A kind of can prevent dust superfine mineral slag micro powder's canning device

Abstract

The utility model discloses a can prevent the superfine mineral slag micro powder's device of canking, including support platform and the bin of setting on support platform, the support leg of bin is provided with pressure sensor between support platform table top, and the lower end of the lower outlet pipe of bin bottom is connected with telescopic pipe after passing through support platform, is provided with solenoid valve on the lower outlet pipe, and the lower end of telescopic pipe is connected with lifting pipe, and is provided with lifting cylinder between lower outlet pipe and lifting pipe, and the outer wall on the lower part of lifting pipe is provided with annular gasbag, is provided with air pump on support platform, and the top of gasbag is communicated with air pump through air hose, and is provided with exhaust pipe on the lifting pipe above gasbag. Above all, the utility model has the advantages of accurate discharging quantity, less environmental pollution and good applicability.

Description

Technical Field

[0001] This utility model relates to the technical field of slag powder canning equipment, specifically to a canning device for ultrafine slag powder that can prevent dust generation. Background Technology

[0002] Ultrafine slag powder is a very fine powder material with characteristics such as easy dust generation, easy moisture absorption, and variable flowability. Its main components are silicon dioxide, aluminum oxide, and calcium oxide. It has high activity, so when it is mixed into cement concrete, it can react with carbon sulfide in cement and calcium hydroxide generated by hydrolysis to further generate calcium silicate hydrate products, thereby filling the pores in cement concrete, improving the density of cement concrete, and improving the performance of cement concrete.

[0003] Ultrafine slag powder needs to be canned and loaded onto trucks before transportation. However, the following problems often exist during canning: First, the canning volume is prone to error, meaning the amount of material fed is difficult to control precisely, resulting in poor performance. Second, during the canning process, air inside the truck is displaced by the material, and due to the extremely fine particle size, a large amount of dust is easily generated, polluting the surrounding environment and causing material waste. Third, most existing canning devices can only be used for canning inlets of the same size, while the inlet sizes of various canning trucks differ, leading to low applicability of the canning devices and failing to meet canning requirements effectively. Therefore, it is objectively necessary to develop a canning device for ultrafine slag powder that offers precise feeding, low environmental pollution, good applicability, and dust prevention. Utility Model Content

[0004] The purpose of this invention is to provide a canning device for ultrafine slag powder that is precise in feeding, causes less environmental pollution, has good applicability, and can prevent dust generation.

[0005] The purpose of this utility model is achieved as follows: it includes a support platform and a hopper set on the support platform. A pressure sensor is installed between the support legs of the hopper and the support platform surface. The lower end of the feed pipe at the bottom of the hopper passes through the support platform and is connected to a telescopic pipe. A solenoid valve is installed on the feed pipe. A lifting pipe is connected to the lower end of the telescopic pipe. A lifting cylinder is installed between the feed pipe and the lifting pipe. An annular airbag is installed on the outer wall of the lower part of the lifting pipe. An air pump is installed on the support platform. The top of the airbag is connected to the air pump through a ventilation hose. An exhaust pipe is installed on the lifting pipe above the airbag.

[0006] Furthermore, an exhaust fan and a dust collector are connected in sequence to the exhaust pipe, and the dust discharge port of the dust collector is connected to the riser pipe through a pipeline.

[0007] Furthermore, a positioning cover is installed on the lifting tube above the airbag.

[0008] Furthermore, a ring-shaped rubber pad is provided on the lower port of the positioning cover.

[0009] Furthermore, a telescopic guide rod is installed between the feeding pipe and the lifting pipe.

[0010] Furthermore, the feed pipe includes an upper part and a lower part, which are connected by flanges and studs.

