storage bin. A first gate valve is arranged on the shunt pipe; the storage bin is fixedly connected in the frame, and an electric heating coil is arranged on the outer wall of the storage bin; the tail end of a discharging pipe fixedly connected with the lower end of the storage bin faces the second belt conveyor. A second gate valve is arranged on the discharge pipe; the lower end of the frame is connected to the weighing platform. The device can automatically check the humidity of the sodium chloride raw material running on the conveying belt in a sampling manner.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sodium metal production, in particular to a sodium chloride raw material on -line humidity detection device. BACKGROUND

[0002] Sodium chloride is used as an important raw material in the production of sodium metal by electrolysis of molten sodium chloride. If the moisture content of the raw material exceeds the standard, it will have a great impact on the service life of the electrolysis equipment and the stability of the electrolysis process. The sodium chloride raw material with excessive moisture needs to be dried at high temperature before electrolysis. The problem is that for sodium metal production enterprises, the amount of sodium chloride raw material is large, and the moisture content of raw materials provided by different raw material suppliers or different batches fluctuates greatly. It is almost impossible to test all of them. Even if artificial sampling is used, it is very time-consuming and labor-intensive. Artificial sampling is greatly affected by human factors, which affects the credibility of the test results and makes it difficult to guide the parameter setting of the subsequent drying process. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a sodium chloride raw material on-line humidity detection device. The sodium chloride raw material on the conveying belt is automatically sampled, which saves labor, avoids human factor interference, and the test results can be directly used to guide the parameter setting of the drying process. In addition, automatic sampling can be realized without stopping the conveying belt, which does not affect the production efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a sodium chloride raw material on-line humidity detection device, comprising a first belt conveyor and a second belt conveyor; a cylinder frame is fixedly arranged at the intersection of the first belt conveyor and the second belt conveyor; a dropping cylinder is fixedly connected to the cylinder frame; the upper end of the dropping cylinder is connected to a material inlet, which is opposite to the output end of the first belt conveyor, and the lower end of the dropping cylinder is connected to a material outlet, which is opposite to a material receiving hopper of the second belt conveyor; a flow divider is fixedly arranged on the side wall of the material inlet; the outlet of the flow divider is opposite to the material inlet of a storage bin; a first plug valve is arranged on the flow divider; the storage bin is fixedly connected to a frame, and an electric heating coil is arranged on the outer wall of the storage bin for heating the storage bin; the outlet end of a discharge pipe fixedly connected to the lower end of the storage bin faces the second belt conveyor, so that the material discharged from the storage bin falls on the second belt conveyor; a second plug valve is arranged on the discharge pipe; the lower end of the frame is connected to a weighing platform.

[0005] As a further optimization, the outer wall of the storage bin is wrapped with a thermal insulation layer, and the electric heating coil is located in the thermal insulation layer and closely attached to the outer wall of the storage bin.

[0006] As a further optimization, a rotating shaft is inserted into the center of the top of the storage silo; the top of the rotating shaft is connected to a motor fixed to the frame to drive the rotating shaft to rotate; the lower end of the rotating shaft extends into the interior of the storage silo and is fixed to a stirring rod.

[0007] As a further optimization, a spiral blade is also fixedly connected to the rotating shaft inside the storage bin.

[0008] As a further optimization, multiple columns are fixedly connected to the lower part of the weighing platform to suspend the weighing platform above the second belt conveyor; an electrical control box is fixedly connected to one of the columns; the motor, the first gate valve, and the second gate valve are all electrically connected to the electrical control box for controlling the operation of the motor, the first gate valve, and the second gate valve through the electrical control box; the electrical control box is electrically connected to the weighing platform for transmitting the weighing data acquired by the weighing platform to the electrical control box; the electrical control box is equipped with a display screen for displaying the weighing data.

[0009] As a further optimization, the controller in the electrical control box is pre-programmed with a control program for automatically controlling the operation of the motor, the first gate valve, and the second gate valve; the electrical control box is equipped with a wireless transmission module for wirelessly transmitting the weighing data to the rear monitoring platform.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0011] (1) The setting of the diversion tube and the first gate valve enables the device to automatically sample, saving manpower and avoiding human interference; and it can work for a long time, with a large number of samplings and high reliability of the humidity data.

[0012] (2) The waste material after testing is returned to the belt conveyor, which avoids waste material recycling and enables the belt conveyor to run continuously, thereby improving production efficiency.

[0013] (3) Drying and weighing are performed automatically, and the detection steps do not require human intervention, avoiding interference from human factors and making humidity detection more reliable.

[0014] In summary, this invention can automatically sample and inspect the moisture content of sodium chloride raw materials running on the conveyor belt, allowing the conveyor belt to run continuously without stopping, saving manpower and increasing efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model.

