Explosion-proof and moisture-proof conveying system

Abstract

The utility model discloses an explosion-proof and moisture-proof conveying system which comprises a connecting pipe, a dust collecting pipe, a balance pipe, a working part, a first fan, a second fan, a protective gas generator and a dust removing part, and is characterized in that the balance pipe is connected with a plurality of integrated pipes, and blind plates are arranged at the bottoms of the integrated pipes; the dust removal part comprises an equipment breathing opening, a quick coupler, a filter element and a closed dust collection cover, the equipment breathing opening is connected with the filter element through the quick coupler, and the closed dust collection cover is arranged outside the filter element; according to the conveying system, protective gas is used, a protective gas online analyzer is arranged, the explosion risk of flammable and explosive dust is reduced, and the safety degree of the system is greatly improved; exhaust air of the fan for providing power circulates in the system, no extra fresh gas needs to be supplemented, the risk that materials absorb moisture due to the fact that the humidity of the surrounding environment is large is reduced, the original moisture content of the materials is guaranteed to the maximum degree, and the effect on the materials prone to absorbing moisture is extremely good.

Description

Technical Field

[0001] This utility model belongs to the field of dust crushing technology, and more specifically, it relates to an explosion-proof and moisture-proof conveying system. Background Technology

[0002] In the national production sector, dust crushing and screening is a crucial step in many industries, including mining, chemicals, pharmaceuticals, food, and beverages. While some demanding industries may employ high-precision assembly lines, current technology often involves open-air or air-exposed conveying processes. These methods generally present several problems:

[0003] 1. During crushing, screening, and conveying, combustible dust comes into contact with air to form a combustible mixture, which may explode when exposed to high temperatures, open flames, static electricity, or other ignition sources.

[0004] 2. During material conveying, foreign objects and moisture from the air are drawn in. Improper control of material humidity can cause dust to accumulate and bridge in the pipeline, resulting in blockages and affecting production efficiency.

[0005] 3. Inadequate sealing during transport leads to dust leakage, causing environmental pollution and endangering the health of operators. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides an explosion-proof and moisture-proof conveying system.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] An explosion-proof and moisture-proof conveying system includes a connecting pipe, a dust collection pipe, a balancing pipe, a working section, a first fan, a second fan, a protective gas generator, and a dust removal section. The balancing pipe is connected to multiple integrated pipes, and the bottom of the integrated pipes is provided with a blind plate.

[0009] The dust removal unit includes an equipment breather, a quick-connect coupling, a filter element, and a sealed dust collection hood. The equipment breather is connected to the filter element via a quick-connect coupling, and the filter element is provided with a sealed dust collection hood.

[0010] The working unit includes a first feeder, a second feeder, a crushing and screening machine, and a hopper. The feed inlet of the second feeder is connected to the hopper via a pipe, and the air outlet of the second fan is connected to the feed inlet of the second feeder. The air outlet of the first fan is connected to the feed inlet of the first feeder, and the discharge outlet of the first feeder is connected to the crushing and screening machine. A hopper is also provided at the bottom of the crushing and screening machine, and the discharge outlet at the bottom of the hopper is connected to the feed inlet of the second feeder via a connecting pipe.

[0011] The dust removal unit is installed on the side wall of the first and second feeders, and the dust removal unit is also installed on the top of the silo. The sealed dust collection hood collects the dust into the dust collection pipe through the connecting pipe.

[0012] The protective gas generator is connected to the integrated pipe that connects to the dust removal section on the side wall of the first feeder via a connecting pipe. The connecting pipe is equipped with a protective gas replenishment valve.

[0013] This utility model discloses an explosion-proof and moisture-proof conveying system. The air inlets of the first fan and the second fan are both connected to the balance pipe through air inlet pipes. The air inlet pipes are equipped with heat exchangers, check valves and protective gas analyzers at different distances from the balance pipes, from the shortest distance to the longest distance.

[0014] This utility model discloses an explosion-proof and moisture-proof conveying system. The balance pipe is connected to an integrated pipe through a connecting pipe. The integrated pipe has a blind plate at the bottom and is connected to the filter element at the top through a quick-connect coupling. An exhaust valve is provided on the connecting pipe.

[0015] This utility model discloses an explosion-proof and moisture-proof conveying system, wherein the integrated pipe connected to the dust removal part on the side wall of the first feeder and the connecting pipe at the bottom of the silo are connected through the dust removal part.

