CN219469984U - Coal feeding device for high-pressure coal gasification - Google Patents

Abstract

The utility model discloses a coal feeding device for high-pressure coal gasification, which relates to the technical field of coal processing and adopts the following scheme: the utility model relates to a coal particle gasification device, which comprises a charging bucket, wherein a rotary feeder is fixedly arranged on an outlet on the lower surface of the charging bucket, a rectangular box is fixedly arranged on the right side surface of the rotary feeder, a transmission pipe is arranged on the upper side wall of the rectangular box through a first bearing seat, the transmission pipe is in transmission connection with an output shaft of the rotary feeder through a bevel gear, the transmission pipe is inserted into the charging bucket, a crushing mechanism is fixedly arranged at the position corresponding to the transmission pipe on a metal filter screen, a gas distribution box is fixedly arranged on the inner wall of the lower side end of the transmission pipe corresponding to the rectangular box, and a gas distribution mechanism is arranged at the position, close to the metal filter screen, on the transmission pipe.

Description

Coal feeding device for high-pressure coal gasification

Technical Field

The utility model relates to the technical field of coal processing, in particular to a coal feeding device for high-pressure coal gasification.

Background

Coal gasification is a common industrial means, and through controlling pollutant emission of all links, coal resources can be converted into carbon monoxide gas, and carbon monoxide has environmental friendliness, so that the coal gasification is popular in industry. Each gasification furnace grain coal conveying system comprises 2 coal adding lines, the 2 coal adding lines are identical, each coal adding line comprises a lock hopper and a sending tank, a rotary feeder is arranged at the outlet of each sending tank, materials quantitatively enter a conveying pipeline through the rotary feeder, and then the materials are conveyed to the gasification furnaces through conveying air at the outlet of the feeder.

In the prior art, when traditional sending jar adds coal to the gasifier through adding the coal device, there is the problem that the coal grain condenses, and the coagulated coal is bulky, is difficult for getting into rotatory batcher, also leads to rotatory batcher to appear the problem of scraper card material simultaneously easily, causes the feeding to block up, and the coal grain in the jar body lacks the preheating function simultaneously, and the lower coal grain of temperature gets into the gasifier and produces the smoke and dust easily, and the gasifier energy consumption is higher simultaneously, uses not environmental protection.

Disclosure of Invention

The utility model provides a coal feeding device for high-pressure coal gasification, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a coal feeding device for high pressure coal gasification, includes the material jar, fixed mounting has rotary feeder on the lower surface export of material jar, rotary feeder's right flank fixed mounting has the rectangle box, install the transmission pipe through first bearing frame on the upper side wall of rectangle box, the transmission pipe passes through bevel gear and rotary feeder's output shaft transmission to be connected, the transmission pipe is inserted and is located in the material jar, install metal filter screen between the corresponding material jar of transmission pipe upside end about the inner wall, metal filter screen has shredding mechanism with the corresponding position fixed mounting of transmission pipe, fixed mounting has the gas distribution box on the corresponding rectangle box downside inner wall of downside end of transmission pipe, gas distribution box right flank installs coupling mechanism, the position that is close to metal filter screen on the transmission pipe installs gas distribution mechanism.

Further, the outer surface of the transmission tube is of a rectangular structure, and the lower surface of the transmission tube is of an opening structure.

Further, crushing mechanism includes second bearing seat, rectangle cover and crushing blade, the second bearing seat is installed on metal filter screen, fixed mounting has the rectangle cover in the second bearing seat, and the rectangle cover is located on the upside end of drive pipe, the position along circumference evenly installs crushing blade on the rectangle cover is located metal filter screen.

Furthermore, mechanical sealing elements are arranged on the upper side wall of the gas distribution box and the lower side wall of the charging bucket corresponding to the transmission pipe.

Further, the connecting mechanism comprises a connecting pipe and a one-way check valve, the connecting pipe is fixedly arranged on the right side face of the air distribution box, and the one-way check valve is arranged on the connecting pipe.

Further, the gas distribution mechanism comprises a gas distribution pipe and branch pipes, wherein the gas distribution pipe is fixedly provided with the peripheral side faces of the transmission pipe, and the branch pipes are uniformly and fixedly arranged on the lower surface of the gas distribution pipe.

Compared with the prior art, the utility model provides the coal feeding device for high-pressure coal gasification, which has the following beneficial effects:

1. this coal feeding device for high pressure coal gasification drives the transfer line through setting up rotatory batcher and rotates through bevel gear, and the transfer line drives crushing mechanism rotatory, and the coal grain that condenses on the metal filter screen is broken, can smash the coal grain that gets into rotatory batcher, effectively avoids blockking up at rotatory batcher feed inlet, reduces the problem of scraper card material simultaneously.