[0016] Figure 2 for Figure 1 A magnified view of a portion of the image.

[0017] The technical features and reference numerals in the figure are explained as follows: First belt conveyor 1; Second belt conveyor 2; Receiving hopper 21; Cylindrical frame 3; Drop cylinder 31; Receiving port 32; Diverter pipe 33; First gate valve 34; Storage bin 4; Electric heating coil 41; Discharge pipe 42; Second gate valve 43; Insulation layer 44; Rotating shaft 45; Agitator rod 46; Spiral blade 47; Motor 48; Frame 5; Weighing platform 6; Column 61; Electrical control box 62. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Example 1, please refer to Figures 1-2 .

[0020] This embodiment provides an online humidity detection device for sodium chloride raw materials, including a first belt conveyor 1 and a second belt conveyor 2; a cylinder frame 3 is fixed at the junction of the first belt conveyor 1 and the second belt conveyor 2; a discharge cylinder 31 is fixedly connected to the cylinder frame 3; the upper end receiving port 32 of the discharge cylinder 31 is directly opposite the output end of the first belt conveyor 1, and its lower end discharge port is directly opposite the receiving hopper 21 of the second belt conveyor 2; a diversion pipe 33 is fixed on the side wall of the receiving port 32; the diversion pipe... The outlet of pipe 33 is directly opposite the inlet of storage silo 4; a first gate valve 34 is provided on the diversion pipe 33; the storage silo 4 is fixed in the frame 5, and an electric heating coil 41 is provided on its outer wall for heating the storage silo 4; the end of the discharge pipe 42 fixed to the lower end of the storage silo 4 faces the second belt conveyor 2, so that the material discharged from the storage silo 4 falls on the second belt conveyor 2; a second gate valve 43 is provided on the discharge pipe 42; the lower end of the frame 5 is connected to the weighing platform 6.

[0021] In operation, the first gate valve 34 is normally closed, and the sodium chloride particles from the first belt conveyor 1 are transferred to the second belt conveyor 2 via the discharge cylinder 31. At this time, the first weight value obtained by the weighing platform 6 is the sum of the masses of the frame 5 and the storage bin 4. When the first gate valve 34 is opened, some sodium chloride particles are diverted to the storage bin 4, and then the first gate valve 34 is closed. At this time, the second weight value obtained by the weighing platform 6 minus the first weight value is the weight of the sodium chloride particles. Then, the electric heating coil 41 is energized to heat and dry the sodium chloride particles in the storage bin 4, causing the moisture to evaporate. The evaporated moisture is discharged from the inlet of the storage bin 4. After a period of time, the weighing platform 6 weighs again. The difference between the third weight value obtained by the weighing platform 6 and the second weight value is the moisture discharged from the sodium chloride particles in the storage bin 4. The humidity value of the sodium chloride particles diverted to the storage bin 4 can be obtained by calculation, which is the humidity value of the sample obtained when the first gate valve 34 is open. Finally, open the second gate valve 43 to discharge the material from the storage silo 4 to the second belt conveyor 2. Repeat the above steps to intermittently sample and test the moisture content of the sodium chloride raw material conveyed by the belt. This eliminates the need for manual sampling, saving manpower, avoiding human interference, and allows for continuous sampling and testing while the belt conveyor is operating, without interrupting its operation or affecting production efficiency.

[0022] In order to keep the storage bin 4 warm and save the energy consumption of the electric heating coil 41, the outer wall of the storage bin 4 is wrapped with an insulation layer 44, and the electric heating coil 41 is located in the insulation layer 44 and is in close contact with the outer wall of the storage bin 4.

[0023] To ensure uniform heating of the material within the storage silo 4, a rotating shaft 45 is inserted into the center of the top of the storage silo 4. The top of the rotating shaft 45 is connected to a motor 48 fixed to the frame 5 to drive the rotating shaft 45 to rotate. The lower end of the rotating shaft 45 extends into the interior of the storage silo 4 and is fixedly connected to a stirring rod 46. Under the stirring of the stirring rod 46, the material within the storage silo 4 makes more thorough contact with the silo wall, resulting in more uniform heating and faster moisture evaporation.

[0024] To improve the mixing effect, a spiral blade 47 is fixedly connected to the rotating shaft 45 inside the storage silo 4. When the spiral blade 47 rotates, it stirs the material at the bottom of the storage silo 4 to the upper layer, causing the sodium chloride particles to tumble up and down, resulting in more even and thorough heating. Combined with the stirring rod 46, this helps to remove water vapor from the sodium chloride particles, shortening the drying time.

