A smart and energy-saving material positive pressure conveying system

Abstract

The present invention provides an intelligent and energy-saving positive-pressure material conveying system, comprising a storage hopper, a conveying tank connected to its discharge end, an air supply device connected to its air inlet end, and a positive-pressure conveying device connected to its air outlet end; the air supply device comprising an air delivery assembly connected to the air inlet end of the conveying tank, an air storage tank connected to the air inlet end of the air delivery assembly, and an air compressor connected to the air inlet end of the air storage tank; the positive-pressure conveying device comprising a conveying pipe connected to the discharge end of the conveying tank via a flange, a discharge hopper connected to an end of the conveying pipe remote from the conveying tank, and a quantitative air delivery assembly sleeved on the outside of the conveying pipe. The present invention can guide the material and air to be fully mixed, reduce material blockage, thereby reducing energy consumption and improving environmental performance.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of material transportation, and specifically to an intelligent energy-saving material positive pressure transportation system. Background Art

[0002] Pneumatic conveying refers to a method of conveying granular materials along the direction of airflow in a closed pipe by utilizing the energy of airflow. It is a specific application of fluidization technology.

[0003] According to a kaolin positive pressure conveying system provided by the patent document with application number CN201922436607.5, the positive pressure conveying system includes a dust collector, a first screw conveyor, a second screw conveyor, a cyclone, a buffer silo, a Roots blower, a rotary feeder, and a silo; the feed end of the first screw conveyor is arranged at the bottom of the dust collector, the discharge end is arranged at the top of the feed end of the second screw conveyor, the cyclone is arranged at the top of the second screw conveyor, the discharge end of the second screw conveyor is fixed at the top of the buffer silo, the rotary feeder is arranged at the bottom of the buffer silo, and is connected to the Roots blower through an air inlet pipe, and the silo is connected to the rotary feeder through a conveying pipe. The positive pressure conveying system has a simple structure and adopts positive pressure conveying to avoid squeezing of materials during the conveying process, which can significantly improve the quality of the product.

[0004] The above-mentioned positive pressure conveying system has a simple structure and adopts positive pressure conveying to avoid squeezing of materials during the conveying process, which can significantly improve the quality of the product. However, when the high-pressure gas is introduced into the above-mentioned positive pressure conveying system, it is affected by the position of the air inlet and the air intake period, resulting in uneven mixing of the material and the gas, making the material prone to blockage during the conveying process, and then it is necessary to increase the power of the conveying system, resulting in high energy consumption. Summary of the Invention

[0005] The present invention mainly provides an intelligent energy-saving material positive pressure conveying system to solve the technical problems raised in the above background technology.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] A smart and energy-saving material positive pressure conveying system includes a storage hopper, a material discharge end of the storage hopper is connected to a conveying tank, an air inlet end of the conveying tank is connected to an air supply device, and an air outlet end of the conveying tank is connected to a positive pressure conveying device;

[0008] The air supply device includes an air delivery assembly connected to the air inlet end of the delivery tank, an air storage tank connected to the air inlet end of the air delivery assembly, and an air compressor connected to the air inlet end of the air storage tank;

[0009] The positive pressure conveying device includes a conveying pipe connected to the discharge end of the conveying tank through a flange, a discharge hopper connected to the end of the conveying pipe away from the conveying tank, and a quantitative air supply component sleeved on the outside of the conveying pipe, and a plurality of air inlet holes are provided at the bottom end of the conveying pipe;

[0010] The quantitative air delivery component includes a sealing cylinder sleeved on the outer surface of the material delivery pipe, an air inlet component fixed to the outer surface of the sealing cylinder and connected to the air outlet end of the air delivery component, and a flow control mechanism provided at the bottom end of the sealing cylinder. The flow control mechanism includes a separating ring connected to the inner wall of the sealing cylinder, and a rubber cover connected to the lower surface of the separating ring.

