Plunger type pulverized coal pressurized conveying device

Abstract

The utility model discloses a plunger type pulverized coal pressurized conveying device, and relates to the technical field of pulverized coal conveying. Comprising a main cylinder, a material conveying cylinder is installed on one side of the main cylinder, a telescopic mechanism is installed in the main cylinder, discharging mechanisms are installed at the two ends of the joint of the interior of the material conveying cylinder and the main cylinder, and pulverized coal conveying is completed through cooperation of the telescopic mechanism and the discharging mechanisms. Pulverized coal can be conveyed in two directions through the conveying barrel and the two discharging mechanisms in the conveying barrel, the maximum displacement distance of the circular plate can be limited by adjusting the extending distance of one end of a piston rod of the electric push rod through the electric push rod arranged on the connecting plate, and then the size of a gap between the circular plate and the circular base can be controlled. Therefore, the flow of the pulverized coal is controlled, the flow of the pulverized coal can be conveniently controlled according to actual use requirements, and the flow of the two conveying directions in the conveying barrel can be conveniently controlled according to the actual use requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of pulverized coal conveying, in particular to a plunger-type pulverized coal pressurized conveying device. Background Technique

[0002] Pulverized coal plays an important role in coal chemical industry. Pulverized coal is the raw material in the coal gasification process. By reacting pulverized coal with gasifying agent under high temperature and high pressure environment, syngas is produced. Syngas can be further used to produce chemicals, fuels and electricity. Pulverized coal can also be used in the coal liquefaction process to convert coal into liquid fuels and chemical raw materials through heating and catalytic reactions. Pulverized coal needs to accurately control the particle size in this process to improve the reaction efficiency. In the prior art, conveying devices are often used when conveying pulverized coal.

[0003] A plunger-type pulverized coal pressurized conveying device with the patent publication number of CN106516752A includes a driving component and two parallel conveying channels; the upper and lower ends of the conveying channels are respectively connected with an atmospheric storage tank and a pulverized coal feeding tank; the upper end of the conveying channel is an atmospheric pressure inlet valve, and the lower end outlet of the atmospheric pressure inlet valve is connected with a telescopic pulverized coal conveying pipeline. The lower end of the telescopic pulverized coal conveying pipeline is connected with a worm pulverized coal conveying pipeline, and the lower end of the worm pulverized coal conveying pipeline is connected with a pulverized coal inlet valve inside the piston component. The piston component is located in the pulverized coal conveying cavity. The lower end outlet of the pulverized coal conveying cavity is connected with the upper end inlet of the blanking section. The lower end outlet of the blanking section is connected with the pulverized coal feeding tank. A pulverized coal blanking valve is arranged at the connection between the pulverized coal conveying cavity and the blanking section; the driving component is used to drive the piston component to do reciprocating linear motion. This device has the characteristic of low energy consumption.

[0004] For the conveying devices with the above and similar working principles, the conveying device is a straight conveying channel. In the actual use process, there are situations where pulverized coal is conveyed in two directions. The above-mentioned conveying device is not convenient to deal with this situation, and it is not convenient to control the amount of pulverized coal conveyed according to the actual conveying requirements during the conveying process. Furthermore, under the requirements of different amounts of pulverized coal in two directions, it may not be able to meet the conveying requirements of pulverized coal in two directions. Content of the Utility Model

[0005] The purpose of the utility model is to provide a plunger-type pulverized coal pressurized conveying device to solve the problems put forward in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A plunger type pulverized coal pressurized conveying device, including a main cylinder, a feeding cylinder is installed on one side of the main cylinder, a telescopic mechanism is installed inside the main cylinder, and discharging mechanisms are installed at both ends of the connection between the inside of the feeding cylinder and the main cylinder. The pulverized coal is conveyed through the cooperation of the telescopic mechanism and the discharging mechanism. A feeding mechanism is inserted and installed on the other side of the main cylinder. The discharging mechanism includes a round seat installed on the inner wall of the feeding cylinder, a connecting plate is installed on the inner wall of the feeding cylinder, a "frustum-shaped" notch is opened at one end of the round seat facing the main cylinder, a round plate is inserted into the notch, a limiting plate fitting with the round seat is installed on the outer wall of the round plate facing the connecting plate, an electric push rod is installed on the connecting plate, the piston rod end of the electric push rod faces the limiting plate, and a spring is installed between the connecting plate and the limiting plate, and the spring surrounds the outer wall of the piston rod end of the electric push rod. An adjusting mechanism for adjusting the internal environment of the main cylinder is installed on the main cylinder.