2. This coal feeding device for high pressure coal gasification is through setting up coupling mechanism and gasifier exhaust piping connection, makes steam get into the transfer line through gas distribution box, and rethread gas distribution mechanism blows off, can preheat the coal granule in the material jar, reduces the production of gasifier smoke and dust, reduces gasification energy consumption simultaneously.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a cross-sectional view of the present utility model.

In the figure: 1. a charging bucket; 2. a rotary feeder; 3. a rectangular box; 4. a first bearing seat; 5. a transmission tube; 6. bevel gears; 7. a metal filter screen; 8. a crushing mechanism; 801. a second bearing seat; 802. a rectangular sleeve; 803. a crushing blade; 9. a gas distribution box; 10. a connecting mechanism; 101. a connecting pipe; 102. a one-way check valve; 11. an air distribution mechanism; 111. an air distribution pipe; 112. a branch pipe; 12. a mechanical seal.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 2, the utility model discloses a coal feeding device for high-pressure coal gasification, which comprises a charging bucket 1, wherein a rotary feeder 2 is fixedly arranged on an outlet of the lower surface of the charging bucket 1, a rectangular box 3 is fixedly arranged on the right side surface of the rotary feeder 2, a transmission pipe 5 is arranged on the upper side wall of the rectangular box 3 through a first bearing seat 4, the transmission pipe 5 is in transmission connection with an output shaft of the rotary feeder 2 through a bevel gear 6, the transmission pipe 5 is inserted into the charging bucket 1, a metal filter screen 7 is arranged between the left and right inner walls of the charging bucket 1 corresponding to the upper end head of the transmission pipe 5, a crushing mechanism 8 is fixedly arranged on the metal filter screen 7 corresponding to the transmission pipe 5, a gas distribution box 9 is fixedly arranged on the lower side inner wall of the lower end head of the transmission pipe 5 corresponding to the rectangular box 3, a connecting mechanism 10 is arranged on the right side surface of the gas distribution box 9, and a gas distribution mechanism 11 is arranged on the transmission pipe 5 at a position close to the metal filter screen 7.

Specifically, the outer surface of the driving tube 5 is in a rectangular structure, and the lower surface of the driving tube 5 is in an opening structure.

In this embodiment, the transmission tube 5 is buckled with the crushing mechanism 8, so that the rectangular sleeve 802 is driven to rotate better, and meanwhile, the opening on the lower surface of the transmission tube 5 is convenient for hot air in the air distribution box 9 to enter the transmission tube 5.

Specifically, the crushing mechanism 8 includes a second bearing seat 801, a rectangular sleeve 802 and crushing blades 803, the second bearing seat 801 is mounted on the metal filter screen 7, the rectangular sleeve 802 is fixedly mounted in the second bearing seat 801, the rectangular sleeve 802 is sleeved on the upper end of the transmission tube 5, and the crushing blades 803 are uniformly mounted on the rectangular sleeve 802 at the position on the metal filter screen 7 along the circumferential direction.

In this embodiment, the rectangular sleeve 802 rotates in the second bearing seat 801 along with the driving pipe 5, so that the rectangular sleeve 802 drives the crushing blade 803 to rotate, and the crushing blade 803 crushes the large-particle solidified coal particles filtered out from the upper surface of the metal filter screen 7.

Specifically, mechanical sealing elements 12 are arranged on the upper side wall of the gas distribution box 9 and the lower side wall of the charging bucket 1 corresponding to the driving pipe 5.

In this embodiment, the mechanical sealing member 12 makes the sealing effect between the upper side wall of the gas distribution box 9 and the lower side wall of the charging bucket 1 at the installation position of the transmission pipe 5 better.

Specifically, the connection mechanism 10 includes a connection pipe 101 and a one-way check valve 102, the connection pipe 101 is fixedly mounted on the right side surface of the air distribution box 9, and the one-way check valve 102 is mounted on the connection pipe 101.

In this embodiment, the connecting pipe 101 is in butt joint with the flue gas pipeline after gasifier purification, makes high temperature flue gas get into the gas distribution box 9 through connecting pipe 101, and the one-way check valve 102 avoids the gas reflux in the material jar 1.

Specifically, the air distribution mechanism 11 includes an air distribution pipe 111 and branch pipes 112, the air distribution pipe 111 is fixedly provided with the peripheral side surfaces of the transmission pipe 5, and the lower surface of the air distribution pipe 111 is uniformly and fixedly provided with the branch pipes 112.