[0011] Furthermore, the gas delivery assembly includes a first gas delivery pipe and a second gas delivery pipe which are sequentially arranged on the gas storage tank shell from top to bottom. The end of the first gas delivery pipe away from the gas storage tank is connected to the top end of the conveying tank, and the gas outlet end of the second gas delivery pipe is connected to the bottom end of the conveying tank. The high-pressure gas flows into the conveying tank from the bottom end of the conveying tank, thereby utilizing the high-pressure gas entering the conveying tank from different positions so that the high-pressure gas can be fully mixed with the material.

[0012] Furthermore, the gas delivery component also includes a third gas delivery pipe and a fourth gas delivery pipe which are sequentially passed through the gas tank shell from top to bottom. The end of the third gas delivery pipe away from the gas tank is connected to the air intake component, and the end of the fourth gas delivery pipe away from the gas tank is connected to the discharge hopper. High-pressure air enters the discharge hopper through the fourth gas delivery pipe and mixes with the material inside the discharge hopper.

[0013] Furthermore, the air intake assembly includes an air intake box installed on the outer surface of the sealing cylinder, and multiple filter plates installed inside the air intake box. The high-pressure air is filtered through the filter plates to prevent impurities in the external air from corroding the components inside the sealing cylinder.

[0014] Furthermore, a plurality of air inlet holes are provided on the shell of the separation ring, and the plurality of air inlet holes are arranged around the axis of the separation ring. The separation ring guides high-pressure air to flow into the bottom space of the separation ring through the air inlet holes.

[0015] Furthermore, the quantitative air delivery component also includes an air release mechanism arranged on the outside of the sealing cylinder, and the air release mechanism includes a high-pressure air release valve penetrated through the bottom end of the sealing cylinder, and a three-way pipe connected to one end of the high-pressure air release valve extending to the outside. High-pressure air exceeding the threshold enters the three-way pipe through the high-pressure air release valve, and supplies air to the two air cylinders at the same time through the three-way pipe.

[0016] Furthermore, the quantitative air delivery assembly also includes a flow reduction mechanism penetrating the top of the sealing cylinder, the flow reduction mechanism includes an air cylinder connected to the air outlet end of the three-way pipe and installed on the upper surface of the sealing cylinder, the piston rod of the air cylinder extends to the interior of the sealing cylinder and is connected to a barrier ring, and the barrier ring is driven to descend by the extension and contraction of the air cylinder piston rod, so that the barrier ring blocks the air outlet of the air inlet box and reduces the high-pressure air flowing into the sealing cylinder.

[0017] Furthermore, the deflation mechanism also includes a termination column installed on the inner wall of the top end of the sealing tube and abutting against the upper surface of the barrier ring. The termination column blocks the barrier ring to prevent the barrier ring from moving upward due to the influence of the high-pressure air blown out by the air inlet box.

[0018] Furthermore, a humidity sensor is provided on the top shell of the conveying tank, and the humidity information inside the conveying tank is monitored by the humidity sensor.

[0019] Furthermore, a temperature sensor is provided on the top shell of the gas storage tank, and a plurality of electric heating copper tubes are installed inside the gas storage tank. When the humidity inside the delivery tank exceeds a set value, the temperature information inside the gas storage tank is detected by the temperature sensor.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] First, the material can be fully mixed with the air, reducing material blockage and thus reducing energy consumption. Specifically, the first air pipe flows into the conveying tank from the top of the conveying tank, and the high-pressure gas passes through the second air pipe, so that the high-pressure gas flows into the conveying tank from the top and bottom of the conveying tank respectively, so that the high-pressure gas can be fully mixed with the material to form a suspended substance.

[0022] Secondly, the gas enters the air intake box through the third air supply pipe, and the high-pressure air inside the air intake box enters the sealing cylinder. Since the sealing cylinder is divided into two spaces by the separating ring, the high-pressure air flows into the bottom space of the separating ring, and then the high-pressure air lifts the other end of the rubber cover to allow the high-pressure air to flow along the air intake hole of the feed pipe and mix with the material in the feed pipe. Since there are multiple air intake holes in the feed pipe, the high-pressure air flows into the feed pipe from multiple angles and mixes with the material to form a more evenly mixed suspension.

