High-pressure pulverized coal dense-phase conveying device

Abstract

The utility model provides a high-pressure pulverized coal dense-phase conveying device, and belongs to the technical field of dense-phase conveying. The high-pressure pulverized coal dense-phase conveying device comprises a plugging assembly, a first conveying pipe and a second conveying pipe. The plugging assembly comprises a plugging box, an electric sliding table, a first plugging plate, a torsion spring, a second plugging plate, a pressure sensor and a control processor, during use, when a dense-phase conveying pipeline below the second conveying pipe is damaged and leaks gas, gas and pulverized coal directly fly out from the damaged and leaked position, the pressure borne by the pressure sensor is gradually reduced, and the control processor controls the control processor to control the control processor; the pressure sensor sends an electric signal to the electric sliding table, the control processor controls the electric sliding table to work, the electric sliding table inserts the first blocking plate into the blocking box, then the first conveying pipe is blocked, gas and pulverized coal above the first conveying pipe can be prevented from flowing back, waste of the pulverized coal can be reduced, and the influence of the pulverized coal on the environment can be reduced; and the use height is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of dense phase conveying, in particular to a high-pressure pulverized coal dense phase conveying device. BACKGROUND

[0002] Coal is a black solid that can burn, mainly composed of carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorus elements, is a very important energy, and is also an important raw material for metallurgical and chemical industries, and pulverized coal refers to coal with a particle size of less than 6 mm. The pulverized coal is easy to fly everywhere in the open conveying process, so the pulverized coal is usually conveyed by high-pressure dense phase conveying, that is, the gas in the pipeline is used to convey the pulverized coal in a dense phase.

[0003] In the traditional high-pressure pulverized coal dense phase conveying device technology, the conveying pipeline is relatively simple as a whole, which is only a simple conveying pipeline. In the process of conveying the pulverized coal upward, the conveying pipeline lacks a structure for blocking the reverse flow of the pulverized coal. When the lower conveying pipeline is damaged and leaks, the gas pressure in the upper conveying pipeline decreases, and the pulverized coal in the upper conveying pipeline will fall under the influence of its own gravity. The falling pulverized coal will directly fly out from the damaged and leaking pipeline, which will cause waste of the pulverized coal and will affect the surrounding environment, and the practicality is relatively low. CONTENT OF THE INVENTION

[0004] In order to make up for the above shortcomings, the present application provides a high-pressure pulverized coal dense phase conveying device, which aims to improve the problem that the pulverized coal is wasted and the surrounding environment is affected, and the practicality is relatively low.

[0005] The present application provides a high-pressure pulverized coal dense phase conveying device, which comprises a plugging assembly, a first conveying pipe and a second conveying pipe.

[0006] The plugging assembly comprises a plugging box, an electric sliding table, a first plugging plate, a torsional spring, a second plugging plate, a pressure sensor and a control processor. The electric sliding table is connected to one side of the plugging box. The first plugging plate is connected to the moving end of the electric sliding table. The first plugging plate is slidingly inserted into the inside of the plugging box. One end of the torsional spring is connected to the plugging box. One side of the second plugging plate is connected to the other end of the torsional spring. The pressure sensor is connected to the lower surface of the second plugging plate. The control processor is connected to one side of the plugging box. The pressure sensor and the electric sliding table are electrically connected to the control processor.

[0007] The bottom end of the first conveying pipe is connected to the plugging box in communication. The upper surface of the first plugging plate is attached to the bottom end of the first conveying pipe.

[0008] The top end of the second conveying pipe is connected to the plugging box in communication. The second plugging plate is arranged on the top end of the second conveying pipe. The pressure sensor is located in the inside of the second conveying pipe.

[0009] In a specific embodiment, one side of the sealing box is provided with a connecting plate, and the electric sliding table is fixedly connected to the upper surface of the connecting plate.

[0010] In a specific embodiment, the lower surface of the connecting plate is provided with a reinforcing rod, the bottom end of the reinforcing rod is fixedly connected to one side of the sealing box, and the reinforcing rod is obliquely arranged.

[0011] In a specific embodiment, the lower surface of the first sealing plate is fixedly connected to the moving end of the electric sliding table, the first sealing plate is slidably penetrated through one side of the sealing box, the side of the first sealing plate away from the electric sliding table is obliquely arranged, and the upper surface of the first sealing plate is slidably attached to the top wall inside the sealing box.