[0016] This utility model discloses an explosion-proof and moisture-proof conveying system, wherein a pressure gauge is provided at the top of the balance pipe.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. This conveying system uses protective gas and is equipped with an online protective gas analyzer, which reduces the risk of flammable and explosive dust explosions and greatly improves the system's safety.

[0019] 2. The exhaust fan provides power and circulates within the system, eliminating the need for additional fresh gas. This reduces the risk of materials absorbing moisture due to high ambient humidity, maximizing the preservation of the original moisture content of the materials, and is extremely effective for materials that are prone to absorbing moisture.

[0020] 3. In this solution, the exhaust air from the fan that provides power returns to the air inlet of the equipment through the balance pipe. The gas circulates inside the equipment, and there is no gas exhaust. The dust circulates within the system, which solves the problem of dust hazard to the human body and meets environmental protection requirements.

[0021] 4. The dust generated by this conveying device is digested within the system and collected at fixed points in the dust collection pipe, thereby improving product yield and economic benefits.

[0022] 5. The system is flexible and reliable, highly automated, easy to operate, and allows for the arbitrary start and stop of individual equipment.

[0023] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0024] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0025] Figure 1 This is a schematic diagram of the present invention;

[0026] The following are marked in the diagram: 1. Equipment breather; 2. Quick-connect coupling; 3. Filter element; 4. Sealed dust collection hood; 5. Connecting pipe; 6. Dust collection pipe; 7. Balance pipe; 8. Blind flange; 9. Check valve; 10. Hose connection; 11. Protective gas supply valve; 12. Exhaust valve; 13. Protective gas analyzer; 14. Heat exchanger; 15. First feeder; 16. Crusher and screener; 17. Hopper; 18. First fan; 19. Protective gas generator; 20. Second fan; 21. Second feeder; 22. Pressure gauge. Detailed Implementation

[0027] The following description, with reference to the accompanying drawings, further details the specific implementation methods of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the function and working principle of each part, the manufacturing process, and the operation and use methods, so as to help those skilled in the art to have a more complete, accurate, and in-depth understanding of the utility model concept and technical solution.

[0028] An explosion-proof and moisture-proof conveying system includes a connecting pipe 5, a dust collection pipe 6, a balancing pipe 7, a working section, a first fan 18, a second fan 20, a protective gas generator 19, and a dust removal section. The balancing pipe 7 is connected to multiple integrated pipes 6, and the bottom of the integrated pipe 6 is provided with a blind plate 8.

[0029] The dust removal unit includes an equipment breather 1, a quick-connect connector 2, a filter element 3, and a sealed dust collection hood 4. The equipment breather 1 is connected to the filter element 3 through the quick-connect connector 2, and the filter element 3 is provided with a sealed dust collection hood 4.

[0030] The working section includes a first feeder 15, a second feeder 21, a crushing and screening machine 16, and a hopper 17. The feed inlet of the second feeder 21 is connected to the hopper 17 via a pipe, and the air outlet of the second blower 20 is connected to the feed inlet of the second feeder 21. The air outlet of the first blower 18 is connected to the feed inlet of the first feeder 15, and the discharge outlet of the first feeder 15 is connected to the crushing and screening machine 16. A hopper 17 is also provided at the bottom of the crushing and screening machine 16, and the discharge outlet at the bottom of the hopper 17 is connected to the feed inlet of the second feeder 21 via a connecting pipe.

[0031] The dust removal unit is installed on the side wall of the first feeder 15 and the second feeder 21. The dust removal unit is also installed on the top of the hopper 17. The sealed dust collection hood 4 collects the dust into the dust collection pipe 6 through the connecting pipe.

[0032] The protective gas generator 19 is connected to the integrated pipe 6, which is connected to the dust removal section on the side wall of the first feeder 15, via a connecting pipe. The connecting pipe is equipped with a protective gas replenishment valve 11.

[0033] The air inlets of the first fan 18 and the second fan 20 are both connected to the balance pipe 6 through air inlet pipes. The air inlet pipes are equipped with a heat exchanger 14, a check valve 9 and a protective gas analyzer 13 from the nearest to the farthest point from the balance pipe 6.

[0034] With the above settings: heat exchanger 14 cools and reuses the high-temperature gas compressed by the first fan 18 and the second fan 20, preventing the material temperature from being too high and affecting product quality; check valve 9 ensures that the circulating gas can only flow out from the fan outlet and will not flow back, ensuring more stable fan operation; protective gas analyzer 13 monitors the protective gas content in real time, and when the protective gas content reaches the critical value, the protective gas replenishment valve 11 is activated to replenish and replace the system, ensuring system reliability.