In this embodiment, the upper branch pipe 112 of the gas distribution pipe 111 enables the purified high-temperature flue gas to enter the charging bucket 1, so that the coal particles in the charging bucket 1 can be preheated.

When in use, the rotary feeder 2 is started to enable coal particles in the charging bucket 1 to flow downwards, the gasification furnace is charged with coal through the conveying pipe, the metal filter screen 7 filters the coal particles which can cause the blockage of the rotary feeder 2 or the coagulation of large particles of the clamping knife, meanwhile, the output shaft of the rotary feeder 2 drives the transmission pipe 5 to rotate through the bevel gear 6, the transmission pipe 5 drives the rectangular sleeve 802 in the crushing mechanism 8 to rotate in the second bearing 801, the rectangular sleeve 802 drives the crushing blade 803 to rotate, the crushing blade 803 crushes the coagulated large particles of the coal particles filtered out from the upper surface of the metal filter screen 7, effectively avoid blocking up at rotary feeder 2 feed inlet, reduce the problem of scraper card material simultaneously, through the flue gas pipeline butt joint after connecting pipe 101 and gasifier purification in coupling mechanism 10, make high temperature flue gas get into gas distribution box 9 through connecting pipe 101, rethread gas distribution box 9 flows into in the transmission pipe 5, rethread transmission pipe 5 flows into in the gas distribution pipe 111 in the gas distribution mechanism 11, blow out through branch pipe 112, can preheat the coal grain in the material jar 1, the coal grain temperature is high, then reduce gasifier smoke and dust's production, reduce gasification energy consumption simultaneously.

To sum up, this coal feeding device for high-pressure coal gasification can smash the coal grain that gets into rotatory batcher 2, effectively avoids blockking up at rotatory batcher 2 feed inlet, reduces the problem of scraper card material simultaneously, can preheat the coal grain in the material jar 1, reduces the production of gasifier smoke and dust, reduces gasification energy consumption simultaneously.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a coal feeding device for high-pressure coal gasification, includes material jar (1), its characterized in that: the utility model discloses a rotary feeder, including material jar (1), right side face fixed mounting has rotary feeder (2) on the lower surface export of material jar (1), right side face fixed mounting has rectangle box (3) of rotary feeder (2), install transfer line (5) through first bearing frame (4) on the upper side wall of rectangle box (3), transfer line (5) are connected with the output shaft transmission of rotary feeder (2) through bevel gear (6), in material jar (1) were inserted in transfer line (5), install metal filter screen (7) between the corresponding material jar (1) of transfer line (5) upside end about inner wall, fixed mounting has crushing mechanism (8) with transfer line (5) corresponding position on metal filter screen (7), fixed mounting has gas distribution box (9) on the lower side end of transfer line (5) corresponding rectangle box (3) downside inner wall, gas distribution box (9) right side face is installed coupling mechanism (10), gas distribution mechanism (11) are installed to the position that is close to metal filter screen (7) on transfer line (5).

2. The high-pressure coal gasification coal feeding device according to claim 1, wherein: the outer surface of the transmission pipe (5) is of a rectangular structure, and the lower surface of the transmission pipe (5) is of an opening structure.

3. The high-pressure coal gasification coal feeding device according to claim 1, wherein: the crushing mechanism (8) comprises a second bearing seat (801), a rectangular sleeve (802) and a crushing blade (803), wherein the second bearing seat (801) is arranged on the metal filter screen (7), the rectangular sleeve (802) is fixedly arranged in the second bearing seat (801), the rectangular sleeve (802) is sleeved on the upper end of the transmission pipe (5), and the crushing blade (803) is uniformly arranged on the rectangular sleeve (802) at the upper position of the metal filter screen (7) along the circumferential direction.

4. The high-pressure coal gasification coal feeding device according to claim 1, wherein: mechanical sealing elements (12) are arranged on the upper side wall of the gas distribution box (9) corresponding to the transmission pipe (5) and the lower side wall of the charging bucket (1).

5. The high-pressure coal gasification coal feeding device according to claim 1, wherein: the connecting mechanism (10) comprises a connecting pipe (101) and a one-way check valve (102), the connecting pipe (101) is fixedly arranged on the right side face of the air distribution box (9), and the one-way check valve (102) is arranged on the connecting pipe (101).

6. The high-pressure coal gasification coal feeding device according to claim 1, wherein: the gas distribution mechanism (11) comprises a gas distribution pipe (111) and branch pipes (112), wherein the gas distribution pipe (111) is fixedly provided with the peripheral side surfaces of the transmission pipe (5), and the branch pipes (112) are uniformly and fixedly arranged on the lower surface of the gas distribution pipe (111).