[0012] In a specific embodiment, the inside of the sealing box is provided with a support plate, a gap is left between the support plate and the side of the sealing box away from the electric sliding table, the first sealing plate is slid above the support plate, and the lower surface of the first sealing plate is slidably attached to the upper surface of the support plate.

[0013] In a specific embodiment, one end of the torsion spring is fixedly connected to the bottom wall inside the sealing box, and the second sealing plate is rotatably arranged inside the sealing box.

[0014] In a specific embodiment, the inside of one side of the sealing box is provided with a limiting block, the limiting block is obliquely arranged, and the limiting block is correspondingly arranged with the second sealing plate.

[0015] In a specific embodiment, one side of the second sealing plate is provided with an L-shaped rotating shaft, the L-shaped rotating shaft is rotatably penetrated through one side of the sealing box, and the L-shaped rotating shaft is rotatably connected to one side of the sealing box.

[0016] In a specific embodiment, the top end of the first conveying pipe is provided with a first connecting flange, and the bottom end of the first conveying pipe is fixedly penetrated through the top wall of the sealing box.

[0017] In a specific embodiment, the bottom end of the second conveying pipe is provided with a second flange, and the top end of the second conveying pipe is fixedly penetrated through the bottom wall of the sealing box.

[0018] The utility model discloses an advantageous effect is: the utility model discloses a high pressure pulverized coal dense phase conveying device through above -mentioned design, when using, the first conveying pipe and second conveying pipe are communicated in dense phase conveying pipeline, gas and pulverized coal rise in the second conveying pipe inside, and electric sliding table pulls the first plugging plate movement to the direction of being away from the inside of plugging box, and gas and pulverized coal can be moved up and push the second plugging plate, then gas and pulverized coal can pass through the plugging box and first conveying pipe and enter dense phase conveying pipeline, when the dense phase conveying pipeline below second conveying pipe breaks down and leaks, and gas and pulverized coal directly fly out from the place of breaking down and leaking, and the pressure gradually reduces that pressure sensor receives, and pressure sensor sends electric signal to electric sliding table, and control processor controls electric sliding table work, and electric sliding table inserts the first plugging plate into the inside of plugging box, and then plugging the first conveying pipe, and then can prevent the gas and pulverized coal above the first conveying pipe backflow, and then can reduce the waste of pulverized coal, can reduce the influence of pulverized coal to the environment, when using, it is higher. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 is the first perspective structure schematic diagram of high pressure pulverized coal dense phase conveying device provided by the embodiments of the present application;

[0021] Figure 2 is the second perspective structure schematic diagram of high pressure pulverized coal dense phase conveying device provided by the embodiments of the present application;

[0022] Figure 3 is the section structure schematic diagram of plugging assembly provided by the embodiments of the present application;

[0023] Figure 4 is the section structure schematic diagram of plugging box provided by the embodiments of the present application;

[0024] Figure 5 is the partial circuit connection block diagram schematic diagram of electric sliding table, pressure sensor and control processor provided by the embodiments of the present application.

[0025] In the figure: 100 - plugging assembly; 110 - plugging box; 111 - connecting plate; 1111 - reinforcing rod; 112 - support plate; 113 - limiting block; 120 - electric sliding table; 130 - first plugging plate; 140 - torsional spring; 150 - second plugging plate; 151 - L-shaped rotating shaft; 160 - pressure sensor; 170 - control processor; 200 - first conveying pipe; 210 - first connecting flange; 300 - second conveying pipe; 310 - second flange. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0028] Referring to Figure 1 , the present application provides a high-pressure pulverized coal dense-phase conveying device, which comprises a plugging assembly 100, a first conveying pipe 200, and a second conveying pipe 300.

[0029] Referring to Figures 1-5 , the plugging assembly 100 comprises a plugging box 110, an electric sliding table 120, a first plugging plate 130, a torsional spring 140, a second plugging plate 150, a pressure sensor 160, and a control processor 170. The electric sliding table 120 is connected to one side of the plugging box 110. One side of the plugging box 110 is provided with a connecting plate 111. The electric sliding table 120 is fixedly connected to the upper surface of the connecting plate 111. The lower surface of the connecting plate 111 is provided with a reinforcing rod 1111. The bottom end of the reinforcing rod 1111 is fixedly connected to one side of the plugging box 110. The reinforcing rod 1111 is obliquely arranged.

[0030] In the present application, the first plugging plate 130 is connected to the moving end of the electric sliding table 120. The first plugging plate 130 is slidingly inserted into the inside of the plugging box 110.