[0035] The balance pipe 7 is connected to an integrated pipe 6 via a connecting pipe. The integrated pipe 6 has a blind plate 8 at the bottom and is connected to the filter element 3 at the top via a quick-connect fitting 2. An exhaust valve 12 is provided on the connecting pipe.

[0036] The integrated pipe 6 connected to the dust removal section on the side wall of the first feeder 15 and the connecting pipe at the bottom of the hopper 17 are connected through the dust removal section.

[0037] With the above setup, the dust removal unit intercepts most of the dust inside the device, and the dust is recovered inside the equipment, while reducing the dust content in the dust collection pipe 6.

[0038] A pressure gauge 22 is installed at the top of the balance tube 7.

[0039] With the above settings, the pressure gauge 22 can monitor the air pressure in the balance tube 7 at any time and determine the pressure inside the device.

[0040] Working principle and method

[0041] After the crusher and screening machine 16 is started, the protective gas generator 19 is turned on, and the protective gas replenishment valve 11 is opened to fill the system with protective gas and purify the system. Once the system is properly purged, the exhaust valve 12 is closed, the protective gas generator 19 stops working, and the system enters normal operation. The outlet gas from the first fan 18 and the second fan 20 is returned to the first feeder 15, the second feeder 21, and the vent 1 of the hopper 17 after heat exchange in the heat exchanger 14. The material is transferred in a closed loop within the system, and each vent breathes autonomously. The air pressure is balanced in the main pipe, and the dust settles freely into the dust collection pipe 6. The blind flange 8 is opened periodically for cleaning and recycling. Through the coordinated operation of the above components, the protective gas carries the material and circulates in a closed loop within the system, avoiding environmental pollution and solving problems such as combustible dust explosions and material moisture absorption clogging the pipes.

[0042] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An explosion-proof and moisture-proof conveying system, comprising a connecting pipe, a dust collection pipe, a balancing pipe, a working section, a first fan, a second fan, a protective gas generator, and a dust removal section, characterized in that: The balance tube is connected to multiple integrated tubes, and a blind plate is provided at the bottom of the integrated tubes; The dust removal unit includes an equipment breather, a quick-connect coupling, a filter element, and a sealed dust collection hood. The equipment breather is connected to the filter element via a quick-connect coupling, and the filter element is provided with a sealed dust collection hood. The working unit includes a first feeder, a second feeder, a crushing and screening machine, and a hopper. The feed inlet of the second feeder is connected to the hopper via a pipe, and the air outlet of the second fan is connected to the feed inlet of the second feeder. The air outlet of the first fan is connected to the feed inlet of the first feeder, and the discharge outlet of the first feeder is connected to the crushing and screening machine. A hopper is also provided at the bottom of the crushing and screening machine, and the discharge outlet at the bottom of the hopper is connected to the feed inlet of the second feeder via a connecting pipe. The dust removal unit is installed on the side wall of the first and second feeders, and the dust removal unit is also installed on the top of the silo. The sealed dust collection hood collects the dust into the dust collection pipe through the connecting pipe. The protective gas generator is connected to the integrated pipe that connects to the dust removal section on the side wall of the first feeder via a connecting pipe. The connecting pipe is equipped with a protective gas replenishment valve.

2. The explosion-proof and moisture-proof conveying system according to claim 1, characterized in that, The air inlets of the first and second fans are connected to the balance pipe through air inlet pipes. The air inlet pipes are equipped with heat exchangers, check valves and protective gas analyzers at different distances from the balance pipes, from the shortest distance to the longest distance.

3. The explosion-proof and moisture-proof conveying system according to claim 1, characterized in that, The balance pipe is connected to an integrated pipe via a connecting pipe. The integrated pipe has a blind plate at the bottom and is connected to the filter element at the top via a quick-connect fitting. An exhaust valve is provided on the connecting pipe.

4. The explosion-proof and moisture-proof conveying system according to claim 1, characterized in that, The integrated pipe connected to the dust removal section on the side wall of the first feeder and the connecting pipe at the bottom of the hopper are connected through the dust removal section.

5. The explosion-proof and moisture-proof conveying system according to claim 1, characterized in that, A pressure gauge is installed at the top of the balance tube.

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