[0023] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 A top view of the present invention;

[0026] Figure 3 for Figure 2 Sectional view along line AA;

[0027] Figure 4 Schematic diagram of the structure of the separator ring of the present invention;

[0028] Figure 5 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 6 It is a rear view of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the hopper and the conveying tank of the present invention;

[0031] Figure 8 for Figure 3 A magnified view of the structure of area A.

[0032] In the figure: 10, storage hopper; 20, conveying tank; 21, humidity sensor; 30, air supply device; 31, air delivery assembly; 311, first air delivery pipe; 312, second air delivery pipe; 313, third air delivery pipe; 314, fourth air delivery pipe; 32, air storage tank; 33, air compressor; 40, positive pressure conveying device; 41, conveying pipe; 42, discharge hopper; 43, quantitative air delivery assembly; 431, sealing cylinder; 432, flow reduction mechanism; 4321, air cylinder; 4322, barrier ring; 4323, termination column; 433, flow control mechanism; 4331, separation ring; 4332, rubber cover; 434, air intake assembly; 4341, air intake box; 4342, filter plate; 435, air relief mechanism; 4351, high-pressure air relief valve; 4352, three-way pipe. DETAILED DESCRIPTION

[0033] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0034] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which the present invention pertains. The terminology used herein in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0036] For example, please refer to the attached Figure 1-8 , a smart energy-saving material positive pressure conveying system, including a storage hopper 10, the discharge end of the storage hopper 10 is connected to a conveying tank 20, the air inlet end of the conveying tank 20 is connected to an air supply device 30, and the air outlet end of the conveying tank 20 is connected to a positive pressure conveying device 40;

[0037] The air supply device 30 includes an air delivery component 31 connected to the air inlet end of the delivery tank 20, an air storage tank 32 connected to the air inlet end of the air delivery component 31, and an air compressor 33 connected to the air inlet end of the air storage tank 32;

[0038] The positive pressure conveying device 40 includes a conveying pipe 41 connected to the discharge end of the conveying tank 20 through a flange, a discharge hopper 42 connected to the end of the conveying pipe 41 away from the conveying tank 20, and a quantitative air supply component 43 sleeved on the outside of the conveying pipe 41. The bottom end of the conveying pipe 41 is provided with multiple air inlet holes;

[0039] The quantitative air delivery component 43 includes a sealing cylinder 431 sleeved on the outer surface of the delivery pipe 41, an air inlet component 434 fixed to the outer surface of the sealing cylinder 431 and connected to the air outlet end of the air delivery component 31, and a flow control mechanism 433 arranged at the bottom end of the sealing cylinder 431. The flow control mechanism 433 includes a separating ring 4331 connected to the inner wall of the sealing cylinder 431, and a rubber cover 4332 connected to the lower surface of the separating ring 4331.

[0040] For details, please refer to the attached Figure 3 and 8The gas delivery component 31 includes a first gas delivery pipe 311 and a second gas delivery pipe 312 which are sequentially provided on the shell of the gas storage tank 32 from top to bottom, the end of the first gas delivery pipe 311 away from the gas storage tank 32 is connected to the top of the delivery tank 20, and the gas outlet end of the second gas delivery pipe 312 is connected to the bottom end of the delivery tank 20. The gas delivery component 31 also includes a third gas delivery pipe 313 and a fourth gas delivery pipe 314 which are sequentially provided on the shell of the gas storage tank 32 from top to bottom, the end of the third gas delivery pipe 313 away from the gas storage tank 32 is connected to the air intake component 434, and the end of the fourth gas delivery pipe 314 away from the gas storage tank 32 is connected to the discharge hopper 42. The air intake component 434 includes an air intake box 4341 installed on the outer surface of the sealing cylinder 431, and a plurality of filter plates 4342 installed inside the air intake box 4341;