[0007] Furthermore, the feeding mechanism includes a feeding cylinder inserted into the main cylinder. Feeding grooves and discharging grooves are respectively opened on both outer sides of the outer wall of the feeding cylinder. A transmission rod driven by a feeding motor is installed between the inner walls on both sides of the feeding cylinder, and a feeding auger is installed on the outer wall of the transmission rod.

[0008] Furthermore, the telescopic mechanism includes a hydraulic cylinder installed on the outer wall of the other side of the main cylinder. An annular block is placed inside the inner wall of the main cylinder. A circular groove adapted to the feeding cylinder is opened on the outer wall of the annular block, and the annular block is sleeved in the feeding cylinder through the circular groove. The piston rod end of the hydraulic cylinder is fixedly connected to the annular block.

[0009] Furthermore, the adjusting mechanism includes an adjusting pipe installed on the main cylinder, a valve is installed on the adjusting pipe, and a mounting plate is installed at the pipe orifice of the adjusting pipe.

[0010] Furthermore, a temperature and humidity sensor is installed on the outer wall of the end of the feeding cylinder located inside the main cylinder, and a sealing ring is installed at the connection between the main cylinder and the feeding cylinder.

[0011] Furthermore, a cross bar slidably inserted into the chute on the connecting plate is installed on the limiting plate. An annular groove is opened on the outer wall of the limiting plate at the connection between the limiting plate and the round seat. A protective cover is installed on the outer wall of the limiting plate facing the connecting plate. A round block is installed at the piston rod end of the electric push rod, an electromagnet is embedded in the round block, and an iron plate adapted to the electromagnet is embedded in the outer wall of the limiting plate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] The plunger-type pulverized coal pressure conveying device can convey pulverized coal in two directions through the feeding cylinder and the two discharging mechanisms in the feeding cylinder. By means of the electric push rod arranged on the connecting plate, the maximum distance of the displacement of the circular plate can be restricted by adjusting the distance that the end of the piston rod of the electric push rod extends, and then the size of the gap between the circular plate and the circular seat can be controlled, thereby controlling the flow rate of pulverized coal, facilitating the control of the flow rate of pulverized coal according to actual usage requirements, and facilitating the control of the flow rate in the two feeding directions in the feeding cylinder according to actual usage requirements.

[0014] Meanwhile, through the set temperature and humidity sensor, the temperature and humidity conditions inside the main cylinder can be understood, which is conducive to making environmental adjustments in cooperation with the adjustment mechanism according to the monitored temperature and humidity conditions. Through the set sealing ring, the sealing performance can be improved. Through the set adjustment mechanism, when the internal environment of the main cylinder needs to be adjusted, an external device can be connected to adjust the internal environment of the main cylinder, change the temperature and humidity inside the main cylinder, which is conducive to the storage of pulverized coal. By means of the electromagnet arranged in the circular block cooperating with the iron plate arranged in the limiting plate, the electromagnet can be energized to adsorb the iron plate when needed, and the gap between the circular plate and the circular seat can be actively adjusted by starting the electric push rod. Description of the Drawings

[0015] Figure 1 is the overall structural schematic diagram of the present utility model;

[0016] Figure 2 is the internal structural schematic diagram of the main cylinder of the present utility model;

[0017] Figure 3 is the sectional structural schematic diagram of the feeding mechanism of the present utility model;

[0018] Figure 4 is the sectional structural schematic diagram of the discharging mechanism of the present utility model.