[0025] For ease of operation, multiple columns 61 are fixedly connected to the lower part of the weighing platform 6, suspending the weighing platform 6 above the second belt conveyor. An electrical control box 62 is fixedly connected to one of the columns 61. The motor 48, the first gate valve 34, and the second gate valve 43 are all electrically connected to the electrical control box, allowing the control box 62 to operate these components. The electrical control box 62 is also electrically connected to the weighing platform 6, transmitting the weighing data acquired by the platform to it. A display screen on the control box 62 shows the weighing data. Therefore, a single operator can control the device for sampling and testing via the control box 62, saving effort and providing convenience.

[0026] To further improve automation and achieve unmanned operation, the controller in the electrical control box 62 is pre-programmed with a control program to automatically control the operation of the motor 48, the first gate valve 34, and the second gate valve 43. The electrical control box 62 is also equipped with a wireless transmission module for wirelessly transmitting the weighing data to the monitoring platform. Therefore, no personnel are required to be on-site at the sampling site; automatic sampling and testing, and automatic data transmission, significantly reduce manpower and increase efficiency. Furthermore, the monitoring platform can use the acquired sampling humidity data to guide the subsequent drying process of the sodium chloride raw material, adjusting parameters such as the drying temperature and time.

[0027] The advantages of this embodiment are as follows.

[0028] (1) The setting of the diversion pipe 33 and the first gate valve 34 enables the device to automatically sample, save manpower and avoid human interference; and it can work for a long time, sample more times, and detect humidity data with high reliability.

[0029] (2) The waste material after testing is returned to the belt conveyor, which avoids waste material recycling and enables the belt conveyor to run continuously, thereby improving production efficiency.

[0030] (3) Drying and weighing are performed automatically, and the detection steps do not require human intervention, avoiding interference from human factors and making humidity detection more reliable.

[0031] In summary, this embodiment can automatically sample and check the moisture content of sodium chloride raw materials running on the conveyor belt. The conveyor belt can run continuously without stopping, saving manpower and increasing efficiency.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An online humidity detection device for sodium chloride raw materials, comprising a first belt conveyor (1) and a second belt conveyor (2); a frame (3) is fixedly provided at the junction of the first belt conveyor (1) and the second belt conveyor (2); characterized in that: The feed cylinder (31) is fixedly connected to the frame (3); the receiving port (32) at the upper end of the feed cylinder (31) is directly opposite the output end of the first belt conveyor (1), and the discharge port at its lower end is directly opposite the receiving hopper (21) of the second belt conveyor (2); a diversion pipe (33) is fixedly installed on the side wall of the receiving port (32); the outlet of the diversion pipe (33) is directly opposite the inlet of the storage bin (4); a first slide valve (34) is provided on the diversion pipe (33). The storage bin (4) is fixed in the frame (5), and its outer wall is provided with an electric heating coil (41) for heating the storage bin (4); the end of the discharge pipe (42) fixed at the lower end of the storage bin (4) is directly opposite the second belt conveyor (2); a second slide valve (43) is provided on the discharge pipe (42); the lower end of the frame (5) is connected to the weighing platform (6).

2. The online humidity detection device for sodium chloride raw materials according to claim 1, characterized in that: The outer wall of the storage bin (4) is covered with an insulation layer (44), and the electric heating coil (41) is located in the insulation layer (44) and is in close contact with the outer wall of the storage bin (4).

3. The online humidity detection device for sodium chloride raw materials according to claim 1, characterized in that: A rotating shaft (45) is inserted into the center of the top of the storage bin (4); the top of the rotating shaft (45) is connected to a motor (48) fixed on the frame (5) to drive the rotating shaft (45) to rotate; the lower end of the rotating shaft (45) extends into the storage bin (4) and is fixedly connected to a stirring rod (46).

4. The online humidity detection device for sodium chloride raw materials according to claim 3, characterized in that: Inside the storage bin (4), a spiral blade (47) is also fixedly connected to the rotating shaft (45).

5. The online humidity detection device for sodium chloride raw materials according to claim 3, characterized in that: The weighing platform (6) is fixedly connected to multiple columns (61) at its lower part, which is used to suspend the weighing platform (6) above the second belt conveyor (2); an electrical control box (62) is fixedly connected to one of the columns (61); the motor (48), the first gate valve (34), and the second gate valve (43) are all electrically connected to the electrical control box (62), which is used to control the operation of the motor (48), the first gate valve (34), and the second gate valve (43) through the electrical control box (62); the electrical control box (62) is electrically connected to the weighing platform (6), which is used to transmit the weighing data acquired by the weighing platform (6) to the electrical control box (62); the electrical control box (62) is equipped with a display screen.

6. The online humidity detection device for sodium chloride raw materials according to claim 5, characterized in that: The controller inside the electrical control box (62) is pre-programmed with a control program for automatically controlling the operation of the motor (48), the first gate valve (34), and the second gate valve (43); the electrical control box (62) is equipped with a wireless transmission module for wirelessly transmitting the weighing data to the rear monitoring platform.

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