[0011] This invention relates to the loading of ultrafine slag powder into a tanker truck. The process involves loading the ultrafine slag powder from a silo into a tanker truck. The procedure is as follows: First, the ultrafine slag powder is loaded into the silo. A pressure sensor detects the pressure of the silo and the ultrafine slag powder, thus obtaining the initial total weight of the silo and the ultrafine slag powder. Then, the tanker truck is driven under the silo, and the lifting cylinder is activated. The piston rod of the lifting cylinder extends downwards, and the telescopic tube extends, driving the lifting tube downwards until its lower end reaches the tanker truck's inlet. When the predetermined position is reached, the lifting cylinder is stopped, and the air pump is activated. The air pump inflates the airbag until its perimeter is tightly against the tanker truck's inlet. At this point, a seal is formed between the airbag and the tanker truck's inlet. The air pump is shut off, and the solenoid valve is opened. The ultrafine slag powder in the hopper passes through the discharge pipe, telescopic pipe, and lifting pipe in sequence before falling into the tanker truck. During the discharge process, the pressure value detected by the pressure sensor is monitored in real time to obtain the real-time total weight of the hopper and the ultrafine slag powder after discharge. When the difference between the initial total weight and the real-time total weight is the required discharge weight, the solenoid valve is shut off, and the addition of material to the tanker truck is stopped. The air pump draws gas from the airbag, causing the airbag to contract and separate from the tanker truck's inlet. The lifting cylinder then moves the lifting pipe upward to reset, thus completing one filling of ultrafine slag powder into the tanker. During the aforementioned operation, the total amount of ultrafine slag powder loaded in the tanker is monitored in real time by a pressure sensor, enabling precise control of the material discharge from the hopper and significantly reducing filling errors. This avoids both overfilling, which leads to overflow and waste of ultrafine slag powder, and underfilling, which results in insufficient filling. Secondly, addressing the issue of dust escaping from the tanker during the filling process, an airbag structure is incorporated. This airbag seals the tanker's inlet, and the air inside the tanker is replaced by the ultrafine slag powder, preventing further escape and minimizing dust generation. The air enters the exhaust pipe along with the air and is discharged into the system's dust removal device for unified dust removal and purification, effectively preventing the escape of dust during the canning process, thus avoiding environmental pollution and material waste. Furthermore, the airbag inflates, and the inflation and expansion amounts can be determined according to the size of the tank truck's inlet, ensuring a tight seal between the airbag and the inlet. This allows the device to be used with different tank trucks and inlet sizes, expanding its applicability and improving its suitability. In summary, this invention has the advantages of precise material dispensing, minimal environmental pollution, and good applicability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] In the diagram: 1-Support platform, 2-Hopper, 3-Outrigger, 4-Pressure sensor, 5-Discharge pipe, 6-Telescopic pipe, 7-Solenoid valve, 8-Lifting pipe, 9-Lifting cylinder, 10-Airbag, 11-Air pump, 12-Ventilation hose, 13-Exhaust pipe, 14-Exhaust fan, 15-Dust collector, 16-Positioning cover, 17-Rubber pad, 18-Telescopic guide rod, 19-Flange, 20-Tank truck, 21-Inlet. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings, but this description is not intended to limit the present invention in any way. Any changes or improvements made based on the present invention shall fall within the protection scope of the present invention.

[0015] like Figure 1 As shown, this utility model includes a support platform 1 and a hopper 2 set on the support platform 1. The support platform 1 is existing technology and generally includes a bracket and a platform on the bracket. A pressure sensor 4 is set between the support leg 3 of the hopper 2 and the platform surface of the support platform 1. The pressure sensor 4 is an existing instrument used to detect the total weight of the hopper 2, ultrafine slag powder, feed pipe 5 and other components. The lower end of the feed pipe 5 at the bottom of the hopper 2 passes through the support platform 1 and is connected to a telescopic pipe 6. A solenoid valve 7 is set on the feed pipe 5. The lower end of the telescopic pipe 6 is connected to a lifting pipe 8. A lifting cylinder 9 is set between the feed pipe 5 and the lifting pipe 8. An annular airbag 10 is set on the outer wall of the lower part of the lifting pipe 8. An air pump 11 is set on the support platform 1. The top of the airbag 10 is connected to the air pump 11 through a ventilation hose 12. An exhaust pipe 13 is set on the lifting pipe 8 above the airbag 10.