[0019] In the figure: 1. Main cylinder; 2. Adjustment mechanism; 201. Adjustment pipe; 202. Installation plate; 203. Valve; 3. Telescopic mechanism; 301. Hydraulic cylinder; 302. Ring-shaped block; 4. Feeding mechanism; 401. Feeding motor; 402. Feeding cylinder; 403. Transmission rod; 404. Feeding auger; 5. Feeding cylinder; 6. Discharging mechanism; 601. Circular seat; 602. Circular plate; 603. Limiting plate; 604. Iron plate; 605. Electromagnet; 606. Circular block; 607. Spring; 608. Electric push rod; 609. Connecting plate; 610. Protective cover; 611. Annular groove; 7. Sealing ring; 8. Temperature and humidity sensor. Detailed Embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] During the process of pulverized coal transportation, a transportation device is required. The transportation device provided by the present invention is specifically used for pulverized coal transportation in two directions and adjusting the transportation flow rate according to requirements. During the process of using this device for transportation operations, it is necessary to ensure that the temperature and humidity inside the main cylinder and the transportation cylinder are within the normal range, and it is necessary to ensure the tightness of the connections of each component, so as to ensure the normal operation of the device.

[0022] As Figures 1 - 4 shown, the present invention provides a technical solution: a plunger-type pulverized coal pressure transportation device, including a main cylinder 1. A feeding cylinder 5 is installed on one side of the main cylinder 1. A telescopic mechanism 3 is installed inside the main cylinder 1. At both ends of the connection between the inside of the feeding cylinder 5 and the main cylinder 1, a discharging mechanism 6 is installed. The pulverized coal transportation is completed by the cooperation of the telescopic mechanism 3 and the discharging mechanism 6. A feeding mechanism 4 is inserted and installed on the other side of the main cylinder 1. The discharging mechanism 6 includes a circular seat 601 installed on the inner wall of the feeding cylinder 5. A connecting plate 609 is installed on the inner wall of the feeding cylinder 5. One end of the circular seat 601 facing the main cylinder 1 is provided with a "frustum-shaped" notch. A circular plate 602 is inserted into the notch. A limiting plate 603 that fits with the circular seat 601 is installed on the outer wall of one end of the circular plate 602 facing the connecting plate 609. An electric push rod 608 is installed on the connecting plate 609. One end of the piston rod of the electric push rod 608 faces the limiting plate 603. A spring 607 is installed between the connecting plate 609 and the limiting plate 603. The spring 607 surrounds the outer wall of one end of the piston rod of the electric push rod 608. A regulating mechanism 2 for regulating the internal environment of the main cylinder 1 is installed on the main cylinder 1.

[0023] It should be noted that when it is necessary to convey pulverized coal, first, the pulverized coal is conveyed into the main cylinder 1 by the feeding mechanism 4. By the cooperation of the telescopic mechanism 3 in the main cylinder 1 and the discharging mechanism 6 in the feeding cylinder 5, pressurized conveying can be achieved. During the pressurization process of the telescopic mechanism 3, the gas in the main cylinder 1 and the feeding cylinder 5 will squeeze the circular plate 602 in the discharging mechanism 6. Through the gap between the circular plate 602 and the circular seat 601, the pulverized coal can be output. By the electric push rod 608 arranged on the connecting plate 609, the maximum displacement distance of the circular plate 602 can be limited by adjusting the distance that the piston rod end of the electric push rod 608 extends, and then the size of the gap between the circular plate 602 and the circular seat 601 can be controlled, so as to control the flow rate of the pulverized coal, which is convenient for controlling the size of the flow rate of the pulverized coal according to the actual use requirements. When the pressurization of the telescopic mechanism 3 ends, through the spring 607 between the connecting plate 609 and the limiting plate 603, the circular plate 602 can be reset under the elastic force of the spring 607. Through the arranged limiting plate 603, the position of the circular plate 602 is fixed and limited.