[0031] The lower surface of the first sealing plate 130 is fixedly connected to the moving end of the electric sliding table 120, the first sealing plate 130 is slidably penetrated through one side of the sealing box 110, the side of the first sealing plate 130 away from the electric sliding table 120 is obliquely arranged, the upper surface of the first sealing plate 130 is slidably attached to the top wall inside the sealing box 110, the inside of the sealing box 110 is provided with a supporting plate 112, a gap is left between the supporting plate 112 and the side of the sealing box 110 away from the electric sliding table 120, the first sealing plate 130 is slid above the supporting plate 112, and the lower surface of the first sealing plate 130 is slidably attached to the upper surface of the supporting plate 112.

[0032] In the embodiment, one end of the torsion spring 140 is connected to the sealing box 110, and the other end of the torsion spring 140 is fixedly connected to the bottom wall inside the sealing box 110.

[0033] In the application, the second sealing plate 150 rotates inside the sealing box 110, the inside of one side of the sealing box 110 is provided with a limiting block 113, the limiting block 113 is obliquely arranged, the limiting block 113 is correspondingly arranged with the second sealing plate 150, one side of the second sealing plate 150 is provided with an L-shaped rotating shaft 151, the L-shaped rotating shaft 151 is rotatably penetrated through one side of the sealing box 110, the L-shaped rotating shaft 151 is rotatably connected to one side of the sealing box 110, and the L-shaped rotating shaft 151 can be manually rotated by the worker.

[0034] In the specific arrangement, the pressure sensor 160 is connected to the lower surface of the second sealing plate 150, the control processor 170 is connected to one side of the sealing box 110, the pressure sensor 160 and the electric sliding table 120 are electrically connected with the control processor 170, and the pressure sensor 160 and the control processor 170 can be connected in a wireless mode.

[0035] Please refer to Figures 1-4 , the bottom end of the first conveying pipe 200 is connected with the sealing box 110, the top end of the first conveying pipe 200 is provided with a first connecting flange plate 210, the bottom end of the first conveying pipe 200 is fixedly penetrated through the top wall of the sealing box 110, the upper surface of the first sealing plate 130 is attached to the bottom end of the first conveying pipe 200, and the upper surface of the first sealing plate 130 is slidably attached to the bottom end of the first conveying pipe 200.

[0036] Please refer to Figures 1-4 , the top end of the second conveying pipe 300 is connected with the sealing box 110, the bottom end of the second conveying pipe 300 is provided with a second flange plate 310, the top end of the second conveying pipe 300 is fixedly penetrated through the bottom wall of the sealing box 110, the second sealing plate 150 is arranged on the top end of the second conveying pipe 300, and the pressure sensor 160 is located inside the second conveying pipe 300.

[0037] Specifically, the working principle of the high-pressure pulverized coal dense phase conveying device is as follows: when in use, the first conveying pipe 200 and the second conveying pipe 300 are connected in the dense phase conveying pipeline, and then the pulverized coal conveying can be carried out. During the conveying, the gas and the pulverized coal rise in the second conveying pipe 300, and the gas and the pulverized coal will extrude the pressure sensor 160. After the pressure sensor 160 senses the pressure, an electric signal will be generated to the control processor 170. After the control processor 170 receives the electric signal, the electric sliding table 120 will be controlled to work. The electric sliding table 120 pulls the first blocking plate 130 away from the inside of the blocking box 110, so that the first blocking plate 130 does not block the first conveying pipe 200. Then the gas and the pulverized coal will push the second blocking plate 150 upward, and then the gas and the pulverized coal can enter the dense phase conveying pipeline through the blocking box 110 and the first conveying pipe 200. The limiting block 113 supports and limits the second blocking plate 150. Under the action of the torsional spring 140 and the limiting block 113, the second blocking plate 150 is always in an inclined state, so that the gas and the pulverized coal always exert pressure on the pressure sensor 160. When the dense phase conveying pipeline below the second conveying pipe 300 is damaged and leaks, the gas and the pulverized coal will directly fly out from the damaged and leaking place. The pressure on the pressure sensor 160 gradually decreases, and the second blocking plate 150 resets under the action of the torsional spring 140. The pressure sensor 160 sends an electric signal to the electric sliding table 120, and the control processor 170 controls the electric sliding table 120 to work. The electric sliding table 120 inserts the first blocking plate 130 into the inside of the blocking box 110, thereby blocking the first conveying pipe 200, preventing the gas and the pulverized coal above the first conveying pipe 200 from flowing back, reducing the waste of the pulverized coal, and reducing the impact of the pulverized coal on the environment. It is higher in use.