[0016] This utility model is used for loading ultrafine slag powder into tankers. The ultrafine slag powder in silo 2 is loaded into tanker truck 20. The operation process is as follows: First, the ultrafine slag powder is loaded into silo 2. Pressure sensor 4 senses the pressure of silo 2 and the ultrafine slag powder to obtain the initial total weight of silo 2 and the ultrafine slag powder. Then, tanker truck 20 is driven under silo 2, and lifting cylinder 9 is activated. The piston rod of lifting cylinder 9 extends downwards, and telescopic tube 6 extends, driving lifting tube 8 downwards until the lower end of lifting tube 8 extends into the inlet 21 of tanker truck 20. When the predetermined position is reached, lifting cylinder 9 is stopped, and air pump 11 is activated. Air pump 11 inflates air into airbag 10, causing airbag 10 to bulge until its periphery is tightly against the inlet 21 of tanker truck 20. At this point, the airbag 10 and the inlet 21 of the tank truck 20 are sealed. The air pump 11 is turned off and the solenoid valve 7 is turned on. The ultrafine slag powder in the silo 2 passes through the discharge pipe 5, the telescopic pipe 6 and the lifting pipe 8 in sequence and falls into the tank truck 20. During the discharge process, the pressure value detected by the pressure sensor 4 is monitored in real time to obtain the real-time total weight of the silo 2 and the ultrafine slag powder after discharge. When the difference between the initial total weight and the real-time total weight is the required discharge weight, the solenoid valve 7 is turned off and the feeding into the tank truck 20 is stopped. The air pump 11 draws gas from the airbag 10, causing the airbag 10 to contract. The airbag 10 separates from the inlet 21 of the tank truck 20 and the lifting pipe 8 is moved up and reset by the lifting cylinder 9, thus completing one canning of ultrafine slag powder.

[0017] During the above operation, the total amount of ultrafine slag powder loaded in tank truck 20 is monitored in real time by pressure sensor 4, which can accurately control the amount of material discharged from hopper 2, greatly reducing the error in the filling amount. This avoids both overfilling, which would cause overflow and waste of ultrafine slag powder, and underfilling, which would result in the filling amount not meeting requirements, demonstrating good performance. Secondly, to address the problem of dust escaping from tank truck 20 during the current filling process, an airbag structure 10 is installed. The airbag 10 seals the inlet 21 of tank truck 20. After the air inside tank truck 20 is replaced by ultrafine slag powder, it is not easy for the dust to escape, and the generated dust will be carried away with the powder. The air enters the exhaust pipe 13 along with the air, and is discharged into the system dust removal device through the exhaust pipe 13 for unified dust removal and purification treatment, effectively preventing the escape of dust during the canning process, ensuring that the surrounding environment is not polluted and preventing material waste. In addition, the airbag 20 expands after inflation, and the inflation and expansion amounts can be determined according to the size of the tank truck 20 inlet 21, so that the airbag 10 is tightly fitted to the tank truck 20 inlet 21 to achieve a seal. In this way, the device can also be used for different tank trucks 20 with different inlet 21 sizes, expanding the scope of application of the device and improving its applicability.

[0018] A blower 14 and a dust collector 15 are connected sequentially to the exhaust pipe 13. The dust outlet of the dust collector 15 is connected to the lifting pipe 8 through a pipeline. The blower 14 and the dust collector 15 are existing equipment. The blower 14 is used to extract the dust generated inside the tank truck 20, while the dust collector 15 is used to remove and purify the dust, improve the dust removal efficiency, and return the dust obtained from the dust removal to the lifting pipe 8, which then falls into the tank truck 20, preventing material waste and a reduction in the loading capacity of the tank truck 20.

[0019] A positioning cover 16 is installed on the lifting pipe 8 above the airbag 10. During the use of this utility model, it was found that after a period of use, the outer wall of the airbag 10 may experience some wear, reducing the sealing performance between the airbag 10 and the inlet 21, resulting in a small amount of dust escaping. Secondly, when operating the lifting pipe 8 to move down into the inlet 21, it is necessary to precisely control the height of the lifting pipe 8 to ensure that the airbag 10 is located at the position of the inlet 21. This operation is somewhat difficult and cumbersome, and it is also easy to make operational errors, causing the airbag 10 to be too low or too high, which will affect the normal use of the device. However, after installing the positioning cover 16, when the lifting pipe 8 moves down, the positioning cover 16 moves down synchronously. As the lifting pipe 8 continuously extends into the inlet 21, when the lower end of the positioning cover 16 abuts against the outer wall of the tank truck 20, the position of the lifting pipe 8 is fixed and cannot move down further, indicating that the height of the lifting pipe 8 has reached the predetermined position, and at this time the airbag 10 is also located at the position of the inlet 21. Through the above method, the operation difficulty of the device can be reduced and the filling efficiency can be improved.