[0041] It should be noted that, in this embodiment, the high-pressure gas in the gas storage tank 32 flows into the delivery tank 20 from the top end of the delivery tank 20 through the first gas delivery pipe 311, so that the high-pressure air is mixed with the material from the top end of the delivery tank 20. The high-pressure gas flows into the delivery tank 20 from the bottom end of the delivery tank 20 through the second gas delivery pipe 312, thereby utilizing the high-pressure gas entering the delivery tank 20 from different positions, so that the high-pressure gas can be fully mixed with the material.

[0042] Furthermore, the gas enters the air inlet box 4341 through the third air delivery pipe 313, thereby providing high-pressure air to the air inlet box 4341. The high-pressure air enters the discharge hopper 42 through the fourth air delivery pipe 314 and mixes with the material inside the discharge hopper 42.

[0043] Furthermore, the high-pressure air delivered by the third air delivery pipe 313 is received by the air inlet box 4341 and filtered by the filter plate 4342 to prevent impurities in the external air from corroding the components inside the sealing cylinder 431 .

[0044] For details, please refer to the attached Figure 3 and 4The shell of the separation ring 4331 is provided with a plurality of air inlet holes 4333, and the plurality of air inlet holes 4333 are arranged around the axis of the separation ring 4331. The quantitative air supply component 43 also includes a degassing mechanism 435 provided on the outside of the sealing cylinder 431, and the degassing mechanism 435 includes a high-pressure degassing valve 4351 passing through the bottom end of the sealing cylinder 431, and a three-way pipe 4352 connected to one end of the high-pressure degassing valve 4351 extending to the outside. The quantitative air supply component 43 also includes The flow reducing mechanism 432 is provided through the top end of the sealing cylinder 431. The flow reducing mechanism 432 includes an air cylinder 4321 connected to the air outlet end of the tee pipe 4352 and mounted on the upper surface of the sealing cylinder 431. The piston rod of the air cylinder 4321 extends into the interior of the sealing cylinder 431 and is connected to a barrier ring 4322. The air release mechanism 435 also includes a terminating column 4323 mounted on the inner wall of the top end of the sealing cylinder 431 and abutting against the upper surface of the barrier ring 4322.

[0045] It should be noted that, in this embodiment, the internal space of the sealing cylinder 431 is divided into two by the separator ring 4331 , and the separator ring 4331 guides high-pressure air to flow into the bottom space of the separator ring 4331 through the air inlet hole 4333 ;

[0046] Furthermore, when the high-pressure air stored in the bottom space of the separation ring 4331 exceeds the threshold of the high-pressure relief valve 4351, the high-pressure air exceeding the threshold enters the three-way pipe 4352 through the high-pressure relief valve 4351, and supplies air to the two air cylinders 4321 at the same time through the three-way pipe 4352;

[0047] Furthermore, the high-pressure air exceeding the threshold in the tee pipe 4352 enters the air cylinder 4321 through the pipe between the tee pipe 4352 and the air inlet end of the air cylinder 4321, causing the piston rod of the air cylinder 4321 to expand and contract. The expansion and contraction of the piston rod of the air cylinder 4321 drives the barrier ring 4322 to descend, so that the barrier ring 4322 blocks the air outlet of the air inlet box 4341, thereby reducing the high-pressure air flowing into the sealing cylinder 431.

[0048] Furthermore, the blocking ring 4322 is blocked by the termination column 4323 to prevent the blocking ring 4322 from moving upward under the influence of the high-pressure air blown out by the air inlet box 4341, which would affect the blocking ring 4322 from blocking the air outlet of the air inlet box 4341.