[0024] As Figure 3 shown in the figure, the feeding mechanism 4 includes a feeding cylinder 402 inserted into the main cylinder 1. Feeding grooves and discharging grooves are respectively arranged on both outer walls of the feeding cylinder 402. A transmission rod 403 driven by a feeding motor 401 is installed between the inner walls on both sides of the feeding cylinder 402. A feeding auger 404 is installed on the outer wall of the transmission rod 403.

[0025] It should be noted that when it is necessary to use the feeding mechanism 4, the pulverized coal is put into the feeding cylinder 402 through feeding. By starting the feeding motor 401 on the feeding cylinder 402, the transmission rod 403 is driven to rotate, and then the feeding auger 404 is driven to rotate, so as to convey the pulverized coal into the interior of the main cylinder 1. The pulverized coal in the feeding cylinder 402 is discharged into the interior of the main cylinder 1 through the discharging groove.

[0026] As Figure 2 shown in the figure, the telescopic mechanism 3 includes a hydraulic cylinder 301 installed on the outer wall of the other side of the main cylinder 1. An annular block 302 is placed in the inner wall of the main cylinder 1. A circular groove adapted to the feeding cylinder 402 is opened on the outer wall of the annular block 302. The annular block 302 is sleeved in the feeding cylinder 402 through the circular groove. One end of the piston rod of the hydraulic cylinder 301 is fixedly connected to the annular block 302.

[0027] It should be noted that when it is necessary to use the telescopic mechanism 3, by starting the hydraulic cylinder 301, the annular block 302 is driven to move reciprocally. When the annular block 302 is pressurized, the discharging groove on the feeding cylinder 402 will be blocked and the feeding will stop. When the pressurization of the annular block 302 is cancelled, the discharging groove on the feeding cylinder 402 will be exposed and the feeding will be carried out.

[0028] As Figure 2As shown, the adjusting mechanism 2 includes an adjusting pipe 201 installed on the main cylinder 1. A valve 203 is installed on the adjusting pipe 201, and a mounting plate 202 is installed at the pipe orifice of the adjusting pipe 201.

[0029] It should be noted that the environment inside the main cylinder 1 is particularly important for pulverized coal transportation. By providing the adjusting pipe 201, the mounting plate 202, and the valve 203, when the environment inside the main cylinder 1 needs to be adjusted, an external device can be connected to adjust the environment inside the main cylinder 1, such as transporting hot air and moisture to change the temperature and humidity inside the main cylinder 1, which is beneficial to the storage of pulverized coal.

[0030] As Figure 2 and Figure 3 As shown, a temperature and humidity sensor 8 is installed on the outer wall of one end of the feeding cylinder 402 inside the main cylinder 1, and a sealing ring 7 is installed at the connection between the main cylinder 1 and the feeding cylinder 402.

[0031] It should be noted that by providing the temperature and humidity sensor 8, the temperature and humidity conditions inside the main cylinder 1 can be understood, which is beneficial to making environmental adjustments in cooperation with the adjusting mechanism 2 according to the monitored temperature and humidity conditions. By providing the sealing ring 7, the sealing performance can be improved.

[0032] As Figure 4 As shown, a cross bar is installed on the limiting plate 603 and is slidably inserted into the chute on the connecting plate 609. An annular groove 611 is formed on the outer wall of the limiting plate 603 at the connection between the limiting plate 603 and the round seat 601. A protective cover 610 is installed at one end of the outer wall of the limiting plate 603 facing the connecting plate 609. One end of the piston rod of the electric push rod 608 is installed with a round block 606. An electromagnet 605 is embedded in the round block 606, and an iron plate 604 adapted to the electromagnet 605 is embedded on the outer wall of the limiting plate 603.

[0033] It should be noted that by providing the cross bar, the round plate 602 and the limiting plate 603 will not shift during movement, playing a positioning role. Through the annular groove 611 provided on the limiting plate 603, it is convenient for pulverized coal to pass through. By providing the protective cover 610, the components between the connecting plate 609 and the limiting plate 603 can be protected, reducing the impact on the components when pulverized coal passes through, which is beneficial to use. By cooperating the electromagnet 605 provided in the round block 606 with the iron plate 604 provided in the limiting plate 603, the electromagnet 605 can be energized when needed to adsorb the iron plate 604, and by starting the electric push rod 608, the gap between the round plate 602 and the round seat 601 can be adjusted.