[0038] It should be noted that the specific model specifications of the electric sliding table 120, the pressure sensor 160 and the control processor 170 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in the art, and therefore will not be described in detail.

[0039] The power supply and principle of the electric sliding table 120, the pressure sensor 160 and the control processor 170 are clear to those skilled in the art, and will not be described in detail here.

[0040] The above is only an embodiment of the present application and does not limit the protection scope of the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0041] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A high pressure dense phase pneumatic coal conveying apparatus, characterized in that, The utility model provides a kind of sealing assembly (100), including sealing box (110), electric sliding platform (120), first sealing plate (130), torsion spring (140), second sealing plate (150), pressure sensor (160) and control processor (170), the electric sliding platform (120) is connected to the side of the sealing box (110), the first sealing plate (130) is connected with the moving end of the electric sliding platform (120), the first sealing plate (130) is slidably inserted in the inside of the sealing box (110), one end of the torsion spring (140) is connected with the sealing box (110), one side of the second sealing plate (150) is connected with the other end of the torsion spring (140), the pressure sensor (160) is connected to the lower surface of the second sealing plate (150), the control processor (170) is connected to the side of the sealing box (110), and the pressure sensor (160) and the electric sliding platform (120) are electrically connected with the control processor (170). First conveying pipe (200), the bottom end of the first conveying pipe (200) is communicated with the sealing box (110), and the upper surface of the first sealing plate (130) is attached to the bottom end of the first conveying pipe (200). Second conveying pipe (300), the top end of the second conveying pipe (300) is communicated with the sealing box (110), the second sealing plate (150) is arranged on the top end of the second conveying pipe (300), and the pressure sensor (160) is located in the second conveying pipe (300). One side of the sealing box (110) is provided with a connecting plate (111), and the electric sliding platform (120) is fixedly connected to the upper surface of the connecting plate (111).

2. A high pressure dense phase pneumatic coal conveying apparatus as claimed in claim 1, wherein, The lower surface of the connecting plate (111) is provided with a reinforcing rod (1111), the bottom end of the reinforcing rod (1111) is fixedly connected to one side of the sealing box (110), and the reinforcing rod (1111) is inclined.

3. A high pressure dense phase pneumatic coal conveying system as claimed in claim 2, wherein, The lower surface of the first sealing plate (130) is fixedly connected to the moving end of the electric sliding platform (120), the first sealing plate (130) is slidably penetrated into one side of the sealing box (110), the side, away from the electric sliding platform (120), of the first sealing plate (130) is inclined, and the upper surface of the first sealing plate (130) is slidably attached to the top wall inside the sealing box (110).

4. A high pressure dense phase pneumatic coal conveying system as claimed in claim 1, wherein, The inside of the sealing box (110) is provided with a support plate (112), a gap is left between the support plate (112) and the side, away from the electric sliding platform (120), of the sealing box (110), the first sealing plate (130) slides above the support plate (112), and the lower surface of the first sealing plate (130) is slidably attached to the upper surface of the support plate (112).

5. A high pressure dense phase pneumatic coal conveying apparatus as claimed in claim 4, wherein, One end of the torsion spring (140) is fixedly connected to the bottom wall inside the sealing box (110), and the second sealing plate (150) rotates in the inside of the sealing box (110).

6. A high pressure dense phase pneumatic coal conveying system as claimed in claim 1, wherein, ​ 7. A high pressure dense phase pneumatic coal conveying system as claimed in claim 6, wherein, The inside of one side of the sealing box (110) is provided with a limiting block (113), the limiting block (113) is arranged obliquely, and the limiting block (113) is arranged correspondingly with the second sealing plate (150).

8. A high pressure dense phase pneumatic coal conveying system as claimed in claim 1, wherein, One side of the second sealing plate (150) is provided with an L-shaped rotating shaft (151), the L-shaped rotating shaft (151) is rotatably penetrated through one side of the sealing box (110), and the L-shaped rotating shaft (151) is rotatably connected with one side of the sealing box (110).

9. A high pressure dense phase pneumatic coal conveying system as claimed in claim 1, wherein, The top end of the first conveying pipe (200) is provided with a first connecting flange plate (210), and the bottom end of the first conveying pipe (200) is fixedly penetrated through the top wall of the sealing box (110).

10. A high pressure dense phase pneumatic coal conveying system as claimed in claim 1, wherein, The bottom end of the second conveying pipe (300) is provided with a second flange plate (310), and the top end of the second conveying pipe (300) is fixedly penetrated through the bottom wall of the sealing box (110).

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