[0049] For details, please refer to the attached Figure 1 and 5 The top shell of the delivery tank 20 is provided with a humidity sensor 21, the top shell of the gas storage tank 32 is provided with a temperature sensor 321, and a plurality of electric heating copper tubes 322 are installed inside the gas storage tank 32;

[0050] It should be noted that, in this embodiment, the humidity information inside the conveying tank 20 is monitored by a humidity sensor 21 of model RS-WS-ETH-6, and an electrical signal carrying the humidity information is transmitted to a PLC controller connected thereto, so that the PLC controller determines whether the humidity inside the conveying tank 20 exceeds a set value;

[0051] Furthermore, when the humidity inside the conveying tank 20 exceeds the set value, the temperature information inside the gas storage tank 32 is detected by the temperature sensor 321 with model GX18B20U, and the electrical signal with the temperature information is transmitted to the PLC controller connected thereto. The PLC controller determines whether the internal temperature of the gas storage tank 32 reaches the requirement, so that the PLC controller promptly controls the electric heating copper tube 322 connected thereto to heat the air inside the gas storage tank 32, so that the hot air is mixed with the material to prevent the material from being too moist.

[0052] The specific operation mode of the present invention is as follows:

[0053] The material enters the storage hopper 10 through the top opening thereof and falls into the conveying tank 20 through the storage hopper 10. The high-pressure gas in the gas storage tank 32 flows from the top of the conveying tank 20 into the conveying tank 20 through the first gas delivery pipe 311, so that the high-pressure air is mixed with the material from the top of the conveying tank 20. The high-pressure gas flows from the bottom of the conveying tank 20 into the conveying tank 20 through the second gas delivery pipe 312. In this way, the high-pressure gas entering the conveying tank 20 from different positions can be fully mixed with the material to form a suspension, which then follows the high-pressure gas into the conveying pipe 41.

[0054] The gas enters the air inlet box 4341 through the third air delivery pipe 313, thereby providing high-pressure air to the air inlet box 4341. The high-pressure air inside the air inlet box 4341 enters the sealing cylinder 431. Since the internal space of the sealing cylinder 431 is divided into two by the separator ring 4331, and the separator ring 4331 guides the high-pressure air through the air inlet hole 4333 to push one end of the rubber cover 4332, the high-pressure air flows into the bottom space of the separator ring 4331. The high-pressure air then pushes up the other end of the rubber cover 4332, so that the high-pressure air flows through the air inlet hole of the material delivery pipe 41 and mixes with the material in the material delivery pipe 41, forming a uniformly mixed suspension, which is then discharged through the discharge hopper 42.

[0055] When conveying materials, the high-pressure air stored in the bottom space of the separation ring 4331 exceeds the threshold of the high-pressure relief valve 4351. The high-pressure air exceeding the threshold enters the tee pipe 4352 through the high-pressure relief valve 4351, and supplies air to the two air cylinders 4321 at the same time through the tee pipe 4352. The high-pressure air exceeding the threshold in the tee pipe 4352 enters the air cylinder 4321 through the pipeline between the tee pipe 4352 and the air inlet end of the air cylinder 4321, so that the piston rod of the air cylinder 4321 is extended and retracted. The extension and retraction of the piston rod of the air cylinder 4321 drives the barrier ring 4322 to descend, so that the barrier ring 4322 blocks the air outlet of the air inlet box 4341, so as to prevent the high-pressure air from flowing into the sealing cylinder 431, thereby intermittently passing the high-pressure air into the conveying pipe 41 to prevent excessive high-pressure air from affecting the already mixed suspended matter.