[0034] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended embodiments and their equivalents.

Claims

1. A plunger-type pulverized coal pressure conveying device, comprising a main cylinder (1), characterized in that: On one side of the main cylinder (1), a feeding cylinder (5) is installed. An expansion mechanism (3) is installed inside the main cylinder (1). At both ends of the connection between the inside of the feeding cylinder (5) and the main cylinder (1), discharging mechanisms (6) are installed. The pulverized coal is conveyed by the cooperation of the expansion mechanism (3) and the discharging mechanism (6). On the other side of the main cylinder (1), a feeding mechanism (4) is inserted and installed. The discharging mechanism (6) includes a circular seat (601) installed on the inner wall of the feeding cylinder (5). A connecting plate (609) is installed on the inner wall of the feeding cylinder (5). At one end of the circular seat (601) facing the main cylinder (1), a "frustum-shaped" notch is opened. A circular plate (602) is inserted into the notch. On the outer wall of one end of the circular plate (602) facing the connecting plate (609), a limiting plate (603) that fits with the circular seat (601) is installed. An electric push rod (608) is installed on the connecting plate (609). One end of the piston rod of the electric push rod (608) faces the limiting plate (603). A spring (607) is installed between the connecting plate (609) and the limiting plate (603). The spring (607) surrounds the outer wall of one end of the piston rod of the electric push rod (608). An adjusting mechanism (2) for adjusting the internal environment of the main cylinder (1) is installed on the main cylinder (1).

2. The plunger-type pulverized coal pressure conveying device according to claim 1, characterized in that: The feeding mechanism (4) includes a feeding cylinder (402) inserted into the main cylinder (1). Feeding grooves and discharging grooves are respectively opened on both outer sides of the outer wall of the feeding cylinder (402). A transmission rod (403) driven by a feeding motor (401) is installed between the inner walls on both sides of the feeding cylinder (402). A feeding auger (404) is installed on the outer wall of the transmission rod (403).

3. The plunger type pulverized coal pressure conveying device according to claim 1, characterized in that: The expansion mechanism (3) includes a hydraulic cylinder (301) installed on the outer wall of the other side of the main cylinder (1). An annular block (302) is placed in the inner wall of the main cylinder (1). A circular groove adapted to the feeding cylinder (402) is opened on the outer wall of the annular block (302). The annular block (302) is sleeved in the feeding cylinder (402) through the circular groove. One end of the piston rod of the hydraulic cylinder (301) is fixedly connected to the annular block (302).

4. A plunger-type pulverized coal pressure conveying device according to claim 1, characterized in that: The adjusting mechanism (2) includes an adjusting pipe (201) installed on the main cylinder (1). A valve (203) is installed on the adjusting pipe (201). A mounting plate (202) is installed at the pipe orifice of the adjusting pipe (201).

5. The plunger type pulverized coal pressure conveying device according to claim 2, characterized in that: A temperature and humidity sensor (8) is installed on the outer wall of one end of the feeding cylinder (402) located inside the main cylinder (1). A sealing ring (7) is installed at the connection between the main cylinder (1) and the feeding cylinder (402).

6. A plunger-type pulverized coal pressure conveying device according to claim 1, characterized in that: A cross bar which is slidably inserted into a chute on a connecting plate (609) is installed on the limiting plate (603). An annular groove (611) is formed on the outer wall of the limiting plate (603) at the connection between the limiting plate (603) and the circular seat (601). A protective cover (610) is installed on one end of the outer wall of the limiting plate (603) facing the connecting plate (609). A circular block (606) is installed at one end of the piston rod of the electric push rod (608). An electromagnet (605) is embedded in the circular block (606). An iron plate (604) adapted to the electromagnet (605) is embedded on the outer wall of the limiting plate (603).

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