[0020] An annular rubber gasket 17 is provided on the lower end of the positioning cover 16. In actual use, it was found that a certain gap exists between the positioning cover 16 and the surface of the tank truck 20. The main reasons for this gap are as follows: First, because tank trucks 20 vary in size, while the bottom shape of the positioning cover 16 is fixed, when the tank truck 20 is replaced, a mismatch inevitably occurs between the lower end of the positioning cover 16 and the outer wall of the tank truck 20, resulting in a gap. Second, the contact between the positioning cover 16 and the tank truck 20 is mostly rigid; under insufficient pressure, the sealing effect is not good. This will cause dust leakage. In view of the above two points, when dust enters the positioning cover 16, it will still escape from the gap mentioned above, causing certain environmental pollution. In order to prevent dust from escaping, a rubber gasket 17 is set. The rubber gasket 17 has a certain degree of flexibility. To meet the requirements of adaptability, the thickness of the rubber gasket 17 can be appropriately increased. When in use, the rubber gasket 17 can deform and thus fit tightly against the surface of the tank truck 20, greatly improving the sealing performance. Secondly, compared with rigid contact, the rubber gasket 17 has better sealing performance with the tank truck 10, which can effectively eliminate gaps and prevent dust from escaping.

[0021] A telescopic guide rod 18 is provided between the feeding pipe 5 and the lifting pipe 8. The telescopic guide rod 18 is existing technology and can be freely extended and retracted. In this utility model, it is installed between the feeding pipe 5 and the lifting pipe 8 to guide the lifting pipe 8 when it moves up and down, so that the lifting pipe 8 can move vertically up and down. In particular, it prevents the lifting pipe 8 from tilting during the downward movement, so that the lifting pipe 8 can accurately extend into the inlet 21 of the tank truck 20 and avoid the problem of collision caused by misalignment between the two.

[0022] The feeding pipe 5 consists of an upper part and a lower part, which are connected by a flange 19 and studs. In order to facilitate the installation and maintenance of the device, the feeding pipe 5 is set into two parts, an upper part and a lower part, which are connected by a flange 19. Disassembly and assembly can be performed simply by tightening or loosening the bolts and nuts.

Claims

1. A kind of ultra-fine mineral slag micro-powder can prevent dust canning device, including support table (1) and the bunker (2) being set on support table (1), it is characterized by: A pressure sensor (4) is installed between the support leg (3) of the hopper (2) and the table surface of the support platform (1). The lower end of the feed pipe (5) at the bottom of the hopper (2) passes through the support platform (1) and is connected to a telescopic pipe (6). A solenoid valve (7) is installed on the feed pipe (5). A lifting pipe (8) is connected to the lower end of the telescopic pipe (6). A lifting cylinder (9) is installed between the feed pipe (5) and the lifting pipe (8). An annular airbag (10) is installed on the outer wall of the lower part of the lifting pipe (8). An air pump (11) is installed on the support platform (1). The top of the airbag (10) is connected to the air pump (11) through a ventilation hose (12). An exhaust pipe (13) is installed on the lifting pipe (8) above the airbag (10).

2. The device for packing the superfine slag powder capable of preventing dust raising according to claim 1, wherein: The exhaust pipe (13) is connected in sequence to a blower (14) and a dust collector (15), and the dust outlet of the dust collector (15) is connected to the riser pipe (8) through a pipeline.

3. The device for packing the superfine slag powder capable of preventing dust raising according to claim 1, wherein: A positioning cover (16) is provided on the lifting tube (8) above the airbag (10).

4. The device for filling a tank with superfine slag powder capable of preventing dust raising according to claim 3, characterized in that: An annular rubber pad (17) is provided on the lower port of the positioning cover (16).

5. The device for packing the superfine slag powder capable of preventing dust raising according to claim 1, wherein: A telescopic guide rod (18) is provided between the feeding pipe (5) and the lifting pipe (8).

6. The device for packing the superfine slag powder capable of preventing dust raising according to claim 1, wherein: The feed pipe (5) includes an upper part and a lower part, which are connected by a flange (19) and a stud.

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