[0056] The above description of the present invention is exemplified in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A smart and energy-saving material positive pressure conveying system, comprising a storage hopper (10), characterized in that: The discharge end of the storage hopper (10) is connected to a conveying tank (20), the air inlet end of the conveying tank (20) is connected to an air supply device (30), and the air outlet end of the conveying tank (20) is connected to a positive pressure conveying device (40); The air supply device (30) comprises an air delivery assembly (31) connected to the air inlet end of the delivery tank (20), an air storage tank (32) connected to the air inlet end of the air delivery assembly (31), and an air compressor (33) connected to the air inlet end of the air storage tank (32); The positive pressure conveying device (40) comprises a conveying pipe (41) connected to the discharge end of the conveying tank (20) via a flange, a discharge hopper (42) connected to the end of the conveying pipe (41) away from the conveying tank (20), and a quantitative air supply component (43) sleeved on the outside of the conveying pipe (41), and a plurality of air inlet holes are provided at the bottom end of the conveying pipe (41); The quantitative air delivery component (43) comprises a sealing cylinder (431) sleeved on the outer surface of the material delivery pipe (41), an air inlet component (434) fixed to the outer surface of the sealing cylinder (431) and connected to the air outlet end of the air delivery component (31), and a flow control mechanism (433) provided at the bottom end of the sealing cylinder (431), wherein the flow control mechanism (433) comprises a separating ring (4331) connected to the inner wall of the sealing cylinder (431), and a rubber cover (4332) connected to the lower surface of the separating ring (4331); The quantitative air delivery assembly (43) further comprises an air release mechanism (435) provided outside the sealing cylinder (431), the air release mechanism (435) comprising a high-pressure air release valve (4351) passing through the bottom end of the sealing cylinder (431), and a three-way pipe (4352) connected to one end of the high-pressure air release valve (4351) extending to the outside; The quantitative air delivery assembly (43) further comprises a flow reduction mechanism (432) penetrating the top end of the sealing cylinder (431), the flow reduction mechanism (432) comprising an air cylinder (4321) connected to the air outlet end of the three-way pipe (4352) and mounted on the upper surface of the sealing cylinder (431), the piston rod of the air cylinder (4321) extending to the interior of the sealing cylinder (431) and connected to a barrier ring (4322); The degassing mechanism (435) further comprises a terminating column (4323) mounted on the inner wall of the top end of the sealing cylinder (431) and abutting against the upper surface of the barrier ring (4322).

2. The intelligent energy-saving material positive pressure conveying system according to claim 1 is characterized in that: The gas delivery assembly (31) comprises a first gas delivery pipe (311) and a second gas delivery pipe (312) which are sequentially arranged on the shell of the gas storage tank (32) from top to bottom. The end of the first gas delivery pipe (311) away from the gas storage tank (32) is connected to the top end of the delivery tank (20), and the gas outlet end of the second gas delivery pipe (312) is connected to the bottom end of the delivery tank (20).

3. The intelligent energy-saving material positive pressure conveying system according to claim 1 is characterized in that: The gas delivery assembly (31) further comprises a third gas delivery pipe (313) and a fourth gas delivery pipe (314) which are sequentially arranged on the shell of the gas storage tank (32) from top to bottom. The end of the third gas delivery pipe (313) away from the gas storage tank (32) is connected to the gas inlet assembly (434), and the end of the fourth gas delivery pipe (314) away from the gas storage tank (32) is connected to the discharge hopper (42).

4. The intelligent energy-saving material positive pressure conveying system according to claim 1 is characterized in that: The air intake assembly (434) includes an air intake box (4341) installed on the outer surface of the sealing cylinder (431), and a plurality of filter plates (4342) installed inside the air intake box (4341).

5. The intelligent energy-saving positive pressure material conveying system according to claim 1 is characterized in that: The shell of the separation ring (4331) is provided with a plurality of air inlet holes (4333), and the plurality of air inlet holes (4333) are arranged around the axis of the separation ring (4331).

6. The intelligent energy-saving positive pressure material conveying system according to claim 1 is characterized in that: A humidity sensor (21) is provided on the top shell of the delivery tank (20).

7. The intelligent energy-saving positive pressure material conveying system according to claim 1 is characterized in that: A temperature sensor (321) is provided on the top shell of the gas storage tank (32), and a plurality of electric heating copper tubes (322) are installed inside the gas storage tank (32).

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